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2008年在汉中市开展了水稻测土配方施肥“3414”试验,结果表明:水稻的最佳经济肥料施用量为纯N 8.0 kg/666.67 m2、P2O5 4.1kg/666.67 m2、K2O 5.1 kg/666.67 m2。
In 2008, rice soil testing and fertilization “3414” was carried out in Hanzhong City. The results showed that the optimum economic fertilizer application rate was N 8.0 kg / 666.67 m2, P2O5 4.1kg / 666.67 m2, K2O 5.1 kg / 666.67 m2.