Home >

Knowledge Of Cotton: Prevent Cotton Seedling Disease &Nbsp; Ensure Seedlings And Seedlings

2011/4/13 13:36:00 60

Current positive value

Cotton seeding

Seedling period.

According to the meteorological department forecast, the average temperature in April is 16.5 degrees Celsius (slightly lower), the monthly extreme maximum temperature is about 30 degrees Celsius, the monthly total rainfall is about 160mm, and the monthly rain day is 12~14 days.

Climate is suitable for cotton seedling disease.

Each county (city) plant protection station to strengthen monitoring, pay attention to check cotton seedling diseases and insect pests, in order to ensure the seedlings, strong seedlings.

1, choose the seedbed.

Choose the soil that is leeward to the sun, convenient for irrigation and drainage, loose soil and fertile soil, and make the seedbed.

2. Do well in soil disinfection of seedbed.

Before tillage and tillage and weed removal, spray the bed surface and cover the film with 50 kg of methyl water and 50 kg of methyl teccan wettable powder for 1 kg.

3. Seed treatment.

Selection of high quality, high yield and high resistance

Cotton seed

For 2-3 days, the seed ripening is increased and the rate of seedling emergence and the speed of emergence are increased.

4, chemical control.

Cotton seedling

When unearthed for 50% hours, 25% times of 3000 times liquid of 25% times of toxin was used to irrigate the roots at the seedling stage or uniformly spray 50% times carbendazim 600-800 times liquid or 70% methyl solution of atropine wettable powder.

Aphid control: in the 20% leaf volume of the three leaf period, the rate of 30% leaf rolls in four leaves period, 50% imidacloprid water dispersible granules could be sprayed.

Prevention and control of underground pests: 50% phoxim emulsifiable concentrate can be irrigated with 500-800 times liquid or 50% phoxim emulsifiable concentrate, 250 g, and 25-30 kg of fine soil.