这不是电话号码,却胜似电话号码,因为它已经告诉了你玉米精少量机播的好处——四省四均两保两抗两增。 1975年以后几年,吉林省伊通县虽然粮食产量连年增长,但是经济效益却不高。什么原因?主要是投资大、成本高。自这个县的农机局1981年开始试验推广玉米精少量机播以来,这种情况逐渐有了变化,随着推广面积的扩大,经济效果越来越显著。要知道,这个半山区县135万亩耕地中,85%是旱地,且旱地玉米种植面积占旱地的70%以上(每年90万亩左右)。不能不说,提高玉米的种植效益在该县的农业经济中至关重要。 This is not a telephone number but a telephone number because it has already told you the benefits of a small amount of maize sowing - two more in four provinces, two in two. In the years after 1975, the grain yield in Yitong County of Jilin Province increased year by year, but the economic benefits were not high. What are the reasons? Mainly large investment, high cost. Since the County Bureau of Agricultural Machinery experimented and popularized a small amount of corn sowing machines in 1981, this situation has gradually changed. With the expansion of the area for promotion, the economic effect has become more and more obvious. We should know that 85% of the 135 million mu of arable land in Mid-levels County are dry land, and dry acreage accounts for more than 70% of the dry land (about 900,000 mu per year). One can not but say that increasing the efficiency of planting corn is crucial in the county’s agricultural economy.