Greenhouse pepper planting technology: What do you want to do for high yield?
At present, the planting area of ​​peppers in China exceeds 20 million mu. The average annual output in the past three years is about 28 million tons, and the annual output value exceeds 70 billion yuan. The pepper industry has become the largest vegetable industry in China, and the development of autumn delayed pepper production is also It is extremely rapid, because the cultivation of peppers in the greenhouse after the autumn delay can delay the time to market for the peppers until the New Year's Day and the Spring Festival, and the output value can reach 7.5~90,000 yuan/hm2, which is quite high. However, due to the anti-season cultivation, the cultivation of peppers after autumn extension mainly selects varieties that are resistant to disease, strong in growth, high in temperature in the early stage, and low in temperature in the later stage, and have higher requirements for planting cultivation techniques and management levels.
Before the planting, the land was ploughed and sun-dried, and the base fertilizer was applied. In the greenhouse, 3500-4000 kg of farmyard manure per mu was applied, 50 kg of superphosphate, 15 kg of oil, 20 kg of urea and 25 kg of potassium sulfate. Generally, the ditch casting method is adopted, that is, a deep ditch is dug in the center of the crucible, the base fertilizer is evenly applied, and then the kneading surface is leveled.
Cultivation of peppers in greenhouses, usually from late October to mid-November, so the first batch of goods to be listed from late January to early February, is catching up with the New Year to sell the price.
In the production, the wide ridge and double rows of dense planting are used to make the width of the car 90-100 cm, the width of the groove is 25 cm, and the depth is 20 cm. Planted two rows on the box, the plant spacing is 25-30 cm. One plant per hole was planted with 3,500 plants per acre. This kind of dense plant, thin line planning is conducive to the early closure of the ridge, but also conducive to the ventilation between the lines.
After planting, the early stage is mainly based on heat preservation, and the insulation is sealed. After the seedlings are slowed down, the temperature in the shed is lowered, and the temperature in the outside is increased, and the temperature in the shed is adjusted by ventilation. When the outside temperature exceeds 15 °C, the film on both sides of the greenhouse can be ventilated day and night. Peppers are afraid of high temperatures, strong light, and heavy rain. Therefore, in the production of greenhouses, the top plastic film can be covered all the way to weaken the light intensity and avoid heavy rain.
It is worth mentioning that the management of fertilizer and water for planting peppers in greenhouses is very important. From the early stage to the collection before the request for stable growth, so in the early stage can not be more fertilizer, to promote control, promote roots, promote fruit, control the length. Therefore, after the seedlings are slowed down, the fertilizer should be lightly applied. The concentration of the fertilizer should be light and the quantity should be small. At this time, the plant growth should be properly controlled, and it should not be prematurely sealed to facilitate the early results. When the harvest is started, the plant's request for water and fertilizer should be gradually increased. In order to promote more results, it is necessary to strengthen the treatment of water and fertilizer. Usually it is suitable for light fertilizer water or chemical fertilizer. For example, in the case of applying the base fertilizer, the water is mainly used.
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