| 摘要: |
| 继续大力发展饲料粮生产是我国今后种植业结构调整的一个方向。研究结果表明, 1993年我国小麦、水稻的播种面积仅占总播种面积的41%,占粮食总产量的62%.今后一段时间的调整方向不是继续降低细粮面积和产量,而是着重于选育和改良作物的饲用品种,结合发展复种,灵活机动地发展饲料饲草生产。通过粮饲产品结构性过剩机制的初步探讨,对以往交替出现的卖粮难、卖肉难现象作了合理解释,并说明我国粮食总量过剩现象是不存在的。 |
| 关键词: 持续发展,种植业,饲料作物,结构调整 |
| DOI： |
| 分类号:F326.1 |
| 基金项目: |
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| Feed Crop Problem in Crop System Adjustment in China |
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| Abstract: |
| To increase crop production is a major approach of the crop system adjustment in China.It is shown that the planting area and the yield of wheat and rice decreased to 41% of the total planting area and 60% of the total grain yield respectively in 1993.Therefore,the crop system adjustment should not continue to concentrate on reducing the planting area and the yield of grain crops,such as wheat and rice;but should focus on crop breeding and variety improving in future.Meanwhile there still exists a great potential in feed crop production in cooperation with the crop system adjustment.Through the analysis of the surplus mechanism of grain and feed production,the alternately-appearing phenomena of grain surplus and meat surplus are explained reasonablly and no existence of grain surplus is proved in China. |
| Key words: sustainable development, crop production,feed crop,structure adjustment |
