Cultivar X Cropping System Interactions in relay and row Intercropping of Bush Beans with different Maize Plant Types
Cultivar X Cropping System Interactions in relay and row Intercropping of Bush Beans with different Maize Plant Types
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不同玉米株型布什豆套种和行间作中栽培品种 X 种植系统的相互作用
DOI：
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发表时间：
1987
影响因子：
1.6
通讯作者：
W. Rodriguez
中科院分区：
文献类型：
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作者：
J. Woolley;W. Rodriguez
在哥斯达黎加的两个地点，大豆产量受到玉米和灌木豆品种与种植制度（套作、行间间作和单作）的相互作用的影响。根据叶面积指数和株高对玉米品种进行了分组。在杂草问题严重的地方，中等高度的叶型玉米在套作中的大豆产量最高，但在间作中的产量最低。高大多叶的玉米可以使间作大豆的产量与矮小少叶的品种一样多。在间作中，高大的玉米植株对豆类的遮蔽较少，而在中转作物中，中等高度的多叶植物遮蔽并抑制杂草生长，因此有利于下一茬豆类作物。在另一个地点，无论是接力种植还是间作，所有玉米组对豆类都有相同的影响。中等高度的多叶玉米品种最适合单作和在生理成熟期进行大豆的套作，但在玉米成熟期之前种植大豆的套作或大豆套作中，少叶类型更好。为单作选择的植物类型不一定最适合多种作物，一种作物可能影响另一种作物，即使它们的活跃生长期不重叠。
Summary Bean yield at two sites in Costa Rica was affected by the interactions of maize and bush bean cultivars with cropping system (relay, row intercropping and sole cropping). The maize culti-vars were grouped according to leaf area index (LAI) and plant height. At a site with a severe weed problem, leafy maize of intermediate height allowed the most bean yield in relay but the least in intercropping. Tall, leafy maize allowed as much yield of intercropped beans as short, less leafy cultivars. In intercrops, tall maize plants shaded the beans less, while in relay crops leafy plants of intermediate height shaded and suppressed weed growth so benefiting the following bean crop. At the other site, all maize groups had the same effect on beans whether grown in relay or intercropped. Leafy maize cultivars of medium height are preferable for sole crops and for relay cropping of beans at physiological maturity when weeds are a problem, but less leafy types are better for bean intercropping or for relay crops where the beans are planted before maize maturity. Plant types selected for sole cropping are not necessarily best for poly-cultures and one crop may affect another even when their periods of active growth do not overlap.