Why should cotton buds be picked early for high yields?

Removing early buds at the cotton bud stage can increase yield and improve quality. When the cotton plant grows to six or seven branches, it is necessary to remove all the flower buds from the two or three branches at the base. Because the buds are small, they are easy to fall or rot the bolls, and the quality of the cotton produced afterwards is also poor.

The most important thing is that these buds will also consume a lot of nutrients, but the consumption of nutrients can not be high-quality and high-yielding. Cotton plants that remove early buds will grow and develop better.

This can improve the yield and quality of cotton. If the number of buds is small and numerous, it is easy to rot buds, and the quality of cotton is poor. If there are too many buds, too many nutrients will be consumed, and the removal of excess flower buds will promote the vegetative growth and photosynthetic efficiency of cotton, which can lead to high yields.

Because if you don't pick it early, the cotton may fall, and the color of the cotton will be affected, and it will not be sold at a good price.

Pruning at the cotton bud stage is mainly to remove the leaves and branches. The growth of leaves and branches is strong, and the consumption of nutrients is large, which aggravates the contradiction between vegetative growth and reproductive growth. When the fruit branch and leaf branch are identified, the leaf branch below the first fruit branch should be removed, but the large leaf at the bottom of the main stem should be retained to maintain a large leaf area and enhance the photosynthetic capacity.

If you encounter a place where there is a lack of seedlings and broken ridges or the bottom edge of the ground, you can also leave it appropriately.

One or two leaf branches to make the most of the space. The second is the smearing buds. Hair buds grow fast, consume a lot of nutrients, and affect the development of bud bells, so it is necessary to wipe them off in time.

The application of cotton pruning technology has been practiced for a long time in China, and the pruning technology has to remove leaf branches, hit the top heart, hit the edge heart, wipe the buds, remove the invalid buds, cut empty branches, beat the old leaves, etc. There are about 10 labors per mu. Many scientific and technological personnel have long held different opinions on the yield increase effect and economic benefits of cotton pruning, and a large number of pruning experiments have been carried out in various cotton areas.

Due to the different climatic conditions, varieties and management measures in different places, the experimental results are very inconsistent, and the effects of pruning on yield are some showing increased yield and some showing reduced yield. However, after pruning, the boll rot decreased, which promoted early maturity, increased pre-frost flower yield, and high fiber quality. Therefore, most people believe that cotton pruning is inevitable, but it does not have to be too delicate, and it should be appropriately simplified according to local climate, varieties and other conditions.

In general, cotton fields should be topped and foliage removed; Dry and thin cotton, only topping is fine; In addition to topping and removing leaves, other pruning measures should be taken, either to control fertilizer and water, or to use chemical pesticides. In order to promote early maturity, reduce post-frost flowers, reduce rotten boll and improve fiber quality, necessary pruning measures should be taken. Experiments have proved that the cultivation technology of proper control of fertilizer and water and chemical control can better control the individual growth of cotton and the development of the population.

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The thunder phase is a phase of vegetative growth and reproductive growth. Cotton is more sensitive to water and fertilizer. If the water and fertilizer are insufficient, especially the nitrogen fertilizer is insufficient, it will cause poor vegetative growth and less dry matter accumulated by photosynthesis, resulting in small trees and few buds, which cannot build a high yield shelf, and premature decay and reduced yield.

If there is too much water and fertilizer, especially too much reoxygen, the excess vegetative growth is too long, and a large amount of dry matter accumulated by photosynthesis is consumed in vegetative growth, resulting in the crazy growth of cotton core belt plants and a large amount of bud bells falling off. Therefore, this period should not only grow trees, but also grow steadily, which is a critical period for building a good yield shelf. The most suitable temperature for budding is 26-30 °C.

The right temperature is very beneficial for rooting and budding. Temperatures below 19 affect buds; Above 30 The terminal bud grows vigorously and the vegetative growth is accelerated. Therefore, the principles of budding cotton field management are:

Efforts should be made to coordinate the contradiction between the nutritional growth and reproductive growth of cotton, and to scientifically manage the "sky, the earth, and the appearance", so as to "promote the weak and control the prosperity".

a. The purpose of timely pruning and pruning of cotton is to allow the side buds to develop into branches, a wrong;

b. Timely pruning and pruning of cotton can reduce the concentration of auxin pants in the side buds, and can not make the fruit branches get enough nutrients, b is wrong;

d. The purpose of timely pruning and pruning of cotton is to remove the apical buds and reduce the concentration of the side buds, so as to remove the apical dominance and let the side buds develop into branches

Therefore, d