Cotton encounters disaster management

Cotton (19915, 5.00, 0.03%) is a crop that is more resistant to cockroaches. It has been observed that cotton plants are flooded for 48-72 hours, and the plants are intact after drainage; after ten days of flooding, the leaves are all shed, the main roots are rotted half, only the growth points are not dead, the water is removed and managed in time, and after 20 days, the cotton plants are It can resume growth; with the flooding, cotton can not die for more than 20 days and has a harvest. It can be seen that as long as the growth point of cotton is not dead, the field management will be strengthened in time, and a good harvest will still be obtained. Based on the experience of all localities, managing the cotton that suffered from the disaster is "five timely":

1. Eliminate stagnant water in time

Although the plant can still grow after the water is accumulated in the cotton field, the flooding time is too long, which will seriously affect the root activity, which will easily cause a large number of leaves and buds to fall off. It is necessary to drain the water in time to minimize the time of water accumulation in the field.

2. Timely support seedlings and wash seedlings

Cotton is flooded and blown by the wind, and the roots are damaged. The cotton plants often fall down. After drainage, they must be straightened and straightened, and the sludge on the leaves and branches should be washed away to facilitate photosynthesis and promote plant growth.

3. Timely cultivating and cultivating soil

After being drained by the cotton field, the soil is poorly smothered, and the water, gas and heat conditions are seriously dysfunctional. It is necessary to cultivate early, remove the knot, and combine cultivating to cultivate soil to increase the soil temperature in the rhizosphere of the plant and prevent lodging.

4. Add fertilizer in time

After the cotton field is flooded, the soil nutrient is lost a lot, and the root absorption capacity is weak. It is very beneficial for the cotton plant to restore growth and increase the autumn peach in time. Before the cotton plant resumes growth, the foliar spray fertilizer is mainly used; after the cotton plant resumes growth, it can be used to apply carbon ammonium 10-15 kg/mu or urea 5 at a distance of 10 to 13 cm from the cotton plant. ~7.5 kg/mu.

5. Timely prevention and control of pests and diseases

After the affected cotton plants resumed growth, the branches and leaves were young, and there were many aphids in the early stage. Later, they were susceptible to cotton bollworms and cotton small bridges. Therefore, it is necessary to cure the disease early and cure it. Every leaf must be guaranteed, and each bud (bell) must compete to maximize the yield per plant. At the same time, due to the high humidity in the field of the cotton field, it is easy to cause rotten bells, and it is necessary to strengthen prevention and control. In addition, the cotton that suffered from the disaster should delay the topping time (usually 5 to 10 days later than normal cotton), timely watering in the autumn drought, and artificial ripening in the later period.