吉林省黄泥河林业局,根据本地区实际情况,对LB-8型播种机的某些装置进行了改进,满足了播种技术要求。经试验和实际使用表明,该机改进后降低了生产成本,与改进前相比每亩减少生产费用24元,与人工播种相比每天减少生产费用144元;提高了生产效率,比原机提高效 Jilin Province Huangnihe Forestry Bureau, according to the actual situation in the region, some of the LB-8 planter some improvements to meet the sowing technical requirements. The test and actual use show that the aircraft improved to reduce the cost of production, compared with the pre-improvement 24 yuan per mu to reduce production costs, compared with artificial seeding 144 yuan a day to reduce production costs; improve production efficiency, higher than the original machine effect