literature cited - archive.lib.msu.eduarchive.lib.msu.edu/tic/thesdiss/landschoot1984d.pdf ·...

LITERATURE CITED

1. Allen, S.E. 1980. Sulfur-coated urea: cover controlsnitrogen release. Weeds, Trees, and Turf. 19(6):54-55.

2. Allen, S.E., C.M. Hunt, and G.L. Terman. 1971.Nitrogen release from sulfur-coated urea asaffected by coating weight, placement, andtemperature. Agron. J. 63:529-533.

3. Allen, S.E., and D.A. Mays. 1974. Coated and otherslow-release fertilizers for forages. p. 599-582. In D.A. Mays (ed.) Forage fertilization.Am. Soc. Agron., Madison, Wis.

4. Anonymous. 1980. SKW Trostberg product information.SKW Trostberg, West Germany.

5. Anonymous. 1980. Nitroform 38-0-0: long lastingorganic nitrogen. Boots Hercules AgrochemicalsCo. Product Data., Wilmington, Del.

6. Amberger, A., and K. Vi1smeier. 1979. Breakdown ofdicyandiamide in quartz sand and soils. Z.Pflanzenernaehr. Bodenkd. 142:778-785.

7. Association of American Plant Food ControlOfficials. 1983. Official publication, no. 36.AAPFCO, Inc., West Lafayette, Ind.

8. Basaraba, J. 1964. Mineralization of urea-formaldehydecompounds at different pH levels and temperatures.Can. J. Soil Sci. 44:131-136.

9. Beard, J.B. 1973. Turfgrass: science and culture.Prentice-Hall Inc., Englewood Cliffs, N.J.

10. Beaton, J.D., W.A. Hubbard, and R.C. Speer. 1967.Coated urea, thiourea, urea-formaldehyde,hexamide, oxamide, glyco1uril, and oxidizednitrogen enriched coal as slowly available sourcesof nitrogen for orchardgrass. Agron.J. 59:127-133.

11. Bundy, L.G., and J.M. Bremner. 1973. Inhibition ofnitrification in soils. Soil Sci. Soc. Am. Proc.37:396-398.

12. Cantare1la, H., and M.A. Tabatabai. 1983. Amides assources of nitrogen for plants. Soil Sci. Soc. Am.J. 47:599-603.

13. Clark, K.G., J.Y. Yee, and K.S. Love. 1948. Newsynthetic nitrogen fertilizer: preparation andproperties of urea-form. Ind. Eng. Chem.40:1178-1183.

14. Corke, C.T., and J.B. Robinson. 1966. Microbialdecomposition of various fractions ofureaformaldehyde. Nature 211(5054):1202-1203.

15. Dawson, M.D., and W. Akratanakul. 1973. SCll - theeffect of soil temperature and moisture. SulfurInst. J. 9(F-W):14.

16. Delwiche, C.C. 1970. The nitrogen cycle. Sci. Am.223:136-146.

17. DeMent, J.D., C.M. Hunt, and G. Stanford. 1963.Hydrolysis, nitrification, and nitrogenavailability of oxamide as influenced by granulesize. J. Agric. Food Chem. 9:453-456.

18. Detrick, J.H., and R.H. Doberneck. 1979. The newsolution nitrogen fertilizer. p. 104-107. In

J.R. Street (ed.) Proc. 20th Ill. TurfgrassConf.

19. Dilz, K., and J.J. Steggerda. 1962. Nitrogenavailability of oxamide and ammonium nitratelimestone. J. Agric. Food Chem. 10:338-340.

20. Engelstad, a.p., C.M. Hunt, and G.L. Terman. 1964.Response of corn to nitrogen in oxamide andammonium nitrate in greenhouse experiments.Agron. J. 56:579-582.

21. Frankenberger, W.T., and M.A. Tabatabai. 1982.Transformations of amide nitrogen in soils. SoilSci. Soc. Am. J. 46:280-284.

22. Fuller, W.H., and K.G. Clark. 1947. Microbiologicalstudies on urea-formaldehyde preparations. SoilSci. Soc. Am. Proc. 12:198-202.

87

23. Funk, R. 1979. Characteristics of soluble nitrogenfertilizers. p. 72-75. In J.R. Street (ed.) Proc.20th Ill. Turfgrass Conf.

24. Hamamota, A.D. 1966. Isobutylidene diurea as a slowacting nitrogen and the studies in this field inJapan. Proc. No. 90. The Fertiliser Society. 44Russell Square, London, W.C.I. 77p.

88

25. Hauck. R.D •• and M. Koshino. 1971. Slow-release andamended fertilizers. p. 445-515. In R.A. Olson.T.J. Army. J.J. Hanway. and V.J. Kilmer (ed.)Fertilizer technology and use. Soil Sci. Soc. Am ••Madison. Wis.

26. Hays. J.T •• and W.W. Haden. 1966. Soluble fractions ofureaforms - nitrification. leaching and burningproperties. J. Agric. Food Chem. 14:339-341.

27. Hornick. S.B .• L.T. Sikora. S.B. Sterrett. and J.J.Murray. 1984. Utilization of sewage sludge as asoil conditioner and fertilizer for plant growth.Agricultural Environmental Quality InstitutePublication. USDA. Beltsville. Md.

28. Hughes. T.D. 1976. Nitrogen release from isobutylidenediureaj soil pH and fertilizer particle sizeeffects. Agron. J. 68:103-106.

29. Hummel. N.W. Jr •• 1980. Evaluation of slow-releasenitrogen sources for turfgrass fertilization. M.S.Thesis. The Pennsylvania State University.University Park. Pa.

30. Hummel. N.W. Jr •• 1982. Evaluation of sulfur-coatedurea for fertilization of turfgrasses. PhD. Thesis.The Pennsylvania State University. University Park.Pa.

31. Hummel. N.W. Jr .• and D.V. Waddington. 1981.Evaluation of slow-release nitrogen sources onBaron Kentucky bluegrass. Soil Sci. Soc. Am. J.45:966-970.

32. Hummel. N.W. Jr •• and D.V. Waddington. 1984. Sulfur-coated urea for turfgrass fertilization. Soil Sci.Soc. Am. J. 48:191-195.

33. Katy. S.E .• and C.A. Fassbender. 1966.Biodegradibility of urea-formaldehydes and relatedcompounds. J. Agric. Food Chem. 14:336-338.

34. Kaempffe. G.K •• and O.R. Lunt. 1967. Availability ofvarious fractions of urea-formaldehyde. J. Agric.Food Chem. 14:336-338.

35. Lunt. O.R .• and S.B. Clark. 1969. Properties and valueof 1.1 diureido isobutane (IBDU) as a long-lastingnitrogen fertilizer. J. Agric. Food Chem.17:1269-1271.

89

36. Madison, J.H. 1971. Principles of turfgrass culture.Van Nostrand Reinhold Co. New York, N.Y.

37. McClellan, G.H., and R.M. Scheib. 1973.Characterization of sulfur coatings on urea.Sulfur Inst. J. 9(3-4):8-12.

38. McVey, G.R. 1979. Methylene urea - a controlledrelease nitrogen source for turfgrass and woodyornamentals. p. 83-95. In J.R. Street (ed.) Proc.20th Ill. Turfgrass Conf.

39. McVey, G.R. 1980. Methylene urea: differences in ureaformaldehydes noted. Weeds, Trees, and Turf. 19(6): 46-47.

40. Moberg, E.L., D.V. Waddington, and J.M. Duich. 1970.Evaluation of slow-release nitrogen sources onHerion Kentucky bluegrass. Soil Sci. Soc. Am.Proc. 34:335-339.

41. Nommik, H. 1958. On decomposition of calciumcyanamide and dicyandiamide in the soil. ActaAgr. Scand. 8:404-440.

42. Nommik, H. 1959. Calcium cyanamide and dicyandiamideas sources of nitrogen for higher plants. ActaAgr. Scand. 9:435-437.

43. Pesek, J., G. Stanford, and N.L. Case. 1971. Nitrogenproduction and use. p. 217-269. In R.A. Olson,T.J. Army, J.J. Hanway, and V.J. Kilmer (ed.)Fertilizer technology and use. Soil Sci. Soc. Am.,Madison, Wis.

44. Prasad, M. 1976. The release of nitrogen fromsulfur-coated urea as affected by soil moisture,coating weight, and method of placement. SoilSci. Soc. Am. J. 40:134-136.

45. Prasad, R., G.B. Raja1e, and B.A. Lakhdive. 1971.Nitrification retarders and slow-release nitrogenfertilizers. Advan. Agron. 23:337-383.

46. Rathjens, R.G. 1983. Burn characterisics ofurea-formaldehyde reaction products. Am. LawnApplicator. 4(5):4-6.

90

47. Reddy, G.R. 1964. Effect of mixing varyingquantities of dicyandiamide with ammoniumfertilizers on nitrification of ammonia in soils.Can. J. Soil Sci. 44:254-259.

48. Reddy, G.R. 1964. Effect of varying quantities ofdicyandiamide on the utilization of nitrogen byseveral crops from sodium nitrate and ammoniumsulphate. J. Agric. Sci. 62:35-38.

49. Reddy, G.R., and N.P. Datta. 1965. Use ofdicyandiamide in nitrogen fertilizers. J.Indian Soc. Soil Sci. 13:135-139.

50. Riemenschneider, W. 1976. Cyanogen or oxamide fromHCN in one step. Chem. Tech. 6:658-661.

51. Rindt, D.W., G.M. Blouin, and J.G. Getsinger. 1968.Sulfur coatings on nitrogen fertilizer toreduce dissolution rate. J. Agric. Food Chem.16:773-778.

52. Schmidt, R.E. 1975. Response of bentgrass toselected N, Fe sources. Golf Superintendent.43:(5)24-26.

53. Shirley, A.R. Jr., and R.S. Meline. 1975. Sulfur-coated urea from a 1-ton-per-hour pilot plant.p. 33-54. In J.R. West (ed.) New Uses of Sulfur.Advan. in Chem. Series no. 40, Am. Chem. Soc.,Washington, D.C.

54. Skogley, C.R. 1983. Turfgrass response to fallapplied, slow-release, nitrogen fertilizers.U.R.I. Cooperative Extension Turfgrass ResearchReview.

55. Snyder, G.R., E.O. Burt, and J.M. Davidson. 1981.Nitrogen leaching in bermudagrass turf: effectsof nitrogen sources and rates. p. 313-323. InR.W. Sheard (ed.) Proc. 4th Int. Turfgrass Res.Conf., Guelph, Canada.

56. Steel, R.G.D., and J.R. Torrie. 1960. Principlesand procedures of statistics. McGraw-Hill Co.New York.

57. Street, J.R. 1981. Nitrogen fertilizers. Am. LawnApplicator. 11(6):6-14.

91

58. Tester, C.F., L.J. Sikora, J.M. Taylor, and J.F.Parr. 1979. Decomposition of sewage sludgecompost in soil: III. Carbon, nitrogen, andphosphorus transformations in different sizedfractions. J. Environ. Qual. 8:79-82.

59. Tisdale, S.L., and W.L. Nelson. 1975. Soilfertility and fertilizers. 3rd ed.Macmillan Publishing Co., Inc. New York, N.Y.

60. Torello, W.A., D.J. Wehner, and A.J. Turgeon.1983. Ammonia volatilization fromfertilized turfgrass stands. Agron. J.75:454-457.

61. Van Gordon, T.D., and S.G. Gilbert. 1976.Bloconversion of Barex 210 (an acrylonitrilecopolymer) nitrogen for plant utilization.J. Agrlc. Food Chem. 24:823-824.

62. Vilsmeier, K. 1980. Effect of temperature on thebreakdown of dicyandiamide in the soil.Z. Pflanzenernaehr. Bodendk. 143:113-118.

63. Volk, G.M., and G.C. Horn. 1975. Response curvesof various turfgrasses to application ofseveral controlled-release nitrogen sources.Agron. J. 67:201-204.

64. Waddington, D.V. 1976. Nitrogen sources for thelawn care industry. p. 50-53. In D.P. Hartin (ed.)Ohio Turfgrass Conf. Proc.

65. Waddington, n.v., and J.H. Dutch. ]976.Evaluation of slow release nitrogen fertilizerson Pennpar creeping bentgrass. Agron. J.68:812-815.

66. Waddington, n.v., J.M. Duich, and T.R. Turner.1977. Turfgrass fertilization withisobutylidene diurea and ureaform. p. 319-334.In R.L. Goulding (ed.) Proc. 1977 ControlledRelease Pesticide Symposium.

67. Waddington, n.v., E.L. Moberg, J.M. nuich, andT.L. Watschke. 1976. Long-term evaluation ofslow release nitrogen sources on turfgras8.Soil Sci. Soc. Am. J. 40:593-597.

68. Waddington. D.V .• and T.R. Turner. 1980.Evaluation of sulfur-coated urea fertilizers onMerion Kentucky bluegrass. Soil Sci. Soc. Am.J. 44:413-417.

69. Waller. R.A .• and D.B. Duncan. 1969. A Bayes rulefor the symmetric multiple comparisons problem.J. Am. Stat. Assoc. 64:1484-1503.

70. Waller. R.A .• and D.B. Duncan. 1972. Corrigenda:A Bayes rule for the symmetric multiplecomparisons problem. J. Am. Stat. Assoc.67:253-255.

71. Wilkinson. J.F. 1977. Effect of IBDU and UF rate.date. and frequency of application on MerionKentucky bluegrass. Agron. J. 69:657-661.

72. Willson. G.B .• J.F. Parr. E. Epstein. P.B. Marsh.R.L. Chaney. D. Colacicco. W.D. Burge. L.T.Sikora. C.F. Tester. and S.B. Hornick. 1980.Manual for composting sewage sludge by theBeltsville aerated-pile method.EPA-600/8-80-022. Natl. Tech. Inform. Serv .•Springfield. Va. 65p.

73. Woolhouse. A.R. 1981. Nitrogenous fertilizers forsports turf. p. 303-312. In R.W. Sheard (ed.)Proc. 4th Int. Turfgrass Res. Conf .• Guelph.Canada.

74. Worthy. W. 1980. TVA shows off new fertilizertechnology. Chem. Eng. News. 58(43):32-33.

75. Yee, J.Y .• and K.S. Love. 1946. Nitrification ofurea formaldehyde reaction products. Soil Sci.Soc. Am. Proc. 11:389-392.

92

APPENDIX: COLOR, YIELD, N CONTENT, AND N RECOVERY DATA

Table 8. Effect of nitrogen source on color ratings of MerionKentucky bluegrass.

94

Treat-ment

No. Nitrogen Source 7/7/82

Color RatingsDate7/14 7/20

1. FLUF 4.5 abc 4.2 bed 4.8 ab2. FLUF PLUS 4.7 ab 4.7 ab 4.8 ab3. nJF 3.8 cd 3.8 de 4.2 cde4. FAN 4.3 abc 4.8 a 4.8 ab5. Formolene 4.8 a 4.7 ab 5.0 a6. Urea 4.7 ab 4.8 a 5.0 a7. Ammonium Nitrate 4.2 abc 4.8 a 4.8 ab8. Methylene Urea 3.8 cd 3.8 de 3.8 ef9. Ureaform Powder «0.25 mm) 2.3 fg 2.8 fg 3.2 g

10. IBDU (0.7-2.5 mm) 1.7 gh 1.8 ij 1.8 i11. Oxamide (1-3 mm) 1.7 gh 1.7 j 1.8i12. Oxamide «0.25 mm) 2.7 ef 2.8 fg 2.7 h13. 2/3 Oxamide « O.25) » 1/3 Urea 4.3 abc 3.8 de 4.3 cd14. 1/3 Oxamide « 0.25) ; 2/3 Urea 4.7 ab 4.7 ab 5.0 a15. CIL seu 3.2 de 3.8 de 4.3 cd16. AIM SCU 2.3 fg 3.7 de 4.3 cd17. TVA SCU-25 (c) 1.8 gh 3.3 ef 4.2 cde18. TVA SCU-lS (f) 1.5h 2.3 ghi 4.0 def19. TVASCU-6 (f) I.Sh 2.5 gh 3.7 f20. 30-2-9 3.8 cd 4.5 abc 4.5 bc21. 18-5-9 4.2 abc 4.0 cd 4.5 bc22. 1/2 ClL SCU; 1/2 Urea 4.0 be 4.7 ab 5.0 a23. Milorgani te 1.5h 2.0 hij 2.8 gh24. Sludge Compost 2.0 fgh 1.7 j 1.7 i25. 1/5 Sludge Compost; 4/5 Urea 4.2 abc 4.2 bed 4.5 be

Table 8 • (Continued).95

Color RatingsDate

Treat-mentNo. 7/26 8/1 8/8 8/19 8/26 9/1

l. 4.3 abe 3.3 abe 3.2 ede 2.7 fgh 2.8 ef2. 4.5 abe 3.7 ab 4.0 ab 3.3 ede 3.3 bed3. 3.5 efg 2.7 ede 2.7 ef 2.2 h 2.2 g4. 4.7 ab 4.0 a 3.8 ab 3.2 e-f 3.2 ede5. 4.8 a 4.0 a 3.8 ab 3.3 ede 3.5 be6. 4.7 ab 3.8 ab 4.2 a 3.7 abe 3.5 be7. 4.7 ab 3.8 ab 3.7 abe 3.7 abe 3.2 ede8. 4.0 ede 3.2 bed 3.0 de 2.5 gh 2.8 ef9. 2.5 h 2.2 ef 2.2 f 2.2 h 2.2 g

10. 1.7 i 2.2 ef 2.2 f 2.8 efg 3.0 def11. 1.8 i 2.5 de 2.7 ef 2.7 fgh 3.0 def12. 3.3 fg 3.3 abe 3.5 bed 3.2 e-f 3.2 ede13. 4.3 abe 3.3 abe 3.5 bed 3.0 d-g 3.2 ede14. 4.8 a 3.5 ab 3.7 abe 3.5 bed 3.3 bed15. 4.5 abe 4.0 a 4.2 a 4.2 a 3.7 ab16. 4.5 abe 3.8 ab 4.0 ab 4.0 ab 4.0 a17. 4.0 ede 3.3 abe 3.7 abe 3.2 e-f 3.0 def18. 4.2 bed 3.5 ab 3.8 ab 3.7 abe 3.7 ab19. 3.7 def 3.3 abe 3.7 abe 3.5 bed 3.3 bed20. 4.5 abe 3.7 ab 3.7 abe 3.5 bed 3.3 bed2l. 4.5 abe 3.2 bed 3.2 ede 2.8 efg 2.7 f22. 4.8 a 3.8 ab 4.2 a 4.0 ab 3.7 ab23. 3.0 gh 3.2 bed 3.2 ede 2.7 fgh 2.7 f24. 1.5 i 1.5 f 1.5 g 1.5 1 1.3h25. 4.3 abe 3.5 ab 3.2 cde 2.7 fgh 2.7 f


Color RatingsDate

Treat-ment

No. 9/8 9/16 9/23 9/30 10/7 10/14

1. 2.7 def 4.3 be 4.3 a-d 3.8 cd 3.3 e-f 3.5 d-g2. 2.8 ede 4.5 abe 4.7 abe 3.8 cd 4.0 a-d 3.7 e-g3. 2.2 f 3.2 ef 3.7 def 2.7 efg 2.7 efg 2.7 hi4. 2.8 ede 4.5 abe 4.8 ab 4.7 ab 4.3 ab 4.2 a-d5. 3.2 bed 5.0 a 4.8 ab 4.7 ab 4.7 a 4.3 abe6. 3.0 b-e 4.7 ab 4.7 abe 4.3 abe 4.2 abe 4.2 a-d7. 3.0 b-e 4.5 abe 5.0 a 4.8 a 4.7 a 4.3 abe8. 2.5 ef 3.7 de 4.0 ede 3.3 de 3.2 def 3.3 e-h9. 2.2 f 2.7 fg 3.0 fg 2.0 g 2.2 gh 2.2 ij

10. 3.0 b-e 2.8 fg 3.2 fg 3.0 ef 3.2 def 3.2 fgh11. 2.8 ede 2.3 gh 2.8 g 3.0 ef 3.3 e-f 3.2 fgh12. 3.0 b-e 3.0 f 3.7 def 4.2 abe 4.2 abe 3.8 b-f13. 3.0 b-e 4.2 bed 4.2 b-e 4.0 bed 3.8 a-d 4.0 a-e14. 3.0 b-e 4.7 ab 4.8 ab 4.3 abe 4.5 a 4.2 a-d15. 3.5 ab 4.3 be 4.5 abe 4.2 abe 4.2 abe 4.5 ab16. 4.0 a 3.7 de 4.3 a-d 4.2 abe 4.2 abe 4.5 ab17. 3.0 b-e 2.8 fg 3.5 efg 3.3 de 3.3 e-f 3.5 d-g18. 3.5 ab 2.8 fg 3.2 fg 2.5 fg 2.8 efg 3.0 gh19. 3.3 be 3.0 f 3.5 efg 2.7 efg 3.5 b-e 3.7 e-g20. 3.0 b-e 4.5 abe 4.5 abe 4.5 abe 4.3 ab 4.2 a-d21. 2.2 f 4.0 cd 4.0 ede 4.2 abe 4.3 ab 3.8 b-f22. 3.3 be 4.7 ab 4.8 ab 4.7 ab 4.7 a 4.7 a23. 2.2 f 2.0 h 2.8 g 2.3 fg 2.5 fg 3.0 gh24. 1.0 g 1.2 i 1.0h LOh 1.5h 1.7 j

25. 2.5 ef 4.7 ab 4.8 ab 4.3 abe 4.3 ab 3.7 e-g

Table 8. (Continued).97

Treat-ment

No. 10/21 10/28

Color RatingsDate

4/28/83 S/S S/12 S/19

1. 3.3 e-e 2.S e-h 2.0 efg 2.S efg 2.S efg 2.S def2. 3.7 a-e 2.7 b-g 2.0 efg 2.S efg 2.3 fgh 2.8 ede3. 2.2 fg l.8 ghi 2.2 ef 2.3 fg 2.2 gh 2.S def4. 3.8 a-d 3.7 a 2.0 efg 2.S efg 2.3 fgh 2.3 efS. 4.0 abe 3.3 abe 2.7 e-f 3.0 d-g 2.7 efg 2.7 e-f6. 4.0 abe 3.3 abe 2.2 ef 2.7 efg 2.2 gh 2.S def7. 3.8 a-d 3.3 abe 2.0 efg 2.8 d-g 2.2 gh 2.7 e-f8. 3.0 def 2.3 d-h 2.2 ef 3.0 d-g 2.-7 efg 2.8 ede9. 2.0 g 1.7 hi L8 fg 2.2 g 2.3 fgh 2.5 def

10. 3.0 def 2.8 a-f 4.5 a 4.8 a 4.8 a 4.5 aII. 3.0 def 3.0 a-e 3.7 ab 4.2 ab 4.3 ab 3.8 ab12. 3.7 a-e 2.7 b-g 2.S def 3.2 e-f 2.8 efg 3.0 ede13. 3.5 b-e 2.8 a-f 2.5 def 2.8 d-g 2.8 efg 2.S def14. 3.7 a-e 3.0 a-e 2.3 def 2.8 d-g 2.7 efg 3.0 ede15. 4.3 ab 3.3 abe 3.2 bed 3.7 bed 3.3 ede 3.3 be16. 4.5 a 3.7 a 3.5 be 4.0 abe 3.8 bed 3.8 ab17. 3.5 b-e 2.8 a-f 2.5 def 3.5 bed 3.S ede 3.5 bed18. 2.8 efg 2.0 f-i 2.8 b-e 3.3 b-e 3.0 d-g 3.2 bed19. 3.5 b-e 3.2 a-d 3.2 bed 4.2 ab 4.2 abe 3.8 ab20. 3.8 a-d 3.2 a-d 2.5 def 3.0 d-g 2.8 efg 3.0 ede

2l. 3.5 b-e 3.7 a 2.2 ef 2.8 d-g 2.3 fgh 2.5 def

22. 4.3 ab 3.5 ab 2.7 e-f 3.3 b-e 3.3 ede 3.0 ede

23. 2.8 efg 2.7 b-g 2.3 def 2.8 d-g 2.8 efg 2.8 ede

24. l.Oh I.2i 1.2 g I.2h 1.5h 2.0 f

25. 3.7 a-e 3.3 abe 2.2 ef 3.0 d-g 2.7 efg 2.3 ef


Treat-ment

No. 5/26 6/2

Color RatingsDate

6/9 6/16 6/23 6/30

1. 2.5 cd 1.8 cde 2.2 cde 4.2 a 4.0 c-f 3.3 gh2. 2.2 cd 2.2 bed 1.8 de3. 2.3 cd 2.2 bed 2.2 ede4. 2.0 cd 1.8 cde 1.5e 4.0 ab 3.8 d-g 3.5 fg5. 2.3 cd 1.8 cde 2.0 de 4.3 a 4.3 a-d 4.0 def6. 2.5 cd 2.0 b-e 2.0 de 4.5 a 4.8 a 5.0 a7. 2.7 bed 1.7 de 1.8 de 3.8 abe 4.8 a 4.8 ab8. 2.7 bed 2.2 bed 2.0 de 3.7 abe 3.3 gh 3.5 fg

9. 2.7 bed 2.3 bed 2.7 a-e 3.2 bed 3.0 hi 3.2 ghi10. 3.8 a 3.3 a 3.7 ab 3.0 cde 2.5 i 2.7 i

11. 3.7 ab 3.3 a 3.5 abe 2.7 def 2.5 i 2.8 hi12. 2.3 ed 2.0 b-e 2.3 b-e 3.2 bed 3.7 efg 4.2 ede13. 2.5 cd 1.7 de 2.2 ede 4.2 a 4.2 b-e 4.0 def14. 2.5 ed 2.0. b-e 1.8 de 4.3 a 4.8 a 4.7 ahe15. 3.0 abe 2.7 ahe 2.7 a-e 4.0 ah 4.2 b-e 4.3 bed16. 3.8 a 2.8 ah 3.0 a-d 4.0 ab 4.3 a-d 4.3 bed17. 3.3 ab 2.5 a-d 3.0 a-d 3.0 ede 3.3 gh 3.7 efg18. 2.7 bed 2.5 a-d 2.5 b-e 2.2 efg 3.0 hi 3.7 efg19. 3.8 a 3.3 a 4.0 a 3.2 bed 3.3 gh 3.7 efg20. 2.7 bed 2.2 bed 2.3 b-e 4.0 ab 3.5 fgh 3.2 ghi21. 2.5 cd 2.0 b-e 1.8 de 3.8 abe 4.0 e-f 4.0 def22. 2.7 bed 2.3 bed 2.3 b-e 4.3 a 4.5 abe 4.5 a-d

23. 2.7 bcd 2.5 a-d 2.7 a-e 2.3 d-g 2.5 i 2.7 i24. 1.8d 1.2e 1.7 de 2.5 def 1.0 j 1.3 j

25. 2.3 cd 1.7 de 2.2 ede 4.3 a 4.7 ab 4.2 ede


Treat-ment

No. 7/7 7/14

Color RatingsDate

7/21 7/28 8/4 8/11

1. 3.5 ef 3.5 def 3.3 de 3.3 fgh 2.8 efg 2.8 f-i2.3.4. 3.5 ef 3.3 def 3.2 e 3.0 hi 2.7 fg 2.3 ij5. 3.8 de 3.5 def 3.7 ede 3.5 efg 3.0 ef 2.8 f-i6. 4.7 a 4.5 a 4.5 a 4.2 abe 3.5 ed 3.5 b-e7. 4.3 abe 4.5 a 4.7 a 4.2 abe 3.7 be 3.7 bed8. 3.5 ef 3.3 def 3.2 e 3.0 hi 2.7 fg 2.7 ghi9. 3.0 gh 3.2 ef 3.3 de 3.5 efg 3.0 ef 2.8 f-i

10. 2.8 h 2.5 g 2.5 f 2.8 i 2.8 efg 3.0 e-h11. 3.0 gh 3.0 fg 3.3 de 3.2 ghi 2.8 efg 2.8 f-i12. 4.5 ab 4.2 abe 4.3 ab 4.0 bed 3.7 be 3.8 abe13. 3.8 de 3.7 ede 3.8 bed 3.3 fgh 3.2 de 3.2 d-g14. 4.7 a 4.7 a 4.5 a 4.3 ab 3.8 abe 3.8 abe15. 4.3 abe 4.2 abe 4.3 ab 4.0 bed 4.0 ab 4.0 ab16. 4.2 bed 4.2 abe 4.5 a 4.2 abe 3.5 ed 3.7 bed17. 4.0 ed 4.2 abe 4.5 a 4.2 abe 3.7 be 4.0 ab18. 3.8 de 4.3 ab 4.5 a 4.5 a 4.0 ab 4.3 a19. 3.8 de 4.2 abe 4.5 a 4.5 a 4.2 a 4.3 a20. 3.3 fg 3.0 fg 3.5 de 3.2 ghi 2.7 fg 2.7 ghi21. 4.2 bed 3.8 bed 4.2 abe 3.7 def 2.8 efg 3.2 d-g22. 4.5 ab 4.3 ab 4.5 a 4.0 bed 3.8 abe 3.8 abe23. 3.0 gh 3.0 gh 3.2 e 3.0 hi 2.5 g 2.5 hi

24. 1.7 i 1.3h 1.5 g 1.5 j 1.7h 1.8 j

25. 4.2 bed 4.2 abe 4.2 abe 3.8 ede 3.0 ef 3.3 e-f


Treat-ment

No. 8/19 8/25

Color RatingsDates

9/1 9/8 9/15 9/22

1. 2.2 ef 2.3 ede 2.0 gf 1.8 fg 1.7 def 1.2 ijk2.3.4. 2.0 fg 1.7 gh 1.8g 1.5 gh 1.3 fg 1.0 jkl5. 2.3 def 2.3 ede 2.0 fg 2.0 ef 1.5 ef 1.5 ghi6. 2.8 bed 2.5 cd 2.2 efg 2.2 def 1.8 e-f 1.7 fgh7. 3.0 be 2.5 cd 2.5 ede 2.3 ede 2.3 abe 1.8 efg8. 2.3 def 2.2 def 2.3 def 1.8 fg 1.8 e-f 1.3 hij9. 2.8 bed 2.3 ede 2.5 ede 2.5 cd 2.2 a-d 1.7 fgh

10. 2.7 ede 2.5 cd 2.7 bed 3.0 ab 2.7 a 3.0 a11. 2.8 bed 2.3 ede 2.5 ede 2.5 cd 2.3 abe 2.3 cd12. 2.8 bed 2.7 be 3.0 ab 2.5 cd 2.0 b-e 1.8 efg13. 2.5 e-f 2.2 def 2.3 def 2.2 def 2.0 b-e 1.5 ghi14. 2.8 bed 2.7 be 2.7 bed 2.3 ede 2.2 a-d 2.2 ede15. 3.3 ab 2.7 be 2.8 abe 2.3 ede 2.0 b-e 2.2 ede16. 2.8 bed 2.3 ede 2.3 def 2.3 ede 2.2 a-d 2.0 def17. 3.3 ab 2.7 be 2.8 sbe 3.0 ab 2.5 ab 2.5 be18. 3.7 a 3.0 ab 3.2 s 2.7 be 2.7 a 2.3 cd19. 3.8 a 3.2 a 3.2 s 3.2 a 2.7 a 2.8 ab20. 2.3 def 1.8 fgh 2.0 fg 2.0 ef 1.8 e-f 1.7 fgh21. 2.5 e-f 1.8 fgh 2.0 fg 1.8 fg 1.7 def 1.8 efg22. 3.0 be 2.5 cd 2.5 cde 2.0 ef 2.0 b-e 2.2 ede23. 2.3 def 2.0 efg 2.2 efg 2.2 def 1.8 c-f 1.5 ghi24. 1.5 gh 1.5 hi 1.3h 1.2h 0.8 g 0.8 k125. 2.7 cde 2.2 def 2.2 efg 2.3 ede 1.7 def 2.0 def


Treat-ment

No. 9/29 10/6

Color RatingsDate

10/13 10/20 10/27 11/3

1. 2.5 bed 3.8 def 4.0 e-f 3.5 d-g 3.2 bed 2.7 ede2.3.4. 2.2 de 4.2 b-e 4.5 abe 3.8 b-e 3.7 ab 3.2 be5. 2.5 bed 4.0 ede 4.5 abe 4.3 ab 3.a a 3.5 ab6. 3.0 a 4.7 ab 4.a ab 4.3 ab 3.7 ab 3.5 ab7. 2.8 ab 4.8 a 5.0 a 4.5 a 3.8 a 3.8 aa. 2.3 ede 3.2 gh 3.5 f 2.7 ijk 2.7 def 2.5 de9. 2.0 e 2.2 j 2.3 g 2.2 k 2.0 gh 1.a fg

10. 2.7 abe 2.5 ij 2.7 g 2.7 ijk 2.7 def 2.7 ede11. 2.0 e 2.0 j 1.5h 1.5 1 1.5 hi 1.a fg12. 2.0 e 2.3 j 3.7 ef 3.7 e-f 3.a a 3.5 ab13. 2.3 ede 3.0 hi 3.a def 3.0 f-1 2.7 def 2.8 ede14. 2.8 ab 4.2 b-e 4.3 bed 3.a b-e 3.3 abe 3.0 bed15. 2.5 bed 4.2 b-e 4.2 ede 3.a b-e 3.3 abe 2.8 ede16. 2.3 ede 3.3 fgh 3.8 def 3.3 e-f 3.0 ede 2.7 ede17. 2.3 ede 3.3 fgh 3.7 ef 2.a hij 3.0 ede 2.7 ede18. 2.0 e 2.3 j 2.8 g 2.7 ijk 2.8 e-f 3.0 bed19. 2.2 de 2.5 ij 2.7 g 2.5 jk 2.5 efg 2.3 ef20. 2.3 ede 3.3 fgh 3.7 ef 3.2 f-i 3.2 bed 2.5 de21. 2.3 ede 3.7 efg 3.8 def 3.3 e-h 2.7 def 2.7 ede22. 2.8 ab 4.5 abe 4.5 abe 4.2 abe 3.0 ede 3.0 bed23. 1.S f 2.0 j 2.5 g 2.7 ijk 2.3 fg 2.7 ede24. 1.0 g 1.3k 1.2 hi 1.2 1 1.2 ij 1.3g25. 2.8 ab 4.3 a-d 4.2 ede 4.0 a-d 3.3 abe 3.0 bed

Table 9 • Effect of nitrogen source on fresh-weight yields of MerionKentucky bluegrass.

102

Treat- Fresh-weight Yieldment Clipping Date

No. Nitrogen Source 7/8/82 7/15 7/22

2g/2m

l. FLUF 52 b-g 100 b-e 58 d-g2. FLUF PLUS 90 a 158 a 104 a3. TUF 48 c-g 83 e-h 51 e-h4. FAN 55 a-g 135 ab 93 abc5. Formo1ene 66 a-e 128 abc 75 b-f6. Urea 84 abc 127 a-d 101 ab7. Ammonium Nitrate 88 ab 153 a 104 a8. Methylene Urea 46 d-g 91 d-g 45 ghi9. Ureaform Powder «0.25 tmn) 46 d-g 55 g-j 27 hi

10. lBDU (0.7-2.5 tmn) 50 c-g 38 ij 20 i11. Oxamide (1-3 mm) 33 d-g 25 j 23 hi12. Oxamide (<:0.25 mm) 24 g 48 hij 26 hi13. 2/3 Oxamide «0.25); 1/3 Urea 46 d-g 81 e-h 58 d-g14. 1/3 Oxamide (<:0.25); 2/3 Urea 56 a-g no b-e 78 a-e15. ClL SCU 51 c-g 63 f-i 58 d-g16. AIM SCU 32 efg 42 ij 50 fgh17. TVA SCU-25 (c) 26 fg 36 ij 43 ghi18. TVA SCU-IS (f) 33 d-g 41 Ij 51 e-h19. TVA scu- 6 (f) 33 d-g 31 ij 42 ghi20. 30-2-9 54 b-g 95 c-f 57 d-g2l. 18-5-9 61 a-f 90 efg 79 a-d22. 1/2 ClL SCU; 1/2 Urea 67 a-e 99 c-f 69 c-g23. Milorganite 36 d-g 32 ij 27 hi24. Sludge Compost 33 d-g 24 j 21 i25. 1/5 Sludge Compost; 4/5 Urea 68 a-d 110 b-e 77 a-f



No. 7/29 8/5 8/12 8/19 8/26 9/2

2g/2m

1. 49 d-h 84 e-g 29 def 23 e-i 23 d-j 20 a-f2. 76 be III ab 42 abe 48 a 41 a 25 ab3. 36 g-k 40 jU 24 d-h 43 ab 16 h-k 12 e-h4. 80 be 103 abe 46 a 15 hij 30 a-e 22 a-d5. 75 bed 107 abe 41 abe 37 be 29 a-f 25 ab6. 83 abe 127 a 48 a 41 ab 39 ab 23 abe7. 108 a 85 b-f 45 ab 36 be 36 abe 19 a-f8. 37 g-k 61 f-k 25 d-g 20 f-i 19 _e-j 14 d-h9. 22 ijk 42 i-I 12 ij 16 hij 15 ijk 12 fgh

10. 17 jk 34 klm 17 g-j 18 ghi 18 f-k 14 d-h11. 19 jk 281m 13 hij 14 ij 11 jk 10 gh12. 31 h-k 64 f-j 22 e-i 21 f-i 19 e-j 16 b-g13. 47 e-i 101 a-d 33 ede 28 e-g 26 e-i 22 a-d14. 87 ab 93 b-e 35 bed 35 bed 28 b-h 21 a-e15. 47 e-i 66 f-j 33 ede 33 b-e 26 e-i 22 a-d16. 43 e-j 45 i-I 21 ghi 22 e-i 23 d-j 15 e-g17. 34 g-k 62 f-j 20 ghi 20 f-i 16 g-k 14 d-h18. 59 e-g 57 g-k 25 d-g 25 d-h 23 d-j 20 a-f19. 38 f-k 54 h-1 21 ghi 23 e-i 22 d-j 16 e-g20. 57 e-h 75 d-h 27 d-g 28 e-g 28 b-g 22 a-d21. 56 e-h 63 f-j 28 d-g 24 e-i 20 e-j 15 e-g22. 66 b-e 68 e-i 33 ede 43 ab 32 a-d 25 a23. 30 h-k 44 i-I 22 e-i 20 f-i 18 e-j 14 d-h24. 15 k 13m 7 j 6 j 6 k 6 h25. 65 b-f 73 e-h 27 d-g 30 e-f 26 e-i 18 a-g



No. 9/9 9/16 9/23 9/30 10/7 10/14

2g/2m

I. 11 e-f 34 b-g 44 e-i 37 d-i 50 d-h 37 e-j2. 20 abe 48 abe 69 a-e 52 bed 76 bed 49 b-e3. 8def 21 e-i 23 h-l 22 g-1 34 £-i 22 i-I4. 15 a-e 51 ab 88 ab 85 a 105 a 72a5. 15 a-e 52 ab 85 abe 64 abe 85 ab 55 abe6. 16 a-d 57 a 73 a-d 64 abe 80 abe 54 abe7. 20 a 53 ab 89 a 74 ab 82 ab 60 ab8. 9 def 19 f-i 27 g-1 28 e-k 41e-i 30 f-k9. 7 def 17 f-i 18 i-I 16 i-I 26 hij 19 jkl

10. 15 a-e 22 d-i 19 i-I 18 h-l 36 f-i 31 e-kII. 6 ef 12 hi 12 jkl 15 i-I 27 g-j 20 i-I12. 9 def 18 d-i 29 g-l 37 d-i 51 d-h 39 e-i13. 13 a-e 36 b-f 39 f-j 41 d-h 64 b-e 42 b-h14. 13 a-e 35 b-f 55 d-g 52 bed 70 bed 45 b-f15. 15 a-e 26 d-h 33 f-k 34d-j 55 e-f 43 b-g16. 11 a-e 14 hi 22 h-l 26 f-l 42 e-i 33 d-k17. 7 def 14 hi 9 kl 11 kl 23 ij 18 kl18. 12 a-e 19 f-i 17 i-I 14 jkl 30 f-j 24 h-k19. 11 b-f 15 ghi 16 jkl 16 i-I 32 f-j 25 g-k20. 15 a-d 41 a-d 58 e-f 51 bed 72 bed 49 b-e2l. 10 def 28 d-h 49 d-h 51 b-e 66 b-e 45 b-f22. 20 ab 41 a-e 60 b-f 47 e-f 70 bed 50 bed23. 9 def 16 f-i 16 jkl 18 i-I 32 f-j 21 i-I24. 2 f 4 i 3 1 4 1 6 j 4 125. 13 a-e 31 e-h 52 d-g 42 e-g 53 e-g 38 e-i



No. 10/21 10/28 5/5/83 5/12 5/19 5/262g/2m

1. 13 b-g 5 d-j 59 e-g 30 efg 87 b-e 37 e-h2. 17 a-d 7 a-f 86 abe 41 ede 119 a-d 40 d-g3. 8gb 3 g-j 34 fgh 21 fgh 55 ef 25 h4. 22 a 10 a 88 abe 38 e-f 95 a-e 35 fgh5. 19 abe 7 a-e 87 abe 39 e-f 100 a-e 38 d-h6. 22 a 8 a-d 83 a-d 39 e-f 104 a-e 40 d-g7. 21 a 10 a 78 bed 38 e-f 101 a-e 37 e-h8. 9 fgh 4 f-j 60 e-g 26 efg 80 ede 30 gh9. 8 gh 3 hij 30 gh 19 gh 71 def 33 fgh

10. 11 d-g 4 e-j 114 a 97 a 141 a 90 a11. 9 fgh 4 f-j 53 d-g 37 e-g 112 a-d 50 cde12. 13 b-g 6 b-h 52 d-g 27 efg 87 b-e 33 fgh13. 16 a-f 7 a-g 68 b-e 34 d-g 90 a-e 37 e-h14. 16 a-e 9 ab 70 bed 35 e-g 94 a-e 33 fgh15. 16 a-f 7 a-f 95 ab 61 b 130 abc 52 cd16. 12 d-g 5 d-j 75 bed 50 bed 133 abe 56 e17. 7 gh 4 e-j 45 efg 34 d-g 97 a-e 44 e-f18. 9 e-h 4 e-j 64 b-f 44 b-e 113 a-d 45 e-f19. 9 fgh 4 e-j 74 bed 53 be 139 ab 70 b

20. 20 ab 8 abe 77 bed 44 b-e 114 a-d 46 e-f

21. 17 a-d 7 a-g 68 b-e 38 e-f 104 a-e 34 fgh

22. 17 a-d 7 a-f 78 bed 43 b-e 98 a-e 38 e-h

23. 7 gh 2 ij 34 fgh 21 fgh 74 de 33 fgh

24. 3 h 1 j 7 h 5 h 21 f 11 i

25. 13 c-g 5 c-i 54 d-g 29 efg 72 def 30 gh

Table 9 • (continued).106


No. 6/2 6/9 6/16 6/23 6/30 7/7

2g/2m

l. 59 e-h 36 e-h 31 e-h 42 ef 46 fgh 35 d-h2. 62 c-h 39 e-h3. 51 h 32 h4. 63 e-h 39 e-h 35 a-e 77 ab 73 ab 47 b-f5. 60 d-h 37 e-h 34 a-e 65 bed 66 a-d 45 b-g6. 61 d-h 32 gh 41 a-d 78 ab 77 ab 56 ab7. 71 b-g 40 e-h 40 a-d 81 a 80 a 64 a8._ 59 e-h 34 fgh 29 a-e 33 f-i 39 g-j 33 fgh9. 64 e-h 33 fgh 21 ef 17 jkl 24 jkl 21 hi

10. 108 a 69 a 46 a 25 g-k 28 ijk 34 d-h11. 78 bed 45 b-e 35 a-e 18 i-I 24 kl 32 gh12. 61 d-h 38 e-h 26 e-f 35 fgh 56 e-f 53 abe13. 56 fgh 36 e-h 30 a-e 38 efg 49 e-h 45 b-g14. 56 fgh 33 gh 41 a-d 67 abe 67 abe 55 ab15. 75 b-e 41 e-g 43"abe 38 efg 56 e-f 47 b-f16. 80 be 45 bed 41 a-d 40 efg 52 d-h 40 e-g17. 72 b-g 39 e-h 37 a-e 26 h-k 40 ghi 36 e-h18. 62 e-h 38 e-h 32 a-e 22 h-k 40 ghi 43 b-g19. 87 b 53 b 41 a-d 29 f-j 47 fgh 48 bed20. 73 b-f 46 be 45 ab 52 de 53 e-g 44 b-g21. 62 e-h 39 c-h 47 a 61 cd 63 b-e 47 b-e22. 68 e-h 36 d-h 44 abc 59 cd 73 ab 48 bed23. 68 c-h 43 e-f 25 def 15 jkl 31 ijk 31 gh24. 27 i 21 i 9 f 4 1 7 m 9 ij25. 54 gh 37 e-h 40 a-d 77 ab 72 ab 64 a



No. 7/14 7/21 7/28 8/4 8/11 8/18

2g/2m

1. 16 g-j 9 d-g 11 e-h 17 d-g 17 e-h 8 e-f2.3.4. 22 b-h 9 e-g 14 e-g 14 f-i 16 e-h 6 e-h5. 19 e-i 10 b-f 15 e-g 20 e-g 19 e-h 7 def6. 24 b-e 15 ab 15 b-e 25 a-f 20 e-h 10 ede7. 32 a 16 ab 20 a 30 abe 22 b-g 11 a-d8. 15 hij 7 e-h 8 hi 16 e-h 15 f-i 7 d-g9. 11 jk 6 fgh 7 hij 14 f-i 13 hi 8 e-f

10. 16 f-j 9 d-g 11 e-h 22 a-g 17 d-h 10 bed11. 14 ij 8 e-h 10 fgh 18 b-g 17 e-h 7 def12. 29 ab 13 a-e 20 ab 33 a 31 a 14 ab13. 23 b-g 12 a-f 16 a-e 21 e-g 24 a-e 11 abe14. 26 a-d 15 abe 18 abe 28 a-d 27 abe 11 a-d15. 19 e-i 11 b-f 15 a-e 26 a-e 26 a-d 10 e-f16. 15 g-j 9 e-g 11 e-h 24 a-f 18 c-h 7 d-g17. 18 d-j 10 b-f 13 d-h 24 a-f 21 b-g 9 e-f18. 21 e-i 12 a-f 12 d-h 25 a-f 24 a-e 9 c-f19. 26 abe 15 a-d 20 ab 33 a 29 ab 14 a20. 20 e-i 10 b-f 11 e-h 17 d-g 20 c-h 9 e-f21. 18 d-j 13 a-e 11 e-h 19 b-g 16 e-h 7 def

22. 24 b-f 12 a-f 15 b-f 32 ab 26 abe 10 bed

23. 14 ij 6 fgh 8 hi 12 ghi 12 hij 6 fgh

24. 4 k 2 h 3 ij 4 i 3 k 3 h

25. 26 abe 17a 17 a-d 28 a-d 24 a-f 9 e-f

Table 9. (Continued).

108


No. 8/25 9/1 9/8 9/15 9/22 9/29

2g/2m

l. 14 b-h 8 b-f 5 f-i 7 d-j 10 e-g 17 a-d2.3.4. 12 d-h 8 b-e 4 f-j 5 g-j 8 e-h 15 bed5. 13 c-h 8 b-e 5 d-h 6 e-j 8 e-h 12 e-f6. 16 a-e 9 bed B a-e 7 d-j 10 e-g 21 ab7. 16 a-e 10 bed 6 e-g 9 e-h 11 e-f 19 abe8. 10 £-i 8 b-f 4 f-i . 6 e-j 9 d-g 12 def9. 9 hi 4 e-f 4 f-j 7 d-j 6 f-j 8 f-i

10. 15 b-g 9 bed lOa 16 ab 18 ab 14 b-f11. 14 b-h 8 b-f 5 d-h 8 e-h 9 d-g 7 f-i12. 21 a 15 a 9 ab 17 a 19 a 16 bed13. 15 a-f 10 bed 8 abe 12 bed 13 cd 17 a-d14. 18 ab 11 abe 6 e-g 11 b-e 14 abe 20 ab15. 17 a-d 9 bed 7 b-f 11 e-f 11 e-f 15 b-e16. 11 e-h 6 d-g 4 f-i 5 g-j 7 e-i 7 f-i17. 15 a-f B b-e 5 e-i 8 e-h 11 d-g 9 e-h18. 18 abe 9 bed 6 e-g 10 e-g 13 cd 8 f-i19. 20 a 11 ab 8 a-d 13 abe 14 bed 10 d-g20. 12 d-h B b-e 6 e-g 8 d-h 10 e-g 15 b-e2l. 12 d-h 9 bed 5 e-i 6 f-j 8 e-h 14 b-f22. 16 a-e 11 abe 6 e-g 9 e-g 12 ede 17 a-d23. 9 ghi 7 e-g 4 g-j 6 f-j 6 g-j 5 ghi24. 3 j 3 gh 2 ij 2 ij 3 ij 3 hi25. 18 abe 11 abe 8 a-d 10 e-g 11 ede 23 a

Table 9 • (Continued).


No. 10/7 10/13 10/20 10/27

2g/2m

l. 39 b-e 72 e-g 25 ede 14 d-g2.3.4. 48 ab 89 a-d 35 ab 18 bed5. 40 b-e 82 a-e 30 bed 17 ede6. 46 b 95 abe 28 b-e 21 ab7. 58 a 108 a 37 a 22 a8. 26 f-i 47 ghi 17 fgh 9 ijk9. 13 jk1 23 ij 8 jk 5 k1

10. 19 ijk 43 hi 13 hij 9 ijk11. 12 jk1 21 ij 6 jk 5 k112. 27 f-i 61 e-h 31 abe 21 ab13. 29 e-i 48 ghi 21 efg 13 e-h14. 44 be 83 a-e 25 ede 17 ede15. 31 d-g 61 e-h 23 def 12 f-i16. 20 g-k 54 fgh 15 ghi 10 hij17. 22 f-j 38 hi 15 fgh 10 hij18. 20 h-k 41 hi 14 g-j 9 ijk19. 20 h-k 45 hi 12 hij 8 jk20. 34 e-f 65 d-h 21 efg 12 g-j2l. 35 e-f 62 e-h 18 fgh 10 hij22. 43 bed 80 b-f 25 ede 16 e-f23. 11 k1 25 ij 11 hij 5 k124. 7 1 10 j 4 k 2 1m25. 59 a 105 ab 31 abe 19 abc

109

Table 10. Effect of nitrogen source on dry-weight yields of MerionKentucky bluegrass.

no

Treat-ment

Dry Weight1982

No. Nitrogen Source 7/8-9/9

9/16-10/28

2g/2m

1. FLUF2. nUF PLUS3. TUF

4. FAN

5. Formo1ene6. Urea7. Ammonium Nitrate8. Methylene Urea9. Ureaform Powder «0.25 mm)

10. lHOU (0.7-2.5 mm)11. Oxamide (1-3 mm)12. Oxamide «0.25 mm)13. 2/3 Oxamide (<;0.25);1/3 Urea14. 1/3 Oxamide «0.25); 2/3 Urea15. CIL SCU16. AIM SCU17. TVA SCU-25 (c)18. TVA SCU-1S (f)19. TVA SCU- 6 (f)20. 30-2-921. 18-5-9

22. 1/2 CIL SCU; 1/2 Urea23. Mi10rganite24. Sludge Compost25. 1/5 Sludge Compost; 4/5 Urea

133200102174166197194no

8071

5987

143162121

9981

11291

136

131153

76

42

145

56

8233

104

9391

100432936

26

49

6572

56

39

223129756676

28

8

59


Treat- Dry Weightment 1983

No. 515- 6/16- 9/22-6/9 9/15 10/27

2g/2m

1. 84 82 442. 1003. 644. 99 103 525. 104 102 486. 102 120 567. 101 134 628. 80 70 349. 68 52 20

10. 180 84 3111. 102 67 1712. 82 113 4613. 116 97 3714. 86 122 5515. 118 103 4016. 120 91 3217. 75 77 2918. 98 88 3019. 129 110 3120. 107 97 4421. 96 101 3822. 104 116 4823. 74 58 1824. 23 19 925. 76 126 63

III

Table 11. Effect of nitrogen source on N content of leaf tissuein Merion Kentucky bluegrass.

112

Treat-ment

N Content1982

No. Nitrogen Source 7/8-9/9

%

9/16-10/28

1. FlUF2. FLUF PLUS3. TUF

4. FAN

5. Formo1ene6. Urea7. Ammonium Nitrate8. Methylene Urea9. Ureaf orm Powder « 0.25 mm)

10. lBDU (0.7-2.5 mm)11. Oxamide (1-3 mm)12. Oxamide «0.25 mm)13. 2/3 Oxamide « O.25); 1/3 Urea14.1/3 Oxamide «0.25); 2/3 Urea15. Cll SCU16. AIM SCU17. TVA SCU-25 (c)18. TVA SCU-15 (f)19. TVA SCU- 6 (f)20. 30-2-921. 18-5-922. 1/2 Cll SCU; 1/2 Urea23. Milorganite24. Sludge Compost25. 1/5 Sludge Compost; 4/5 Urea

2.993.202.863.053.173.313.312.972.873.203.013.203.21

3.133.343.243.043.213.153.122.873.263.092.443.00

4.114.503.984.734.764.684.804.013.71

3.934.054.414.434.584.514.503.563.803.984.524.474.583.843.004.30


Treat- N Contentment 1983

No. 5/5- 6/16- 9/226/9 9/15 10/27

%

1. 3.27 3.32 4.642. 3.363. 3.144. 3.33 3.45 5.025. 3.31 3.55 4.846. 3.36 3.81 4.707. 3.26 3.92 5.028. 3.17 3.33 4.129. 3.27 3.14 3.43

10. 3.80 3.29 3.9211. 3.28 3.14 3.2512. 3.26 3.81 4.4713. 3.34 3.58 4.5814. 3.25 3.74 4.4615. 3.43 3.51 4.1816. 3.48 3.35 4.5117. 3.37 3.29 3.9618. 3.45 3.39 3.6419. 3.67 3.43 3.5120. 3.32 3.41 4.5921. 3.26 3.42 4.3422. 3.46 3.58 4.4423. 3.17 3.02 3.6224. 2.89 2.63 3.2125. 3.16 3.51 4.51

113

Table 12. Effect of nitrogen source on total N recovery of MerionKentucky bluegrass.

Treat- Total N Recoveryment 1982

No. Nitrogen Source 7/8- 9/16-9/9 10/28

2g/2m

1. FLUF 4.0 b-f 2.3 d-i2. FLUF PLUS 6.4 a 3.7 a-e3. TUF 2.9 d-g 1.3 g-j4. FAN 5.3 ab 5.0 a5. Formo1ene 5.3 ab 4.5 ab6. Urea 6.5 a 4.3 abc7. Ammonium Nitrate 6.5 a 4.0 a-d8. Methylene Urea 3.3 c-g 1.8 f-j9. Ureaform Powder (oe;: O.25 JIIIl) 2.3 fgh 1.1 ij

10. lBDU (0.7-2.5 mm) 2.3 fgh 1.4 g-j11. Oxamide (1-3 mm) 1.8 gh 1.1 ij12. Oxamide «0.25 JIIIl) 2.8 d-h 2.2 d-i13. 2/3 Oxamide «0.25) ; 1/3 Urea 4.6 bcd 2.9 b-h14. 1/3 Oxamide «0.25); 2/3 Urea 5.1 abc 3.3 a-f15. ClL SCU 4.1 b-f 2.6 c-i16. AIM SCU 3.2 c-g 1.9 e-j11. TVA SCU-25 (c) 2.5 e-h 0.8 ij18. TVA SCU-15 (f) 3.6 b-g 1.2 g-j19. TVA SCU-6 (f) 2.9 d-g 1.1 hij20. 30-2-9 4.3 b-e 3.4 a-f2l. 18-5-9 3.8 b-f 3.0 b-g22. 1/2 ClL SCU; 1/2 Urea 5.0 abc 3.5 a-f23. Milorgani te 2.4 e-h 1.1 ij24. Sludge Compost 1.0h 0.2 j25. 1/5 Sludge Compost; 4/5 Urea 4.4 bcd 2.5 c-i

114


Treat- Total N Recoveryment 1983

No. 5/5- 6/16- 9/22-6/9 9/15 10/27

28/2m

l. 2.7 c-g 2.7 e-i 2.1 b-f2. 3.4 b-g3. 2.0 g4. 3.3 b-g 3.6 b-g 2.6 abc5. 3.4 b-g 3.6 b-g 2.3 b-e6. 3.4 b-g 4.6 ab 2.7 abc7. 3.3 b-g 5.3 a 3.1 a8. 2.5 d-g 2.3 ghi 1.4 f-19. 2.2 fg 1.7 ij 0.7 h-k

10. 6.9 a 2.8 c-1 1.2 g-j11. 3.3 b-g 2.1 hi 0.6 jk12. 2.7 c-g 4.3 a-d 2.1 b-f13. 3.8 b-e 3.5 b-h 1.7 d-g14. 2.8 c-g 4.6 ab 2.5 a-d15. 4.1 bcd 3.6 b-g 1.7 efg16. 4.2 bc 3.1 c-1 1.4 fgh17. 2.6 d-g 2.5 f-1 1.1 g-j18. 3.5 b-g 3.0 d-i 1.1 g-j19. 4.7 b 3.8 b-f 1.1 g-j20. 3.6 b-f 3.3 b-h 2.0 c-f21. 3.2 c-g 3.5 b-h 1.6 efg22. 3.6 b-f 4.2 a-e 2.1 b-f23. 2.4 efg 1.8 ij 0.7 ijk24. 0.7 h 0.5 j 0.3 k25. 2.4 efg 4.5 abc 2.8 ab

115

literature cited - archive.lib.msu.eduarchive.lib.msu.edu/tic/thesdiss/landschoot1984d.pdf ·...

Documents