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氮肥增效又有新招氮素化肥利用率低，一直是围拢农业生产的一个突出问题。下面介绍几种能显著提高氮肥利用率的新办法。尿素与草酸混施种植棉花时，每公顷棉田施用氮肥２００千克、磷肥１４０千克、钾肥６０千克、草酸５千克，可使氨化细菌数量下降６３％，有机矿化本数下...
Nitrogen efficiency and new use of nitrogen fertilizer low utilization rate, has been surrounded by agricultural production is a prominent issue. Here are some of the new ways to significantly improve N use efficiency. When urea and oxalic acid are mixed to grow cotton, 200 kg of nitrogen fertilizer, 140 kg of phosphate fertilizer, 60 kg of potash fertilizer and 5 kg of oxalic acid are applied per hectare of cotton field, the number of ammoniated bacteria can be reduced by 63%, and the organic mineralized number is lower ...