Effect of Nutrient Management on Ricebean [Vigna umbellata (Thunb.) Ohwi and Ohashi]- linseed (Linum usitatissimum L.)

Background: Soil fertility depletion is a major constraint on agricultural production, necessitating a balanced application of inorganic and organic nutrients while effective crop residue management post-harvest enhances soil quality and structure, mitigates evaporation and aids carbon fixation. In Nagaland, agriculture faces challenges like nutrient loss from erosion and minimal use of external inputs while sustainable agriculture requires a viable cropping system and effective crop management; technological advancements in agro-techniques, particularly in cropping systems and nutrient management, are crucial for improving productivity in a ricebean-based linseed cropping system. Methods: A field experiment was conducted to focus on green manuring followed by cultivating a legume crop, rice bean and subsequently linseed in 2019-2021, the investigation would carry out to study the growth, yield and quality parameter and the study was laid in randomized block design with three replications and nine treatments with sources of organic manures and inorganic fertilizers. Result: The study revealed substantial influence of growth and yield which included a combination of poultry manure at 0.7 tons ha-1 along with 100% RDF exhibited superior performance in ricebean, a similar trend was also observed in the subsequent crop, which was linseed and also yielded promising results in terms of plant height, nodules, pods plant-1, seeds pods-1 and yield and concluded to achieve higher seed yield, improve seed quality, preserve soil quality.