| 不同肥力等级氮磷肥施肥试验及其技术的比较 |
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| 引用本文： | 董彦华. 不同肥力等级氮磷肥施肥试验及其技术的比较[J]. 沈阳农业大学学报, 2000, 31(6): 553-555 |
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| 作者姓名： | 董彦华 |
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| 作者单位： | 辽宁省阜新县土肥站，辽宁阜新 123100 |
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| 摘 要： | 1989－1991年在辽宁省阜新县10多个乡、40多个点安排了配方施肥田间小区试验和示范田，建立了3个不同肥力等级的氮磷肥料效应函数模型，比较了常见的几种配方施肥技术。试验证明，全县最佳经济施肥量比习惯施用量平均增产粮食1696．5kg.hm^-2，增产率22．4％，粮食纯收入每公顷提高522．9元。
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| 关 键 词： | 配方施肥 肥料效应函数 测土施肥 肥力等级 氮肥 磷肥 施肥量 |
| 文章编号： | 1000-1700(2000)06-0553-03 |
| 修稿时间： | 1999-12-16 |
Comparison of Teclmiques of Optimum Fertilization in Different Fertility Degree |
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| DONG Yah-hua. Comparison of Teclmiques of Optimum Fertilization in Different Fertility Degree[J]. Journal of Shenyang Aricultural University, 2000, 31(6): 553-555 |
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| Authors: | DONG Yah-hua |
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| Abstract: | During 1989- 1991, Field plot experiments and demonstration field lands of optimum fertilization were conducted in Fuxin county for more than 50 sites. The nitrogen phosphorus fertilizer function model with three different feRility degrees was setup, and comparison with several common techniques of optimum fertilization was made. Results from the three- year experiment showed that optimum fertilizer quantity increased yield by 1696.5kg · hm-2or 22.4%, the pure income of grain increased 522.9 yuan · hm-2. |
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| Keywords: | optimum fertilizer fertilizer function model fertilization based on soil nutrients |
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