Effect of Crop Residue and Nutrient Combination on Soil Sulphur Dynamics at Different Stages of Crop Growth Under Maize - Wheat Cropping System
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2018, Vol 8, Issue 2
Abstract
India being an agriculture-dominant country produces more than 500 million tons of crop residues annually. Farmers in India burn or remove residues to facilitate seedbed preparation. Burning of crop residues is common in India causing nutrient losses (like N, P, K and S) and serious air pollutions affecting human health. To avoid straw burning, innovations in crop residue management should assist in achieving sustainable productivity and allow farmers to reduce nutrient and water inputs, and reduce risk due to climate change. Crop residues contain significant quantities of plant nutrients and their judicious application will have positive effect on nutrient management in maize-wheat system. The objective of this study was to investigate the effects of addition of crop residue and different inorganic nutrient combination on soil available sulphur, their concentration and uptake at different stages of crop growth. The available sulphur content of soil at three different stages of maize and wheat at 0-15 cm depth varied from 25.6-123.6 kg/ha and 21.3-90.6 kg/ha, and 13.7-80.7 kg/ha and 15.5-85.0 kg/ha with and without incorporation of crop residues respectively. S concentration in maize plant ranged between 0.04-0.72% and 0.09-0.52%, while in wheat plant ranged from 0.12-0.93% and 0.10-0.42% with and without incorporation of crop residues respectively. S uptake by the maize grain, straw and total S uptake by maize varied from 0.32 to 2.22 kg/ha and 0.15 to 2.57 kg/ha, 2.79 to 12.09 kg/ha and 0.79 to 12.10 kg/ha and 3.11 to 14.21 kg/ha and 0.94 to 13.88 kg/ha with and without incorporation of crop residues respectively, while in wheat crop S uptake by the grain, straw and total S uptake of the wheat crop, with and without incorporation of maize residue was varied from 0.50 to 2.70 kg/ha and 0.38 to 2.55 kg/ha, 5.98 to 28.97 kg/ha and 5.69 to 24.52 kg/ha and 6.48 to 30.87 kg/ha and 6.07 to 26.92 kg/ha respectively.
Authors and Affiliations
ASISAN MINZ, KULDEEP KUMAR, LILY EKKA
Keywords
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- EP ID EP343555
- DOI 10.24247/ijasrapr20184
- Views 152
- Downloads 0
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