【摘要】 我国2 000多年的农业史表明:通过循环利用有机肥,可以使粮食生产持续发展,保持并逐渐改善土地生产力。非农肥料的最高效投入方式可以增加粮食产量。但在一些地区,出现农民只偏好化肥的趋势。长期使用化肥会导致土壤问题,也会给粮食质量和人类健康带来不利影响,有机肥的使用应当引起特别关注,以改善土壤性状、发展可持续农业。人类创造农业,农业养育人类,为使资源环境进入正确的循环轨道,人类是自然的一个组成部分,而不是自然的敌人。通过对湖南省南部山区红壤的长期试验,表明天然植被恢复对于水土保持极为重要,在阴山北部的观测数据也得到同样的结论。更多还原

【Abstract】 More than 2000 years history of agriculture in China has demonstrated that the grain yield could be sustained and the soil productivity could be maintained and gradually improved through recycling the organic manure. The input of non-agricultural fertilizers is in a most effective way to increase the crop yield. But there is a tendency in some regions that the farmers prefer only chemical fertilizer. The long-term application of chemical fertilizers will cause main soil problems and exert a bad influence on crop quality and human health. Particular attention should be given to the application of the organic manures so as to improve soil properties and to develop sustainable agriculture. Human creates agriculture and agriculture fosters the humankind. In order to make the resources and environments get into the right track of circulation, human is one component of nature, not the opposite. Based on the long-term experiments on red soil in hilly area in the southern part of Hunan province, the restoration of natural vegetation was extremely important for soil and water conservation. Also in the area of Yinshan in the northern part of China, the same results had been observed.更多还原