怎样防治菜豆落花落荚

• 作 者: 王艳侠 李秀舫
• 机 构: 卢龙县农业局蔬菜站!066400,卢龙县农业局蔬菜站!066400
• 出 处: 河北农业
• 发表日期: 1999年02期
• 关键词: 缺肥 生殖生长 秦皇岛地区 座果 适播期 防霜 浇水量 露地栽培 引蔓 花后

由于菜豆花数量多，形成期短，所以一般情况下只有20％～30％开放的花能结荚。如何降低菜豆落花落荚率，已成为实现菜豆高产高效的首要问题。据调查：菜豆落花落荚的原因一是温度过高或过低；二是湿度过大或过小；三是光照不足；四是营养生长与生殖生长失调；五是缺肥少水...

Due to the large number of bean curd, the formation of a short period, so under normal circumstances, only 20% to 30% open the flower pod. How to reduce the falling rate of bean drop falling has become the most important issue to realize the high yield and high efficiency of bean. According to the survey: bean drop falling pod the first one is the temperature is too high or too low; second is the humidity is too large or too small; Third, lack of light; Fourth, vegetative and reproductive growth disorders;