襄阳区水稻测土配方施肥“3414”试验初报

Soil Testing and Formulated Fertilization Experiment "3414" of Rice in Xiangyang District

通过"3414"试验,确定了襄阳区水稻主推品种华两优1206,在有机质含量为2.11%,碱解氮为79.97 mg/kg,有效磷为13.34 mg/kg,速效钾为74.20 mg/kg,pH为7.1的淹育型水稻土田块上种植,氮、磷、钾肥的施肥量分别为N13.3 kg/666.7 m2、P2O54.0 kg/666.7m2、K2O 5.9 kg/666.7m2时,水稻可获得最高产量,分别为450.9 kg/666.7m2、445.6 kg/666.7m2、443.9 kg/666.7m2;氮、磷、钾肥的施肥量分别为N 9.6 kg/666.7m2、P2O5 2.7 kg/666.7m2、K2O 4.1 kg/666.7m2时,水稻可获得经济最佳产量,分别为446.7 kg/666.7m2、443.7 kg/666.7m2、441.6 kg/666.7m2。

It is through experiment ＂3414＂ that the excellent recommended species 1206 was chosen. When we fertilize the rlee field, which contains 2.11% of organic matter, 79.97 mg/kg of alkali-hydrolyzable nitrogen, 13.34 mg/kg of available phosphorus, 74.20 mg/kg of active potassium and whose Ph value is 7.1, with N 13.3 kg/666.7 m2, P2054.0 kg/666.7m2,K20 5.9 kg/666.7m2 respectively, we can get the greast harvest： 450.9 kg/666.7m2, 445.6 kg/666. 7m2, and 443.9 kg/666.7m2. When we fertilize the rice field with N 9.6kg/666.7 mZ,PzO52.7 kg/666.7m2,K20 4.1 kg/666. 7m2 respeetively, we can get the most profitable harvest： 446.7 kg/666. 7m2, 44 3. 7 kg/666.7m2, 441.6 kg/666. 7m2.