2BSSF-3型浅松间歇施水播种机的试验研究  

Experimental study on 2BSSF-3 type surface tillage and irrigating-sowing machine

作　　者：杨有刚[1] 薛少平[1] 杨青[1] 党小选[1] 卢博友[1] 

机构地区：[1]西北农林科技大学机械与电子工程学院,杨凌712100

出　　处：《农业工程学报》2008年第2期136-139,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家"863"计划项目(2002AA6J3121-2)

摘　　要：为满足干旱半干旱地区少耕免耕间歇施水播种的要求,设计了2BSSF-3型浅松间歇施水播种机,并对田间试验进行了分析。结果表明:每次施水的平均灌水量为197.6 g时,水沿沟流动量少;每次施水的平均灌水量为387 g时,水沿沟流动量较大,且相邻水湿润区相接现象较严重,但种子下部水入渗深度明显增加。在两种灌水量条件下的试验结果为:设计点播距离300 mm,机组速度0.59 m/s时,平均点播距297.4 mm,合格率94.7%;平均每次点播粒数1.89,合格率97.2%,重播指数1.82%,漏播指数2.19%。机组速度0.98 m/s时,平均点播距311.2 mm,合格率92.1%;平均每次点播粒数1.33,合格率95.9%,重播指数1.51%,漏播指数2.67%。种子离水湿润中心距离的平均值都小于设计值20 mm,合格率96%;种水同位率99.7%。各项指标均满足农艺和设计要求。In order to meet the demand of watering sowing intermittently in stubble field without tillage or in field with surface tillage in add and semi-add regions, the 2BSSF-3 type surface tillage and irrigating machine was designed. The field test results were analyzed. The results show that when the average irrigating water is 197.6 g every time, the flowing amount of water along ditches is very little. The flowing amount of water along ditches is relatively greater when the average irrigating is 387 g every time, and the border of wet section had joined, but the deepness of water seeping under seeds increased obviously. The test results under two different conditions of water-irrigation amount show that when the irrigating-sowing machine working at the speed of 0.59 m/s, and the designed distance between seeds is 297.4 mm, the average distance between seeds is 297.4 mm, the eligible rate is 94.7%; the average number of seeds every time is 1.89, the eligible rate is 97.2%, the re-sowing index is 1.82%, and the no-sowing index is 2.19%. When the irrigating-sowing machine working at the speed of 0.98 m/s, and the average distance between seeds is 311.2 mm, the eligible rate is 92.1%; the average number of seeds every time is 1.33, the eligible rate is 95.9%, the re-sowing index is 1.51%, and the no-sowing index is 2.67%. The sowing deepness can meet the demand of design; the average distance ! between seeds and the center of wet soil is all less than the designed number 20 mm, the eligible rate is 96%,and the apposition rate of water and seed is 99.7%. Every index can meet the demand of agronomy and design.

关 键 词：免耕地 浅松 间歇施水播种机 

分 类 号：S223.2[农业科学—农业机械化工程]