Coherent fertilization regimes boost productivity and nutritional quality of soybean (Glycine max. L. Merrill)

Abstract

Environmental pollution sed by leaching and gaseous issions from chemical fertilizers necessitates evluation and optimization of organic sources of plant nutrition for soybean production under changing climate scenario. A field study was executed to test different fertilization regimes including chemical fertilizers (CF) (80 kg N and 80 kg P2O5 ha(-1)), sheep barn manure (SBM) (5161 kg ha(-1)). cattle barn manure (CBM) (4878 kg ha(-1)), liquid cattle barn manure (LCBM) (27580 kg ha(-1)) and vermicompost (VC) (4000 kg ha(-1)). The yield attributes, grain yield and fatty acid composition of soybean were taken as response variables in this investigation. The experimental design was randomized complete block design with three replications. The results revealed that SBM and CF recorded the tallest plants and first pod height respectively at both R1 and R5 growth stages, In addition, SBM remained superior for recording significantly higher leaf number at R1 and R5 and node number at R5 stage along with maximum pod number and seeds per pod. The maximum 1000 grain weight and grain yield were exhibited by LCBM which was followed by SBM. In addition, CBM gave the highest protein content while LCBM recorded the maximum oil percentage along with linoleic, mysteric and behenic acid contents, Furthermore, LCBM outperformed other fertilization regimes in terms of palmitoleic, stearic, linolenic and arachidic acids percentages along with oleic: linoleic acid ratio.