Effect of integrated nutrient management on sabaigrass-groundnut intercropping system under lateritic soils of South West Bengal.

摘要

Sabaigrass (Eulaliopsis binata) is a commercial crop of marginal and submarginal rainfed upland areas. This crop is useful for its thin and long leaves containing high quality fibre, which is a good raw material for paper industries as well for marking rope and various rope-based utility items. A field experiment was conducted to evaluate the effect of integrated nutrient management on the growth and yield of sabaigrass-groundnut intercropping system for one year (2002-03) on the acid lateritic soils under the rainfed conditions of West Bengal, India. The treatments comprised three doses of chemical fertilizers (CF), i.e. 15:10:10 (CF1), 30:20:20 (CF2) and 60:40:40 kg of N:P2O5:K2O/ha (CF3), along with farmyard manure (FYM), lime (L) and fly ash (FA). Thus, altogether 13 treatment combinations, viz. CF1, CF1+FYM, CF1+FYM+FA, CF1+FYM+L, CF2, CF2+FYM, CF2+FYM+FA, CF2+FYM+L, CF3, CF3+FYM, CF3+FYM+FA, CF3+FYM+L and untreated control, were tested under field condition. It revealed that all treatments increased leaf length (cm), number of tillers per plant, dry matter accumulation (g/m2) and yield of both crops. The integrated use of CF, FYM and FA resulted in higher yields for both crops compared with CF alone or other combinations. There was no significant difference between FA and L, also between CF2 and CF3 doses. Among all the treatment combinations, CF3+FYM+FA resulted in the best performance of both crops..