As a special form of allelopathy,autotoxicity is common in cucurbits,and it is one of main factors inducing continuous cropping obstacles.Therefore,the autotoxi
As one of optical isomers of zeaxanthin,meso-zeaxanthin is an important ingredient of macular pigment.Compared with lutein and zeaxanthin,meso-zeaxanthin may di
In this paper,the practice of the past 30 years of reform and open policy was analyzed.A comprehensive evaluation model based on Analytic Hierarchy Process (AHP