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为了摸清目前丰润区土壤养分含量状况与1982年以来土壤普查结果变化情况,采用常规数值平均法,对3年来全区7 000个土样化验结果进行汇总分析,结果如下。1土壤养分1.1土壤有机质。全区土壤有机质平均含量为18.00 g/kg,属五级水平,比1982年土壤有机质平均含量13.06 g/kg增长了37.8%。有机质含量增加与近年来种养殖业发展迅速,有机肥投入多和大面积实施农作物秸秆还田有关。
In order to find out the status of soil nutrient content in Fengrun district and the change of soil census results since 1982, the results of 7 000 soil samples from 3 years in the past three years were collected and analyzed by the conventional numerical average method. The results are as follows. 1 soil nutrients 1.1 soil organic matter. The average content of soil organic matter in the whole area was 18.00 g / kg, which belongs to the fifth level, which increased by 37.8% compared with the average soil organic matter content of 13.06 g / kg in 1982. The increase of organic matter content has been related to the rapid development of farming and breeding industry in recent years, the input of organic fertilizer and the implementation of large-area crop straw returning.