水肥耦合对地膜甜菜产量和品质的影响  

Coupling Effects of Water and Fertilizer on Roots Yield and Quality of Sugar Beet of Plastic Film Mulching Cultivation

作　　者：武俊英[1] 张永丰[1] 张少英[1] 王锁琴 

机构地区：[1]内蒙古农业大学,呼和浩特010018

出　　处：《灌溉排水学报》2016年第4期87-91,共5页Journal of Irrigation and Drainage

基　　金：农业部重点科研项目(CARS-210304)

摘　　要：地膜覆盖条件下,采用正交设计试验L9(34),对不同水肥用量与甜菜产量、含糖率和产糖量进行回归分析,并分别建立了水肥因素与甜菜生产目标之间的回归数学模型。结果表明,在试验取值范围内,影响甜菜产质量的主要因素是水和钾。各因素间对产量和产糖量的影响显著(P<0.05),对含糖率无显著影响。各因素交互作用对甜菜产量的影响是,W(水)K(钾)互作影响最大,其次是N(氮)P(磷)和PK;对产糖量的影响最大的是PK互作,其次是WN和WP。综合分析产量、含糖率、产糖量,最佳组合为W2N2P2K3,即:灌水量1 737.0m^3/hm^2、氮素用量90.0kg/hm^2、磷素用量52.5kg/hm^2、钾素用量225.0kg/hm^2。Under plastic film mulching cultivation,field experiments using L9（34）orthogonal test design were conducted to analyze the relationships between irrigation amount/fertilizer application and yield,sucrose content and sucrose yield by means of regression analysis,and the regression models were established.Results indicated that,in the range of the experiment,the main factors affecting the yield and quality of sugar beet were water and potassium.The differences of roots yield and sucrose yield among different factors were significant（P〈0.05）,but difference of sucrose content among different factors was not significant.The greatest influence was the WK interaction in of all the factors on the roots yield of sugar beet;Secondly,the interaction effect was NP and PK;The greatest influence was the PK interaction in of all the factors on the sucrose yield of sugar beet;Secondly,the interaction effect was WN and WP.Comprehensive analysis of the effects of all treatments on sugar beet root yield and sucrose content and sucrose yield,the best combination was W2N2P2K3,namely：water application 1 737.0m3/hm2,nitrogen application 90.0kg/hm2,P_2O_5 application 52.5kg/hm2,K_2O application 225kg/hm2.

关 键 词：甜菜 地膜覆盖 水肥耦合 产糖量 

分 类 号：S566.3[农业科学—作物学] S274.4