Prevention and control measures of dead cotton seedlings

There is a great demand for cotton in our country, and many daily necessities are inseparable from cotton. The cultivation of cotton is also very widespread in our country. If you want to get high yield cotton, you have to start from the seedling tube. Good management of seedlings can ensure at least half of the yield, but cotton seedlings usually die. It happens all over the country, so it affects the final output. So, how can we prevent the death of seedlings? Let's take a look at it.

1. Select superior species

The selection of good varieties is an effective way to prevent the death of seedlings. When we choose varieties, we should choose varieties that are disease-free and harmless and have strong disease resistance. And it needs to be determined according to the planting plots, and some plots are places where there are more dead seedlings, so at this time, we should choose varieties with strong resistance to dead seedlings. In places with low incidence, we can choose varieties with higher yield and strong growth ability to improve the balance of plants, so choosing a good variety is the key to reduce dead seedlings to ensure yield.

2. Reasonable weeding

Many weeds will grow in cotton fields when they are planted. In order to prevent weeds from affecting the growth of cotton, a lot of herbicides are used to control weeds. In fact, herbicides will not only have an effect on weeds, but also inhibit the growth of seedlings and affect them, so we should control the use of herbicides, weed manually as far as possible, spray herbicides evenly and mix with the soil. Don't overdo it.

3. Preparation for sowing

When ploughing the soil in spring, the basic fertilizer should be fully applied and carried out together to improve the fertility of the soil. Determine the amount of base fertilizer according to the planting area, reasonably prepare the nutrients in the base fertilizer, and pour enough water after ploughing 15 days before sowing. Carry out the work of preserving water and soil moisture to provide good conditions for seed germination and emergence. Sowing time should not be too early. When the low temperature is 15 degrees, it is the best sowing time and temperature.

4. Field management

The field management of seedlings is very important. If rainy weather occurs before the seeds germinate, loosen the soil in time to ensure the emergence rate. After emergence and time seedlings, inter-seedlings can provide sufficient growth space for seedlings and reduce the spread of bacteria. Mid-tillage should be ploughed timely and diligently in order to improve the growth of seedlings, make the seedlings grow healthily, and enhance the ability of seedlings to resist death.

5. Pest control

When cotton is in the seedling stage, it is the time when the most diseases and insect pests occur, because the nutrient absorption capacity of cotton in the seedling stage is weak, and the resistance is poor. If the temperature is a little lower, it is easy to get germs, anthrax and other diseases, leading to death. There are also a variety of insect pests, such as bug bugs, ground tigers, etc., which will cause great harm to the growth of seedlings, so we must do a good job in the prevention and control of all kinds of diseases and insect pests.

The above are the specific measures to prevent and control dead cotton seedlings, the editor is only a brief introduction, the specific also need to be found by yourself in the management. Among them, diseases and insect pests should be paid attention to, because the cotton seedling stage is the most vulnerable time, for the growth of cotton is also the most important time, carelessly will lead to a large area of dead seedlings or even no yield.