可降解地膜覆盖对渭北旱塬土壤水热及玉米产量的影响  

Effect of Degradable Film on Soil Temperature,Soil Moisture and Maize Yield in Weibei Highland Area of China

作　　者：薛源清 张俊丽[1] 杨圆圆[1] 刘王涛 刘晓花 景小丽[1] 薛菁[1] 

机构地区：[1]渭南市农业技术推广中心,陕西渭南714000 [2]澄城县农业技术推广中心,陕西澄城715200

出　　处：《西北农业学报》2017年第3期363-368,共6页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：为研究可降解地膜对渭北旱塬土壤环境及作物生产的影响,设置厚0.008mm可降解地膜、厚0.006mm可降解地膜、普通地膜、露地对照4个处理,分析各处理对玉米田土壤温度、水分及产量和相关因子的影响。结果显示,播种后0~80d,3种覆膜处理5、10cm土壤温度和0~30cm土壤水分显著高于露地对照,且厚0.006mm可降解地膜和普通地膜间差异不显著(P>0.05);同时,两处理产量分别达到10 020.00kg/hm^2和10 245.60kg/hm^2,两者间差异也不显著(P>0.05),但均明显高于厚0.008mm可降解地膜处理和露地对照。说明,厚0.006mm可降解地膜增温保墒及增产效果与普通地膜相当,可在实践中应用。To clarify the relationship between soil environment and crop yield in Weibei highland area of China,and effect of degradable film on soil temperture,soil moisture,maize yield,its relevant factors were studied through comparing plastic film with it in open field.The results showed that soil temperature at depth of 5 cm and 10 cm and soil moisture at depth of 0-30 cm under the treatments of 3 kinds of plastic film mulching were higher than that in open field.A thickness of 0.006 mm degradable film had no significant difference comparing with normal film（P＞0.05）.There were no significant difference in yield of maize under degradable film （10 020.00 kg/hm2） and normal plastic film （10 245.60 kg/hm2）,but their yield were significantly higher than degradable film （0.008 mm） and open field treatments.The results indicated degradable film （0.006 mm） had similar effect with normal plastic film in terms of temperature-increasing,soil moisture conservation and yield improvement.

关 键 词：可降解地膜 土壤水分 土壤温度 产量 玉米 渭北旱塬 

分 类 号：S513[农业科学—作物学] S152