In order to study high yield cultivation technology for Coix Lachryrma-jobi L.,and discuss the effect of planting density,fertilizer level,and number of seedlin
In order to find out the correlation between tobacco quality evaluation indicators in China’s traditional " moderate aroma" tobaccoproducing areas and simplify
This paper carries out a questionnaire survey on 30 quality inspection institutions at the level of the Ministry of Agriculture,and based on systematic analysis