Site specific nutrient management use in two soil type vertisol and Inceptisol of Mungeli district of Chhattisgarh on grain and straw yield

Abstract

The treatments constituted with application of all nutrients applied at optimum level known as All (SSNM dose) while in others, one of the nutrient elements from all the nutrient treatments (All) was omitted. There were eleven treatments for each type of soil and three replications with CRD (completely randomized design). All treatments were common for both the soils except omission of Fe and Mn in case of Vertisol and omission of Ca and Mg in case of Inceptisol were kept keeping the concept of soil reaction. After addition of all treatments, rice (IGKV R-1) was transplanted in three hills/pot with 2 to 3 seedlings in each hill. The yield reductions were more pronounced with N and P omission pots (43.2%, 41.7% and.34.1%, 31.8% respectively). Reductions in grain and straw yields in S omitted pots were 11.3% and 10.6%, respectively. And Grain and straw yields of rice in Inceptisol were significantly reduced with the omission of N, P, and S in comparison to the treatment (T1) that received all the nutrients.