What to Do About Cotton Staying Green and Maturing Late? The Latest Solutions Are Here
Cotton cultivation is very common in our country. When growing cotton, if you want high yield and high quality, then it requires careful management. If managed improperly, then many problems will appear during the cotton's growth and affect the cotton's growth. Staying green and maturing late is one of them, so what exactly is cotton staying green and maturing late? And what should be done about it? Below, the editor will give you a brief introduction. Let's take a look together!
1. What Is Staying Green and Maturing Late
During normal cultivation, if in September of each year the cotton leaves are still very dark green, there are few green bolls and not much boll opening, and the axillary buds are still growing continuously, then this means the cotton is staying green and maturing late. During cotton growth, if the early and middle stages are managed improperly, or if it is affected by factors such as weather and the environment, then during the flowering and boll stage or the bud stage, a large number of buds and bolls will drop, causing a serious decline in the number of flowers and bolls. And the nutrients that should originally have been supplied to the fruit for growth have nowhere to go, and can only be supplied to vegetative growth, thereby causing the cotton plant to continuously produce new shoots and axillary buds.
2. Causes of Staying Green and Maturing Late
Some cotton varieties inherently have late-maturing characteristics, and thus are prone to staying green and maturing late. When growing cotton, if the sowing time is too late, then it can also easily cause the cotton plant's maturation time to be delayed, which is also a main cause of cotton staying green and maturing late. Or after autumn, when the temperature drops, when a large amount of nitrogen fertilizer is applied during the cotton flowering and boll stage, or when a cotton field with sufficient nutrients lacks water for a long time, or when continuous rainfall occurs in the late growth stage, and in various other situations, all of these may cause cotton to stay green and mature late.
3. Control Measures
After cotton enters the late growth stage, the amount of watering should be properly controlled according to weather changes and the cotton's growth conditions. If there are signs of premature aging, then appropriate drip irrigation should be carried out, the time for stopping watering should be delayed, and an appropriate amount of fertilizer should be applied. This promotes the growth of cotton roots and enhances the growth capacity of the leaves, thereby increasing the boll-setting rate in the middle and upper parts of the plant. For vigorously growing fields, vegetative growth should be properly controlled, with the main focus on promoting the cotton's reproductive growth, providing air circulation, and avoiding poor ventilation that causes flowers and bolls to drop. In addition, we must also do a good job in the classified management of prematurely aging fields and vigorously growing fields, promoting early maturation of the plants, and preventing and controlling pests and diseases.
4. Preventive Measures
In order to prevent cotton from staying green and maturing late, we should still focus on prevention. In addition to choosing a high-yield and high-quality variety when planting, we must also be sure to control the sowing time well. Avoid sowing too late, which leads to too much fertilizer and water in the later stage, and applying them too late. Then, for cotton plants that grow too vigorously in the late growth stage and have poor permeability, the empty branches and old leaves should be promptly removed. Improve the permeability in the cotton field and encourage cotton bolls to mature as early as possible.
The above is a brief introduction to what to do about cotton staying green and maturing late. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!