Now that it has come to the fall, then fall greenhouse vegetables to plant how to manage? Here to introduce you to the fall greenhouse vegetable planting management matters.
1, the new greenhouse building
In the new solar greenhouse or plastic greenhouse, it is recommended that the greenhouse control in the length of 60-100 meters, the height of 4-5 meters or less, the plastic greenhouse control in the height of 3-4 meters, the span of the greenhouse should be controlled in the span of 8-12 meters between the greenhouse is recommended to sit in the direction of the north to face the south or the south of the south of the west by 5-6 degrees or so, in the angle of the lighting is recommended to master the 25 degrees or so, in the back of the house on the angle of elevation to master in 45 degrees or so, the use of film should be selected on the permeability of good performance of the non-drip film, but also pay attention to the actual situation according to the design of the top and waist vents.
2, variety selection
Autumn and winter, low temperatures, cold climate, short light, high humidity in the shed, whether it is sowing seedlings or transplanting and planting, should be selected for those with low light needs, good low-temperature tolerance, high humidity patience, cold and frost resistance, relatively short fertility, high yield and better adapt to the local market demand for fruits and vegetables types of melons and vegetables, such as green peppers, celery, cucumbers, tomatoes, etc.
3, planting methods
Autumn or winter crops should be based on stubble and market time early and late to cultivate strong seedlings, planting the best use of ridges and film as well as under the membrane drip irrigation method, at the same time according to the moisture, soil strength, crop types, such as appropriate sparse planting, can not be planted at too high a density in order to ensure that the seedling seedlings planted, soil moisture and temperature stabilization, and at the same time also reduces the occurrence of various types of The planting density should not be too high in order to ensure that the seedlings and seedlings, soil moisture and temperature stability, but also to reduce the occurrence of various types of pests.
4, temperature and humidity management
The most suitable temperature environment for crop growth and development in the fall greenhouse in the daytime at about 22-30 degrees, at night at about 15-22 degrees, the temperature difference between day and night at about 8-10 degrees.
Fall greenhouse watering, should look at the sky, look at the ground, look at the seedling potential, on the one hand, according to the fertility of the crop to carry out scientific and flexible watering, to maintain a reasonable soil moisture and water supply, on the other hand, to use the vents to ventilate the reasonable drainage, on the other hand, to be in the watering or after the occurrence of concentrated precipitation, to timely drainage and drainage, plowing and loosening of the soil to prevent excessive soil moisture caused by the root system of the crop suffocation or composting of oxygen deficiency. or composting.
5, light management
For the shed film aging serious shed, should be replaced in a timely manner with a strong permeability of the new film, at the same time, we should often sweep the shed film on the accumulation of dust and debris, to ensure that the film is always clean, as a way to increase the amount of light in the shed crops.
Autumn is prone to continuous rainy weather conditions, we should on the one hand in the shed to increase the application of supplementary light to supplement light, on the other hand, to spray potassium phosphate and amino acid foliar fertilizer and other nutritive and functional foliar fertilizer and the appropriate amount of gibberellin, in order to reduce and environmental light on the crops brought about by the adverse effects of insufficient light.
6, pest control
Autumn is the high incidence of various types of pests and diseases, this stage of the incidence of higher, more harmful types of pests and diseases are: insect pests whitefly, aphids, leaf mites, whitefly, small tigers, cabbage moths, cabbage greenfly, cabbage stem borer, spotted fly, etc.; diseases such as powdery mildew, viral diseases, gray mold, anthracnose, downy mildew, epidemics, stem rot, wilt disease, green blight, soft rot and so on.
There are many methods of pest control, which can be a combination of biological control (release of natural enemies, etc.), agricultural control (sowing and cultivation management, etc.), physical control (hanging yellow sticky boards, black lights, etc.), and chemical control (spraying drugs).
The above is about the fall greenhouse vegetable planting techniques and management points introduced, fall greenhouse vegetables, just in time for the winter market, this time by the weather all kinds of vegetable prices will rise, so in order to effectively ensure that the benefits of the growers must do a good job of prevention and control.
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