土壤盐分对牧草及饲料作物种子发芽率的影响

目的]为增加牧草产量、促进牧草及饲料作物生产提供依据。方法]通过对饲料作物种子与牧草种子萌发阶段对盐分反应的观察和鉴定,研究牧草与饲料作物的耐盐力。结果]随着土壤盐分的增加,种子发芽率和种子活力指数逐渐下降,饲料作物种子对土壤盐分的耐受性低于牧草种子。结论]在盐碱土中种植牧草及饲料作物,必须先测定盐浓度,如果大于2.0%则需进行改良后方能种植。

Analysis of the Effect on Seed Germination Rate of Soil Salinity

Objective] The research aimed to provide references to increase the herbage yield and promote the production of herbage and forage crop.Method] The salt-tolerance ability of herbage and forage crop was studied by the observation and identification to the salt-tolerance response of the sprouting stage herbage and forage crop seeds.Result] The seed-germination rate and the seed vigor index decreased gradually as the soil salinity increased.The salt-tolerance ability of forage crop seed was lower than that of herbage seed.Conclusion] The salt concentration must be measured before planting herbage and forage crop.If it was over 2.0%,the soil should be modified.