Precautions for field management in the middle and late stages of the double-season late rice

The first is to scientifically manage water and promote roots. The field should be moderate, the number of seedlings and the green color of the leaves can be heavy, and other fields can be exposed to the fields and exposed to the fields. After rehydration, adhere to the principle of “mainly running, water regulating, water and gas balance”, scientifically manage water, make moist booting, water heading, dry and wet alternately grouting strong seeds, avoid water prematurely, prevent premature aging. In the later stage, the pipe water should be dry and wet and wet. Generally, only the horse water is poured, leaving no water layer. It is necessary to keep the soil moist, increase the oxygen in the soil, improve the ecological environment of the root system and enhance the root activity. Linyi Fertilizer Network Copyright

Linyi Fertilizer Network Copyright

The second is to rationally fertilize, increase the ear and preserve grain. In the field where the manure has been applied and the population is small, in the early stage of the young panicle differentiation, the key time for rehydration after sunning the field is grasped. According to the growth of the field group, the panicle fertilizer is applied, and the general application of urea is 2-3 kg plus potassium fertilizer. -5 kg. Applying granular fertilizer during the filling stage of the flowering, generally apply 2-3 kg of urea or 0.5-1.0 kg of urea plus potassium dihydrogen phosphate 150-200 g to 50-100 kg of water for foliar spraying to prevent premature aging and promote grain filling. mature. Linyi Fertilizer Network Copyright

Linyi Fertilizer Network Copyright

The third is to move forward and control the rule. Focus on the control of rice planthoppers, rice leaf roller, rice blast, sheath blight and other major migratory and epidemic diseases and insect pests. Scientific selection of pharmacy, and timely implementation of unified defense. The prevention and control of rice planthoppers highlights the “pre-pressure control”, and the use of ethyl pyrethroid, pymetrozine, nitenpyram and other agents at the peak of young nymphs, spray application, to prevent outbreaks at the ear stage; aphids and rice leaflets螟, the use of chlorantraniliprole, tetrachlorfenamide, cyanofluorfen and other agents, focusing on the protection of functional leaves, according to the principle of "pre-slung, tight, and standard drugs", in the middle and late stages of rice control of the main damage generation; The key points of rice false smut and rice blast are precautionary measures before and during the heading stage; the sheath blight focuses on the prevention and control of the tillering and jointing stages, and try to use high-content single-agents to avoid the use of high-content compounding agents to prevent Drug resistance appears and the control efficiency is improved. Linyi Fertilizer Network Copyright

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