排灌机械工程学报
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排灌机械工程学报  2018, Vol. 36 Issue (11): 1152-1156    DOI: 10.3969/j.issn.1674-8530.18.1106
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秸秆还田条件水肥耦合对水稻产量与品质的影响
陈立冬1, 杨夏威2, 陈伟1, 周明耀2*
1.江苏省水利勘测设计研究院有限公司, 江苏 扬州 225127; 2.扬州大学水利与能源动力工程学院, 江苏 扬州 225009
Effects of water-fertilizer coupling with straw returning on yield and quality of rice
CHEN Lidong1, YANG Xiawei2, CHEN Wei1, ZHOU Mingyao2*
1.Jiangsu Surveying and Design Institute of Water Resources Co. Ltd., Yangzhou, Jiangsu 225127, China; 2.School of Hydraulic Energy and Power Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
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摘要 为了研究秸秆还田条件水肥耦合对水稻产量与品质的影响,采用盆栽试验对土壤水分、施氮量、秸秆还田量采用正交处理,同时设置重复3组,其中对照1组.试验结果表明:水分与肥料的投入量对水稻产量影响较大,在适宜的用量范围内,水稻产量与灌水量、氮肥施用量、秸秆还田量呈正相关关系;当超出适宜用量范围后,随着氮肥施用量及秸秆还田量的持续增加,水稻产量并没有提高,而是出现一定程度的降低;水稻产量在氮肥施用量270 kg/hm2、正常灌溉处理、秸秆还田量4 200 kg/hm2情况下达到最高.水稻籽粒蛋白质受氮肥施用量及灌溉水量影响也相对较大,在氮肥施用量324 kg/hm2、分蘖后期水分胁迫、秸秆还田量为4 200 kg/hm2情况下,水稻籽粒蛋白质含量达到最高.
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陈立冬
杨夏威
陈伟
周明耀*
关键词水稻   秸秆还田   水肥耦合   产量   品质   正交试验     
Abstract: In order to study effects of water-fertilizer coupling on yield and quality of rice under of straw returning condition, pot experiments were conducted based three factors such as soil moisture(water stress in late rice tillering, water stress in late tillering and grain-filling, normal water treatment), nitrogen application rate and straw returning rate by employing orthogonal experiment method, and at the same time, three groups were designed, including one control group. Results showed that soil moisture and nitrogen application rate as well as straw returning rate had a greater impact on rice yield. Within the allowable range, the rice yield increased with increasing irrigation water, straw returning rate and nitrogen application rate. However, beyond the range, with increasing straw returning rate and nitrogen application rate, the yield didn't rise but exhibited a reduction in some degree.Interestingly, when nitrogen application rate was 270 kg/hm2, soil moisture was in normal water treatment and straw returning rate was 4 200 kg/hm2, the rice yield reached the highest value. Nitrogen application rate and soil moisture also affected protein content of rice grain. When nitrogen application rate was 324 kg/hm2, water stress was in late-tillering and straw returning rate was 4 200 kg/hm2, the protein content of rice grain arrived at the maximum.
Key wordsrice   straw returning   water-fertilizer coupling   rice yield   quality   orthogonal testament   
收稿日期: 2018-04-30;
基金资助:

水利部公益性行业科研专项(201201005);江苏省水利科技项目(2016063)

引用本文:   
陈立冬,杨夏威,陈伟等. 秸秆还田条件水肥耦合对水稻产量与品质的影响[J]. 排灌机械工程学报, 2018, 36(11): 1152-1156.
CHEN Li-Dong-,YANG Xia-Wei-,CHEN Wei- et al. Effects of water-fertilizer coupling with straw returning on yield and quality of rice[J]. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(11): 1152-1156.
 
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