Affected by the recent typhoon, Shandong Province has experienced a series of heavy rainfall. In some areas, the precipitation exceeded the peak of the same period. Some villages in Shouguang, Qingzhou and Linyi were flooded. The main crops such as greenhouse vegetables, corn and cotton suffered from different degrees of flooding. . Then, what kind of water and fertilizer self-rescue measures should farmers take to reduce the losses caused by floods? Greenhouse vegetables When the gully is cleaned and the water is drained, the toxic substances increase and the root activity declines, which affects the growth of the plants. After the flood recedes, it is necessary to quickly open trenches, repair the drainage pipes of the greenhouses, remove underground water and reduce the groundwater level. If the water inflow is large, it is necessary to cultivate the loose soil after 2~3 days of drainage to accelerate soil oxidation and promote the growth of vegetables. At the same time, use 72.2% chlorfenapyr hydrochloride, 25% azoxystrobin, 58% metalaxyl manganese zinc and other 800-1000 times liquid to irrigate the roots, add 15% amino acid 50 ml per barrel of water to promote Root growth. When the topsoil after cultivating begins to dry, use well water to irrigate the soil, and avoid using the well water immediately after draining to avoid rooting. When the amount of rainwater in the greenhouse is small, well water irrigation can be used immediately. For the heavily affected vegetable fields, the vegetables that have died in the roots should be cleaned up in time, and 25 to 30 kilograms of lime should be applied to the soil for disinfection and fine soil preparation. Understand the disaster situation, classify and treat some vegetables such as eggplant, pepper, melon and other vegetables that are more heavily flooded, but the root system still absorbs. It can cut off some dense branches and leaves on the ground and use the shade net for short-term shading to prevent the darkness after the flood. Exposure, reduce transpiration, prevent physiological loss of water caused by wilting. For other melon vegetables, some yellow leaves, rotten leaves, and old leaves can be cut off, and appropriate tillage, soil cultivation, and vine cultivation are promoted to promote root development and restore plant growth. For beans and leafy vegetables, the leaves can be sprayed with water to rinse the leaves attached to the leaves to restore photosynthesis and respiration. At the same time, field cultivating is carried out to prevent soil compaction caused by flooding, resulting in root hypoxia and physiological rotten roots. After the rain, the soil is squashed, and the film covered with the mulch film should be pulled off. After the soil is slightly dry, the cultivating loose soil is carried out in time. Strengthening the management of fertilizer and water, restoring the growth of vegetable seedlings, the root activity of vegetables was seriously reduced, and the absorption capacity was weakened. At the same time, nutrients are easily lost after the vegetable fields are flooded, so NPK fertilizers and other compound fertilizers should be replenished in time. In fertilization, it should be noted that it should not be biased or excessive, otherwise it will easily cause fat damage. Fertilization should be carried out in combination with cultivating. At the same time as soil fertilization, root top dressing can be carried out, and foliar spray can be carried out with potassium dihydrogen phosphate or plant power 2003, high-yield or other water-soluble fertilizer. Pay attention to the weather forecast, repair the vegetable greenhouse in time, remove the greenhouse film, shade net and insect net to cover materials such as scaffolds and strong rain and heavy rain. For large-scale shed facilities where the rainfall is large and the immersion time is long and the foundation is not strong, it is necessary to repair and maintain in time to prevent the shed from collapsing. Timely replanting, when rushing to plant the fields that have been flooded for too long and the vegetable seedlings have died, such as cabbage, melons, eggplants or other vegetables that are not resistant to immersion, it is necessary to arrange replanting or replanting work in time. Planting short-lived, fast-growing, high-yield varieties can be given priority to ensure farmers' income. corn Strengthening field management of field water will cause some corn to fall. To lift up within 3 days after the corn has fallen, each of the two ridges is tied together, and the ears must be exposed to facilitate pollination. If it is not timely, the corn roots will be easily broken. When cultivating the soil, removing the knots when the water is discharged, when the soil surface is white, the soil should be cultivated in time, the topsoil can be broken, the deep soil moisture can be promoted, the soil permeability can be improved, the corn roots can be restored as soon as possible, and the absorption capacity can be enhanced. . Because the soil water content is too large, the roots absorb the ability of the roots. When the water is accumulated in the field, be careful not to apply the fertilizer. This will increase the concentration of the soil solution and increase the dehydration of the crop. After the water is removed, it can be sprayed with 0.5% potassium dihydrogen phosphate and 3% to 5% urea leaves after 5 pm or cloudy days. cotton After the wilting is eliminated and the root-absorbing ability begins to recover, the cotton plant should be topdressed in time to make the cotton plant transfer to the peak of bud, flowering and ringing as soon as possible. Fertilization can be carried out by a combination of root application and foliar application, with urea or ammonium bicarbonate as the main application, combined with potassium fertilizer and trace element fertilizer. The rhizosphere fertilization should determine the time and dosage according to the damage of the cotton plant. If the cotton plant is damaged lightly, it is generally not necessary to immediately apply fertilizer. When the flowering and bolling period is repeated, the flower and bell fertilizer can be applied again. If the damage is heavier, first look at the seedling condition and then fertilize. Generally, the urea is applied for about 10 kg per mu, and is appropriately postponed. Apply flower bell fertilizer. The topping fertilizer should be determined by further growth conditions, so that deep trenching can be carried out, and the storm will be quickly attacked, and the cotton will be transferred to the peak period of increasing, bud, flowering and ringing as soon as possible. At the same time, foliar spray fertilizer can also be used as a supplementary measure for rhizosphere topdressing. It can be sprayed with a 0.2% potassium dihydrogen phosphate solution and a 2% urea solution mixed with a plant growth regulator or the like. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone YT-68 YT-68 Shenzhen Sunshine Technology Co.,Ltd , https://www.yatwin.com