presentation by sangeetha.n.kumar x std. embassy...
TRANSCRIPT
Presentation bySangeetha.N.KumarX Std.Embassy Public School
Content• Introduction• Farming Types
- Chemical farming- Organic farming
• Chemical Farming- Advantages- Disadvantages
• Organic Farming- Components- Principles- Methods- Advantages- Disadvantages
• Case Study• Comparative Study• Statistical Data• Conclusion
INTRODUCTION
• Agriculture• Soil requirements• Minerals• (N, P, K) • Organic matter
(Humus)
FARMING TYPES
• Mainly two types of Farming :
Chemical Farming
Organic Farming
CHEMICAL FARMING
• Lays emphasis on use of Chemicals
DisadvantagesAdvantages
Pollution
Soil quality
Eutrophication
Ground water pollution
Biomagnification
Nutrient specific
Rapid results
High yields
ORGANIC FARMING
A production system which avoids the use of synthetic fertilizers
Integrated Pest
Management
Integrated Disease
ManagementIntegrated
WeedManagement
Crop Rotation
Organic Biofertilizers
IntegratedFarming
ORGANIC FARMING
COMPONENTS OF ORGANIC FARMING
PRINCIPLES OF ORGANIC FARMING
→Biodiversity→Sustainability→Natural Plant
Nutrition→Natural Pest
Management→ Integrity
METHODS OF ORGANIC FARMING
Organic Pest ControlSoil QualityBiodynamicsVermicultureEarthworm : The Natural BioreactorVermicompost
ORGANIC FARMING
ADVANTAGES DISADVANTAGES
Natural Resources remain intact
Pollution hazards
Use of Organic Wastes
Employment opportunities
Generate Original Eco system
Lower Investments
Not Nutrient Specific
Labour
Timely vigil
CASE STUDY• CASE 1:• Name of plant : Tulsi• Scientific name : Oscimum sanctum• Height : 1-1.5ft.• Plant type : Herb• Leaf type : Variegated, reticulate venation, Dicot
ANALYSIS:A frail tulsi plant was taken as a sample study. It was observed for a
period of 24 days. It was supplied with an Organic preparation in addition to wastes supplied to it.OBSERVATIONS:The plant was observed to recover within the stipulated time.CONTROL:A plant treated with chemicalsINFERENCE:Organic inputs were found to be more effective. The soil treated with Organic preparation was found to be of pH 6.1 while the one withchemicals was tested for 4.5
CASE STUDY
• CASE 2:• Name of plant : Toor• Scientific name : Caganus cagan• Height : 3 ft.• Plant type : Annual• Leaf type : An oval leaf blade, reticulate,
Dicot, LegumeANALYSIS:A toor plant was taken as a sample study. It was observed for a period of 6 months. The plant was supplied with an Organic preparation in addition to Organic wastes supplied to it.OBSERVATIONS:The plant was a success as a perennial crop by supplying three yields. The grains were found to be sweet , large in size. It also recorded an extra growth of 5ft.CONTROL:A plant supplied with chemicals.INFERENCE:Organic inputs were found to be more productive and economical. The soil with Organic inputs recorded pH 6.0 whereas that treated with chemicals recorded a pH of 5.2
COMPARATIVE STUDY
• Organic Farming
ة Discard of chemicalsة Eco friendlyة Nutrient specific, non
hazardousة Does not involve chemicals
so no side effects.ة Economicalة Sustainable
• Chemical Farming
ة Use of chemicalsة Eco unfriendlyة Nutrient specific but
hazardousة The farmer spraying the
chemicals is affected.ة Uneconomicalة Not sustainable
COMPARATIVE STUDY• Organic Farming
Higher Nitrogen fixationHigh microbe activityLess loss of nutritionSUSTAINABLE
• Chemical FarmingNitrogen reducedReduced microbesHigh Nutrition lossUNSUSTAINABLE
.Chemicals are eco unfriendly while organic wastes are easily decomposedة
Sustainable Potentially
Sustainable Unsustainable
Natural System
OrganicFarmingSystem
ChemicalFarmingSystem
STATISTICAL DATA
• COUNTRY
ه Sweden ه Australiaه USAه Uruguayه Germanyه Italy
٭ % OF LAND UNDER ORGANIC CULTIVATION
٭ 19%٭ 11%٭ 00.2%٭ 04%٭ 04%٭ 08%
CONCLUSION• Organic Farming is Nature friendly.• It is soil sustaining.• THUS ORGANIC FARMING
CAN BE CONSIDERED THEMOST SUSTAINABLE FORM OF AGRICULTURE.
PEST
ORGANICFARMING
NATURAL
ENEMIES
PREDATORS &
PARASITES
RESIDUE
INCORPORATION
N FIXATION
CULTURAL
NUTRIENT
SUPPORT ANDAUGMENTNATURALPROCESSES
SUSTAIN-ABILITY
SUPPORT ANDAUGMENTNATURAL
PROCESSES
THANK YOU