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为培育水稻壮秧,夺取高产,我们自1971年开始学习南方的场地育秧法。通过几年实践,我们总结了正反两方面的经验,因地制宜地实行了“三改”。即秧床改地上为地下,以利用早春地温高于气温的特点,营养土改薄为厚,弥补了因营养土薄苗密根多养营不足的缺陷;改泼(喷)浇为灌水,增强揭膜后的抗灾能力。这样,就较好地解决了出苗不齐和青枯严重两大难题,在秧龄长达30天的情况下也不致出现严重青枯。1975年我们全部实行小苗育秧,每亩秧田移栽大田50亩左右。小苗育秧“三改进”的具体做
To cultivate rice seedlings, to win high yield, we have been studying the southern field seedling cultivation since 1971. After several years of practice, we summed up the pros and cons of both experience and implemented “three changes” according to local conditions. That is, the seedling bed is changed to be underground. In order to make use of the characteristic that the temperature of spring land is higher than the temperature in early spring, the nutrition soil is thinned to be thick, Uncovering the resilience. In this way, it is better to solve the emergence of two serious problems of graying and severe graying, up to 30 days in the case of seedling age will not cause serious withering. In 1975 we all practice nursery seedlings, transplanting per mu of field about 50 acres of field. Seedling raising seedlings “three improvements” to do specifically