Abstract:

Abstract　 The pots experiment results showed that the plant diseases control agent (Randy multi-state) with different concentrations of treatment can promote the growth of cucumber seedlings, especially in 150 fold the best results, root length, plant height, seedling fresh weight and dry weight were reached the maximum. Field trails showed that application of Randy multi-state could significantly increase the plant height of cucumber and make thicker stems, increase the leaf area and photosynthetic efficiency, extend green leaf function; to promote plant growth. Prevention and control of cucumber downy mildew, The relative control efficacy of 100 fold and 150 fold and 200 fold Randy multi-state was more significant than that of other chemical drugs and water, the 150 fold of effect of Best.