Residual Effect of Foliar Application of Nano Fertlizers and Organic Source of Nitrogen on the Productivity and Economics of Zero Tilled Green Pea in Rice-green Pea Cropping Sequence

Abstract

Background: After rice harvest, the majority of farmers in Manipur leave their land fallow without planting anything, despite the fact that it has a great deal of potential for growing a second crop in the rabi season with the remaining moisture and nutrients. One of the most crucial options for Manipur’s farmers is green pea, which not only boosts their revenue but also makes use of the nutrients and residual moisture in the soil. The current fertilizer application system ignores the carryover effect of the manure or fertilizer applied to the previous crop and instead bases its decisions on the nutritional requirements of the specific crop. Applying organic sources of nutrients to the previous crop greatly benefits the following crop. In light of the aforementioned considerations, an experiment was set up to determine whether the foliar application of nano fertlizers and organic source of nitrogen in the previous kharif rice crop had any lasting effects on the productivity of the following green pea crop. Methods: A field experiment was conducted during the kharif and rabi season of 2020-21 and 2021-22 at Hiyanglam Mayai Leikai in the Kakching district of Manipur, in order to research the residual effect of foliar application of nano fertlizers and organic source of nitrogen on the productivity and economics of zero tilled green pea in rice- green pea cropping sequence. A factorial randomized block design (FRBD) with three replications was used to set up the experiment. Result: The pooled data showed that vermicompost @100% RDN had the highest growth and yield characterictics over the vermicompost @ 75% RDN and 50% RDN. The combinations of nano NPK @ 1.5% + 100% RDN through vermicompost resulted in the highest increase growth and yield attributing characters of green pea and lowest was observed in the control + @ 50% RDN treated plot.