Greenhouse pepper planting technology
In the cultivation of peppers in the solar greenhouse, the most troublesome problem is that the peppers are not planted after the planting, the dead trees or the plants are wilting. What are the reasons for these, and how to prevent it?
First, the field symptoms
After the pepper is planted, the wilting plants appear in the field. The main performance is long incubation time; the plants are weak; the leaves are yellow; the wilting occurs on sunny days. The reasons are mainly the following:
1. The planting is too deep. Some farmers may consider that they need to be watered after planting. They are afraid that the water will rush over the seedlings, and almost one-third of the stalks are buried in the soil. Due to high temperature and high humidity, the stems become brown. Even rotten, but this is not a disease and cannot be prevented by spraying.
2. Adaptation process of seedling seedlings. Since the seedlings have been adapted to the soil environment of the seedbed before planting, it is necessary to have a certain time to adapt to the soil environment in the arch shed after the planting, which results in a longer incubation time.
3. The planting time is too early, causing the root cause. Because most of the vegetable farmers did not take ridges and colonization, and most of them adopted the method of flooding with large water, the permeability was not good, resulting in roots. When the wilted seedlings are pulled out, it can be clearly seen that some of the capillary roots have been necrotic, and the remaining roots are insufficient to maintain the nutrients and moisture required for their normal growth. When the temperature is high on a sunny day, the amount of transpiration of the plant is large, and the water required is large, so the wilting phenomenon occurs.
4, improper use of farmyard fertilizer caused by burning roots. The application of high-quality agricultural fertilizer in greenhouse is the basis for high-quality and high-yield vegetables, and it is also the most effective measure to prevent and alleviate the obstacles in greenhouse soil continuous cropping. However, if the unfertilized agricultural fertilizer, or the agricultural fertilizer is not applied to the ground, or the agricultural fertilizer is not applied deeply, or the amount of agricultural fertilizer is too much, the decomposition will cause high temperature around the root system or the soil solution concentration is too high, forcibly from the root of the plant. Ask for the main root of water burns, affecting root development and causing wilting.
Second, preventive measures
On how to solve problems such as deep planting, it is possible to improve the field management techniques and dig a small tool around the seedlings to expose the stems buried in the soil to the soil. Appropriately increase soil permeability, avoid rotten stalks, and cause dead trees.
Third, in order to effectively solve the "fat damage" problem, we must pay attention to the following four points:
1. Fully decomposed. The farmyard manure must be fully decomposed and treated in a harmless manner before entering the greenhouse. It is strictly forbidden to enter the shed into the ground. When stacking rot, it is necessary to turn off the humidity, seal off, and turn over, so as to kill germs, eggs, and grass seeds, and reduce pests and diseases.
2, fine, sieved. The fertilized agricultural fertilizer should be finely sifted and sieved. Otherwise, the new roots that have just been planted after the planting will cause burns. The lighter ones will affect the development and cause “small old seedlingsâ€, while those with heavy ones will suffer from wilting or even death.
3. Deep application. After the fertilizer is applied, it must be deep and mixed.
4, the right amount of fertilization. The amount of agricultural fertilizer is not as high as possible, and excessive application is also prone to root burning problems.
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