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早稻秧田灌溉,不仅滿足秧苗生理需水要求,且具有調节氧气、营养状况和溫度等多方面作用。培育壮秧与防止烂秧是一件事的两个方面,但在不同秧龄期,不同气候条件下,采取的灌溉措施亦有所側重。本文特就近年各地有关这方面研究主要成果,分别討論如下,供生产和研究上参考。 一 正常气温条件下的灌溉 正常气溫系指10—40℃以內的溫度。水分、氧气、溫度是种子萌发生长的必要条
Early rice seedling irrigation, not only meet the physical requirements of seedlings water requirements, and with regulation of oxygen, nutritional status and temperature and many other aspects. Cultivating strong seedlings and preventing rotten seedlings are two aspects of one thing, but at different seedling age and different climatic conditions, the irrigation measures adopted also pay more attention. This article focuses on the major achievements of the research in this field all over the world in recent years, which are discussed respectively below for reference for production and research. Irrigation under a normal temperature Normal temperature means the temperature within 10-40 ° C. Moisture, oxygen, temperature is necessary for seed germination and growth