马铃薯缺素症状及应对措施

Lacking Element Symptoms and Countermeasures of Potato

马铃薯喜肥,生长过程中需要氮、磷、钾、钙、硼、镁、硫、锌等多种养分,无论缺少哪种元素,都会出现相应的缺素症状。缺素症是生产中常见的一种病症,主要症状为叶片皱缩,导致植株生长态势弱化,严重影响产量和品质。本文分析了马铃薯的需肥特点,总结了马铃薯对各种养分的需求规律及缺素症状,最后提出了马铃薯的施肥技术,以期指导马铃薯种植的科学施肥、合理追肥,达到稳产增产、优质增收的目的。

Potato is fond of fertilizer.It needs a variety of nutrients,such as nitrogen,phosphorus,potassium,calcium,boron,magnesium,sulfur,zinc in the growth process.No matter which element is lacking,there will be corresponding deficiency symptoms.Deficiency is a common disease in production.The main symptom is leaf shrinkage,which leads to the weakening of plant growth and seriously affects the yield and quality.This paper analyzed the characteristics of potato’s fertilizer demand,summarized the laws of potato’s demand for various nutrients,the symptoms of lack of nutrients,and the fertilization technology of potato,in order to guide the scientific fertilization and rational topdressing of potato planting,and achieve the purpose of stable production,high quality and income.