| 小麦玉米带田空间构象及密、肥因素与产量关系的联合分析 |
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| 引用本文： | 景锐,黄高宝,黄鹏.小麦玉米带田空间构象及密、肥因素与产量关系的联合分析[J].甘肃农业大学学报,1994,29(4):359-365. |
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| 作者姓名： | 景锐 黄高宝 黄鹏 |
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| 作者单位： | 甘肃农业大学农学系 |
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| 摘 要： | 运用双变量方差分析法对一定带宽下小麦、玉米所占比例、密度、化肥施用水平与复合群体经济产量的关系进行了系统研究，认为带田中小麦玉米的不同配置比例是决定其联合产量的首位因子，密度次之，化肥施用水平居三；小麦、玉米产量对带型结构变化的反应不同原因有三：①边仔优势对空带补偿作用的差异，②不同带型玉米前期受小麦带影响的差异；确定在该试验地条件下要使小麦玉米联合产量≥１５０００ｋｇ／ｈｍ￣２，必须使小麦播量、玉米种植密度分别不低于４５０万粒／ｈｍ￣２、６００００株／ｈｍ￣２，化肥施用水平纯Ｎ、Ｒ＿２Ｏ＿５分别高于３００ｋｇ／ｈｍ￣２、１５０ｋｇ／ｈｍ￣２，并且玉米占带宽的比例不得低于１／２。
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| 关 键 词： | 小麦玉米带田，群体结构 |
Bivariety Analysis of Some Factors Affecting the Mixing Yield of Wheat-corn Intercropping Population |
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| Jin Rui Huang Gaobao Huang Peng.Bivariety Analysis of Some Factors Affecting the Mixing Yield of Wheat-corn Intercropping Population[J].Journal of Gansu Agricultural University,1994,29(4):359-365. |
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| Authors: | Jin Rui Huang Gaobao Huang Peng |
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| Abstract: | In order to find out the factors affecting the production of wheat-corn intercropping,the chemical fertilizer quantity, density and planting style(wheat and corn occuppied area separatly on a given area)have been analysed.The results showed that of all the factors tested,theplanting style affected yield the most,then density,and chemical fertilizer the least.At the sametime we found that the wheat and com responsed differently,and the reasons could be:1.the difference of border rows′compensation ability for the blank zone for wheat and corn;2.the differenceof wheat′s over shade on corn′s early period for different styles; 3.the difference of population self-adjusting ability for different density and planting style.In this area,for the aim yield(wheat andcorn)of≥1500 0kg/hm￣2, we suggested that the density of wheat and corn should separately be4,500,000/hm￣2 and 60, 000/hm￣2,and chemical fertilizer quantity no less than 300kgN/hm￣2,150kgP_2O_5/hm￣2,and the area corn occupied higher than 1/2. |
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| Keywords: | intercropping of wheat and corn population structure |
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