论文部分内容阅读
农业生产的实质是能量的转换过程,要获得高额稳定的产显,必须有相应的物质投入。当今农业技术的发展表明,合理增施肥料是提高作物产量的重要措施。随着化肥工业的发展,化肥供应和施用水平不断提高,1982年我区化肥共销售282万多吨(标准肥),平均每亩耕地有化肥142斤,每播种亩78.2斤。虽然平均用量不算很低,但由于分配和施用水平的不平衡,高的如北流县每亩耕地达343.1斤,低的如天峨县每亩仅22.8
The essence of agricultural production is the process of energy conversion. In order to obtain high and stable output, it must have the corresponding material inputs. The development of agricultural technology today shows that the rational application of fertilizers is an important measure to increase crop yields. With the development of fertilizer industry, the supply and application of chemical fertilizers have been continuously improved. In 1982, a total of more than 2.82 million tons of fertilizers were sold (standard fertilizers) in our region. On average, 142 kg of chemical fertilizer per acre of cultivated land per mu was 78.2 kg. Although the average amount is not very low, due to the imbalance of distribution and application level, the high such as Beiliu County reached 343.1 kg per mu of arable land, and the low was only 22.8 mu per mu in Tian’e County