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￣（１５）Ｎ示踪试验表明，有机无机肥配施促进了有机叉的矿化和小麦对有机氮的吸收利用，基施氮肥主要用于营养器官的形成，返青追肥主要用于生殖器官的形成。有机无机氮肥配施提高了总氮生产效率。配施处理小麦对磷素的吸收总量稍高于单施无机氮肥处理，磷素在籽粒中的分配率稍低于单施无机氮肥处理是导致磷素生产效率下降的重要因素。有机无机肥配施提高小麦产量的同时也培肥了地力，是小麦高产稳产的重主措施之一
~ (15) N tracer test showed that the combination of organic and inorganic fertilizers promoted the mineralization of organic fork and the absorption and utilization of organic nitrogen by wheat. Nitrogen-based fertilizer was mainly used for the formation of vegetative organs. Rejuvenation and top dressing was mainly used for reproductive organs form. The combination of organic and inorganic nitrogen fertilizer increased the total nitrogen production efficiency. The total amount of phosphorus absorbed by the wheat was slightly higher than that of the single application of inorganic nitrogen fertilizer. The distribution rate of phosphorus in the grain was slightly lower than that of the single application of inorganic nitrogen fertilizer, which was an important factor for the decrease of phosphorus production efficiency. Organic and inorganic fertilizers to improve wheat yield at the same time fertilizing fertility, wheat is one of the main production of high and stable yield