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以3个早熟菜用大豆和1个晚熟菜用大豆品种为试材,探讨了始花期追施尿素对菜用大豆农艺性状和产量的影响,旨在为提高菜用大豆的产量提供理论依据。结果表明,早熟菜用大豆品种植株矮小、分枝少、主茎节数少、结荚高度低于晚熟品种。始花期追施尿素对菜用大豆品种形态性状的影响并不明显,但可以增加二粒荚和三粒荚的比例,且中等施肥水平优于高施肥水平;始花期适量施尿素有利于增加菜用大豆的单株荚数、单株荚重、单株粒数、百粒重、籽粒产量和收获指数,且早熟品种的增产幅度大于晚熟品种。从综合性状来看,早熟品种沈农引48更具有商业价值。
The effects of topdressing urea on the agronomic characters and yield of vegetable soybean were studied with three early maturing vegetable soybean and one late maturing vegetable soybean. The aim was to provide a theoretical basis for improving the yield of vegetable soybean. The results showed that the precocious vegetable soybean cultivars were short, fewer branches and fewer main stems, and the pod height was lower than that of the late-maturing varieties. The effect of topdressing urea on the morphological traits of vegetable soybean was not obvious at the beginning of florescence, but the proportion of two pods and three pods could be increased, and the medium fertilization level was better than the high fertilization level. Soybean pods per plant, pod weight per plant, grain number per plant, grain weight, grain yield and harvest index, and early maturing varieties yield more than late-maturing varieties. From a comprehensive point of view, early maturing varieties of Shen cited 48 more commercial value.