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通过对10多年麦田施肥试验及定位试验资料的处理,分析了不同产量水平的麦田施肥效益:有机肥与化肥配施可显著提高肥效,低产麦田需要的有机肥比例高于高产麦田,中产麦田的综合施肥效益最高。与10年前相比,麦田的需磷比例和磷肥肥效有较大提高。
Through the fertilization experiment and data processing of more than 10 years in wheat field, the fertilization efficiency of wheat field with different yield levels was analyzed. The combination of organic manure and chemical fertilizer could significantly increase the efficiency of fertilizer application. The proportion of organic manure needed in low yielding wheat field was higher than that of high yielding wheat field and middle yielding wheat field Integrated fertilization highest benefit. Compared with 10 years ago, the proportion of phosphorus demand in wheat fields and phosphate fertilizer efficiency increased significantly.