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1. Summer heat excrement. To seize the favorable opportunity for high temperatures in summer, accumulate a large amount of farmyard manure, mix human waste, pig dung and smashed plant stalks, add appropriate amount of water, seal it in the pit or the ground for 20 to 30 days, and allow it to fully decompose. Full maturity of farmyard fertilizers is beneficial to vegetables to absorb their nutrients, but also kill pathogenic bacteria and pests in the fertilizer. Farmers who need to purchase chicken dung should purchase it early, transport it near a greenhouse, seal it in the pit or on the ground (preferably with a plastic film seal).
2. Rainy season shelter. Before the rainy season. The waste shed film is buckled on the back slope and back wall of the greenhouse and on the two mountain walls to prevent heavy rain from hitting the slope or wall.
3. Earlier sterilisation. Before the autumn, the vegetable growers should repair the wall, fix the skeleton, and do a good job of keeping the temperature high. In particular, greenhouses where vegetables have been planted for several years have accumulated many kinds of pathogenic bacteria in the shed and are to be sterilized by high temperature. The method is as follows: Before the middle of September, sheds are baited, combined with the preparation of sterilized organic fertilizer, and poured once. water. At this time, the temperature of the shed can reach 60-70°C during the day. If vinyl chloride film is used, the temperature of the shed can reach 80°C during the day. This high temperature generally kills pathogens and pests in the corners of the shed and on the ground. If the time for the tarpaulin is later than the end of September, there will be less chance of high-temperature stuffy sheds, and it will be necessary to use drugs to kill pathogenic bacteria. Common methods are as follows: (1) Sulfur smoked shed. Sulfur 250g per 10m greenhouse, mixed with wheat bran or crushed hay points into dark fire, smoked shed sterilization. (2) Formaldehyde plus potassium manganate shed. Potassium permanganate 150g per 10m greenhouse was placed in a bowl containing 300g of formaldehyde solution, and the two items reacted chemically to form an aerosol smoke sterilizer. Note: When the shed is smoked, the other end of the shed must be flammable towards the end of the shed. After the release of fire, people should immediately leave the shed and block the shed.
4. Warm winter vegetable cultivation techniques. In the vegetable greenhouse, sowing of eggplant, tomato, bean, cucumber, gourd, bitter gourd and other thermophilic vegetables in the summer (11,12,1, and 2 months) will be harvested and marketed in the summer, which can fill the blank of the fresh thermophilic vegetables in the northern market. Improving the vegetable basket in the off-season of vegetables can also increase the economic income of vegetable farmers, and the economic benefits can multiply exponentially. (1) It is necessary to build a greenhouse with good insulation performance. The temperature in the shed during cold winters should not be lower than 6°C, and the ground temperature should not be lower than 8°C. (2) It is necessary to use a non-drip greenhouse film and clean it frequently to keep the light transmittance between 85% and 90%. (3) Timely nursery. Eggplant and tomato must be raised in early August; beans are raised in late September; loofah, cucumber, and bitter gourd are raised in early October. (4) Wherever possible, grafting should be carried out as far as possible. Such as: loofah, cucumber, easy to enhance cold resistance, expand the root system, strong seedlings, early listing, high yield and high efficiency. (5) High-riding cultivation and full-coverage technology must be applied to the ground. In order to increase the temperature, reduce greenhouse moisture. (6) Increase organic fertilizer, increase soil water retention, fertilizer retention, and air permeability.
The application of greenhouse housekeepers is very helpful in the implementation and formulation of some plant protection measures for appeals, and is also an inevitable choice for the development of modern greenhouses.
Application of greenhouse housekeepers in greenhouse vegetable cultivation
The cultivation of greenhouse vegetables is an inevitable choice to meet the modern market. In order to be able to plant good winter greenhouse vegetables, vegetable growers need to provide plant protection measures for the greenhouse vegetables is very tedious. Under the development of modern science and technology, greenhouse housekeepers can be used to help grow greenhouses.