I. Insect net coverage technology

After the insect-proof net is covered on the facilities, a closed and isolated space is formed, which can effectively prevent the adults from entering the spawning and larvae from entering the direct hazards, cutting off the transmission route of the pests, and the pest control effect is very obvious. Silver gray insect nets also repel aphids. According to the experiment, in the period from May to October, 20-mesh silver-gray insect nets were used to cover small green vegetables in all weather conditions. Observations were made 14 days and 24 days after emergence. The efficiency of protection was 83% and 72%, respectively; 80% of dichlorvos EC before harvest were used. The soil was sprayed once with 1000 times. If no insects were found on the plants, the efficiency was as high as 100%. Since the insect nets can effectively prevent and control the virus transmitted by ticks, almost no virus disease occurs in the young vegetables. Compared with conventional (open field) production, the use of drugs is reduced by 7 times per pound to ensure pollution-free production.

Second, frequency vibration type insecticidal lamp

Light trapping is a physical control method that utilizes the phototaxis of insect pests to trap and kill. According to tests, the trapping and killing pests mainly include Lepidoptera, Coleoptera and other 7 orders of more than 20 families and more than 40 kinds of pests, of which Lepidoptera accounts for 69.8% of the total trapped amount, Spodoptera litura, cotton bollworm and other Noctuidae pests. It also accounts for 75.2% of lepidopteran pests. According to the trial from September to November, an average of 1,415 insect pests per day were trapped and killed. The use of frequency-vibration type insecticidal lamp reduces the use of drugs by 2 to 3 times per day compared to conventional management; the use of frequency-vibration type insecticidal lamps has little damage to the enemy, and the ratio of hazards to hazards is ≤1:98.5; frequency-type insecticides of common models The lamp consumes 0.5 degrees per night, only 9.4% of the high-pressure mercury lamp is used at a low cost; with the common type of frequency-vibration lamp, it is only necessary to turn off the lights and turn on the lights every day sooner or later, without adding water and washing powder or diesel. If you choose the light-controlled frequency vibration type insecticidal lamp, turn off the lights and turn on the lights automatically every morning and evening, which is more convenient.

Third, nitrate pollution control technology

Controlling the amount of nitrogen fertilizer is the key technology to control the excessive nitrate content of vegetables. Tests have shown that blind application of organic fertilizers can cause excessive nitrate levels in vegetables. The total phosphorus fertilizer, potassium fertilizer 2/3, nitrogen fertilizer 1/3 as base fertilizer; base fertilizer to high-quality farmyard fertilizers (667 square meters application is generally 3000 to 5000 kg), 2/3 applicator, 1/3 ditch application. Reapplying basal fertilizer and lightly applying topdressing can significantly control the nitrate content in vegetables, especially fast-growing leafy vegetables with short growing period (the last topdressing nitrogen fertilizer should be carried out 15-20 days before harvesting).

Fourth, yellow board trapping technology

Using the yellowing of insect pests such as locusts, some yellow armyworm boards are hung in horticultural facilities to trap and kill pests. According to the test, in the production of tomatoes, cucumbers in the greenhouse 1.5 to 1.8 meters high, hanging 5050 cm or 5070 cm per mu of self-made yellow plate 20 to 25, can reduce the population density of aphids 20% to 40%, each茬 Reduce medication 5-8 times. The insect-proof net and the yellow board are applied simultaneously to the production of vegetables without pollution. The insect-proof net covers all weather in summer, and the vents and doors are closed in winter and spring and autumn. The yellow-board trapping and trapping of pests inside the facility can be used to reduce the use of pesticides. The number of times, and the increase in revenue is significant.

Fifth, prevent rain cultivation and disease prevention technology

In China, it is rainy and hot in summer, and the disease is rampant. The medication is frequent, the vegetables are heavily polluted, the quality is of high quality, and pollution-free production is difficult. The use of rain cultivation technology, the prevention effect is significant. According to the test, covering the solar greenhouses with plastic film to shelter from the rain and covering the shade nets to cultivate summer and autumn tomatoes have the advantages of reducing the number of drug control and the amount of drugs used, and increasing production and income. Compared with the control (open field), the incidence of late blight and virus disease in tomato cultivated from rain was 23 percentage points and 31 percentage points lower respectively; the number and frequency of medication use were reduced by 66.7%; tomato late blight and bovine blight disease had reduced fruit decay rate At 17.2 percentage points, fruit cracking and daily burning were also significantly reduced; the output increased by 17.4% per 667 square meters, with a value increase of 36.4%.

Sixth, facilities control wet prevention technology

According to the test, the energy-saving solar greenhouse has 15-20 cm high ridges covering the mulch, and cultivated cucumbers in winter and spring. Compared with the control (flat mulching and uncovered mulching), the 5 cm ground temperature increased by 1.2°C to 1.5°C, and the air humidity Reduce the incidence of 20% to 30%, reduce the incidence of drug use more than 30%, increase production and income by more than 10%. According to experiments, the incidence of downy mildew in cucumbers covering greenhouses is 30.2 percentage points lower than that of ordinary membranes.

Seven, biological pesticide application technology

At present, the most prominent pollutant in China's vegetable products is pesticide residues. The experimental demonstration of the promotion of microbiology, agricultural antibiotics, plant sources, insect growth regulators, four categories of more than 20 kinds of biological pesticides, not only has a good control effect, but also can ensure the pollution-free production of vegetables, reduce pollution of pesticides on water, soil and air.

Tuna Cube,Cod Skin Twist, CodFish Skin Cube,Salmon Wrap Cheese Stick,Dried Fish,FD Spring Fish   

Fish

Freeze-dried Cod Cube,Tuna Cube,Salmon Cube,FD Spring Fish,Dried Salmon Stick

Eastan Pet , http://www.eastanpet.com