Effects of Biomethanated Spentwash on Soil Properties, Nutrient Availability, Uptake, and Yield of Soybean–Wheat Sequence on Inceptisol
2015
Kamble, B. M. | Deshpande, A. N.
The research aimed to study the effect of presown application of primary biomethanated spentwash (PBSW) on soil properties, nutrient availability, uptake and yield of soybean–wheat sequence on Inceptisol. The field experiment with randomised block design was initiated during 2007–8 and present observation was recorded during 2009–10 and 2010–11.The five treatments were, recommended dose (RD) of NPK (T ₁), 100% RD of N through PBSW without (T ₂) and with P chemical fertilizer (T ₃), 50 and 25% RD of N through PBSW + remaining N and P through chemical fertilizers (T ₄,T ₅), respectively. The results revealed that the soil physical properties and microbial populations were improved in T ₂ and T ₃. The lowest soil pH and pHs were observed in T ₂. The soil electrical conductivity, organic carbon, exchangeable sodium percentage and sodium adsorption ratio of soil extracts and available K were increased with the increase in PBSW as compared to RD-NPK. The soil available N and P were decreased as PBSW increased at all the soil depths. The greatest yields and total N,P,K uptake of soybean and wheat were observed in T ₅.
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