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一、追肥器结构:追肥器用白铁皮制成,全长1米,重量3斤。由装化肥部分、流肥管、开穴铲组成。装化肥部分,全长约40厘米,装肥筒下端与活塞接连处为卡腰喇叭口,便于溜化肥和封闭活塞。流肥管,全长约70厘米,套在装化肥部分下端,下口以扁形为好,长1厘米,阔3厘米,以免化肥流到穴外;安装时,流肥管下口一定要比限位翅稍高些,以免向地下刺入时被土堵塞。开穴铲,全长10厘米,用薄钢皮制成,后面用一条铁皮、
First, the top dressing structure: top dressing made of white metal, a total length of 1 m, weight 3 kg. By the part of fertilizer installed, the flow of fat, open shovel composition. Installed part of the fertilizer, a total length of about 40 cm, the lower end of the installed fertilizer and the piston connected to waist waist bell, easy to slide fertilizer and closed piston. Flow of fertilizer, a total length of about 70 cm, set in the lower part of the installed fertilizer, the mouth to flat as well, 1 cm long, 3 cm wide, so as to avoid fertilizer flow point; installation, the flow of fat under the mouth must be better than Limit wings slightly higher, so as not to be stabbed into the ground when blocked by earth. Open hole shovel, a total length of 10 cm, made of thin steel, followed by a tin,