At present, corn is in a small trumpet period, a large trumpet period, and a tasseling period. Due to the recent precipitation process, farmers are reminded to take remedial measures according to actual conditions to strengthen field management to reduce disasters and ensure production.
Pay close attention to soil moisture drainage San
At present, crops are in a rainy period, and localities must organize manpower to increase drainage and diversification. Dispatching large machinery to clear the main road of drainage, increase the amount of flood discharge, dredge the drainage ditch, organize farmers to ditch into the ground, and assault the water in the field. Land plots with no clear water should seize the favorable opportunity of the intermittent rain period, organize manpower digging and draining, and reduce the humidity in the field, enhance soil permeability and improve the crop rhizosphere environment.
Timely supplementing quick-acting fertilizer
Most of the corn is in the period from the big bell to the heading stage, which is a key period for the growth of corn. The plots that failed to fertilize due to continuous rainfall in the previous period should be closely followed. In particular, in the previous stage, the absorption capacity of maize roots decreased, and appropriate quick-acting nitrogen fertilizers such as urea should be added to promote the growth and development of maize. The plot of land with a yield of about 500 kilograms per mu can be applied with 15 to 20 kilograms of urea per acre and about 10 kilograms of potassium sulfate. Fertilization should be carried out by ditching or using mechanical sputum to avoid spreading. It is necessary to prevent premature aging of corn early, and apply about 7.5 kg of urea per mu in the grain filling period. Prevent lodging
In the land that is prone to lodging, measures such as cultivating and cultivating soil can be adopted to promote the development of aerial roots, increase the application of potassium fertilizer, remove weak plants to improve the population structure, and improve the lodging resistance of plants. For plants that have fallen, the plants can be straightened as appropriate, and the soil around the base is compacted.
Do a good job in pest control and control
Focus on the prevention and control of worms, corn borers, mites and other pests and brown spot, large spot disease, rust and other diseases. The armyworm can be sprayed with 50% phoxim 1000 times solution. Ear worms such as corn borer can be controlled by 90% trichlorfon 800 times droplets. Corn glutinous rice can be sprayed with 50% chlorpyrifos 8 to 10 grams per mu or 10% imidacloprid 10 to 15 grams per acre plus 45 kilograms of water. Brown spot disease, large spot disease, Curvularia leaf spot disease can be sprayed with 50% carbendazim 500 times solution, and rust can be controlled by spraying 20% ​​of rusting emulsifiable concentrate with 75-100 ml per acre.
Do artificial pollination
It is necessary to pay close attention to the pollination situation of corn and take timely measures. High-yield research can be used for artificial emasculation and supplementary pollination. In the case of continuous rain or extreme high temperature during the flowering and pollination of the field corn, it is necessary to take remedial measures such as artificial supplementary pollination to effectively increase the seed setting rate and strive to increase the number of grains per ear.
Appropriate late harvest
This summer, the corn live broadcast area is large, and the number of sunshine hours in the previous period is small, and the lighting conditions are poor. In particular, the light and accumulated temperature compensation are needed. All localities should pay more attention to the suitable late harvest work. It is necessary to promote the large-scale contiguous film and the construction system to eliminate the ideological concerns of farmers who are afraid of stealing fears; to promote the joint promotion of agricultural machinery and agronomy, the agricultural operators and farmers will act together to prevent the combine harvester from going to the ground too early. Generally, plots should be harvested at the end of September and early October. Land plots that are planted later and those with long growing varieties should be harvested around October 10.
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