生物降解地膜对甜菜生长发育及产质量的影响OA

[Objective]In order to screen the most suitable biodegradable mulch film for sugar beet planting in Inner Mongolia,[Methods]using non-film as the control(CK),three treatments were used:polyethylene mulch film(PE),white fully biodegradable water permeating mulch film(S1)and grey fully biodegradable water permeating mulch film(S2),and the effects of different mulch film on the growth,yield and quality of sugar beet were analyzed.[Results]The results showed that the three types of mulching film could promote the growth and development of sugar beet,improve the root-shoot ratio and increase the yield.A comprehensive analysis of growth,yield and sugar production showed that white biodegradable film(S1)had the best performance.Compared with CK,S1 promoted plant height by 13.66%-34.67%,leaf area index by 25.27%-49.67%during the whole growth period.During the key growth stages(the foliage rapid growth stage,root and sugar growth stage and sugar accumulation stage),the root-shoot ratio increased by 9.72%-18.33%,and dry matter accumulation in leaves,petioles and roots increased by 15.14%-21.61%,18.05%-23.01%and 13.40%-19.66%,respectively.Root yield and sugar yield were increased by 19.66%and 22.78%,respectively.[Conclusion]Therefore,in the production of sugar beet in Inner Mongolia region,white fully biodegradable water permeating mulch film is a kind of film mulching method with better effect for increasing sugar production and stabilizing sugar.