摘要
通过两年地膜不同覆盖方式的研究发现；地膜覆盖栽培的增产机理主要是提前满足了马铃薯有关生育阶段对地积温的要求。地膜覆盖也改善了土壤孔隙特征；并促进同化产物向块茎运转。在地膜上加盖天膜更能明显地促进群体发展，协调早熟与高产的矛盾。地膜覆盖对马铃薯产量潜力的影响不明显。
The field experiments of several different plastic film covering patterns were conducted from 1993 to 1994 The results showed that covering plastic film can satisfy the accumulated soil temperature demand of potato growth in early stages, which contributes to early maturity and high yield in covering plastic film potato cultivation Covering plastic film also improves soil pore characteristics and enhances tuber growth At the basis of sheeting plastic film on ridge surface canopying another plastic film can enhance the potato population development considerably and coordinate the contradition between the early maturity and high yield
出处
《浙江农业学报》
CSCD
1994年第2期102-106,共5页
Acta Agriculturae Zhejiangensis
关键词
生态效应
马铃薯
塑料覆盖
Physiological effects
Ecological effects
Covering plastic film
Potato
