摘要
本文作者选择宁南山区彭阳县有代表性的三大农业生态区，针对地膜甘薯在不同农业生态条件下的适应性即高产性进行了研究。试验结果为：由于甘薯地膜复盖对土壤有显著的增温效果和保墒蓄水性能，因而在彭阳县三大农业生态条件下，均表现出较强的生态适应性，鲜薯亩产量普遍在3000公斤以上。地膜甘薯对山区不同类型的耕地也表现出了较好的适应性，其中川、台地产量及经济效益最高，源地、缓坡地次之，为地膜甘薯的生产价值和合理布局作了有益的探索。
The abaptability of sweet potato cultivated with plastic film covering was studied under different agricultural ecological conditions in three repesentative agricultural ecolgical zones of Pengyang County in southern mountain area of Ningxia. The results showed that the sweet potato adapted well and gave an averge yield of 4, 500kg/hm2 under three agricultural ecological conditions, because of the significant effect of temperature increase and soil moisture preservation from plastic film covering. The well adaptability of sweet potato cultivated with plastic film covering to different soil types in the mountain area was also observed. The highest yield and economic efficiency were obtained in the flat and platform fields, and the higher yield in the sloping field. The productive value and rational distribution of sweet potato cultivated with plastic film covering were also explored.
出处
《宁夏农学院学报》
1997年第4期1-5,共5页
Journal of Ningxia Agricultural College
关键词
宁南山区
生态适应性
甘薯
产量
效益
地膜覆盖
southern mountain area of Ningxia ecological adaptability sweet potato cultivated with plastic film covering yield efficiency
