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红壤和黄棕壤旱改水后的第二、三年均有一个产量下降的过程,如果不注意培肥,这一过程可以持续很长,甚至使旱改水失败。以下蜀黄土发育的黄棕壤为供试土壤,加入1—9%猪粪,模拟水田的水分条件,在温室中培育,在短时间内使土壤形成一个有机质从
In the second and third years after the drought and red-watering of red and yellow-brown soil, there is a process of yield decline. If we do not pay attention to fertilization, this process can last a long time and even make the drought and water fail. The following yellow loess soil developed yellow loess as the test soil, adding 1-9% pig manure, paddy water conditions simulated in the greenhouse cultivation, in a short period of time to make the soil form an organic matter from