| 混料试验设计在西瓜包膜控释尿素配比研究中的应用 |
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| 引用本文： | 王鑫,张希彪,刘建新,徐秋明,曹兵.混料试验设计在西瓜包膜控释尿素配比研究中的应用[J].土壤通报,2006,37(6):1142-1145. |
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| 作者姓名： | 王鑫 张希彪 刘建新 徐秋明 曹兵 |
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| 作者单位： | 1. 陇东学院,生命科学系,甘肃,庆阳,745000
2. 北京市农林科学院,植物营养研究所,北京,100089 |
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| 基金项目： | 甘肃省庆阳市科技攻关项目;陇东学院校科研和教改项目 |
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| 摘 要： | 采用田间试验,研究了混料设计中的单形重心设计在西瓜控释尿素与普通尿素配肥上的应用,测定了西瓜的产量及其构成,配置了各因子的产量回归方程,对肥料效应及经济效益进行了分析。结果表明,D90-D60两者配合比单施普通尿素增产8.24 t hm-2,增产率11.9%,U-D60-D90三者配合比单施U增产19.2 t hm-2,增产率27.7%,产量差异达极显著水平。经济效益分析表明,U-D60-D90产投比最高为5.58∶1,施肥利润为13033.50元hm-2。
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| 关 键 词： | 西瓜 包膜控释尿素 混料设计 单形重心设计 经济效益 |
| 文章编号： | 0564-3945(2006)06-1142-04 |
| 修稿时间： | 2005年9月25日 |
Application of a mixed Experiment Design in the Study of Controlled Release Urea for Watermelon Production |
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| WANG Xin,ZHANG Xi-biao,LIU Jian-xin,XU Qiu-ming,CAO Bing.Application of a mixed Experiment Design in the Study of Controlled Release Urea for Watermelon Production[J].Chinese Journal of Soil Science,2006,37(6):1142-1145. |
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| Authors: | WANG Xin ZHANG Xi-biao LIU Jian-xin XU Qiu-ming CAO Bing |
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| Abstract: | The yield and the economic benefit of watermelon were examined through field experiment to study the application proportions of common urea and coated urea with the release period of 60 and 90 days respectively(referred to D60 and D90).Yield regression models were established and then the economic benefit was analyzed.The results indicated that compared with application of common urea,the application of D60 and D90 mixture increased watermelon yieldby 11.9% and 27.7%,respectively.Economic analysis showed that the mixture of urea,D60 and D90 produced the highest output-input ratio of 5.58:1. |
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| Keywords: | Watermelon Controlled release urea Mixture experiment design Simplex centroid design Economic benefit |
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