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随着农业生产大跃进,稻田土壤的调查研究也日益广泛了.因为水稻土长期的处在积水状态,一年中的利用时间又长,同时水稻种植的密度又很小,要在生产季节中进行调查挖剖面是比较困难且费工,尤其是那些深泥脚烂泥田更是麻烦了.所以往往由于挖剖面造成水稻的损伤减产,因此水稻土的调查就常被局限于非生长季节田中水干时才能进行.由于水稻土挖剖面困难,就常常用打钻来代替,这样只观察钻孔不可避免的将会产生一些错党.所以因为挖剖面的困难,就带来了对水稻土研究的麻烦.
With the great leap forward in agricultural production, investigation and research on paddy soils have become more and more widespread, because the paddy soils have long been in a state of stagnant water and have been used for a long time in one year. At the same time, the density of paddy planting is very small. During the production season It is more difficult and costly to investigate dug profiles, especially those with deep muddy soils, so paddy soil surveys are often confined to dry field water in non-growing season Because of the difficult digging of the paddy soil, drill drilling is often used instead, so observation of the borehole inevitably leads to some mistakes, and because of the difficulty of digging the profile, trouble.