Autumn and winter are the best times for the market to be listed on the market. Most farmers adopt the method of dredging and muddying the entire pond. This method has great labor intensity and damage to the yellow locust, destroying the ecological and structural environment of the Dianchi Lake, and damaging the production in the coming year. A quick and safe trapping method is introduced. Batch fishing. Trapping method with straw mat: Thicker new straw mat or turfgrass is soaked in 5% lime solution for 24 hours, then rinsed with 2% bleach solution to remove alkali, and set for 2 days and then spread into Dianchi mud ditch. Sterilize straw and wheat straw with a thickness of about 5 cm, and spread a second layer of straw mats. Spread a layer of dry straw about 10 cm thick. When the water temperature drops below 13C, gradually drain water to a depth of 6-10 cm. At 8-10C, a layer of rice straw about 20 cm thick is added to the mud ditch. When the temperature drops significantly, the water is thoroughly drained and the astragalus is introduced under the grass mat and between the two grass mats. Note: Capped according to freezing conditions. When collecting, do not remove the straw at one time. A small amount of fishing. You can dig a pit about 30 centimeters deep in the corner of the pond and put fermented straw in the pit. Fermented straw preparation method: (1) fermented yeast recipe: 20% wheat bran, 30% dry cow dung, 30% mealworm grains, 20% distiller's grains, 3% brewer's yeast (can also be put). (2) Production method: The semi-dry rice straw that has been disinfected and alkali-free is mixed with a starch binder (which can be replaced by rice soup) so as to be evenly distributed. After 1-2 hours, mix the above formula and then spread it into the straw. Scatter with the forks and spread the yeast ingredients to the straw. Fill the straw into the pit and gradually place it into the pool water, covered with thick dry straw. Control the temperature by covering the grass and uncovering the grass (usually higher than the temperature under the mud, it is best not to exceed 15C).
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