The use of large amounts of chemical fertilizers promotes high-yield agriculture, but is also associated with a number of problems, such as low fertilizer utilization rates, soil acidification, and soil salinization. Comprehensive studies have shown that spraying chelated fertilizer on leaves can reduce the total amounts of fertilizer applied and achieve high fertilizer efficiency. Foliar fertilizer application after soil fertilization is an effective method to increase the contents of trace elements in crops and crop yield, and to improve the soil environment. However, the application of inorganic foliar fertilizer results in difficulties in nutrient absorption and migration in plants. Chelated foliar fertilizers are effective for improving element utilization efficiency, crop yield, and quality. The physicochemical properties, molecular structure, chelating strength, and chelating rate of chelating agents modulate the effects of application of nutrients. This study reviews and discusses the effects and problems associated with sugar alcohol–containing chelated fertilizers and foliar fertilizers.

中文翻译：

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叶面施肥的影响：现状回顾和未来展望

大量化肥的使用促进了高产农业的发展，但也伴随着化肥利用率低、土壤酸化、土壤盐渍化等一系列问题。综合研究表明，在叶片上喷施螯合肥，可以减少施肥总量，达到高肥效。土壤施肥后叶面施肥是提高作物微量元素含量和作物产量，改善土壤环境的有效方法。然而，无机叶面肥的施用导致植物养分吸收和迁移困难。螯合叶面肥可有效提高元素利用效率、作物产量和品质。理化性质，螯合剂的分子结构、螯合强度和螯合速率调节营养物质的应用效果。本研究回顾并讨论了与含糖醇螯合肥料和叶面肥料相关的影响和问题。