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[目的]探讨钾氮及有机肥投入对稻农超级稻生产经济的贡献.[方法]以辽宁、浙江、湖南3省8县市690户稻农2009年实际生产数据为基础,运用柯布道格拉斯(Cobb-Douglas)生产函数模型,将肥料及各品种的生产投入对超级稻生产的产量影响及关联度进行了模拟分析。[结果]有机肥使用的增加对超级稻产量增长作用显著;化肥使用量渐趋合理,但增产不增值;各肥料品种对超级稻产量的增长能力差异显著,增产能力为钾大于磷大于氮.[结论]根据研究结果,提出在当前超级稻生产中,要继续增施有机肥与钾肥的数量并控制化肥使用总量。
[Objective] The research aimed to discuss the contribution of K, N and organic manure inputs to the rice production super rice economy. [Method] Based on the actual production data of 690 rice farmers in 8 counties and cities of Liaoning, Zhejiang and Hunan provinces in 2009, (Cobb-Douglas) production function model, the fertilizer and the variety of production inputs super-rice production yield impact and correlation analysis. [Result] The increase of organic manure had a significant effect on the yield increase of super rice. The use of chemical fertilizer became more and more reasonable, but the increase of yield did not increase. The yield of super fertilizer was significantly different among different manure varieties. [Conclusion] According to the research results, it was proposed that in the current production of super rice, the quantity of organic fertilizer and potassium fertilizer should be continuously increased and the total amount of fertilizer used controlled.