句容市基本农田耕层有机质平均为1.54%,速效磷5.1×10-6,速效钾72×10-6,80%以上面积缺磷,缺钾面积更大,达94%以上。全市年产量超过12750kg/hm2的高产田面积,占24.21%;年产量在10500kg/hm2以下的低产田面积占20.13%。因此,在目前基础地力的情况下,调整投肥结构,改进施肥技术,尽可能地提高单位面积的产量,已成为农业生产的当务之急。 The average plow level of organic matter in basic farmland in Jurong was 1.54%, available phosphorus was 5.1 × 10-6, available potassium was 72 × 10-6, and the area with more than 80% phosphorus was deficient. The potassium deficiency area was even larger, reaching 94%. The city’s annual output of more than 12750kg / hm2 of high yield area, accounting for 24.21%; annual output of less than 10500kg / hm2 in low-yield fields accounted for 20.13%. Therefore, under the current situation of basic fertility, adjusting the structure of fertilizing fertilizer, improving fertilization technology, and increasing the output per unit area as much as possible have become urgent tasks for agricultural production.