通过七个土壤监测点连续４—９年的定位监测结果说明，我省水稻土土壤养分的变化趋势，有机质基本稳定或略上升；全氨基本稳定；碱解氢上升较快；有效磷略下降；速效钾下降。上镶钾不足已成为目前土壤的限制因子。主要培肥措施；增施肥料，重施有机肥；调整施肥比例，稳氮肥，增磷钾肥。 The results of four to nine years of continuous monitoring of seven soil monitoring sites showed that the trend of soil nutrients in paddy soils in our province was basically stable or slightly increased; the total ammonia was basically stable; the rate of alkaline hydrolysis increased rapidly; and the available phosphorus decreased slightly ; Available potassium decreased. Inadequate potassium on the soil has become the limiting factor. The main fertilization measures; increase fertilizers, heavy organic fertilizer; adjust the proportion of fertilization, stabilize nitrogen fertilizer, increased phosphorus and potassium.