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利用天然沸石具有强吸附能力和离子交换能力的特性,将沸石与化肥混合,以提高化肥利用率。掺混沸石后,在盆栽条件下,小麦对尿素氮的利用率提高4.1%~5.5%,碳铵氮利用率提高6.6%,在田间条件下玉米、水稻对氮肥的利用率提高8.1%~10.3%,磷肥利用率提高6.0%~6.3%。沸石对铵的吸附量为151.2~162.0cmolkg-1,其中70.9%~95.9%为可解析态铵。
Use of natural zeolite has strong adsorption capacity and ion exchange capacity of the characteristics of the zeolite and fertilizer mixed to improve fertilizer utilization. After blending zeolite, the utilization rate of urea nitrogen in wheat increased by 4.1% -5.5% and the utilization rate of ammonium bicarbonate increased by 6.6% under potted condition. The utilization of nitrogen fertilizer by maize and rice under field conditions The rate of increase of 8.1% ~ 10.3% and the utilization of phosphate fertilizer increased by 6.0% ~ 6.3%. The adsorption capacity of zeolite to ammonium is 151.2 ~ 162.0cmolkg-1, of which 70.9% ~ 95.9% is ammonium.