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选用豆科与禾本科牧草各两种互为混播组合 ,研究其混播状态下种子萌发及幼苗生长的互作效应 ,结果表明 :当以白三叶、紫花苜蓿为作用牧草 ,并随期播量增加时 ,受体牧草高羊茅与紫羊茅种子萌发及幼苗生长受到显著影响 ;受体牧草紫花苜蓿种子萌发及幼苗生长则对幼苗生长有促进作用。互作效应强度的进一步分析表明 ,豆科牧草对禾本科牧草的作用一般较强 ,并在初期生长阶段有较好的表现。这一结果与混播草地豆科牧草所表现的特征相符。因此本研究可从一个侧面为混播草地豆禾组合相容性提供可资借鉴的高效简捷的判定方法。
The results showed that when white clover and alfalfa were used as grass for pasture and the amount of sowing was planted on a regular basis, the effect of intercropping on seed germination and seedling growth under mixed sowing condition was studied. Increasing, seedling growth and seedling growth were significantly affected by the herbivore fescue and fescue. Seed germination and seedling growth of the recipient forage alfalfa promoted seedling growth. Further analysis of the intensity of the interaction showed that leguminous forages were generally more potent to gramineous pasture and performed better at the initial growth stage. This result is consistent with the characteristics exhibited by mixed pasture legumes. Therefore, this study can provide an efficient and concise method for judging the compatibility of the mixed cropping system from the one side.