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通过多年多点多品种的小区试验、定位试验及不同播期播量的高产攻关与高产示范 ,对高产小麦氮肥适宜用量进行了研究。结果表明 :在中产土壤条件下 ,6 6 6 7m2 产小麦 4 5 0～ 5 0 0kg ,以持续高产和提高土壤肥力为前提 ,每年应 6 6 6 7m2 施优质有机肥 30 0 0kg、纯N 12～ 14kg、P2 O56～ 8kg。
Through multi-year and multi-variety plots plot test, location test and high yield sowing of different sowing dates and high yield demonstration, the appropriate amount of nitrogen fertilizer for high yield wheat was studied. The results showed that under the condition of middle-yielding soil, 560 to 500 kg of wheat were produced at 6 6 6 7 m 2, with continuous high yield and soil fertility as the prerequisite. Sixty-six thousand six hundred and sixty- ~ 14kg, P2 O56 ~ 8kg.