In an interview with the village of River Kwai, the reporter saw Master Dong watering the celery seedlings. In the conversation, it was learned that last year, Dong's celery seedlings caused many diseases due to high temperature and rain, some were rotten, some had dead leaves, and they looked around to reluctantly meet enough seedlings. This year, Master Dong has strengthened the management of the seedling stage. At present, the celery seedlings grow well. Master Dong is how to manage, what good experience? The reporter conducted a summary.
First, take measures to promote celery seedlings
1. Cool down. Celery is a kind of cool crop. The optimum temperature for emergence is 15-20°C, and the seedbed temperature should not exceed 25°C. However, after entering the summer, the outside temperature is usually above 30°C, which is not conducive to the emergence of celery. Therefore, when the temperature is too high, vegetable farmers should take measures such as shading, water spray and other cooling measures. Master Dong also said that the celery seedbed should pay attention to water pouring, keep the seedbed moist, and well water with lower temperature is also conducive to lower seedbed temperature, and create a suitable growth environment for celery seedlings.
2. Seedlings. Master Dong introduced that many vegetable farmers are now no longer in order to save trouble, making some places celery seedling density is too large, there are a large number of weak seedlings, seedlings, and high density, poor ventilation between plants, easy to infect diseases, there is dead seedlings, so the seedlings are still very important. When the celery seedlings grow to one true leaf, the dense seedlings, diseased seedlings, and weak seedlings should be removed. The seedling distance should be adjusted to 2-3 cm. The seedlings should be transferred to field weeds to improve the growth environment of celery seedlings and promote seedling growth.
3. Flood prevention. In summer, there is frequent rain, and heavy rain often comes. Poorly drained plots have serious water accumulation and are prone to damage. The roots of celery seedlings are weak, and drainage prevention work should be done. A drainage ditch should be built near the seedbed to ensure that the water can be drained in time after rainfall.
Second, timely prevention of pests and diseases
1. Recognize the timely prevention and treatment of diseases.
The high temperature and rain in summer, the humidity of the seedbed is high, the temperature is high, it is easy to infect a variety of diseases, such as damping-off disease, soft rot and so on.
Soft rot is a kind of bacterial disease. The diseased seedlings are rotted and smelly. When the humidity is high, the disease is heavy and the spread is rapid. Therefore, the vegetable growers should be prevented and treated in the early stage. If there is continuous rain, the protective agent should be sprayed once in a timely manner. Observe the condition of the seedlings. If the disease occurs, the pesticide should be sprayed in time. Use 72% of agricultural streptomycin 3,000 times, 3% of midorigin 1000 times, 33.5% of quinoline copper 800 times and other agents.
Blemishes are diseases caused by fungi and often cause large dead trees. High temperature and rainy weather are conducive to the spread of diseases. It is recommended that vegetable farmers spray pesticides immediately after emergence and after rainy days. They can use 75% chlorothalonil 600 times and fine metalaxyl MnZn 1000 times.
In addition, we must pay attention to the early supplement of boron, calcium and other trace elements, to avoid rotten rod stalks, heartburn and other physiological diseases.
2. Control pests
The pests that injure celery in summer mainly include cabbage caterpillars, aphids, leafminers, etc. They are covered with conditional insect-repellent nets to reduce the invasion of pests, and at the same time they are used for the control of insect pests such as imidacloprid, avermectin, cyromazine, etc. Prevent the occurrence of pests.
Fresh Fruit refers to the edible fruits of plants with juicy and mainly sweet and sour tastes. Fruit not only contains rich vitamin nutrition, and can promote digestion. AGOLYN offers a variety of fruits such as Fresh apples, Fuji apples, kiwi, pears, lemons and so on .
Fresh Fruit,Fresh Apple,Kiwi Fruit, Fresh Lemon,Fresh Pears
Xi'an Gawen Biotechnology Co., Ltd , https://www.seoagolyn.com