摘要
在浙江余杭、德清、海宁等地前后８年所开展的稻田水旱轮作的研究表明：稻田种植玉米等旱地作物，只要技术适当可获得明显的增产增收，水旱轮作对土壤物理性状的影响是显著的，表现在团粒结构的增加；孔隙和滞水特征明显改善；稻作时微团聚体增加。对化学性状的研究表明，水旱轮作可以促进有机质更新；减少稻田还原物质；改变稻田的次生潜育化现象。
The paddy-upland rotation experiments showed that with proper cultivation technique it was possible to obtain higher yield in upland season. There were considerable effects of crop rotation on soil physical characters. The total soil aggregate and micro-aggregate contents were increased clearly. The characteristics of soil pore and water holding were improved. The soil organic matter renew was promoted, the reduced matter was decreased and the reducing state was changed.
出处
《浙江农业学报》
CSCD
1995年第6期448-450,共3页
Acta Agriculturae Zhejiangensis
关键词
水旱轮作
作物
产量
土壤物理性状
Paddy-upland rotation
Crop yield
Soil physical and chemical characteristics
