Open-air farming can make use of farmland, plowing the soil to make it fine, surrounded by broad-leaved tree shade, and using a net to prevent snails from fleeing. You can also use the roof of the flat-roofed house, put more than 10 centimeters of loose soil on it, plant several kinds of grape.......

The non-polluted aquaculture technology of crabs is a new type of technology popularized during crab breeding, crab cultivation, crab cultivation of one-year-old crabs, and feeding of adult crabs.

1. Select ponds, rice fields, and large and medium water areas that are close to water s.......

Bird damage is the enemy of the vineyards. Grapes in greenhouses suffer more than open grapes. Even after bagging in the ears, birds will break the paper bag and eat berries. From early-maturing varieties to late-maturing varieties, 2-3 months before and after the damage, so that grape product.......

First, the pond is prepared to practise ponds with mixed shrimps and crabs. The area is suitable for 5 mu to 10 mu. The water depth is 1 meter to 1.5 meters. The pond slope is about 1:3. It requires no leakage, drainage and irrigation are convenient, and the water supply is sufficient. Fresh, .......

The use of ethephon ripening tomatoes is a very effective method, there are three ways: 1) post-harvest dipping method. Select the top white fruit, pick it off at the layer and dip for 1 minute (minutes) in 2000--4000mg/kg ethephon solution. After slightly drying, stack 20cm thick layer and pl.......

The healthy breeding of Macrobrachium rosenbergii is based on the growth, reproduction, activity patterns and ecological requirements of Macrobrachium rosenbergii, selecting a scientific breeding model, adopting a system of standardized management techniques and creating a good ecological envi.......

With the enhancement of people's concept of health, the demand for pollution-free vegetables is getting higher and higher, and pesticide residues have been paid more attention by people. The artificial preparation of pollution-free "earth pesticides" to prevent and control pests .......

In recent years, Weihai City has made full use of its natural advantages, actively explored the use of underground seawater resources, and developed the development ideas of factory culture of South American white shrimp, adding a new economic growth point for the development of marine economy.......

Brazilian bran, also known as South American salmon, is a tropical fish and is native to the Paraná River system in southern Brazil. It has strong adaptability, fast growth, wide appetite, large individuals, and disease resistance. Strong, easy to catch, fresh and tender meat, and high econ.......

In the winter, the ewes' lambs and the ewes' lambs are born. Due to the cold weather, the development of sheep is very unfavorable. During this period, keeping good standards and keeping good tires can promote the successful lamb production of the ewes and increase the survival rate of.......

Triploid belongs to the genus Lemna of the duckweed family. It is one of the best feeds for grass carp. It is rich in vitamins and has good taste and rich nutrition. Long-term feeding of qingping can accelerate the growth of grass carp, but its disadvantage is that fish is susceptible to enter.......

(a) Organophosphate poisoning. Organophosphorus pesticides mainly include dichlorvos, dimethoate and trichlorfon. 1. Symptoms: Sudden onset, first excitement, muscle tremors, pupil diminution, post-psychosis, runny nose, mouth foaming, diarrhea, secretions sometimes mixed with mucus or bloodsh.......