Vol. 7, Issue 6 (2019)
Assessment of crop productivity and soil nutrient status under different levels of nitrogen in cereal-pulse based cropping system
Author(s): Usha Kumari and A Sathish
Abstract: The effect of increasing level of nitrogen on grain yield of finger millet, maize and field bean, and available soil nutrient status was studied in the experiment. Two experiments were conducted at AICRPDA and AICRP on Agroforestry, under rainfed and irrigated conditions, respectively. Split plot design was used which consist of three levels of nitrogen viz., high (100% Recommended dose RD), medium (50% RD) and low (no application of nitrogen) as subplot and type of crop grown as finger millet, field bean and maize were grown as main plot under both irrigated and rainfed conditions. Apart from nitrogen, other cultural practices were followed as per the package of practices. Available nutrients of soil were analysed and grain yield were recorded after the harvesting of crop. It was found that increased level of nitrogenous fertilizer enhanced the grain yield in all the crops and impact was more pronounced under irrigated experiment. Available nitrogen and micronutrients were recorded in increasing trend with increase in the nitrogen level. However, the impact was more in maize crop. Available phosphorus and potassium content in soil a decreased in content with increase in level of nitrogen. The interaction effect of crop grown and level of nitrogen was recorded non-significant under available nutrients content in rainfed condition while in irrigated condition interaction was found significant for potassium and micronutrients except copper. Thus, it was concluded that higher nitrogen level increased the crop yield as well as maintained the soil nutrient status in the soil as compared to low level. Cultivation of different crops has differential impact on soil nutrient status and plays an important role in the soil fertility.
Pages: 3070-3076 | 193 Views 71 Downloads
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How to cite this article:
Usha Kumari, A Sathish. Assessment of crop productivity and soil nutrient status under different levels of nitrogen in cereal-pulse based cropping system. Int J Chem Stud 2019;7(6):3070-3076.
