| 土壤有机质回归模型建立、分析与调控的研究 |
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| 引用本文： | 刘永立,王宏燕.土壤有机质回归模型建立、分析与调控的研究[J].东北农业大学学报,1994,25(3):219-223. |
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| 作者姓名： | 刘永立 王宏燕 |
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| 作者单位： | 东北农业大学农学系 |
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| 摘 要： | 采用二次正交旋转设计，利用数学模型方法，定量地分析了农肥、化肥和秸秆还田对土壤有机质含量的影响及其相互间的作用；农肥、化肥和秸秆的贡献率分别为１．６３，０和１．４１．在９５％的置信区间，维持土壤有机质在４％～５．５％的定量调控措施为：农肥、化肥和秸秆的年施入量分别是１０．６～１３．７ｔ／ｈｍ２、０．４５～０．５７ｔ／ｈｍ２和１．０５～１．３６ｔ／ｈｍ２．
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| 关 键 词： | 模型，有机质，贡献率，边际效益，定量调控 |
THE STUDY ON MODELLING,ANALYSING AND REGULATING OF SOIL ORGANIC MATTER |
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| Liu Yongli ,Wang Hongyan,Hou Zhongtian and Wang Zhaorong.THE STUDY ON MODELLING,ANALYSING AND REGULATING OF SOIL ORGANIC MATTER[J].Journal of Northeast Agricultural University,1994,25(3):219-223. |
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| Authors: | Liu Yongli Wang Hongyan Hou Zhongtian and Wang Zhaorong |
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| Abstract: | Using the mathematical model and the design of quadratic rotation regresslon,the effect of farm manure,chemical fcrtilizer and straw manure on soil OM content and their niteraction were quantitatively analysed.The contribution rates of farm manure,chemical fer tilizer and straw manure are1.63,0 and1.41 respectively.In order to maintain the soil OM at 4% to 5.5% under 95% confidence interval the amounts of manure,fertilizer and straw ap plied should be 10.6 to 13.7,0.45 to 0.57 and 1.05 to1.36 t/hm2,respectively. |
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| Keywords: | model organic matter contribution rate marginal effect quantitative regulation |
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