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马铃薯施用Mg·N·P_2O_5·K_2O肥优化数学模型研究
引用本文:刘爱华,何庆才,蒋燕,翟玉玲.马铃薯施用Mg·N·P_2O_5·K_2O肥优化数学模型研究[J].安徽农业科学,2006,34(10):2221-2223.
作者姓名:刘爱华  何庆才  蒋燕  翟玉玲
作者单位:1. 贵州省毕节地区农技推广站,贵州,毕节,551700
2. 贵州省农业科学院科研处,贵州,贵阳,550006
摘    要:采用二次回归正交旋转组合设计方法研究Mg、N、P2O5、K2O施用量与马铃薯生产成本、纯收入及产投比的关系,建立了马铃薯生产成本、纯收入及产投比与Mg、N、P2O5、K2O施用量间的优化数学模型。在对模型进行深入分析的基础上,作了计算机模拟试验,提出了2套马铃薯高产、高效栽培的施肥模型:纯收入高于9 000元/hm2,产投比高于2.21时的施肥量为Mg肥(MgSO2)15.697 5~18.742 5kg/hm2,N肥(纯N)35.100 0~45.137 5 kg/hm2,磷肥(P2O5)97.47~155.52 kg/hm2,K肥(K2O)125.685~149.445 kg/hm2。纯收入高于10 000元/hm2,产投比高于3.0施肥量为Mg肥(MgSO2)16.485~27.765 kg/hm2,N肥(纯N)9.552 5~44.697 5 kg/hm2,磷肥(P2O5)63.585~129.915kg/hm2,K肥(K2O)为102.802 5~173.947 5 kg/hm2。

关 键 词:高产高效栽培  数学模型  马铃薯
文章编号:0517-6611(2006)10-2221-03
修稿时间:2006年2月15日

Study on the Application Model of MgSO2,N,P2O5 and K2O in Potato
Liu Ai-hua.Study on the Application Model of MgSO2,N,P2O5 and K2O in Potato[J].Journal of Anhui Agricultural Sciences,2006,34(10):2221-2223.
Authors:Liu Ai-hua
Abstract:MgSO2 fertilization in potato was less reported.The design of combination quadrdtic recursive with obverse cross circumrotate was adopted in the experiment in the optimum mathematics model of the ratio of output to cost and the application of MgSO2,N,P and K in potato production.Based on the analysis of the model,the authors carried out the simulated test with computer system and worked out two models of high yield and high efficiency: The model of the ratio of output to cost being over 2.21 and the pure proceeds being over 9 000 yuan/hm2 was that dosage range: the pure MgSO2 is from 15.697 5~18.742 5 kg/hm2,the dosage range of pure N was from 35.1~45.1375 kg/hm2,the dosage range of P2O5 was from 97.47~155.52 kg/hm2 and the dosage range of K2O was from 125.685~149.445 kg/hm2.The model of the ratio of output to cost being over 3 and the pure proceeds being over 10 000 yuan/hm2 was that dosage range pure MgSO2 is from 16.485~27.765 kg/ hm2,the dosange range of pure N was from 9.552 5~44.697 5 kg/hm2,the dosage range of P2O5 was from 63.585~129.915 kg/hm2 and the dosage range of K2O was from 102.802 5~173.947 5 kg/hm2.
Keywords:High yield  High efficiency  Mathematics model  Potato  
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