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“秧好一半谷”这句农谚说明培育壮秧在争取水稻丰收中占着何等重要的地位。实践也证明早秧能够显著增产。但是,在北方水稻育秧期间(4—5月份),气温忽高忽低,变化多端,有时还有突然袭来的低温寒潮,以至造成霜冻。如何利用灌排措施来调节温度,克服其不利因素而充分利用其有利的因素,以保证秧苗正常生长是非常重要的问题;另外,盐碱地区,土壤含有过多的可溶性盐碱,会抑制种籽的萌芽和秧苗的生长,需要通过泡田洗盐和灌排措施来消除盐碱的危害,为了实现正确的灌
The phrase “good seedling half valley” phrase of agricultural progeny shows that the cultivation of strong seedlings in the fight for the harvest of rice in an important position. Practice also proved that early seedling can significantly increase production. However, in the northern rice-growing period (April-May), the temperatures fluctuated from low to high and fluctuated. There was also a sudden cold wave of cold and sometimes frost. How to use irrigation and drainage measures to adjust the temperature, to overcome its unfavorable factors and make full use of its favorable factors to ensure the normal growth of seedlings is a very important issue; In addition, the saline-alkali soil, the soil contains too much soluble salt, will inhibit the seed Germination and seedling growth, the need to wash salt and irrigation through the field irrigation and drainage measures to eliminate the dangers of salt and alkali, in order to achieve the correct irrigation