| 油菜秸秆还田及肥料运筹对水稻生长的影响 |
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| 引用本文： | 王允青,郭熙盛,武际,王静,胡鹏,李立胜,桑亚松,李红梅.油菜秸秆还田及肥料运筹对水稻生长的影响[J].安徽农业科学,2009,37(11):4923-4924. |
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| 作者姓名： | 王允青 郭熙盛 武际 王静 胡鹏 李立胜 桑亚松 李红梅 |
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| 作者单位： | 安徽省农业科学院土肥所,安徽养分循环与资源环境省级实验室,安徽省农作物品质改良重点实验室,安徽合肥230031;安徽省居巢区农业技术推广中心,安徽巢湖,238000;安徽省肥东县农业技术推广中心,安徽肥东,231600;安徽省萧县黄口农业技术推广站,安徽萧县,235200 |
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| 基金项目： | 国家科技支撑计划巢湖农业面源污染治理项目 |
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| 摘 要： | 目的]研究油菜秸秆的不同用量与NPK肥料运筹对水稻产量及土壤肥力的影响。方法]采用完全随机区组设计,分别于2007和2008年在肥东和居巢进行试验。结果]在肥东试验中,与未施秸秆相比,秸秆还田水稻的有效穗数、结实率、千粒重和产量分别提高0.3%、0.3%、1.9%和0.7%;秸秆还田并减少磷、钾肥施用量25%水稻的有效穗数、实粒数、千粒重和产量分别下降2.8%、1.4%、0.7%和3.8%;秸秆还田并增加氮肥施用量使水稻增产3.7%。在居巢试验中,与未施秸秆相比,秸秆还田水稻的有效穗数和成穗率下降0.9%～2.4%和1.1%～1.2%,实粒数和千粒重增加0.6%～2.9%和1.0%～1.7%;秸秆还田并减少磷、钾肥施用量25%的水稻有效穗数和实粒数增加2.1%～2.8%和2.5%～2.8%,千粒重减少0.7%～1.0%。结论]适当减少磷、钾肥用量不会使油菜秸秆还田水稻显著减产。
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| 关 键 词： | 秸秆还田 肥料运筹 水稻产量 |
Influences of Rape Straw Chopping and Returning to Field and Fertilizer Management on the Growth of Rice |
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| Institution: | WANG Yun-qing et al(Institute of Soil and Fertilizer,Anhui Academy of Agricultural Sciences,Hefei,Anhui 230031) |
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| Abstract: | Objective] The purpose was to research the influences of different dosages of rape straw and management of NPK fertilizer on rice yield and soil fertility.Method] The completely randomized block design was used to perform experiments in Feidong in 2007 and in Juchao in 2008.Result] In the experiment performed in Feidong,compared with non-applying straw,the available spikes,fruiting rate,1 000-seed weight and yield of rice with straw chopping and returning to field were enhanced by 0.3%,0.3%,1.9% and 0.7% resp.,the available spikes,full grains,1 000-seed weight and yield of rice with straw chopping and returning to field and reducing the application amount of phosphorous and potassium fertilizers by 25% were decreased by 2.8%,1.4%,0.7% and 3.8% resp.and the combination of straw chopping and returning to field and increasing the application amount of nitrogen fertilizer increased rice yield by 3.7%.In the experiment performed in Juchao,compared with non-applying straw,the available spikes and spike rate of rice with straw chopping and returning to field were decreased by 0.9%-2.4% and 1.1%-1.2% and their full grains and 1 000-seed weights were increased by 0.6%-2.9% and 1.0%-1.7%;the available spikes and full grains of rice with straw chopping and returning to field and reducing the application amount of phosphorous and potassium fertilizers by 25% were increased by 2.1%-2.8% and 2.5%-2.8% and their 1 000-seed weights were decreased by 0.7%-1.0%.Conclusion] The suitable decrement of the application amount of phosphorous and potassium fertilizers would not lead to the significant yield decrement of rice with straw chopping and returning to field. |
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| Keywords: | Straw chopping and returning to field Fertilizer management Rice yield |
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