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贵州农业土壤硫素输入和输出比较，旱地土壤潜在缺硫。
Compared input and output of s in cultivated soil of Guizhou province, there was problems of potential sulfur deficiency in upland soil.
推荐稻草还田及有机肥加化肥结构，是高产条件下维持土壤硫素肥力的较佳施肥结构。
Straw and organic matter plus chemical fertilizer constitutions are recommend as optimum to sustains and increase soil sulfur fertilization.
根据我国土壤缺硫趋向，提出复混肥料须注意加入硫素。
Sulfur is getting deficient in Chinese soils, therefore the author suggests sulfur must be taken into account in production of compound fertilizers.
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