| 辽宁省大豆土壤养分丰缺指标研究 |
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| 引用本文： | 董环,娄春荣,牛世伟,王秀娟,张海楼,张鑫.辽宁省大豆土壤养分丰缺指标研究[J].土壤通报,2011(1):145-147. |
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| 作者姓名： | 董环 娄春荣 牛世伟 王秀娟 张海楼 张鑫 |
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| 作者单位： | 辽宁省农业科学院; |
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| 基金项目： | 辽宁省测土配方施肥工程关键技术研究、主要生态系统固碳与减排技术研究与示范(2008BAD95B01)资助 |
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| 摘 要： | 在辽宁省18个种植地区大豆土壤上布置26个大豆试验,因地制宜的选择最优施肥方案。通过对比分析历年来土壤普查的结果,得到辽宁大豆土壤养分的变化趋势;通过土壤速效养分与缺素区相对产量的趋势拟合导出函数模型,再定义丰缺区间,从而演算出丰缺指标。辽宁大豆土壤养分的变化趋势为:1979年以来,碱解氮正在逐渐提高,速效磷在世纪之初没有太大变化,速效钾在整个过程中有降低的阶段,但总体还是上升趋势;从丰缺指标可以看出:辽宁省大豆土壤氮素不缺乏,应当增加钾肥的投入比例。
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| 关 键 词： | 大豆 相对产量 丰缺指标 |
The Research of the Rich-Lack index on the Soil Nutrient of Soybean in the Liaoning Province |
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| DONG Huan,LOU Chun-rong,NIU Shi-wei,WANG Xiu-juan,ZHANG Hai-lou,ZHANG Xin.The Research of the Rich-Lack index on the Soil Nutrient of Soybean in the Liaoning Province[J].Chinese Journal of Soil Science,2011(1):145-147. |
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| Authors: | DONG Huan LOU Chun-rong NIU Shi-wei WANG Xiu-juan ZHANG Hai-lou ZHANG Xin |
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| Institution: | DONG Huan,LOU Chun-rong,NIU Shi-wei,WANG Xiu-juan,ZHANG Hai-lou,ZHANG Xin(Institute of Environmental Resources and Agricultural Energy Research,Liaoning Academy of Agricultural Sciences,Shenyang 110161,China) |
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| Abstract: | 26 soybean experiments in 18 different regions of Liaoning Province were arranged and the appropriate schemes of fertilizers were chosen by environment concerned therapy.The changing trend on the soil nutrient of soybean in the Liaoning Province was found out by comparing the data of the general detailed soil survey among different years.Through the linear simulation between the contents of soil readily available nutrients and relative yield in treatments without the corresponding nutrient,function model wa... |
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| Keywords: | Soybean Relative yield Rich-lack index |
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