Download This PaperSite Specific Nutrient Management
5 Pages Posted: 4 May 2020
Date Written: April 7, 2020
Abstract
Green revolution era has been the golden period for boosting the food grain production specifically in South-Asia, but the practice of irrational crop and nutrient management practices over the years has led to appearance of signs of fatigue in late 1980s with sharp decline in factor productivity, stagnation in crop yields with dwindling and marginal farm incomes; all of which are now posing a serious threat to food security, agricultural sustainability, soil and environmental health and rural agricultural economy in the developing world. The SSNM is need-based feeding of crops with nutrients while recognizing the inherent spatial variability which enhances crop productivity, profitability, NUE and avoids nutrient wastage. For efficient and effective SSNM, use of soil and plant nutrient status sensing devices, remote sensing, GIS, decision support systems, simulation models, and machines for variable application of nutrients play an important role. This paper deals with the SSNM technologies and tools which are able to enhance NUE, crop productivity and profitability, besides augmenting better farm livelihoods.
Keywords: SSNM, GIS, Crop productivity, Nutrient
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