今年3月下旬,湖南省在长沙召开了水稻播种器试播现场会,与会人员和参观群众认为,用播种器播种,一次播一厢,比手播快且较均匀。据测定,在每亩秧田播种250斤左右时,播种0.1亩,用播种器只要1分钟时间,手播则需要10分钟以上。播种器制造简便,可就地取材,造价低廉。播种器为长方形,与筛砂的钢丝筛相似(如图),用较薄的木板制成长方形木框,木框长与秧厢同,一般长4尺,宽1尺,高0.7尺。木框底部每隔5寸安 In late March this year, Hunan Province held a field trial of rice planter pilot trials in Changsha. Participants and visitors believed that sowing was carried out with a seeder. It has been determined that when sowing about 250 kg per acre of seedlings, sowing 0.1 mu, with a seeder as long as 1 minute time, hand-broadcast it takes more than 10 minutes. Sowers easy to manufacture, available locally, low cost. The sowing device is rectangular and similar to the screen sieve of steel mesh (pictured). The planters are made of rectangular wood frame with thin wood board. The length of the wood frame is 4 feet long, 1 foot wide and 0.7 feet high. Wooden box at the bottom of every 5 inch security