- Publication venue
- Publication date
- 01/01/2009
- Field of study
- Publication venue
- Publication date
- 01/01/2007
- Field of study
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- Publication date
- 01/01/2008
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- Publication date
- 15/04/2009
- Field of study
- Publication venue
- Publication date
- 01/01/2009
- Field of study
针对小花碱茅实际生产中最佳收获期难于客观确定的问题,提出基于加速遗传算法的投影寻踪模型用于解决小花碱茅(Puccinellia tenuiflora)最佳收获期的判定问题,该模型通过优化指标投影方向,将多维数据指标(样本评价指标)转换到低维子空间,并根据投影函数值的大小评价出各样本的优劣,最大限度地避免了权重矩阵取值的人为干扰。结果表明:初花期收获各指标投影函数值最大,这个时期收获的牧草具有相对较高的营养价值和产量,并具有相对较低的粗纤维含量,因而这个时期收获综合评价值最高
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- 01/07/2009
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- Publication date
- 01/01/2010
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- Publication date
- 01/01/2009
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通过对碱蓬的物候期调查与以往生产实践总结,介绍其生物学特性以及在播种时间、栽植密度、水分和温度管理等方面的技术要点,制订了适应东北地区的碱蓬保护地高效栽培技术,以指导生产实
- Publication venue
- Publication date
- 01/01/2009
- Field of study
- Publication venue
- Publication date
- 01/01/2009
- Field of study