浅析配方施肥中土壤测试及测定值的应用

文章讨论了当前农村在施肥中所存在的普遍问题。指出测土配方施肥在合理施肥中的重要意义。从土壤养分测定值的变异系数分析,土壤有机质样本的代表面积可大些,有效磷样本的代表面积可小些,有效钾样本可按质地类型取样分析,这样可节省劳力、时间和费用。根据近年来测土配方施肥的实践,提出土壤测定值的应用问题。

A PRELIMINARY ANALYSIS ON SOIL TEST AND APPLICATION OF THE TEST VALUE IN PROPER FERTILIZATION

The common Problems of applying fertilizers in today's rural area have been discussed in this papar. It was important that applying fertilizers according to the nutrient element kinds and amount of crop's need and soil's supply in adequate fertilization. By analysising the coefficient of variation of soil nutrient test values, soil specimen for testing organic matter can represent much larg field area and that for testing available phosphorus should represent much little field area, the soil specimen for testing available potassium can be collected according to soil texture types. By the recent year's practice, the problems in applying soil test value have been concluded.