据第二次土壤普查资料分析,我县水田土壤养分状况是“高氮,、缺磷,少钾”(表1)。 表1 永新县水田耕层氮、磷、钾养分状况 单位:万亩 注:碱解氮>120ppm,速效磷>20ppm,速效钾>100ppm为高量;碱解氮60—120ppm,速效磷10—20ppm,速效钾50—100ppm为中量;碱解氮<60ppm,速效磷<10ppm,速效钾<50ppm为低量。 但是,近几年随着施肥量的增加,群众施肥习惯越来越偏重化肥。轻视有机肥,偏重氮肥,轻视磷钾肥,造成土壤氮、磷、钾养分 According to the second soil census data analysis, my county paddy soil nutrient status is “high nitrogen, phosphorus deficiency, less potassium” (Table 1). Table 1 Nutrient Status of Nitrogen, Phosphorus and Potassium in Paddy Field in Yongxin County Unit: 10,000 mu Note: The content of alkali hydrolyzed nitrogen> 120ppm, available phosphorus> 20ppm, available potassium> 100ppm is high; the content of available nitrogen is 60-120ppm, 20ppm, available potassium 50-100ppm in the amount of; alkali hydrolysis nitrogen <60ppm, available phosphorus <10ppm, available potassium <50ppm low amount. However, in recent years, with the increase of the amount of fertilizers, mass fertilization habits are more and more emphasis on fertilizers. Slightly ignoring organic fertilizer, biased nitrogen fertilizer, despised phosphorus and potassium fertilizer, resulting in soil nitrogen, phosphorus and potassium nutrients