The paper presented the soil nutrition diagnosis methods and the soil nutrient level status in the black earth areas. Sugar beet yield can increase 40. 3% by applying this technique.
研究了适用于黑土要地区的甜菜土壤营养诊断方法，摸清了黑龙江省双城地区的土壤养分丰缺状况，应用本方法，甜菜产量增产40.3%。
From above mentioned, we can get a lot of information about wheat production, soil assessment and nutrition diagnosis.
并对土壤营养物质进行了模糊聚类分析，为土壤评价、小麦生产营养诊断提供了可靠信息。
The preliminary studies suggests that the values of the optimum ranges of trace elements in the soil of citrus orchards in south Fujian may provide the parameters of nutrition diagnosis for the soil.
本文初步提出闽南柑桔园土壤微量元素含量的适宜指标，可供土壤营养诊断之参考。
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