| 摘要: |
| 红萍又名绿萍,学名满江红(Azolla imbracata Nakai)。在植物学上它是一种水生蕨类固氮植物,能同时进行光合作用和固氮作用。所以在它与水稻共生过程中,能够把大气氮固定起来为水稻提供氮肥和培肥地力。近两年来我们在总结南方各地耕作改制经验的基础上,开展了北京地区稻田养萍培肥地力试验,现就调查和试验谈谈我们的一些看法。 |
| 关键词: 养萍 稻田 越冬保种 北京地区 有机肥源 光合作用 水稻 培肥地力 固氮作用 细绿萍 |
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| ON AZOLLA CULTURE TO INCREASE SOIL FERTILITY IN RICE FIELD OF BEIJING |
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| Abstract: |
| Azolla culture to increase soil fertility in rice fieldis a successful experience of the the reform of the agricultural system in getting high and stable yield as well as reducing cost in multiple cropping region of South China.This paper treats the necessity of rice field cultivation az- olla and its advantages.In the meantime also treated are questions over- which there is still controversy,such as overwinter and conservation of azolla,yellow seedling and delayed development of rice plant. The authors con... |
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