Under-mulch greenhouse is a new component of an ecosystem in mulched cotton field. It improved the ecological environment of cotton seedlings greatly,thus showing a significant role in promoting stand establishment and lint yield in saline fields.
深播覆膜使棉田生态系统因增加膜下温室而成为4层次结构,改善了棉花成苗和幼苗生长的环境,促进了成苗和增产。
参考来源 - 盐碱地深播覆膜的生态效应及对棉花成苗和产量的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
Profile (flatness) : after the establishment of coiling tension, there shall be no wave in the F4 mill stand exit in visual.
板形(平直度)：在卷取张力建立后，F4机架出口带材目测无波浪。
There are a number of planting techniques including under-planting which yields a multi-story stand quickly, while allowing the establishment of shade-tolerant species.
这里有几种植被栽植技术，如林下栽植，能够很快形成复合林分，同时适宜耐阴物种的生长。
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