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| 氮肥与植株密度互作对鸭茅种子产量的效应 | |
| 引用本文： | 王佺珍,韩建国,周禾,刘富渊,仲勇.氮肥与植株密度互作对鸭茅种子产量的效应[J].草业科学,2005,22(5):38-44. |
| 作者姓名： | 王佺珍 韩建国 周禾 刘富渊 仲勇 |
| 作者单位： | 1. 中国农业大学草地研究所草业科学北京市重点实验室,北京,100094;成都大业国际投资股份有限公司甘肃总部,甘肃,酒泉,735009 2. 中国农业大学草地研究所草业科学北京市重点实验室,北京,100094 3. 成都大业国际投资股份有限公司甘肃总部,甘肃,酒泉,735009 |
| 基金项目： | 引进国际先进农业科技计划(948计划) |
| 摘 要： | 通过三因素五水平二次通用正交旋转组合设计方案,建立回归模型及对其进行解析、寻优和频数分析,所设各试验因素对鸭茅Dactylis glomerato种子产量影响的大小顺序为施氮量(X2)>植株密度(X1)> 喷施PP333 (X3).氮和植株密度、植株密度和PP333 的互作效应对鸭茅种子产量为拮抗作用,氮和PP333为协同作用;同时得出了三因素对鸭茅种子产量的最优配比方案:植株密度355.3万～430.9万株/hm2,施氮量159.8～164 kg/hm2 ,喷施PP333量0.21～0.22 a.i., kg/hm2. |
| 关 键 词： | 鸭茅 种子产量 氮肥与密度 互作效应 |
| 文章编号： | 1001-0629(2005)05-0038-07 |
The Effect of Nitrogen and Density of Planting Coupling on Dactylis glomerato Seed Yield |
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| WANG Quan-zhen,HAN Jian-guo,Zhou He,LIU Fu-yuan,ZHONG Yong.The Effect of Nitrogen and Density of Planting Coupling on Dactylis glomerato Seed Yield[J].Pratacultural Science,2005,22(5):38-44. | |
| Authors: | WANG Quan-zhen HAN Jian-guo Zhou He LIU Fu-yuan ZHONG Yong |
| Abstract: | Using the tri-factor orthogonal design, established model based on fields experiments indicated that applied nitrogen is the first effective factor in terms of effect to Dactylis glomerato seed yield, and density of planting, spray PP333 are following; The coupling effects of the factors-density of planting and applied N , density of planting and spray PP333 are synergistic type response to the yield; applied N and spray PP333 is antagonistism.The optimum range of the factors were given: density of planting 4 294 000~450 000 shoot/hm 2,applied N 160~164.9 kg/hm 2 ,spray PP333 0.197~ 0.233 a.i., kg/hm 2 after frequency analysis. |
| Keywords: | Dactylis glomerato seed yield nitrogen and density of planting coupling effect |
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