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阳山县晚稻“3414”田间肥效试验结果表明:试验点的基础地力产量占59.3%～61.4%;肥料的增产效应表现为氮肥>磷肥>钾肥,钾肥的经济效益较低,氮、磷肥的经济效益随施肥量的增加而递减;肥料利用率低,其中氮肥利用率为27.2%～34.4%、磷肥为2.8%～13.9%、钾肥为-6.8%～17.4%;适宜且最经济的施肥配方是每667 m2施用N 10～12 kg、P2O52.5～3 kg、K2O 7～8 kg。
The experiment results of field fertilizer efficiency of late rice “3414” in Yangshan County showed that the yield of basic fertility was 59.3% -61.4% at the test point; the yield-increasing effect of fertilizer was nitrogen fertilizer> phosphate fertilizer> potassium fertilizer and potassium fertilizer with lower economic benefit, Of the economic benefits decreased with the increase of fertilizers; low utilization of fertilizers, of which nitrogen utilization rate of 27.2% to 34.4%, phosphate fertilizer was 2.8% to 13.9%, potassium fertilizer was -6.8% to 17.4%; suitable and most economical fertilizer The formula is N 10 ~ 12 kg per 667 m2, P52.5 ~ 3 kg, K2O 7 ~ 8 kg.