The enterprise credit of BtoC e-commerce depends on the quality of commodity-organizing proper BtoC commodity,while the efficiency of BtoC e-commerce relies on the efficiency of online retail and logistic delivery.

A Construct of comprehensive appraise index system on commodity quality of rice( Oryza sativa L.ssp.keng ting);

In the light of determining the commodity quality of the 54 main paddy varieties along the Yellow River valley,the comprehensive appraisal was conducted by the grey situation decision theory of single target on their commodity quality which includes two aspects of appearance(chalky grain,chalkiness etc.

In the light of determining the commodity quality of the 24 fetching in jponica rice along the Yellow River valley, the comprehensive appraisal of them was advanced by the grey situation decision theory of single target from the commodity quality.

Results showed that:(1) combined application of N,P,K and Zn(OPT treatment) on lotus root improved its growth,development and the commercial quality with an average fresh yield of 37136 kg/hm2,and omission of N,P,K and Zn fertilization from OPT decreased yield by 37.

The different views of Non-mechandise,special merchandise and merchandising of the journals reflects the different property of the journals at different stages of its development.