Soil fertility and crop yield response to reduced tillage under organic management: A review
Author(s): Shilpa Kaushal, Abhijeet Sinha and Ankit Kumar Jyoti
Abstract: Conventional tillage as a indigenous tillage, it doesn’t maintain the soil fertility so to counter act or to maintain the soil fertility usage of conservation tillage is more beneficial than the conventional tillage. In this article our objective will be quantifying adaptation of reduce tillage in organic farming to see the effect on soil fertility, fertilization, biodynamic preparation. Lots of researches have also been done in this field to see whether reduced tillage effect increases Corg present in the soil or not. Analyzation of organic carbon, microbial biomass, dehydrogenase activity (DHA) has been done under the implementation of reduced tillage in organic farming. In a research in 2002, scientist observed that Corg increased by 7.4% in 0-10 cm soil layer in reduced tillage between 2002-2005, but remain constant with conventional tillage. Similarly Cmicrobial was 28% higher and DHA (dehydrogenase activity) was 27% higher in reduced tillage then conventional tillage. In the sense of crop yield wheat decreases by 14% under reduced tillage but sunflower yield higher in reduced tillage.