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土壤养分是土壤肥力的四大指标之一,包括有机质、全量和有效态的氮、磷、钾以及各种微量元素,土壤养分对农作物的生长具有极其重要的作用。通过对安阳市2005-2011年测土配方施肥项目所采集的耕层土壤样品测定结果与1982年第二次土壤普查数据比较分析,结果表明,耕层土壤有机质、全氮、有效磷含量分别较1982年上升了31%、54%、123%,速效钾含量下降了20%,耕层土壤养分含量虽有上升,但还处于较低水平,必须提高
Soil nutrient is one of the four major indicators of soil fertility, including organic matter, total and available nitrogen, phosphorus, potassium and trace elements. Soil nutrients play an extremely important role in the growth of crops. The results of soil organic matter collected from 2005 to 2011 by soil testing and fertilizer project in Anyang City were compared with the results of the second soil census in 1982. The results showed that the contents of organic matter, total nitrogen and available phosphorus in top soil were respectively In 1982, it increased by 31%, 54% and 123%, while the available potassium content decreased by 20%. Although the nutrient content of topsoil increased, it was still at a low level and must be raised