作物学报2017，Vol.43Issue(12)：1802-1816,15.DOI:10.3724/SP.J.1006.2017.01802
秸秆全量还田与氮肥运筹对机插优质食味水稻产量及品质的影响
Effects of Total Straw Returning and Nitrogen Application Regime on Grain Yield and Quality in Mechanical Transplanting Japonica Rice with Good Taste Quality
摘要
Abstract
An experiment was conducted using two rice cultivars with good taste quality grown in Jiangsu, Nanjing 5055 and Nanjing 46, with total pure nitrogen application of 300 kg ha–1, including six proportions of base-tiller nitrogen fertilizer to earing fertilizer at 9:1, 8:2, 7:3, 6:4, 5:5, and 4:6, to explore the influence of total straw returning and different nitrogen applications on the yield and quality of rice. Compared with non-application of straw, the total straw returning application had a significant yield-increasing effect showing the average yield increase of 5.04% in Nanjing 5055 and in 4.64% Nanjing 46. With the decrease of proportion of base-tiller nitrogen fertilizer in total nitrogen application rate, yield of mechanical transplanting japonica rice with total straw returning showed a trend of increasing first and then decreasing, and the treatment with the ratio of base-tiller nitrogen fertilizer to earing nitrogen fertilizer of 7:3 had the highest yield. The treatment with total straw returning significantly increased the protein content of rice, deceased chalkiness rate and chalkiness degree, increased the ratio of length to width of ker-nel, therefore improved appearance quality and nutritional quality of rice. The treatment total straw returning was also conducive to the improvement of cooking and eating quality, showing significantly improved breakdown value and taste value, and reduced setback value. Increasing the ratio of panicle fertilizer to total N significantly improved the processing and nutritional quality of rice, improved the whole milled rice rate, but at the same time increased the rice chalkiness, reduced the appearance quality, and cooking and eating quality of rice also.关键词
秸秆全量还田/氮肥运筹/优质食味水稻/产量/稻米品质Key words
Total straw returning/Nitrogen application/Good taste quality rice/Yield/Rice quality引用本文复制引用
陈梦云,李晓峰,程金秋,任红茹,梁健,张洪程,霍中洋..秸秆全量还田与氮肥运筹对机插优质食味水稻产量及品质的影响[J].作物学报,2017,43(12):1802-1816,15.基金项目
本研究由国家重点研发计划项目(2016YFD0200805, 2013BAD07B09), 江苏农业三新工程项目(SXGC[2016]421, BE2016351, BE2016364)和江苏农业科技攻关项目(BE2015340)资助.This study was supported by the National Key Research and Development Program (2016YFD0200805, 2013BAD07B09), the Three New Agriculture Project of Jiangsu Province (SXGC[2016]421, BE2016351, BE2016364), and Research on Agricultural Science and Technology in Jiangsu (BE2015340). （2016YFD0200805, 2013BAD07B09）
