At present, the greenhouse grows into a rapid growth stage after simmering vegetables in early spring. From the colonization period to the entry stage, cultivating strong trees is the key. Specifically, work should be carried out from the following four aspects: first, sterilizing in advance to reduce the number of pathogenic bacteria in the greenhouse; second, comprehensive regulation to ensure that vegetables are quickly replaced, and enter the normal growth period; third, rational regulation and control to ensure plant nutrition Growth and reproductive growth balance; Fourth, do a good job in the prevention and control of pests and diseases.
Arch shed vegetables
At present, the arch shed vegetables have entered the early stage of large-scale shovel, so it is necessary to minimize the number of pathogenic bacteria in the shed. For example, in the past years, sclerotinia sclerosis often occurs in the shed. It is recommended to use the sclerotia net for the whole shed spray, including the ground, shed and column, and the spraying should be comprehensive and uniform. Before planting, especially when encountering weak seedlings, old seedlings, etc., it is recommended to use chitin, brassinoside, avermectin, carbendazim or allicin in the sputum tray, which is very good for pests and diseases. Good killing effect.
It is worth noting that chitin and brassinolide have the effect of promoting rooting under low temperature conditions. In the shed where manure is used, when watering, it is necessary to apply microbial fertilizer in time to promote rapid decomposing of manure and avoid ammonia burning.
In addition, it is necessary to remind the pepper growers that if the seedlings are too long, the roots will grow rapidly after planting, and it is easy to produce wounds. It is necessary to apply fungicides such as allicin in time.
Greenhouse vegetables
Recently, the temperature is still low, and there are many low-temperature and high-humidity environments in the shed. The greenhouse vegetables after the replacement should be disease prevention and balanced growth. Fungal diseases are mainly prevention, and bacterial diseases are mainly caused by prevention and mild treatment. Balanced growth can be carried out by rational water control and fertilizer control, but this should be carried out on the premise of ensuring the normal growth of vegetables, or sprayed with foliar fertilizers that regulate growth, such as chitin, seaweed, amino acids or dihydrogen phosphate. Potassium, etc., to avoid the use of excessive use of control agents, resulting in difficult to return to normal conditions.
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