摘要
为研究旱作条件下生物降解地膜对马铃薯生长及水分利用效率的影响,以‘紫花白’作为试验材料,设置裸地（CK）、聚乙烯塑料地膜、生物可降解A膜、玉米秸秆、生物可降解B膜5种覆盖材料来研究生物可降解地膜对马铃薯耕层土壤温度、土壤含水量以及产量的影响。结果表明,与传统裸地（CK）相比,聚乙烯塑料地膜、生物可降解A膜、玉米秸秆、生物可降解B膜4种覆盖材料处理下耕层土壤（0～25 cm）日平均温度提高2.02、1.67、1.40、1.47℃;各覆盖材料均可提高土壤含水量,聚乙烯塑料地膜、生物可降解A膜、玉米秸秆、生物可降解B膜覆盖耕层土壤（0～25 cm）平均含水量提高3.12%、2.00%、1.92%、2.48%;各覆盖材料较对照马铃薯块茎产量增加6.25%、21.18%、17.07%、31.71%。试验结果表明,生物可降解地膜覆盖可以提高土层的温度、土壤含水率以及马铃薯产量,在不同覆盖方式中,生物可降解B膜覆盖效果最好。
To study the influence of biodegradable mulch on potato growth and water use efficiency under dryconditions,‘Zihuabai＇was used as experimental material, five covering including the bare land（CK）,polyethylene plastic film covering, biodegradable A film, corn straw and biodegradable B film were set to studythe effects of ecological film on soil temperature, soil water use efficiency and the yield of potato. The resultsshowed that： compared with that of traditional bare land（CK）, the average temperature of top soil（0-25 cm） ofpolyethylene plastic film, biodegradable A film, corn straw, biodegradable B film increased by 2.02, 1.67, 1.40 and 1.47℃, respectively; all the mulching materials could improve soil moisture content, under polyethyleneplastic film, biodegradable A film, corn straw, biodegradable B film, the water moisture content increased by3.12%, 2.00%, 1.92% and 2.48%, respectively. Compared with that of bare land, the tuber yield ofpolyethylene plastic film, biodegradable A film, corn straw and biodegradable B film increased by 6.25%,21.18%, 17.07%, 31.71%. These results suggested that the biodegradable membrane mulching could improvesoil temperature, soil moisture content and the yield of potato, biodegradable B film performed the best amongdifferent ways of mulching.
出处
《中国农学通报》
2016年第24期97-102,共6页
Chinese Agricultural Science Bulletin
基金
榆林市科技局农业公共项目"马铃薯‘生态地膜’高效节水栽培技术研究与示范"(Ny13-13)
陕西省重点科技创新团队建设计划"陕北农业节水综合研究-创新团队"(2013KCT-29)
