This paper monitors the differences of early rice yield and the emissions of methane and nitrous oxide in the paddy field, based on the different cultivation technologies（high-yield scattered-planting mode, transplan...This paper monitors the differences of early rice yield and the emissions of methane and nitrous oxide in the paddy field, based on the different cultivation technologies（high-yield scattered-planting mode, transplanting mode, farmer-planting mode）. Results suggested that the rice yield by high-yield scattered-planting mode and transplanting mode was significantly higher than farmer-planting mode, and the increase reached 16.4% and 17.7%. The difference of high-yield scattered-planting mode and transplanting mode was insignificant. The potential contributions of the methane amount by these three patterns to the global contribution were all above90%. The emission of methane during the growth period by the high-yield scatteredplanting mode was dramatically lower than that by transplanting mode and farmerplanting mode, while the differences between the high-yield transplanting mode and the farmer mode were insignificant. The changes of global temperature increase and the emission of methane were the same. The greenhouse gas intensity of high-yield scattered-planting mode was the lowest, and the farmer-planting mode was the highest. Therefore, the scattered-planting with reasonable fertilizing method is the most essential way to realize high yield of rice and the reducing the greenhouse gas emission as well.展开更多
Jiangzao 361 was bred by Institute of Food and Oil Crops, Nanchang Ac- ademy of Agricultural Sciences and Jiangxi Kewei Institute of Agricultural Crops from Jiazao 311 and intermediate material Z6340 through sexual hy...Jiangzao 361 was bred by Institute of Food and Oil Crops, Nanchang Ac- ademy of Agricultural Sciences and Jiangxi Kewei Institute of Agricultural Crops from Jiazao 311 and intermediate material Z6340 through sexual hybridization. This variety has proper plant shape, wide and straight flag leaf and strong and thick stem, with the advantages of more grains per panicle, close seeds, high seed set- ting rate and good color in maturation stage. In December 2014, the variety passed the examination and approval by Jiangxi Crop Variety Approval Committee in 2014. In this study, the characteristics of the variety, and its high-yielding cultivation tech- nique of direct seeding in the rice field in Jiangxi Province and seed reproduction technique were introduced.展开更多
Anyou 08 is an early-maturing hybrid rice variety bred by crossing high- quality resistant sterile line Anfeng A as female parent with high-combining ability restoring line QN2058 as male parent. Its average yield in ...Anyou 08 is an early-maturing hybrid rice variety bred by crossing high- quality resistant sterile line Anfeng A as female parent with high-combining ability restoring line QN2058 as male parent. Its average yield in regional trail in Guizhou Province in 2009-2010 reached 9.11t/hm^2, which was higher than control by 11.31%. Anyou 08 shows good comprehensive traits of population. It is suitable for high cold mountainous areas and middle-early maturing rice areas.展开更多
基金Supported by National"Twelfth Five-Year Plan"of Scientific and Technological Support Plan(No.2011BAD16B04)~~
文摘This paper monitors the differences of early rice yield and the emissions of methane and nitrous oxide in the paddy field, based on the different cultivation technologies（high-yield scattered-planting mode, transplanting mode, farmer-planting mode）. Results suggested that the rice yield by high-yield scattered-planting mode and transplanting mode was significantly higher than farmer-planting mode, and the increase reached 16.4% and 17.7%. The difference of high-yield scattered-planting mode and transplanting mode was insignificant. The potential contributions of the methane amount by these three patterns to the global contribution were all above90%. The emission of methane during the growth period by the high-yield scatteredplanting mode was dramatically lower than that by transplanting mode and farmerplanting mode, while the differences between the high-yield transplanting mode and the farmer mode were insignificant. The changes of global temperature increase and the emission of methane were the same. The greenhouse gas intensity of high-yield scattered-planting mode was the lowest, and the farmer-planting mode was the highest. Therefore, the scattered-planting with reasonable fertilizing method is the most essential way to realize high yield of rice and the reducing the greenhouse gas emission as well.
文摘Jiangzao 361 was bred by Institute of Food and Oil Crops, Nanchang Ac- ademy of Agricultural Sciences and Jiangxi Kewei Institute of Agricultural Crops from Jiazao 311 and intermediate material Z6340 through sexual hybridization. This variety has proper plant shape, wide and straight flag leaf and strong and thick stem, with the advantages of more grains per panicle, close seeds, high seed set- ting rate and good color in maturation stage. In December 2014, the variety passed the examination and approval by Jiangxi Crop Variety Approval Committee in 2014. In this study, the characteristics of the variety, and its high-yielding cultivation tech- nique of direct seeding in the rice field in Jiangxi Province and seed reproduction technique were introduced.
文摘Anyou 08 is an early-maturing hybrid rice variety bred by crossing high- quality resistant sterile line Anfeng A as female parent with high-combining ability restoring line QN2058 as male parent. Its average yield in regional trail in Guizhou Province in 2009-2010 reached 9.11t/hm^2, which was higher than control by 11.31%. Anyou 08 shows good comprehensive traits of population. It is suitable for high cold mountainous areas and middle-early maturing rice areas.
