典型高产区小麦玉米产量、肥料施用及土壤肥力状况

通过对浚县、温县、兰考3个高产区7个样点的小麦、玉米产量和施肥量情况进行调查，结果表明：小麦氮肥用量变化为210.9-376.5kg/hm^2，平均用量254.8kg／hm^2；磷肥用量变化为84-273.8kg／hm^2，平均用量183.1kg／hm^2；钾肥用量变化为0-355.4kg／hm^2，平均用量232.9kg／hm^2．玉米氮肥用量变化为433.5-556.9kg／hm^2，平均用量457.9kg／hm^2；磷肥用量变化为135-234kg／hm^2，平均用量211.3kg／hm^2；钾肥用量变化为90-253kg／hm^2，平均用量157kg／hm^．小麦用氮肥偏生产力为27.33-49.49kg／kg，平均40.03kg／kg；磷肥偏生产力为36.43-109.29kg／kg，平均50.68kg／kg；钾肥偏生产力为25.96-74.31kg/kg，平均44.09kg/kg．玉米上氮肥偏生产力为22.15-28.93kg／kg，平均25.94kg／kg；肥偏生产力为41.03-96.96kg／kg，平均60.07kg／kg；钾肥偏生产力为63.38-145.44kg／kg，平均83.07kg／kg．7个调查样点土壤有机质、全氮、碱解氮普遍较高，但速效磷、钾差别较大．超高产攻关田与农民生产田比较，前者土壤速效磷和速效钾明显高于后者，土壤有机质、全氮、碱解氮也比后者高，但差别较小．

Wheat and Corn Production,Fertilizer Application and Soil Fertility Status of Typical High-Yield Areas

Wheat,corn production and fertilizer application of 7 samples in Xunxian county,Wenxian county and Lankao county of three high-yield areas were investigated. The results showed that the amount of nitrogen fertilizer on wheat is changed from 210.9 to 376.5 kg/hm2,averaged 254.8 kg/hm2;Changes in the amount of phosphate fertilizer is in 84~273.8 kg/hm2,the average amount is 183.1 kg/hm2;Changes in the amount of potassium is in the 0~355.4 kg/hm2,the average amount is 232.9 kg/hm2;Changes in the amount of nitr...