Due to the diseases of cucumbers in greenhouses, the vegetable farmer Zhang found Wang, a vegetable expert. Master Zhang took five or six cucumber leaves and handed them to Mr. Wang Zhongchun. Teacher Wang Zhongchun looked back and forth and asked him, “What drug have you been playing recently?†“Three days ago, the edges of the upper middle leaves of the rows of cucumbers near the outlet of the shed appeared dry and I thought I was getting bacteria. With blight, even the noble copper treatment was used twice," replied Master Zhang.
Wang Zhongchun pointed at the cucumber leaves and said: “Your cucumber leaves have already had symptoms of phytotoxicity. The copper is noble inorganic copper preparations. If you have a bacterial disease, choose it to work well. But your cucumber is not a bacterial edge. Disease, medicine is not easy to harm traditional Chinese medicine, and now these leaves have some symptoms of phytotoxicity.†“What is that disease ah?†Zhang Chang, farmer looked puzzled. "This is caused by improper ventilation. It is the diseases caused by pathogens that can be transmitted. You say that the situation of cucumbers is not contagious. It means that it is not a disease caused by pathogenic bacteria, that is, it is a non-infectious disease. You carefully observe these leaves, you can Seeing the edge of the victim's blade loses water, it is not easy to pull off and it is green and dry, which should be caused by sudden over-exposure. In the deep winter and early spring, the outside temperature is very low. If the air is too large, the outside cold wind quickly enters the shed. The cucumber under the air outlet was the first to suffer, and the leaves were attacked by cold air. Sudden loss of water and dryness occurred. This happened,†said Wang Zhongchun, who carefully analyzed the vegetables.
Master Zhang listened and said: “Mr. Wang, can I still remedy the problem with my cucumber?†“You can remedy this, you go back to the foliar spray of amino acids, Bao Mei Ling, and Life No. 1 foliar fertilizer. Once in 5 days, After 2 shots, you can resume growth.Afterwards, pay attention to split air release. In the morning, half an hour after the sun comes out, first open about 5 cm of the hole, change the air in the booth for about 20 minutes, and then close the air outlet to increase the temperature and humidity. When the temperature of the shed reaches 30°C, the shed temperature is increased, the shed temperature is controlled as much as possible, and the temperature is maintained at 30°C during the day. In the afternoon, when the shed temperature drops to 22°C, the tuyere begins to close, the mulch at 18°C, and the nighttime at 12 -18 °C, conducive to the growth of cucumber.In addition, in order to avoid recurrence of cold wind damage the cucumber leaves in the future, I suggest you in your own shelter under the outlet, to the north side of a 'cold protection film', change the cold wind directly into the situation."
Paddy Machine,Nursery Machines,Rice Machine Price,Mini Paddy Harvester
Henan Qianli Machinery Co.,Ltd. , https://www.chalionagri.com