阅读说明：本技术 一种大叶蔬菜专用糖醇螯合钾肥及其制备方法和应用 (Sugar alcohol chelated potassium fertilizer special for large-leaf vegetables and preparation method and application thereof ) 是由 颜冬云 谭慧婷 李鹏超 耿存珍 牛军浩 魏倩倩 李腾升 孙伟 崔玉照 于 2021-09-06 设计创作，主要内容包括：本发明属于肥料生产技术领域,涉及一种大叶蔬菜专用糖醇螯合钾肥,所用原料按如下重量份数组成：去离子水14-64.5份、糖醇10.5-18份、钾肥25-71份、螯合助剂1.5-5份和pH调节剂；适用于白菜、油菜、大叶莴苣、生菜、大头菜、甘蓝等叶菜类蔬菜的种植领域,解决了蔬菜增产所带来的肥料投入大,肥料利用率低,蔬菜口感不佳,经济效益难以提升等难题；其制备工艺简单,成本低廉,钾形态得以改善,能够有效提高钾的利用效率,增加单位面积蔬菜产量,改善蔬菜品质,降低肥料的投入量,并且使农户减少人力成本,有效改善农田次生盐渍化现象,实现大叶蔬菜产业的绿色健康发展,应用前景十分宽广。(The invention belongs to the technical field of fertilizer production, and relates to a special sugar alcohol chelated potassium fertilizer for large-leaf vegetables, which comprises the following raw materials in parts by weight: 14-64.5 parts of deionized water, 10.5-18 parts of sugar alcohol, 25-71 parts of potash fertilizer, 1.5-5 parts of chelating agent and pH regulator; the method is suitable for the planting field of leaf vegetable such as Chinese cabbage, rape, big-leaf lettuce, kohlrabi and cabbage, and solves the problems of large fertilizer input, low fertilizer utilization rate, poor vegetable taste, difficult improvement of economic benefit and the like caused by vegetable yield increase; the preparation method is simple in preparation process and low in cost, improves the potassium form, can effectively improve the utilization efficiency of potassium, increases the vegetable yield per unit area, improves the vegetable quality, reduces the input amount of fertilizers, reduces the labor cost for farmers, effectively improves the secondary salinization phenomenon of farmlands, realizes the green and healthy development of the large-leaf vegetable industry, and has a very wide application prospect.)