可降解地膜的性能及在北疆棉田上的应用  

Characteristics of Degradable Plastic Film and Application in North Xinjiang Cotton Field

作　　者：战勇[1] 魏建军[1] 杨相昆[1] 张占琴[1] 

机构地区：[1]新疆农垦科学院作物研究所,新疆石河子832000

出　　处：《西北农业学报》2010年第7期202-206,共5页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家科技支撑计划"干旱半干旱区土壤面源污染防治关键技术研究与示范"项目(2007BAC20B00);中"干旱半干旱区农田残膜污染综合防治关键技术研究与示范"课题(2007BAC20B01)

摘　　要：比较研究了7种可降解地膜的性能及在北疆棉田的应用效果。结果表明,7种地膜的拉伸性能均达GB 13022-91中优等品标准,可通过机械铺设;BX90和BX120的加速破裂期为铺设后60~70 d,单位面积破损率BJ90〉BX90〉BJ120〉BX120,达28.3%~58.3%,质量损失率BJ90〉BJ120〉BX90〉HY90CD〉BX120,达18.20%~46.5%;对苗期株高增长率、叶片数增长无明显影响,对蕾期株高、叶片数、第一果枝节位及第一果枝高度影响无明显差异,但棉花结蕾数上明显优于CK,对棉花产量的影响未达显著水平。综合来看,BX90和BX120最具推广价值。We valued the characteristics of seven kinds of degradable plastic film and their application effect on cotton field in North Xinjiang.The result showed that degradable plastic films,ranked high-quality products by its tensile properties according to national standard GB 13022-91,can be spread by machine successfully;the quickening split stage of BX90 and BX120 were 60-70 days after spread,and the rate of breakage per unit area,28.3%-58.3%,was in the order of BJ90BX90BJ120BX120,and the rate of weight-losing per unit area,18.20%-46.5%,was in the order of BJ90BJ120BX90HY90CDBX120;there was no obvious effect on the increase of plant height and number of leaves in the stage of seedling and there was no obvious effect on the plant height,number of leaves,first fruit node,height of first fruit branch in the stage of budding,but number of buds were obviously higher than that of CK,and there was no obvious difference among treatments.Synthetically,BX90 and BX120 had a preferable using prospect in the cotton field.

关 键 词：可降解地膜 北疆 棉花 应用效果 

分 类 号：S562[农业科学—作物学]