The prevention of common pig diseases depends on the experience of veterinarian greatly due to complexity of piggery pestilence. The expert system for the proph
In this study,tobacco cultivar Nanjiang No.3 was selected as the experimental material to uptake,accumulation and subcellular distribution of Cd in tobacco.The
[Objective] To explore the mixture sowing effects and optimal mixture ratio of alfalfa and orchard grass. [Method] The alfalfa and orchard grass were sowed at d