Zhao Qing, L. Xiaoli, Shang Yanyan
2012
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Journal
Guizhou Agricultural Sciences
Abstract
To select high efficiency plant surfactant and reduce the usage of pesticides,three kinds of surfactants,diethyl suberate(DESU),diethyl sebacate(DES) and tributyl phosphate(TBP),were used in this experiment,taking cuticle membrane of apple as materials,iron element including three surfactants in different density and different temperature was sprayed on cuticle membrane of apples,ultraviolet spectrophotometry was used for determination.The results showed that compared with iron nutrient fluid without surfactants,the cuticle's absorption to iron has increased greatly after adding the surfactant.Effects of TBP,DES and DESU were best when the concentration was 60 mg/kg,80 mg/kg and 100 mg/kg respectively,the promoting efficiency of the three surfactants at the temperature of 20℃ was the best and the effect of Fe absorption was DESDESUTBP.