玉米的生长期较长,在小麦、玉米轮作地区收了小麦,再播玉米,由于季节关系,玉米还未成熟,就为播冬小麦腾茬。为了保证玉米的足够生长期,达到增产的目的,近年来不少地区在头年播种小麦,在收割前,将玉米播到地里,搞小麦玉米套种。过去,在麦棵里点播玉米要需三人,费时、费力、质量差、工效低。为了解决这个问题,我县峡窝公社观沟大队五生产队,在反复实践的基础上,制成麦棵玉米点播器。用它可在麦棵里点播玉米,豆子等作物,且只需一人,一天可播一亩地。这种农具构造简单,价格低廉,一般生产队都可制作,受到贫下中农的欢迎。它由立柱、前后活门、种子斗、铲式挖坑器、联动杆等组成。种子斗侧面开一长检视孔,联动杆用8#铅丝制成。工作原理:当把杠杆向上搬动时,通过联动杆、杠杆等机构,使后活门向上,打开种子室后门,种子室内存留的2～3粒种子在重力的作用下,从后门落到输种管里,顺输种管掉到挖坑器挖好的坑里。当后 Corn growth period is longer, in the wheat, corn crop area received the wheat, then sow the corn, due to the season, corn is not yet ripe, it is winter wheat Teng crop. In order to ensure enough growth period of maize and achieve the purpose of increasing production, in recent years many areas planted wheat in the first year and before sowing, sowing corn in the ground and engaging in interplanting of wheat and corn. In the past, in the McCormick corn on the need for three people, time-consuming, laborious, poor quality, low efficiency. In order to solve this problem, I County Gully commune Guogou Brigade five production teams, on the basis of repeated practice, made of corn-corn on-demand device. Use it to sow corn, beans and other crops in the wheat, and only one person a day can sow an acre of land. This kind of farm implements is simple in structure and low in price, and can be produced by the general production team and welcomed by the poor middle peasants. It consists of columns, before and after the valve, seed bucket, digging pits, linkage rod and other components. The side of the seed bucket to open a long view hole, linkage rod made of 8 # wire. How it works: When the lever moves upward, through the linkage lever, lever and other agencies, so that the rear door up, open the seed room back door, seed room remaining 2 to 3 seeds under the action of gravity, fell from the back door to the input In the tube, the tube is dropped into the pit dug well. After