Effect of organic and inorganic sources of nitrogen on yield, quality of wheat and soil fertility in Inceptisol of Varanasi
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Date
2021
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Department of Soil Science and Agriculture Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi
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Abstract
Inadequacy of fertilizers and their rising cost is a serious limitation for crop production. The imbalance between nutrient demand and supply is increasing exponentially day-by-day. Excessive use of agrochemicals such inorganic fertilizers, pesticides, herbicides, fungicides, etc. has caused severe effects to human, soil and environmental health are being seriously affected. This experiment is conducted to assess the effects of organic amendments and their substituting capacity for supplementing inorganic fertilizers to some extent. Observations were made that integration of organic manures and inorganic fertilizers gave superior results. Among various organic amendments, poultry manure proved to be the best option as it has highest amount of nutrient content. Yield attributes such as plant height, number of spikes per plant, number of spikelets, spike length, grain yield, stover yield and harvest index along with the quality of grains were significantly influenced by the applied organic amendments. Post-harvest soils were also affected by the kind of manures applied and hence the changes in physicochemical properties of soils were observed. In this study, proofs have been given that optimum doses of fertilizers maintain higher yield of crop and causes minimum damage to ecosystem. Sustainability can be achieved with the help of organic amendments as these conserves physico-chemical properties and soil fertility. This study focuses on benefits of integration nutrient management which is the urgent need of current scenario.
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Inorganic fertilizers