How to prevent the death of vegetables when Rain Water enters the vegetable shed

Recently, due to frequent rainfall, a large number of Rain Water entered the vegetable shed, resulting in a serious death of some vegetables, characterized by many dead trees on both sides of the shed, air vents and places where rain was leaking on the shed surface. After Rain Water entered the shed, how to prevent the death of vegetables? Vegetable farmers can take the following measures.

First, Rain Water should be excluded as soon as possible. After pouring Rain Water into the greenhouse, we should try to eliminate stagnant water in the shortest time to avoid a large amount of Rain Water accumulation in the planting line which can not seep and lead to vegetable retting roots. A shed with drainage conditions can lead water to a ditch. A shed without a ditch around the shed should immediately use a pump, hose, etc., to drain the stagnant water in the shed into the ditch. The root system of vegetables has poor resistance after retting, and it is very easy to be infected by Rain Water and harmful bacteria in the soil.

The second is to paddle the hoe at the right time. After draining the stagnant water, the soil in the greenhouse should be hoed in time when the soil is dry and wet, so as to increase the air permeability of the soil and promote the vegetable root system to restore normal growth as soon as possible. The depth of the hoe varies according to the growth of the root system of vegetables. for example, if the newly planted vegetables are flooded by Rain Water, the depth of the hoe can be deeper because the root system has not expanded in a large area; if the root system has been expanded and fastened at the seedling stage, the depth of the hoe can be controlled at about 3 cm. And don't get too close to the plant. If it is difficult to grasp the depth of the hoe, it is recommended to keep away from the root system of the plant.

The third is to irrigate the root with medicine in time. The flooded vegetables should be irrigated once in time when the soil moisture is appropriate in order to avoid the death of the plants. The root can be irrigated with 1000 times of 30% chloro-bromoisocyanuric acid or 1000 times of chlorobromoisocyanuric acid. When filling roots, it can be combined with appropriate rooting agents or chitin, such as Apollo 963, to promote the repair and regeneration of injured roots. Do not use too high concentration, otherwise it is easy to damage the root system.

The fourth is to increase the application of biological fertilizer. Making use of the bacteriostatic characteristics of biological bacteria, it can be applied with watering after 7 days of root irrigation with chemicals. It should be noted that bacterial fertilizer should not be used at the same time with fungicides, and should not be used during the peak efficacy period of fungicides. Attention must be paid to the safe interval between the two. Suitable bacterial fertilizer products include bacterial bar, anti-bacterial 968 seedling irrigation and fertilization, ETS microbial agent and so on.

In addition, vegetable farmers should repair the damaged greenhouse film in time, and set up rain walls and rain screens on both sides of the shed to prevent Rain Water from entering the shed.

Wang Haitao, Agriculture Bureau of Mancheng County