Vol. 7, Special Issue 6 (2019)
Use of post biomethanated spent wash as a soil amendment for sodic soils
Author(s): Reshma Shinde, Shikka Verma, Sarika Gore and AN Deshpande
Abstract: India has 6.73 Mha of salt-affected soils, of which 3.72 Mha is mainly sodic in nature. The amelioration of sodic soils is the first logical step and a prerequisite for improving the fertility of these soils. The basic principle of sodic soil reclamation is to provide a source of calcium (Ca2+) to replace excess sodium (Na+) from the cation exchange sites. The post biomethanated spentwash (PBSW) is available for agriculture use as a plant nutrient source; however, little information is available on its usage as a soil amendment in reclamation of sodic soils, and hence the field experiment was undertaken to study the efficacy of PBSW in reclaiming sodic soil and its effect on yield of sunflower (Helianthus annuus L.). The experiment was laid out in randomized block design with nine treatments viz., control, varying doses of post biomethanated spentwash (30, 60, 90, 120, 150 and 180 m3 ha-1) farm yard manure (FYM) + recommended dose of fertilizer (RDF) and FYM +gypsum @ 50 % gypsum requirement + RDF with three replications. The exchangeable Ca2+, Mg2+, K+ were observed to increased significantly with the increased dose of PBSW while exchangeable Na+ was reduced significantly with the increased dose of PBSW. The treatment of PBSW application @ 180 m3 ha-1 reduces exchangeable sodium percentage by 65.46 % and exchangeable sodium by 50.5% over control. Thus it can be concluded from the study that the use of PBSW @ 180 m3 ha-1 was beneficial in amelioration of sodic soil and more effective than the use of FYM + gypsum +RDF or only FYM + RDF.
Pages: 582-586 | 464 Views 95 Downloads
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How to cite this article:
Reshma Shinde, Shikka Verma, Sarika Gore and AN Deshpande. Use of post biomethanated spent wash as a soil amendment for sodic soils. International Journal of Chemical Studies. 2019; 7(6): 582-586.
