农业环境科学学报Issue(3)：592-598,7.DOI:10.11654/jaes.2015.03.024
稻草还田和冬种绿肥对华南双季稻产量及稻田CH4排放的影响
Effects of Rice Straw and Winter Green Manure Incorporations on Grain Yields and Methane Emissions of Double-Season Rice(Oryza sativa)Field in South China
摘要
Abstract
Rice straw and winter green manure incorporations are two common practices to improve soil fertility and increase grain yields in rice farming systems in South China. However, they may also enhance CH4 emissions from the paddy fields due to carbon inputs. This ex-periment was designed to investigate the effects of rice straw and winter green manure additions on grain yields and methane emissions of paddy fields with double-season rice in South China. Compared to zero-straw treatment, incorporating whole rice straw significantly en-hanced both dry matter production and spikelets per panicle, and thus the yield of rice grains by 4.8%. Meanwhile, straw incorporation sig-nificantly stimulated CH4 emissions, which was 41.8%higher than in zero-straw treatments. Applying winter green manure significantly in-creased grain yield by 3.6%, but did not significantly affect CH4 emissions, compared to the no green manure control. There were no signifi-cant interactions between straw incorporation and green manure. Our results suggest that winter green manure would be a promising practice for low-carbon emission and high-yield rice production in South China.关键词
水稻/稻草还田/冬种绿肥/产量/甲烷排放Key words
rice/straw incorporation/winter green manure/grain yield/methane emission分类
农业科技引用本文复制引用
田卡,张丽,钟旭华,黄农荣,张卫建,潘俊峰..稻草还田和冬种绿肥对华南双季稻产量及稻田CH4排放的影响[J].农业环境科学学报,2015,(3):592-598,7.基金项目
广东省科技攻关项目（2012A020200012）；广东省发改委低碳发展专项（2011-047）；农业部公益性行业（农业）科研专项 （）
