Drainage and drainage
It is necessary to dredge Tiantougou, Weigou and Yaogou, eliminate the water in the field in time, reduce the soil moisture, and achieve the purpose of draining water and reducing dirt.
Miao Miao Miao
Immediately after the disaster, the weak, sick, poor and white seedlings were removed. There is a lack of seedlings and ridges in the plots. The seedlings are transplanted with seedlings to make up the seedlings or thickened and thinned. For flooding and lodging of corn seedlings, leaf washing, seedling raising and earthing should be done in time.
Rilled soil
When the ground surface is white after precipitation, timely cultivating tillage is needed to remove soil compaction, promote soil ventilation, improve the rhizosphere environment, and promote root growth.
Early recovery of Miaofei
Maize is a crop that requires a large amount of fertilizers. The locust plague causes serious loss of soil nutrients, and the seedling potential is weak. Therefore, it is necessary to top up the seedlings in the 5-6 leaf stage of the corn, and apply 5 to 10 kg of urea per mu. Look at the growing trend of corn, topdressing 15 to 20 kg of urea per acre. The corn ear should be supplemented with appropriate amount of trace fertilizer timely. Generally, 0.2% zinc sulfate solution is sprayed on the whole plant per acre, sprayed once every 5 to 7 days, and sprayed twice.
Pest control
Due to the accumulation of water in the fields, the humidity of the soil and air is high, and various pests and diseases are easily occurred, such as stem rot, large leaf spot, small spot disease, and corn borer. For the diseased corn field, it is necessary to spray once every 10 days, and apply it for 2 to 3 times. The agent may be selected from the group consisting of zearalenium, dexamethasone, and carbendazim. Prevention of corn borer should be carried out from the jointing stage to the trumpet stage. Poisonous soil can be used to synthesize poisonous soil.
Detasseling and artificially assisted pollination
Can be emasculated either singly or septally. Before the tassels are drawn about 10 cm and the pollen is scattered, grasp the tassels with your hands and lift them up. Be careful not to hurt the blades. The emasculated plants must not exceed 50% of the total number of plants in the field, and no more than 35% of the plants should have fewer plots. Pollination should be conducted within 5 days after flower silking. After the dew had dried at 8 to 11 in the morning, artificial pollination was performed using the pull string method or shaking method, and once every two days, 3 consecutively.
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