The phenomenon of excessive growth of vegetative organs such as stems, branches and leaves of cotton plants and the loss of balance between vegetative growth and reproductive growth is known as an animal grower. After the emergence of cotton buds, vegetative growth and reproductive growth are carried out simultaneously. If vegetative growth is too fast and reproductive growth is inhibited, it will result in the shedding of the bells, and in severe cases, the phenomenon of no belling will occur.
The reason for the absurdity is mainly the application of fertilizer and excessive water. The bud to the beginning of flowering is the period of the most nutritious growth of cotton. If the supply of nitrogen fertilizer is too much, the ratio of carbon and nitrogen metabolism will be imbalanced and the vegetative organs will grow too quickly. In the cotton area of ​​the Yellow River Basin, if the amount of nitrogen fertilizer is excessive during the period of budding, the early rain season or the rain after watering can easily lead to cotton growth.
Methods to Control Appetite Reasonably Fertilize and Irrigate: Under the condition of applying base fertilizer to plastic film cotton, it is not necessary to apply conventional fertilizer. In the high-yield cotton fields with medium and high fertility, fertilization can no longer be applied during the bud period. All kinds of cotton fields to re-apply flower bell fertilizer. On the basis of filling the bottom of the drowning water, no irrigation is required during the seedling stage, and the first irrigation time is appropriately postponed for the bud stage to carry out the “seedlingâ€. Deep cultivator: cut off part of the root system, inhibiting the growth of cotton plants too quickly. If the phenomenon of leggy is found from bud stage to early flowering stage, the cultivator is used to deeply cultivate 12-16 cm on the side near the root of the cotton plant and cut off part of the root system to effectively control the growth in a short period of time. Systematic control: Dinocycline control is an effective measure to control cotton growers. Generally, the first time of chemical control should be carried out during the budding period of cotton, and the amount of mu should be controlled at 0.3 to 0.8 grams; the entire growth period of cotton needs to be controlled 3 to 4 times, and the principle of “before light and heavy†should be mastered. It can be flexibly used according to the specific conditions of the species and the local climate. Pruning: When the cotton plants appear to be long, some of the main stems and leaves may be removed and the vegetative growth of the cotton plants may be inhibited.