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紫云英的薄紗是什么顏色的花 紫云英的薄紗是什么顏色

  • 生活
  • 2023-04-19 18:31
紫云英的薄紗是紫紅色的,有的呈淡紅色。紫云英是豆科、黃耆屬植物,分布于中國長江流域各省區(qū),喜溫暖、濕潤的環(huán)境,中國各地多栽培。生長期需要有充足的水分和養(yǎng)分,保持土壤濕潤、肥沃即可。每天需要提供充足的光照,促使植株充分進(jìn)行光合作用即可。

  紫云英種子萌發(fā)的適宜溫度為15℃-25℃,發(fā)芽時(shí)需要吸收較多水分和大量的氧氣。

  紫云英幼苗時(shí)期根系的生長比地上部快,越冬期間,根系和地上部生長較緩慢,開春后地上部生長加速,但根系的生長仍較平穩(wěn),到現(xiàn)蕾期后,地上部生長速度陡然加快。

  紫云英在盛花期,根系和地上部的干物質(zhì)之比約1:4-6。紫云英的根瘤菌屬紫云英根瘤菌族,它不是土壤常住微生物區(qū)系,在未種植過紫云英的地區(qū)一般需要接種根瘤菌。

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