The low-yield mulberry garden mainly refers to the mulberry field with an annual output of less than 1,500 kilograms of mulberry leaves and less than 100 kilograms of fresh pods. To increase the yield of mulberry leaves, increase the production of fresh pods, and increase the yield of mulberry farmers, the low-yield mulberry garden must be transformed and reconstructed. The focus is on updating rejuvenation, checking for lack of replanting, fertility training, and scientific management. Specifically:

1. Mulberry Garden Excavation: Winter mulberry field excavation can not only improve the soil structure, enhance soil fertility, but also expose the wintering pests, eggs, and pathogens in the soil to be sunburned and frozen to death. The roots of the mulberry trees were cut off and they could trigger new roots. The excavation of winter mulberry fields is required to be carried out from December of the current year to the end of January of the following year. The whole park is required to be excavated. The depth of excavation is about 20cm, so that the rows are slightly deeper and the plants are slightly shallower.

2. Adding farmyard manure: Mulberry Garden will increase the quality of farmyard manure. First, it will improve the soil structure of mulberry orchard, increase soil permeability and increase organic matter content. Second, it will promote microbial activity in the soil and increase soil fertility. Increase soil temperature and reduce mulberry field damage. Mushi farmyard fertilizer is required to be no less than 3,000 kilograms, which is applied in combination with winter plowing and digging. The method of interlaced rotation is adopted in a unified manner. That is, the mulberry lines are excavated at an interval of 2030 cm deep and fertilized into a fertilization ditch with a width of 2030 cm. Cover the soil, the second year round rotation.

3, standard plastic trim, strengthen the tree to develop. In the first 10 days before the beginning of spring, Mulberry trees were cut and a low-drying boxing tree was developed. For a small amount of low-yielding old mulberry gardens, if Sandian is above 60cm, he must make up his mind to re-emphasize and re-build Mongken, so that the new Mulberry Boxing will develop around 50cm from the ground. When the mulberry field cuts and cuts a fist, cut off the weak branchlets, repair the dry piles, kill fists, and cut out to level off. The branches that were repaired, the dry piles, and the dead fists must be transported out of the mulberry gardens in time to make full use of them.

4, Sang Yuan Qingyuan. After the pruning and pruning, the dry branches, fallen leaves, and weeds on the surface of the mulberry field are further cleaned out of the mulberry field and composted or burned. Then the lime sulfur was used to seal the garden. Spraying was required to use a hand-operated sprayer. The entire garden was evenly sprayed, and the mulberry box was sprayed with spray from top to bottom. The active ingredient of lime sulfur mixture is calcium polysulfide that kills germs and pests, and can form a fine layer of sulfur protective film on Mulberry, so that the mulberry tree is not harmed by pathogens.

5, check the lack of replanting, update rejuvenation. For the mulberry field with less than 1200 active plants per mu, it is necessary to carry out supplementary planting. The required seedlings shall be solved by the farmers themselves, and in-site layering or cutting propagation may also be adopted. For mulberry fields with large slopes and severe water and soil loss, restore the planting belt and keep the water and soil.

6, science topdressing fertilizer. The amount of Urea urea 40 kg, 50 kg of calcium, compound fertilizer 50 kg. The spring, summer and autumn fertilizers were applied three times. Specifically for the spring fertilizer (urea 20 kg, calcium 20 kg, compound fertilizer 20 kg); summer fertilizer (urea 10 kg, calcium 15 kg, compound fertilizer 15 kg); autumn fertilizer (urea 10 kg, calcium 15 kg, Compound fertilizer 15 kg). Mix before applying each fertilizer.

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