To start DOUBLE CLICK on the icon of MZA

Instructions on how to use MZA

How to use MZAImportant note: to Start it, click on the gray area not the

colored one!

Open the EXCEL fileIMPORTANT NOTE: Make sure the REGIONAL settings of your PC are in English and not in GREEK (see the next 2

slides)

Save it as CSV (Comma Separated Value ) file.

The file to be used:Note the min & max values

Select the LOWEST values in each Index (graph)

The arrows show the LOWEST values for each Index,indicating the optimum number of MZs for this property

Conclusions and recommendations

• For the 264 sample points (one at each olive tree), the MZA analysis results from the soil’s VWC (Volumetric Water Content) indicate that the optimum number of Management Zones (MZs) are 5.

• Therefore, if we use SURFER to create the map, we must use 5 zones, using the LEGENG range.

Always, check for the MIN & MAX values (see the original datafile)

For the ECa variable, the optimum number of MZs appears to be 4 or 5.

The FPI index is stronger in case of different MZs are shown in each graph

See the Min & Max fruit load and check it.

For the Fruit Yield, the optimum number of MZs appears to be 4 or 5

Homework:Use any of the attached files to analyze for optimum

number of MZs at each field

..\..\..\ELIA 2013\soil sampling 13-11-2013 olive grove.xls