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1958年全国曾开展过一次土壤普查工作。在农业学大寨运动的推动下,我省又有一些县(市)先后进行了土壤普查的试点工作。开展第二次土壤普查,很有必要,因为第一次土壤普查已经过十多年,随着农业生产的发展,土壤也发生了很大变化。例如,我省建宁县,根据这次土壤普查结果,冷烂田已由第一次普查时占耕地面积的15%,下降到5%;三明地区在第一次普查时,缺钾、缺磷田块不多,这次普查结果,全区缺磷面积占耕地面积的76%,缺钾面积占44%。1976年,我们总结了各县试点
In 1958, the country conducted a soil survey. Driven by the Dazhai Movement in Agriculture, some counties (cities) in our province have successively carried out pilot work on soil censuses. It is necessary to carry out the second soil census because the first soil census has been going on for more than ten years. With the development of agricultural production, the soil has also undergone great changes. For example, in Jianning County of our province, according to the results of the soil census, the number of coldly harvested fields has dropped from 15% of the total arable land in the first census to 5%. In the first census of Sanming, potassium deficiency and phosphorus deficiency Not much plots, the census results, the region’s phosphorus area accounted for 76% of arable land, potassium area accounted for 44%. In 1976, we summarized the pilot counties