Saturday, September 25, 2010

The final comparison

The two plots were planted 25 days apart, so the source of the irrigation water is not the only difference. For example:

1) the NaCl plot crop grew during cooler weather (ETo 371 vs 467 mm)
2) the NaCl plot required much less irrigation water and also received less rainfall

Here are some of the main observations:
1) Same water quality in terms of Electrical Conductivity (EC) and similar maximum EC (which is not very high).
2) Both plots had lots of nitrate
3) The washing machine water plots had lots more P and higher pH
4) The final yields were similar

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