International Journal of Chemical Studies
Vol. 6, Issue 3 (2018)
Effect of crop establishment and nutrient management on productivity and profitability of rice under rice-wheat system
Author(s): Himanshu Singh, UP Singh, SP Singh and Y Singh
Abstract: A field experiment was conducted during 2014-2015 and 2015-2016 at the Agricultural Research Farm, Banaras Hindu University, Varanasi (U.P.) India. Field experiments were laid out in split plot design replicated thrice with four crop establishment methods viz., Conventional Till (CT) rice– Conventional Till (CT) wheat, Conventional Till Direct Seeded (CTDSR) rice–CT wheat, CTDSR– Zero till (ZT) wheat, ZT rice–ZT wheat in main plots and three nutrient management practices viz., Farmers practice (164 kg N, 50 kg P2O5, 32 kg K2O and 4 kg Zn ha-1), Recommended fertilizer dose (150 kg N, 60 kg P2O5, 60 kg K2O and 5 kg Zn ha-1) and site specific nutrient management – rice, wheat crop manager (SSNM- RWCM) recommendation for rice 2014 transplanted, (Direct Seeded Rice) DSR and zero till basal application 38 kg N, 26.5 kg P2O5, 19.5 kg K2O, 5.25 kg Zn/ha, at active tillering (AT) 45 kg N/ha and at panicle initiation (PI) 45 kg N/ha and 19.5 kg K2O /ha. In 2015 transplanted rice basal application 31.5 kg N, 33.5 kg P2O5, 18 kg K2O and 5.25 kg Zn/ha, at (AT) 37.5 kg N/ha and at (PI) 37.5 kg N and 18.0 kg K2O /ha and in DSR and zero till rice basal application 33.5 kg N, 36.0 kg P2O5, 19.5 kg K2O and 5.25 kg Zn/ha, and at active tillering 39.0 kg N/ha and at panicle initiation 39.0 kg N and 19.5 kg K2O/ha have been applied in ricein sub-plots during both the years. Crop establishment methods differed significantly in respect of yield attributes and grain yield of rice. However, pooled data revealed that, ZT rice–ZT wheat recorded higher grain, as compared to other crop establishment method. Among nutrient management practices, SSNM-RWCM (N3) recorded significantly higher grain and yield attributes of rice over farmers practice and it was at par with recommended fertilizer dose. ZT rice–ZT wheat method recorded highest system productivity followed by CTDSR –ZT wheat, CTDSR–CT wheat and CT rice–CT wheat in both the years. Lowest cost of cultivation, highest net returns, B: C ratio and system profitability was recorded by ZT rice–ZT wheat crop establishment method during both years of experiment followed by CTDSR–ZT wheat, CTDSR rice–CT wheat and CT rice–CT wheat. Among nutrient management practices, SSNM-RWCM in rice (N3) recoded significantly higher productivity and profitability during both years of study.
Pages: 165-170 | 479 Views 14 Downloads
How to cite this article:
Himanshu Singh, UP Singh, SP Singh, Y Singh. Effect of crop establishment and nutrient management on productivity and profitability of rice under rice-wheat system. Int J Chem Stud 2018;6(3):165-170.