The low-yield mulberry gardens are mainly caused by poor management, excessive ageing, disorderly trees, poor varieties, and lack of ponds. We should, according to the causes, make targeted reforms and always maintain the lush growth of mulberry trees. To fill the shortage of ponds to view the number of acres of plants required to reach 1800 strains, lack of plants to replant the lack of ponds, to use 2 years of hybrid mulberry planting, due to strong rooting, vigorous growth, easy to survive, to survive after grafting improvement. Variety structure and improved varieties cannot be produced in disorder. The good variety structure can not only meet the needs of small silkworm leaf nutrition, but also meet the needs of large silkworms for large-scale leaf use. The highest yield of mussel leaves is produced, and the variety needs to be used for comparative experiments. . The older trees are rejuvenated and the poorly managed low-yield mulberry fields must be rejuvenated, and the method still uses sawdust buds. The construction of irrigated land will lead to poor growth of mulberry trees due to long-term waterlogging, yellowing of mulberry leaves or droughty plots to make low-yielding mulberry fields, dredge ditches, raise ditch and cultivate soil, and conduct systematic construction of mulberry irrigated land. Carry out comprehensive management of gardens, roads and water. To improve the soil, the mulberry field with poor soil quality, shallow soil, low organic matter content, and high yield, should do long-term work of soil improvement, replant farmyard fertilizers, and vigorously plant green manure to gradually increase production. It is forbidden to use leaves excessively, especially in late autumn silkworm leaves more than 5 leaves for photosynthesis. Using spring cutting to cultivate tree vigor, it is not appropriate to use “25†(spring shear) to cause decline of tree vigor. Cultivating trees should be used to shape the invisible mulberry trees with short branches and short studs. Clear the weak branches of dry piles, and choose to keep the strong branches to develop. Adhere to the comprehensive prevention and control techniques of mulberry diseases and pests. Digital Imaging Equipment,X-Ray Equipment And Accessories,16 Slice Ct Scan,Ct Scanner Shanghai Rocatti Biotechnology Co.,Ltd , https://www.shljdmedical.com