How to manage greenhouse vegetables after heavy rain
In the past, heavy rainfall has ravaged Guangdong, Guangxi, Jiangxi, and Zhejiang. A few days ago, parts of Sichuan, Shaanxi, Henan, Hubei, Hunan, Anhui, Jiangxi, Jiangsu, and Zhejiang provinces experienced heavy rains, accompanied by strong convective weather such as thunderstorms. Heavy rainfall will inevitably affect agricultural production. After the heavy rain, how should vegetable production be dealt with?
drain
Dredge the three ditch, remove the water, ensure that the rain is fast, the rain is ditch, and there is no water in the ditch. For areas with low ground level and low water level, organize electric pump drainage, speed up drainage and reduce groundwater level. The flooded vegetable fields should eliminate water in the field as soon as possible, vacate the ground, reduce flooding time and reduce the degree of damage. To achieve the "three ditch" ditch and the ditch, rain and ditch to protect the vegetable roots healthy growth and reduce waterlogging. Reduce the suffocation of vegetables caused by stagnant water and waterlogging, and prevent vegetables from leaving the park early.
Vegetable management
Timely rectify the fallen vegetables, reduce the phenomenon of mutual extrusion, and properly cultivate the roots. The foliar fertilizer is sprayed in time, and the soil is compacted after the rain. When the soil is slightly dry, the soil is ploughed in time to improve the soil structure and improve the root activity. When the storm has passed, artificial water spray should be carried out in time to rinse the blades. In places where there are wells, it is best to use well water for sprinkler irrigation to wash the soil adhering to the stems and leaves. It can also be protected from rain (ie directly covering the top film or directly covering the sunshade net or a film plus a net) to shade and cool down, to prevent rainstorms and to be exposed to high temperature and sun exposure after rain.
Pest Control
After the rainstorm, the field temperature is high, the humidity is high, the plant resistance is weak, and it is easy to cause pests and diseases. It should be sprayed with protection and prevention in time. The agent can be used in the broad spectrum and pollution-free type such as carbendazim + enemy killing or chlorothalonil.
Replanting in time
For some fields where dead seedlings and lack of seedlings are present, the farmers are actively instructed to replant and replant the fast-growing vegetables. At the same time, take measures to avoid rain, organize seedlings for autumn sowing vegetables such as cabbage, cauliflower, pepper, tomato, eggplant, hazelnut, cucumber, small pumpkin, lettuce, and celery.
Pay attention to prevent secondary disasters
In the steep terrain of the mountain high road, attention should be paid to the hazards of mudslides and landslides, and certain defensive measures should be taken to prevent secondary disasters. For facilities with large rainfall and long immersion time, the sheds should be repaired in time to prevent the greenhouse from collapsing.
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Summer vegetable prices may rise
Recently, vegetable prices across the country have continued to decline. Insiders analyzed: The price of vegetables continues to decline, mainly for three reasons. First, many open-air vegetables are listed, the production cost of open-air vegetables is low, which has a certain impact on the local vegetable market. Second, the greenhouse spring leeks enter the end of harvesting period. In management, the quality is declining. Third, with the arrival of the slack season, the foreign vegetable merchants in the large-scale vegetable market have begun to withdraw or transfer to the nearest transportation. Due to the combination of factors, the price of vegetables is always in the downward channel.
After the wheat harvest, the summer vegetables are planted one after another, and many farmers expect that this year's summer vegetable market will be better than previous years. To analyze the favorable factors of the higher summer vegetable prices this year, the first is the climate impact of “Southern and Northern Droughtâ€. Every summer, vegetable cultivation in the south, northeast and high altitude areas is the main force in the supply of summer vegetable market. Under extreme conditions, reducing production and reducing income will affect market supply and demand and stimulate the price of vegetables.
Secondly, the market supply was tightened. At the end of June, the greenhouse was pulled out of the greenhouse, and the total supply of the market was reduced, which was also a favorable factor for the upward price of vegetables.
Third, in the summer high temperature season, the loss of each link of vegetable sales will increase, and the transportation process needs cold chain cars, ice bottles and other auxiliary, packaging, labor and other costs increase, factors superimposed, July vegetable prices may rise.
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