corn
Draining in time to prevent loss of production
Sudden turmoil may cause corn roots to fall. Severe blocks of corn will be tiled with water accumulation. If no timely drainage and production self-rescue occurs, there will be a decline in crop production and no harvest in autumn. In order to recover the losses, agricultural experts suggested that farmers' friends should respond in a timely manner: First, flooded fields should be promptly removed after the rain to prevent the long-term high-temperature water from scalding the corn, leading to the death of corn. The second is that for corn with low plant weight and heavy lodging, it can be artificially erected to cultivate the soil and promote recovery. The third is for plots with higher plants, pollinated and more fallen stems. Do not raise the seedlings to prevent the root system from being torn down and cause plant death.
Rice
No immediate drainage of roof blocks
Continuous torrential rains may cause rice fields to accumulate water, which can easily cause hail damage. Prevention must be done in advance to clear the ditch and prevent hail damage.
Once flooded, drain the water in time, pay attention to the edge of the water and wash the leaves, wash off the mud attached to the rice, in order to facilitate the photosynthesis of the leaves. At the same time, attention should be paid to the control of bacterial blight and rice blast disease. Can be used 20% Ye Kuning wettable powder 600 to 800 times liquid, 20% Thiobacillus copper suspension 600 to 800 times liquid to control bacterial blight; for rice blast, can choose 75% tricyclazole wettable powder 1500 ~ 2000 Times of liquid, 40% rice bran oil 800 to 1000 times liquid for prevention and treatment.
vegetables
Shading and cooling, pre-rain protection
First, cover the light and cool it down.
Today, many vegetable growers use shade nets, spray cooling agents, and spray mud on the shed film to reduce the transparency of the shed film and reduce the light in the shed, so as to reduce the temperature of the shed. Although there is no cost investment in splashing mud, shading is uneven and it is easily washed by rain. Although shading nets have a good shading effect, they are cumbersome to use and need to be covered regularly every day. Cooling agents are not easy to clean and are best used on old membranes.
At the same time, proper pruning can be maintained to maintain a reasonable number of leaves, promote robust growth of plants, avoid direct sun exposure to the fruit leading to sunburn. At noon, the temperature in the shed is generally high, and the evaporation of the leaves will increase, making it easier for the leaves of vegetables to roll up.
In order to avoid high-temperature obstacles in vegetables in the shed, it is necessary to pay attention to open the upper and lower vents of the greenhouse, so that the cold air outside the shed and the hot air in the shed can form convection and accelerate the discharge of hot air. Can also be installed in the shed to spray the micro-spray to reduce the greenhouse temperature, this can also play a role in increasing the air humidity in the shed, to prevent the stigma of vegetables drying style, promote pollination, to prevent falling flowers.
Second, the protection before the rain can not be less. One is to dig the drainage ditch in advance to prevent rainwater from pouring back. You can dig a drainage ditch equal to the length of the greenhouse at the front of the greenhouse. It is about half a meter wide and about 30 centimeters deep so that the water flowing down the greenhouse can drain away at any time. The second is to cover the film or non-woven fabric to prevent the back wall and east-west gables from being saturated with rain. The cover is covered with a film or non-woven fabric, and the rainwater can flow down and does not wet the shed, and it can also prevent wind. Since the film is aging rapidly and easily scratched, it is also necessary to check the condition of the film covered by the back wall at any time before heavy rain arrives to ensure that there is no water leakage.
Finally, strengthen the prevention and control of diseases.
High temperature and high humidity can easily lead to diseases such as downy mildew, disease, powdery mildew, anthrax and other diseases. For example, downy mildew can be sprayed with 72.5% of procymidone 800 times liquid, 25% of trehalose wettable powder 600 times, etc.; commonly used 75% chlorothalonil WP 600 times, 50% urea cyanide Wet powder 1500 times, 70% mancozeb wettable powder 600 times and other spray; anthrax can be used 50% Prochloraz WP 1500 times, 25% azoxystrobin suspension 2000 times spray.
Fruit trees
Clearing the garden in time and strengthening management
First, clean up the orchards and reduce the pathogens. Timely clean up the hail, debris and fallen fruit in the orchard. For the orchard with silt and water after the disaster, the water should be drained in time to remove the mud and expose the dried fruit branches. For the hard-hit orchards with broken branches and shattered leaves, the land will be completely cleared of fallen leaves and fallen fruit, buried deep in the digging hole, and the fruit with no commercial value will be removed, and the fruits of some small pits will be retained, reducing the loss of the year.
Second, spraying pesticides in time to prevent diseases. Every 10 to 15 days, spray a fungicide such as thiophanate-methyl, bactericide, bactericide, bacteria must clear, carbendazim, etc., and spray 2 to 3 times to prevent the invasion of bacteria.
Third, loosen the soil and grow strong trees. After thunderstorms and hailstorms, the soil should be continuously turned over 2 or 3 times in order to disperse excessive water in the soil, improve the permeability of the soil, and restore the physiological activities of the roots, so as to achieve the purpose of rooting and strengthening the trees.
Fourth, topdressing supplements and restore vitality. Timely spraying foliar fertilizer to solve the problem of tree nutrient deficiency; underground chase application of balanced NPK fertilizer, each strain 0.5 to 1 kg. After the fruit trees are restored to life, fertilization is mainly based on farmyard manure, and suitable amount of fertilizer is applied. In drought, fertilize with fertilizer.
Fifth, apply a medicament to protect the wound. After the trunks of the fruit trees, the main branch, and some large side branches are damaged by hail, the upturned rotten skins should be cut off in time, and the rot and other agents should be applied to promote wound healing. For wounds with an area of ​​more than 1 square centimeter, the medicine is also coated with plastic bags to accelerate wound healing.
Sixth, pruning branches, reasonable leaving branches. After the disaster has been eliminated, the broken branches shall be cut off promptly. For branches with high density, severe tassels and unrecoverable twigs, they must be cut from the base or end of the crop, and the remaining branches or branches must be kept to avoid injury. Grease your mouth to prevent dry rot. Because there are more wounds on the tree, the buds under the wound will germinate quickly. The newly sprouted shoots should be properly preserved according to the shape of the tree, so as to make up for the vacancy of the broken branch, and to disturb the sprouting of the other tree and the root of the tree. . Cut winter as early as possible to reduce evaporation and nutrient consumption. If you can not identify the life and death of branches, you can delay the pruning in the spring of the following year, so as not to mistakenly cut. Trimming should be light, leaving more branches.
Seventh, managing flowers and fruits, improving quality. Immediately after the disaster, the bad fruits of bruises will be wiped out to save nutrients and restore the tree potential as soon as possible. If the tops of trees are interrupted and broken, some fruit bags will be broken, and the fruits will be exposed directly under the hot sun. They are prone to sunburn. The bags should be filled to improve the quality of the fruit and reduce the loss.
Eighth, step up prevention and control and restore tree vigor. After fruit trees suffer from weaker tree vigor and reduced disease resistance, special attention should be paid to spray protection. First, we must promptly spray 2-3 times with thiobacillin and other fungicides on the orchard; second, we must spray 5 to 7 Baumedu limestone sulfuricides after deciduous till the seedlings of the following year, and at the same time, we must make pests of different ages. Anticipate prevention efforts to ensure that the trees recover as quickly as possible.
Urine Analyzer,Urine Analyzer For Lab,Lab Hospital Clinical Urine Analyzer,Urine Chemistry Analyzer
Guangdong Widinlsa International Co.Ltd , https://www.guangdongwidinlsa.com