论文部分内容阅读
我省浅山地区土地广阔,人均耕地4.6亩,约有1200万亩“三荒”地有待开发利用。年降雨量250—400毫米,雨水少且分布不匀,7—9月约占全年降水量的68％。生物作用微弱,干旱和水土流失严重。粮食增产缺肥,发展牧业缺草。农业长期摆脱不了广种薄收的被动局面,常年亩产只有八、九十公斤,低而不稳,生产上的恶性循环尚未逆转。为了积极而有效的培肥土壤,增加农、牧产出收益,我们根据本区的自然特点,在当地轮
Shallow mountainous areas in our province a vast land, arable land per capita 4.6 acres, about 12 million mu of “three shortage” to be developed and utilized. Annual rainfall of 250-400 mm, less rainfall and uneven distribution, July-September accounted for about 68% of the annual rainfall. Biological function is weak, drought and soil erosion serious. Increased food shortage of grain, the development of animal husbandry lack of grass. For a long time, agriculture can not get rid of the passive situation of broad and thin income. Only 8 and 90 kilograms of mu per year are produced, which is low and unstable. The vicious cycle of production has not yet reversed. In order to actively and effectively fertilize the soil and increase the income from farming and animal husbandry, according to the natural characteristics of the area,