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Soil fertility in several parts of Nepal is declining mainly due to continuous cultivation and without replenishing soil nutrient removal by crops with quality fertilizers in required quantity. Nepal does not produce chemical fertilizers and most farmers cannot afford to buy the imported fertilizer. Under these circumstances, emphasizing locally av...
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... might be due to supplementation of higher (2.54 %) nitrogen percentage found in biogas slurry of 5 days age. Similarly, the contribution of higher (70.37%) organic matter may also be counted for higher grain yield ( Table 2). The biogas slurry is a good source of plant nutrients and can improve crop yield and soil properties (Smith & Elliot, 1990;Prasad & Power, 1991;Pathak et al., 1992). ...Similar publications
Bread wheat is one of the most important staple crops in Ethiopia and it is largely produced by smallholder farmers in the highlands of the country. Its productivity is, however, very low below the world average mainly due to the dwindling of soil productivity and depletion of soil fertility as the results of complete removal of crop residues as we...
Bread wheat is one of the most important staple crops in Ethiopia and it is largely produced by smallholder farmers in the highlands of the country. Its productivity is, however, very low below the world average mainly due to the dwindling of soil productivity and depletion of soil fertility as the results of complete removal of crop residues as we...
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... The grain yield of rice obtained either with 120 kg N ha -1 or with 80 kg N ha − 1 along with 6 Mg ha − 1 of BGS was statistically the same, indicating that application of BGS may allow saving 40 kg N ha − 1 in rice during all three years (Table 3) (Tang et al. 2019). BGS is produced after anaerobic digestion, has a pH of 7.1, and is rich in nutrient content (Wentzel et al. 2015, Pandey et al. 2020. Pandey et al. (2020) reported that BGS also helped to obtain a higher wheat crop yield in the rice-wheat cropping system. ...
... BGS is produced after anaerobic digestion, has a pH of 7.1, and is rich in nutrient content (Wentzel et al. 2015, Pandey et al. 2020. Pandey et al. (2020) reported that BGS also helped to obtain a higher wheat crop yield in the rice-wheat cropping system. BGS not only provides N, P, and K but also acts as a soil conditioner by enhancing soil organic matter (SOM) and the physical health of the soil (Rahman et al. 2014, Zheng et al. 2017. ...
There are 2.55 lakh dung-based biogas plants in India where dung is digested anaerobically to produce 76.8 Mt of effluent bio-digested slurry (BGS). This vast amount of BGS as an N and P source in the rice-wheat system will not only help reduce the use of chemical fertilizers but also leave a positive balance of phosphorus in Indian soils. An experiment was conducted using a split-plot design with two levels of BGS (0 and 6 Mg ha-1 on a dry weight basis) and four selected combinations of nitrogen and phosphorus on rice alone in the main plots and three P rates (0, 13, and 26 kg P ha-1) on wheat in sub-plots for three years. There was a significant increase in wheat yield with phosphorus application up to 60 kg ha-1 , whereas the previous rice crop was grown without BGS. Applying BGS to rice could help save 30 kg P 2 O 5 ha-1 in the subsequent wheat crop. Application of 6 Mg ha-1 of BGS and 80 kg N ha-1 produced a rice yield equivalent to 120 kg N ha-1 as urea alone and could save 40 kg N ha-1 in rice. Phosphorus uptake by rice and wheat increased significantly after 60 kg P 2 O 5 ha-1 was applied to the wheat. Applying BGS significantly increased the soil fertility status and created a positive nitrogen and phosphorus balance , reducing the production cost. The BGS application at the rate of 6 Mg ha-1 was found to compensate for a significant fraction of N (75%) and P (50%) as per recommended chemical fertilizers. Applying BGS also enriched the soil with organic carbon, P, and DTPA-extractable micronutrients (Fe, Mn, Zn, and Cu) and improved the N-, P-, and K-balances significantly.
