3.3 Effect of use of organics on crop yield and SOC
Organics alone can maintain the soil health in a better manner as when compared to inorganic alone and integrated inorganic and organics but the yield was found comparatively lower. Several studies support that organics addition to the soil improves its health as well as ensure food security by managing yield as well as crop quality. Therefore, organics was integrated with inorganic fertilizer termed as INM and was compared with inorganic alone in rice and wheat crops (Sharma et al ., 2019) and the finding suggests that organics addition alongwith inorganic fertilizer improves the rice and wheat yield in most of the condition. The wheat yield was significantly increased in INM treatment over the treatment inorganic alone by 4.5% whereas rice yield was increased by 1.2% (Figure 5). The change in yields was 50 and 130 kg ha-1, respectively in rice and wheat crop in INM treatment over the synthetic fertilizer alone. SOC was with positive effects when INM treatment was applied over the treatment inorganic alone in both rice and wheat crops. The effect of SOC was significantly increased in treatment INM in rice (23.2%) and in wheat (16.2%) in comparison to treatment inorganic alone (Figure 5). This result directs towards that organics addition improve SOC and ultimately enhance soil quality/health. Improvement of soil health sustain better crop yield and ensure food security.