Evaluation of Maize-wheat Cropping System under Double-no-till Practice in Indo-Gangetic Plains of India
Performance of maize-wheat cropping system under resource conserving technologies viz., double no-till (flat) and permanent beds (FIRB) over conventional tillage has been evaluated in terms of economic yield, water productivity and profitability during 2004～2005 at Project Directorate for Cropping Systems Research (PDCSR), Modipuram (29°4′ N latitude, 77°46′ E longitude and at an elevation of 237m above mean sea level), India in collaboration with CIMMYT-India/RWC. Results indicated a notable increase in economic yield of maize being 19.2 and 28.9％ with furrow irrigated raised bed (FIRB) planting (5.66/ha) compared to flat no-till (4.75t/ha) and conventional till (4.39t/ha) planting systems, respectively. Productivity of wheat was higher by 7.3％ and 8.6％, respectively under flat no- till (5.56t/ha) compared to FIRB (5.18t/ha) and conventional till flat planting (5.12t/ha). Water productivity (kg grainm-3 water) of both maize and wheat was remarkably higher in FIRB planting (2.79 and 1.98) followed by flat no-till (1.74 and 1.89) and the lowest (1.36 and 1.38) in conventional till system. However, the magnitude of increase in water productivity due to FIRB/fiat no-till systems compared to conventional till planting was higher in maize than the wheat. Economic analysis revealed that net profit ( US /ha) was more in flat no-till (340 and 463) followed by FIRB (332 and 441 ) and least in conventional-till (144 and 337), respectively for maize and wheat. The minor differences were due to initial costs in forming of raised beds, which will disappear when beds are retained permanently.
Double no-till Indo-Gangetic plains Maize-wheat system Profitability Water productivity
M. L. Jat Ashish Srivastava S. K. Sharma Raj K. Gupta P. H. Zaidi H. K. Rai G. Srinivasan
Project Directorate for Cropping Systems Research, Modipuram-250110, India CIMMYT-India/RWC, NASC Complex, Pusa, New Delhi-110012, India Directorate of Maize Research, Pusa, New Delhi-110012, India CIMMYT, Mexico
国际会议
第九届亚洲玉米大会(the Ninth Asian Regional Maize Workshop)
北京
英文
144-147
2005-09-05（万方平台首次上网日期，不代表论文的发表时间）