利用土壤速测法测定土壤有机质、铵态氮、硝态氮、速效磷、速效钾、p H值等 6个指标 ,以指导水稻、玉米平衡施肥。结果表明 ,平衡施肥比常规施肥水稻增产 11.5% ,玉米增产 2 1.6 % ,且 N、P2 O5的利用率均有明显提高 Soil organic matter, ammonium nitrogen, nitrate nitrogen, available phosphorus, available potassium and p H values ​​were measured by soil quick test to guide the balanced fertilization of rice and corn. The results showed that the balanced fertilization increased yield 11.5% and corn 1.6% compared with conventional fertilization rice, and the utilization rate of N and P2 O5 increased obviously