HUO Yizhen,GUO Yanfen,HAN Cuilian,et al.Effects of Different Film Mulching Treatments on Soil Moisture， Heat and Spring Maize Yield[J].Research of Soil and Water Conservation,2016,23(05):124-128.
不同覆膜处理对土壤水热效应及春玉米产量的影响
- Title:
- Effects of Different Film Mulching Treatments on Soil Moisture， Heat and Spring Maize Yield
- Keywords:
- biodegradable film; soil temperature; soil moisture; yield of maize; Hetao Irrigation District
- 分类号:
- S152.8;S513
- 摘要:
- 为探讨生物地膜在农业生产中的适用性，采用田间试验的方法，设置了普通地膜覆盖、生物地膜覆盖及不覆盖3个处理进行对比研究，对3种覆盖方式下土壤温度、土壤水分变化规律及玉米生产性状指标进行了对比研究。研究结果表明：玉米生育前期，生物地膜保温、保墒效果显著，且与普通地膜处理差异不显著（p > 0.05），但均显著高于不覆膜处理（p < 0.05）；玉米进入生育中后期阶段，生物地膜降解破损，保温、保墒效果减弱，玉米生育中期3种覆盖方式下各土层土壤平均温度差异性显著（p < 0.05），生育末期，生物地膜保温保墒效果几乎丧失，土壤水热状况与不覆膜处理无显著性差异，且显著低于普通地膜覆盖（p < 0.05）；生物地膜与普通地膜相比玉米产量及生产性状指标差异不显著（p > 0.05），但均显著优于不覆膜处理（p < 0.05），平均较不覆膜增产19.48%和20.41%，水分利用效率高22.18%和22.56%。研究结果可为河套灌区可降解生物地膜在农业生产中的应用提供理论基础。
- Abstract:
- With the objective to figure out the availability of biodegradable film in agricultural production, three treatments including ordinary film, biodegradable film and non film were used to compare the effects of different film mulching treatments on soil moisture, heat and yield of maize based on field experiment. Results indicated that, during the initial growth stage of maize, the effects of heat and moisture preservation were significant when using the biodegradable film, there was no significant difference in comparison with those of ordinary film mulching(p > 0.05), besides, considered parameters of non film were the significantly least (p < 0.05). With in the mid-later stage of maize, the effects of heat and moisture preservation were weakened due to the degradation and damage of biodegradable film. Regarding all three mulching methods in the middle growth stage, significant differences were found in the mean soil temperature in all soil layers (p < 0.05). At the end growth stage, the effects of heat and moisture preservation of biodegradable film almost lost, no significant variations were found in the soil moisture and heat conditions, when compared to those of non film, corresponding parameters were remarkably lower than those of ordinary film (p < 0.05). Considering the yield and production of maize, no significant differences were observed between biodegradable film and ordinary film (p > 0.05), however, related parameters of both former methods were considerably higher than those of non film (p < 0.05), in this sense, associated mean yields were increased by 19.48% and 20.41%, respectively. The water use efficiencies were rose by 22.18% and 22.56%, respectively. The results are capable of providing theoretical basis for the application of biodegradable film in the agricultural production in Hetao Irrigation District.
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备注/Memo
收稿日期:2015-09-06;改回日期:2015-11-15。
基金项目:内蒙古教育厅自然科学资助项目（njzy263）；内蒙古自治区高等学校创新团队发展计划（NMGIRT-B1611）
作者简介:霍轶珍(1966-),女,内蒙古巴彦淖尔人,教授,主要从事节水灌溉技术研究。E-mail:hyz6998@163.com
通讯作者:郭彦芬(1965-),女,内蒙古巴彦淖尔人,副教授,主要从事节水灌溉技术研究。E-mail:gyf36188@163.com