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据日本有关资料报道,盘式育秧床土PH值应调整到4—5,并确认这是培育壮苗的重要措施之一。近期国内研究资料也指出,床土调酸对提高秧苗素质有较好的效应,但研究的结果并不完全一致。1980年我所在早、晚稻两季进行三批育秧,研究在不同床土种类、硬化期气温、叶龄、
According to the Japanese data reported that the tray PH value should be adjusted to 4-5, and confirmed that this is one of the important measures to cultivate strong seedlings. Recent domestic research data also pointed out that bed soil acidity to improve the quality of seedlings have a good effect, but the results are not exactly the same. In 1980, we had three batches of seedling growing in early and late rice in two seasons, and studied the effects of temperature, age,