Rice residue management for wheat under different tillage systems in Indo-Gangetic plains (India)
| dc.contributor.advisor | Singh, V.Pratap | |
| dc.contributor.author | Sirazuddin | |
| dc.date.accessioned | 2020-01-15T05:43:32Z | |
| dc.date.available | 2020-01-15T05:43:32Z | |
| dc.date.issued | 2019-07 | |
| dc.description.abstract | Field experiments entitled “Rice Residue Management for Wheat under Different Tillage Systems in Indo-Gangetic Plains (India)” were conducted in D-2 block of Norman E. Borlaug Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) during 2017-18 and 2018-19. The objectives of the investigation were to study effect of tillage systems and residue loads on the growth and productivity of wheat, weed species and biomass, properties of soil and energy consumption and economics of different treatments. Field experiments were laid in strip plot design with three tillage systems viz. conventional tillage, reduced tillage and zero tillage systems in vertical strip and three residue loads viz. no residue, 3 and 5 t/ha in horizontal strips and replicated thrice. Rice variety (Narendra Dhan 359) and wheat variety (UP 2628) were used during the study. Tillage systems and residue loads did not influence emergence count and plant height of wheat significantly during both the years. CTW recorded higher plant dry matter and root growth of wheat than ZTW. Tillage systems did not affect number of spikes/m2, length of spike, number of grains per spike, grain weight/spike and 1000-grain weight significantly during both the years. Residue load of 3 t/ha being at par with no residue recorded significantly more number of grains/spike than 5 t/ha during both the years. ZTW recorded comparable grain as well as system grain yield with CTW and RTW. Residue load did not influence the grain and system grain yield significantly during both the years. In the first year, CTW and RTW recorded more population of all major BLWs than that of Phalaris minor. In second year, in tilled plots Phalaris minor dominated BLWs. In ZTW, Coronopus didymus was the most dominating weed species during both the years. The total weed dry matter was the lowest with ZTW in both the years. Tillage system ZTW recorded the higher bulk density and soil moisture than RTW and CTW. Residue load did not influence the bulk density and soil moisture significantly. ZTW recorded 9.11 and 6.19% higher organic carbon stock than CTW and RTW, respectively. ZTW and 5 t/ha residue load recorded the highest dehydrogenase activity in soil. ZTW saved 59.5% fuel against CTW. ZTW consumed 73.77% less mean energy compared to CTW. Combination of ZTW with 3 t/ha residue load recorded higher energy use efficiency, energy productivity and lesser specific energy. ZTW incurred 33.56 and 29.79% lower cost of cultivation than CTW in the first and second year, respectively. Management of rice residue i.e. 3 or 5 t/ha, involved 8.97 and 8.08% more cost of cultivation than no residue in the first and second year, respectively. Tillage practice ZTW and treatment no residue recorded higher system B: C ratio than respective controls. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810140471 | |
| dc.keywords | rice, crop management, residual effects, wheat, tillage, rivers, India | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 179 | en_US |
| dc.publisher | G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand) | en_US |
| dc.research.problem | India | en_US |
| dc.sub | Agronomy | en_US |
| dc.subject | null | en_US |
| dc.theme | Cropping Systems | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Rice residue management for wheat under different tillage systems in Indo-Gangetic plains (India) | en_US |
| dc.type | Thesis | en_US |