摘要
通过研究作物在土下覆膜条件下的自发性破膜出土效应,明确不同作物的自动破膜能力及其影响因素,为发展简约化农田地膜覆盖技术提供依据。采用田间试验与统计分析相结合的方法,明确了8种作物的自动破膜能力,其中小麦、玉米的自动破膜能力最强,各处理的相对出苗率都达98%以上;南瓜的自动破膜能力最弱。作物自动破膜效果易受覆盖材料影响,黑色地膜覆盖条件下的相对出苗率显著地高于白色地膜,采用黑色地膜更有利于作物自动破膜。在膜上覆土还能有效提高地膜的抑草效应,且2种地膜对杂草的抑制效果相近。作物自动破膜能有效减少地膜的人为和自然破坏,提高地膜覆盖的效果,是探索地膜应用新方向的有效种植方式。
By studying on the effect of spontaneously puncture of plastic-film mulching in the condition of the crops under the soil,defining different kinds of crops spontaneously puncture of plastic-film ability and its influencing factors,for the development of the farmland mulching plastic-film concise turn technology provides the basis,the author filed experimental in combining with statistical analysis was adopted and cleared the eight kinds of crops spontaneously puncture of plastic-film ability,including wheat,corn spontaneously puncture of plastic-film ability was the best,the treatment of relative germination rate could reach more than 98%.Pumpkin spontaneously puncture of plastic-film ability was the weakest.The effect of spontaneously puncture of plastic-film mulching was susceptible to the cover material.The condition of black plastic-film mulching relative germination rate was significantly higher than the white plastic,using black mulch was more advantageous to crop spontaneously puncture of plastic-film.In the membrane of overlying soil could effectively enhance the mulch and the suppression of weeds effect,two films on weed inhibitory effect was similar.Crop spontaneously puncture of plastic-film could effectively reduce the plastic sheeting ＇ s man-caused and natural damage,improving the effect of plastic-film mulching,it was to explore the effective application of new direction plantation.
出处
《中国农学通报》
CSCD
北大核心
2011年第12期244-248,共5页
Chinese Agricultural Science Bulletin
基金
国家科技支撑计划项目(2006BAD15B05)
河北省科技支撑计划项目(06220901D)
关键词
作物
自动破膜
出苗率
土下覆膜
crops
spontaneously puncture of plastic-film mulching
rate of germination
plastic-film mulching under the soil
