How to stew a greenhouse for five or six years?

1. Clean up the debris and level the plot: thoroughly level the ground for the crop residues or weed roots in the shed. All the air outlets in the shed are closed and dried for a week.

2. Deep fertilization: After a week of drying, evenly spread the rotted farmhouse organic fertilizer on the surface, and evenly sprinkle 1 layer of lime nitrogen (or quicklime) for deep ploughing.

3. Sufficient water irrigation to increase humidity: flood irrigation, the water surface should be 3-5cm higher than the ground. When the soil moisture content reaches about 60-65, the overall effect of high-temperature simmering is good.

4. Mulch film covering, high temperature disinfection: seal and compact the ground with old shed film or mulch film. The soil temperature of 10cm on the surface reaches 70 °C, and the temperature of 20cm thick soil reaches more than 45 °C, and the sterilization rate can reach more than 80% at this time.

It can also be sprayed with bactericides and insecticides once before simmering to kill germs and pests hidden in the cracks of the corner walls.

6. Supplemental application of biological fertilizer to increase beneficial bacteria: Today, I recommend a product from Shandong Liaocheng Science and Technology Innovation Agricultural Science and Technology Co., Ltd. - Gram Bacteria 91, which can completely kill fungi and bacteria in the soil without temperature restrictions, and can also kill viruses and weeds in the soil, and can also improve the soil.

It's better to be a little dry and stuffy and tasty, because it will be more textured and flavorful when it is made.

Greenhouse stewing, generally to make the water simmering is better, so that it can play a role in moistening the greenhouse.

If the greenhouse is stuffy, it is generally dry stewed, the effect is better, so that the effect will be more comprehensive and the effect will be better.

The greenhouse stew shed is good for water stewing.

I feel that it is better to say that the water is stuffy, because then there will be no shortage of water.

I'm actually bored with this, it's better.

In terms of management, there are basically these three points, temperature, light, water and fertilizer.

1.Temperature and humidity management. The daytime temperature is controlled at 25-30 and 18-20 at night during the seedling retardation period, and the room temperature during the day is controlled at 20-25 and 12-15 at night after the seedling retardation, and the watering is appropriately controlled.

After sitting the melon, the temperature is controlled at 25 -30 in the morning, and the humidity is about 75%; 20 -25 in the afternoon, the humidity is about 70%; The minimum temperature at night is above 12.

2.Lighting management. The greenhouse should choose a non-drip film with good light transmittance, and clean the film surface frequently to keep the plastic film clean.

During the day, the light intensity and time should be increased as much as possible, even on cloudy and snowy days, the grass curtains on the greenhouse should be removed, and the grass curtains can be removed at noon after clearing the snow on heavy snow days.

If it is cloudy for a long time, the grass curtain should be removed at intervals and the light should be gradually increased.

3.Water and fertilizer management. Depending on the soil, weather and seedling conditions, water once every 10-20 days, watering should be selected in the morning on a sunny day, and pay attention to wind and moisture. Every 2-3 times of water chasing 1 fertilizer, stop topdressing 30 days before harvest.

Prevent disease. The biggest disadvantage of growing vegetables in greenhouses is that they are prone to pests and diseases. This is due to the high temperature and humidity in the greenhouse, the slow air flow, and almost no direct influence from the outside world.

In this regard, the following work should be done:

1. Try to choose disease-resistant varieties, such as pepper Xinxin No. 4, Xinxin No. 5, Xiangyan No. 9 pepper, Xiangyan No. 10 pepper, Xiangyan No. 11 pepper, Guangjiao No. 2, Layou No. 4, eggplant Fengjia No. 1, Fengjia No. 2, cucumber Jinza No. 3 cucumber, Jinza No. 4 cucumber, Jinchun No. 4 cucumber, early green generation zucchini and so on are all good protected cultivar varieties.

2. Do a good job of soil disinfection. Now the northern greenhouse has entered the winter break, and the main work to be done after the greenhouse vegetables are pulled out is to prepare for soil disinfection. Before the next planting, take a high-temperature stuffy shed, or sprinkle quicklime on the ground for disinfection, which can effectively prevent and control some soil-borne diseases of vegetables.

3. It is best to plough once a year.

For the newly built greenhouses in 1-2 years, the problems of soil-borne diseases and salinization are not prominent, and measures can be taken to increase the application of organic fertilizer and biological fertilizer, combined with deep ploughing.

When planting, you can use pesticide hole application and dipping tray, such as anti-stubble Ning and other dipping trays, hole application of biological fertilizer, etc., which can greatly reduce the phenomenon of rotten roots and dead trees.

For 3-5 year greenhouses, it is recommended to combine high-temperature stuffy sheds, combined with calcium cyanamide, cotton and other smoked sheds, and combined with grafting and disease-resistant varieties.

Reduce the amount of chemical fertilizer, increase the application of organic fertilizer, it is best to rotate crop or plant a crop of green manure crops (such as alfalfa, spinach, corn, etc.), if necessary, with high water pressure salt.

More than 5 years of greenhouses, continuous cropping obstacles have been more serious, especially about 10 years old, often have yellow leaves, premature aging, rotten roots, dead tree phenomenon, the surface of the soil layer has white or red or green substance.

To solve salinization, we must first turn the ground deeply, ridge and furrow, and then irrigate with large water once a year. Combined with crop rotation, increasing organic fertilizer, and greatly reducing the amount of chemical fertilizer, the effect will be more prominent.

If the soil-borne disease is very serious, it is necessary to use fumigation and disinfection such as cotton long, combined with anti-stubble and pesticides to irrigate the roots once, and the phenomenon of rotten roots and dead trees will be effectively controlled.

The last disinfection and sterilization fumigant of the soil is Mianlong, disinfection is thorough, long effective period, the disadvantage is that the cost is high, the operation is complex, you can also use calcium ammonium hydrochloride stuffy shed, high temperature season 6 July, per mu with calcium ammonium hydride solution 40 80 kg with water, watered thoroughly and evenly, and then covered with mulch, close the tuyere, high temperature stuffy shed 10 15 days later, uncover the film and release the wind, turn the ground and deflate 5 7 days later, both can be fixed, high temperature stuffy shed can effectively prevent, root rot, wilt, vine, and other soil-borne diseases, play a role in sterilization and disinfection, However, soil microorganisms have also been killed, so it is recommended to supplement microbial fertilizers (agents) when planting crops.

When the simmering shed reaches a certain temperature, it will have an insecticidal effect, and there is generally no need to use other medicines. Before simmering, use a 200 times liquid high-lipid film enhancer, this film layer can make the simmering effect better.

You can use mushroom insect fumigation medicine for insecticidal treatment.

Finally, you can determine what type of insect it is, such as: stomach poison, contact killing, fumigation, etc., and then determine what kind of pesticide to use.

This high-fat membrane can be bought there.

What a coincidence! I know that two kinds of medicine are exactly the same as these two diseases, and the effect is very good from my customers who use fertilizer. A search on the Internet for biopesticides 30% suspensions and nematode drugs is written on the Internet and there are some descriptions on the Internet. You try it.

Melon, chain melon, stuffy shed, his reason is because the temperature inside is too high, the temperature is not up and down, so plus the rain is too cracked and bright, so it is easy to stuffy the shed.

While smothering and sterilizing, it also kills beneficial bacteria. Smothering with lime nitrogen can increase the nitrogen and calcium fertilizer in the soil in the shed. Increase air permeability, kill soil-borne diseases and underground pests, and lay a good foundation for crop growth.