如何正确地选择和使用不同形态的氮肥品种,是果树栽培中值得研究的课题。不同形态的氮肥,施入土壤后都能被果树根系所吸收。但是,在不同的气候、土壤条件以及不同的农业技术措施下,它们各自显示的效果常有很大的区别。过去我国在果树方面对氮肥品种施用的研究很少.施肥存在着一定的盲目性。为了更合理地选择和使用不同形态的氮肥品种, How to correctly select and use different forms of nitrogenous fertilizers is a topic worth studying in fruit tree cultivation. Different forms of nitrogen fertilizer, applied to the soil can be absorbed by the roots of fruit trees. However, their effects often differ widely depending on the climate, soil conditions, and different agricultural techniques. In the past, there were few studies on the application of nitrogenous fertilizer varieties in fruit trees in our country. In order to choose and use different forms of nitrogen fertilizer more rationally,