Journal ID : AMA-09-02-2023-12003
[This article belongs to Volume - 54, Issue - 02]
Total View : 426

Title : Productivity, profitability and soil health assessment of rice-green gram-maize cropping sequence under different sowing dates and nitrogen management in rainfed upland condition of Assam

Abstract :

A field experiment was conducted during 2016–17 and 2017–18 to assess the productivity, profitability and soil health of a rice-based crop sequence under different sowing dates and nitrogen management. The experiment was laid out in a factorial randomized block design with three replication. The treatment consisted of four dates of sowing for rice, green gram, maize, and four N management practices. Early sowing of rice, green gram and maize, combined with applications of 50% nitrogen as inorganic plus vermicompost @ 1.0 t/ha, resulted in a significantly higher grain yield. Performance on the crop sequence as a whole showed that early sowing of the crops produced the highest rice equivalent yield (REY), production efficiency (PE), land utilization efficiency (LUE), nutrient use efficiency (NUE), net return and B C ratio compared to later dates of sowing of the crop in the sequence. Application of 50% N as inorganic along with vermicompost @ 1.0 t/ha recorded significantly higher productivity, profitability and efficiency indices as compared to other treatments. There was maximum improvement in soil health indices with respect to organic carbon, microbial biomass carbon and soil microbial populations when inorganic nitrogen sources were combined with organic sources.

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