摘要
查阅大量资料,讨论了在紫花苜蓿种子生产中,施用P肥可促进根系的发生和生长,促进花芽分化,有利于提高种子产量,增强牧草的抗旱、抗寒性能;K肥可促进枝条的横向发展,使子粒增大,种子产量提高,同时可提高牧草的抗寒、抗旱、耐高温和抗病虫能力。众多的报道论述了B,S和Mo等微肥通过增加紫花苜蓿的花序数/枝条、豆荚数/花序和子粒数/豆荚等种子产量构成因素,来促进生殖生长,提高种子产量。
As for the alfalfa （Medicago sativa）seed production,phosphorus fertilizer can accelerate the formation and growth, of root and differentiation of flower bud, so it is useful to increase seed yield and resistance to drought and cold. Potassium can accelerate shoots＇ horizontal development, make seed bigger, and elevates seed yield. Meantime,it can increase the resistance of alfalfa to cold, drought, heat and disease. Micro-nutrients enhance the seed yield of alfalfa by increasing the proportion of seed production relted organs such as florets/ shoot,pods/floret and seeds/pod etc.
出处
《草原与草坪》
CAS
2006年第6期15-18,共4页
Grassland and Turf
基金
农业部"寒生旱生苜蓿原种基地建设"项目(计投资(2001)1349)
