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玉米从播种到成熟,经历若干个生育阶段和生育时期,在每个生育时期对养分的需求不同,总体呈先增长后下降的趋势,在大喇叭口期达到最大。根据玉米不同生长阶段的需肥特点,有针对性地施加追肥,是玉米高产与稳产的重要保障。本文对我国玉米追肥机械的研究现状进行梳理和总结,对不同种类追肥机械的工作原理和结构特点进行分析,并列出各类机型中具有代表性的机具和生产厂家。对我国玉米追肥机械的发展前景进行展望。
From sowing to maturity, maize undergoes several stages of fertility and growth period. The demand for nutrients is different at each growth stage, and generally increases first and then decreases, reaching the maximum at the big bell stage. According to different growth stages of corn needs fertilizer, targeted top dressing, corn is an important guarantee of high yield and stable yield. This paper sorts and summarizes the research status of corn top dressing machinery in our country, analyzes the working principle and structure characteristics of different kinds of top dressing machinery, and lists the representative machines and manufacturers in all kinds of models. Prospect of the Development Prospect of Corn Top Dressing Machinery in China.