Every year from June to September, the rainy season has arrived. The artificial planting of heavy buildings needs to pay attention to the prevention and control of diseases. Generally, the rainy weather is prone to diseases: gray mold, black spot, downy mildew and root rot.
Prepare for the rainy season in time
1. Drainage: Deeply digging the drainage ditch.
2, maintain ventilation: high humidity and no ventilation environment is prone to mold growth.
3, to prevent disease: the syrup can be prepared in advance for about 15 days, spray the syrup as soon as possible, the temperature is too high to apply.
4. Fertilization: Fertilization can be applied to heavy buildings, such as compound fertilizer, biological fertilizer, fermented farmyard manure, and choose regular manufacturers, because the heavy building is also the fastest growing time in the year from June to September.
5, weeding: This season is when the weeds grow lush, the weeds pulled out as far as possible out of the shade shelter dried. Avoid secondary infection of weeds with pathogens.
6. The parent strain of the seed harvesting plant can be sprayed with trace elements: calcium, magnesium and potassium.
Calcium: Increases plant toughness and disease resistance.
Magnesium: Improve photosynthesis.
Potassium: enhances absorption of nutrients.
This makes it easier to increase the maturity of the grain.
Use of compound fertilizer
The compound fertilizer can be mixed with the fine humus soil and fermented and fermented for about 20 days at a ratio of 10 kg of compound fertilizer plus 30 kg of humus soil per mu. Take it out and sprinkle it in the heavy building. (The fertilizer on the blade can be blown off with a two-stroke sprayer)
Disease prevention method
Gray mold: multi-antimycin, pyrimethanil.
Black spot: 10% flusilazole, 10% polymycin, 43% tebuconazole, allicin.
Downy mildew: 50% methacrylate suspension, metalaxyl manganese zinc 80% enoylmorpholine.
Root rot: Bacillus subtilis, refined A. carbendazim, triadimefon, thiram.
Explain: These groups of syrups are used alternately to prevent the suppression of heavy buildings. Root rot is also a headache for many people. In fact, the best root rot is to irrigate roots or mix organic soil in the roots.
Pest control:
This season is aimed at two kinds of nematodes and snails underground.
Nematodes use beta-cypermethrin, and snails use worms.
Foliar pests: generally avermectin + cypermethrin.
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