biopesticides for organic) and irrigation water. Thereby, both the field experiments are designed to compare four treatments: Conventional High Input (Conv-High), Organic High Input (Org-High), Conventional Low Input (Conv-Low) and Organic Low Input (Org-Low).

Project achievements and findings till date

The first six-years results of the long-term study show the potential of organic farming to improve the soil fertility and economic profitability compared to the conventional approach (see diagrams below).



Here are the examined factors in detail:

Productivity and profitability

  • In high-input systems, yields of organic are equal to those in the conventional approach. The yields of grain maize and baby corn are similar at both sites in all years except in year one at Thika.