| 根系不同水平间距埋置秸秆对作物生长影响的研究 |
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| 引用本文： | 余碧峰,朱梅,李晓乐.根系不同水平间距埋置秸秆对作物生长影响的研究[J].安徽农学通报,2015(9):76-78. |
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| 作者姓名： | 余碧峰 朱梅 李晓乐 |
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| 作者单位： | 安徽农业大学工学院,安徽合肥,230036 |
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| 摘 要： | 为了研究作物根系不同水平间距埋置秸秆对作物生长的影响,在安徽省蚌埠市五道沟水文水资源实验站开展了田间定位和对比实验。实验作物选择大白菜,实验设一个不埋置秸秆的对照组测坑,其余4组测坑秸秆埋置位置距根系水平间距分别为0、0.1m、0.2m、0.3m,通过大白菜总产出质量和对收割后的土壤土质分析对比各实验组的实验效果。结果表明,秸秆埋置位置与作物根系相距0.1m时实验组大白菜总质量最优,其值比最差组多28.6个百分点;同时,分析该组碱解氮、速效P、速效K和有机质含量,均较其他对照组均衡。实验表明,秸秆埋置位置距离作物根系0.1m位置处最有利于提高作物产量并改善土壤肥力。
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| 关 键 词： | 秸秆还田 埋置位置 土壤养分 |
Effects of the Different Levels of Crop Roots Buried Straw Spacing on Crop Growth |
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| Abstract: | In order to study the different levels of crop roots buried straw spacing effects on crop growth, field positioning and comparative experiments were carried out in Bengbu Wudaogou Hydrological experi?mental station. The experimental crop was cabbage. The experiment designed a group without buried straw, and the remaining four test pits buried stalk position from the root level of the pitch were 0,0.1m,0.2m, 0.3m. Total output of cabbage and soil after the harvest can help to analyze the results in each experimen?tal group.The results showed that when the position of straw and crop roots was embedded with the dis?tance of 0.1m in the experimental group,the quality of the cabbage was the best and its value was 28.6 percentage points higher than the worst group;at the same time,the available nitrogen,available P,K and organic matter content kept balance with those in the control groups. Experiments show that the straw bur?ied 0.1m location away from straw plant roots is at the most favorable position to increase crop production and improve soil fertility. |
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| Keywords: | Straw returning Embedding position Soil nutrient |
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