地膜覆盖对滴灌甜菜生育进程及产量的影响  

Effect of Plastic Mulching on Growing Stage and Yield of Drip Irrigated Sugar Beet

作　　者：樊华[1] Koibakov S.M. 帕尼古丽[1] Nurabayev Daulen 林凤[1] 马富裕[1] 

机构地区：[1]石河子大学农学院,新疆石河子832003 [2]KazakhstanTarazStateUniversity,Taraz080000

出　　处：《新疆农业科学》2014年第4期633-638,共6页Xinjiang Agricultural Sciences

基　　金：国际合作项目(2010DFA32520);国家自然科学基金项目(31260299);教育部科学技术研究重点项目(212201)

摘　　要：【目的】分析地膜覆盖对滴灌甜菜产量和品质的调控效应,为干旱区滴灌甜菜高产优质生产提供理论依据。【方法】以新甜12号为研究对象,进行破坏性取样,调查露播和覆膜滴灌甜菜干物质积累、根冠比、产量以及块根含糖量指标。【结果】与露播滴灌甜菜相比,地膜覆盖的增温效应使滴灌甜菜提前10 d结束叶丛快速生长期,LAI峰值提高1.84,在延长块根糖分增长期的同时,形成适宜的根冠比。膜下滴灌甜菜单产和含糖量分别较露地滴灌甜菜提高0%和17%。【结论】与露播滴灌相比,覆膜可显著增加滴灌甜菜块根含糖量,但是对甜菜产量无明显影响。[Objective] Plastic mulching has been applied to sugar beet cultivation in Xinjiang currently,while there are presently very few reports concerning its effect on root development and sucrose accumulation.This study aims to provide a theoretical basis for the standardized cultivation of drip irrigated sugar beet with plastic mulching sugar beet in Xinjiang.[Method] Xintian No.12 was chosen,and dry matter accumulation and allocation,root-shoot ratio,root yield and sucrose concentration were detected every 10 days after seedling of sugar beet to study the effect of plastic mulching and open field cultivation on drip irrigated sugar beet development.[Result] Plastic mulching could accelerate leaf growth rate and LAI by 10 days and 1.84,respectively,which enlarged the root growth stage and developed stuitable root / shoot ration of ratio of the drip irrigated sugar beet.This enlarged root growth stage and developed suitable root/shoot ratio of drip irrigated sugar beet.So the yield and sucrose concentration of drip irrigated sugar beet with plastic mulching could be increased by 0% and 17%,respectively than those of the sugar of open field cultivation.[Conclusion] Compared with open field cultivation,there was significant increase of root sucrose concentration while no effect on root weight of drip irrigated sugar beet with plastic mulching.

关 键 词：覆膜 滴灌 甜菜 

分 类 号：S566.3[农业科学—作物学]