缓释肥料在膜上灌技术中的应用研究进展

Progress in the research of the application of slow release fertilizer in film hole irrigation techniques

缓释肥料能缓慢释放养分,使养分释放与作物吸收养分的规律相一致,是解决膜上灌技术后期肥效供应不足问题的有效途经.通过对近年来国内各专家学者对缓释肥料新品种、生产工艺和应用方面的研究进行分析,发现缓释肥料种类出现多样化,其中木质素和壳聚糖等肥料都具有良好的开发应用前景.随着生产工艺日趋成熟,各种缓释肥料的应用也有大量研究.分析各方面研究存在的不足,提出一些建议,为宁夏地区缓释肥料在膜上灌技术中的应用提供依据.

Slow release fertilizers release nutrition stowty and me nutrient nutrition absorbing that provides an effective way to resolve the problem that the fertilizer effect is not enough in the later period of film hole irrigation. This paper reviews the research on new variety, production process and application of slow release fertilizers in recent years in China. Now, slow release fertilizer varieties are becoming to diversification, among them, the fertilizers such as lignin and chltosan etc. have potential development in the future. Along with production technology to be gradually developing various slow release fertilizers. Applications also have a great deal of problems to be researched. Summarizing and analyzing flaws, some suggestions are pointed out in order to provide evidence for the application of slow release fertilizers in the technique of film hole irrigation in Ningxia.