摘要
在宁夏六盘山半干旱冷凉区，采用覆膜栽培马铃薯，产量达４５１８６ｋｇ／ｈｍ２，较常规露地栽培增产４９．８％。经田间取样测试分析，其增产原因是：覆膜成倍地促进了马铃薯对Ｎ、Ｐ、Ｋ养分的吸收，改善了地温和土壤物理性状，并给马铃薯正常生长提供了适宜含水土体，从而为高产创造了一个良好的土壤环境条件。
In Luopan mountain semiarid cold region of Ningxia, the yield of potato is up to 45.186 t/hm 2 by the adoption of film mulching, which increased by 49.8% compared with conventional cultivation. Based on the field test and analysis, the reasons for the improved production are that film cover condition can enhance potato's absorption of nitrogen, phosphorus and potassium nutritious elements and improve soil temperature and other physical characters, and supply potato with suitable moisture soil body for its normal growth. Thus creates a good soil environmental condition for high yield production of potato.
出处
《干旱地区农业研究》
CSCD
北大核心
1998年第3期59-63,共5页
Agricultural Research in the Arid Areas
基金
宁夏自治区科委"宁南阴湿低温区农业增产技术体系"项目
关键词
马铃薯
覆膜栽培
增产机理
半干旱冷凉区
potato, cultivation with mulching, yield increase mechanism, semiarid cold region
