After the fruit trees have fallen, most fruit farmers will clean up the fallen leaves and burn them out of the garden. The purpose is to reduce the occurrence of pests and diseases in the following year. However, the leaves are rich in nutrients, which in turn causes a waste of resources. Reasonable use of fruit trees to return to the garden can not only improve the soil and fertility, but also eliminate the winter bacteria and pests in the leaves, reduce the amount of chemical fertilizers and pesticides. The specific operation method is:

1. After collecting deciduous fruit trees, collect the fallen leaves together with the weeds in the garden and stack them.

2. Before the fermentation fermentation, spray the leaves with 800% solution of 40% dimethoate EC, or 400-500 times solution of 80% dichlorvos EC, or 500-600 times solution of 20% fenvaler vinegar EC. After application, mix well and pile for 3 to 5 days, so as to kill the hidden insects and eggs. Then, the fallen leaves and the farm manure are concentrated and fermented at a ratio of 1: 1 to fully rot. If a small amount of superphosphate is added during simmering, the effect is better and the fertilizer effect is high.

3. Scientific return to the garden combined with plowing the soil in the orchard, fermenting the mixed fertilizer of fallen leaves and farm manure, and applying radial or circular furrow application to a depth of about 60 cm. According to tests, without cutting the roots of fruit trees, deep application is better than shallow application.

4. After the leaves have been irrigated and returned to the garden in a timely manner, in case of dry weather, they should be irrigated with water around the tree trays in time and covered with straw to protect the trees.

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As customers have higher and higher requirements for animal reproduction and animal disease diagnosis and treatment, traditional diagnostic methods such as visual inspection, stethoscope listening, thermometer inspection, and percussion and hammering can no longer meet the needs of animal husbandry production and veterinary clinics. Today, B-ultrasound is playing a big role in human medical diagnosis, and in the future, B-ultrasound will also play a role in animal medicine. We should promote the use of veterinary ultrasound scanner step by step according to the actual situation, popularize the knowledge of the use of veterinary ultrasound scanner, take this as an opportunity, and use it as a ladder to improve the level of veterinary practice in our country.

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