Agricultural greenhouse greenhouses accumulate water serious, adopt what rescue measure?

The white dew has passed, the weather gradually turns cool, the rain also gradually increases, some areas more suffer the natural disaster such as the heavy rain, the typhoon, causes the agriculture greenhouse the greenhouse vegetable to suffer the different degree flood. So, what measures should agricultural greenhouse greenhouse take to save water and fertilizer, reduce the loss brought by flood disaster? One cleans gully hollow, eliminate water accumulation When the vegetable fields are flooded, the toxic substances increase and the root vigor declines, which affects the growth of plants. When the flood water recedes, it is necessary to quickly open a trench, repair the drainage pipe of the greenhouse, remove the underground water accumulation and lower the underground water level. If the amount of water is large, the soil should be replanted 2 to 3 days after drainage to accelerate the soil oxidation and promote the vegetable growth. At the same time, the use of bio-fertilizers improves the soil environment and provides lost nutrients to promote root growth. Second well irrigation, lime disinfection When the topsoil begins to dry out, use well water irrigation to flush the soil. Do not use well water immediately after drainage to avoid retting. When there is less rain water in the shed, the well water can be used immediately. To the seriously affected vegetable fields, the roots of dead vegetables should be cleaned in time, the mu of 25-30 kg lime disinfection, and fine land. Understand the disaster, classified treatment To understand the disaster, classification treatment for some heavy flooding, but the root system still has absorptive capacity of eggplant, pepper, winter melon and other vegetables, can cut off the overdense branches and leaves on the ground, and use sunshade net for short-term shading, to prevent sudden sun exposure after waterlogging, reduce transpiration, to prevent physiological water loss caused wilting. For other melons and vegetables, part of yellow leaves, rotten leaves and old leaves can be cut off, and appropriate cultivations, soil and tendrils can be made to promote root development and restore plant growth. For beans and leafy vegetables, spray water to wash the leaves, rinse the sludge attached to the leaves, and restore photosynthesis and respiration. At the same time, we should carry out field tillage to prevent soil compaction caused by flooding, resulting in hypoxia of roots and physiological dead roots. Four fertilizer water management, the root outside the fertilizer Soil compaction after rain, the use of mulch to tear off the film, until the soil slightly dry, in time to carry out intertilled loose soil. Strengthen the management of fertilizer and water, recover the root activity of vegetables after the growth of seedling seriously decreased, and the absorption capacity decreased. At the same time, nutrients are easy to be lost in the flooded vegetable fields, so nitrogen, phosphorus, potassium and other compound fertilizer should be applied in time. On fertilizing, should note a meaning cannot be heavy, excessive, otherwise very easy to cause fertilizer harm. Fertilizing should be combined with interplanting. While fertilizing the soil well, the fertilizer can be applied outside the root and sprayed on the leaves with potassium dihydrogen phosphate or other water-soluble fertilizer. Attention should be paid to weather forecast for infrastructure repair, and timely reinforcement of vegetable greenhouses. Due to local conditions, infrastructure materials such as film, sunshade net and pest control net should be unloaded to prevent damage to scaffolding materials such as wind and rain. For the large rainfall, immersion time and the foundation caused by poor infrastructure, to timely repair and maintenance, to prevent the collapse of the greenhouse. Reseeding in time, planting over the flooded time, seedlings have died in the field, such as cabbage, melon, eggplant or other vegetables not resistant to leaching, should be arranged in time reseeding or reseeding work. Priority should be given to planting varieties with short growing period, rapid growth and high yield to ensure farmers' income. 修改翻译结果