The growth height of soybeans is too high, so how can it be effectively controlled?

Fight and control the drug. Most soybean seedlings will be sprayed with paclobutrazol, which can prevent the synthesis of growth promoters in soybeans, thereby controlling the growth of soybeans. Paclobutrazol is generally used when soybeans are flowering, and can be used together with insecticides and boron-molybdenum fertilizers, which can not only control the growth of soybeans, but also prevent the occurrence of pests and diseases, killing two birds with one stone.

Although some soybean seedlings grow very tall, they cannot be injected with paclobutrazol when they are not flowering.

With paclobutrazol, it is a plant growth regulator, which has the effects of delaying plant growth, inhibiting stem elongation, shortening internodes, promoting plant tillering, increasing plant stress resistance, and improving yield.

Everyone knows that normally growing soybeans should be sealed at the beginning of the year. Then when it came to Sanfu, I found that the growth was too vigorous! People should have noticed it a long time ago.

There should be two problems solved! The first is chemical control, that is, spraying chlormequatin, and the other is spraying potassium dihydrogen phosphate to strengthen the rod and resist lodging. At the same time, it has the effect of promoting precocious puberty.

As for pinching the tip and plucking the top, it's pure nonsense!

In the flowering and podding period of soybeans, you can use artificial leaf picking (that is, picking out a few leaves of the plant with too dense leaves), picking the top heart (that is, cutting off the top of the soybean, but not too much, cutting off the top of the main stem 2-3 cm), and vegetative plants (pulling out a part of the plant in a dense place), so that the land can achieve good ventilation and light transmission conditions.

In addition, it needs to be judged by the inflorescence. If only a small number of inflorescences can be found in the upper part of the main stem, and some branches and the lower inflorescences of the main stem are very few, this is also a sign of vigorous growth.

As the saying goes: "soybean early flowering, see the flower on management", so, soybean friends, if you find that the soybeans in your own field have bloomed, you have to carry out a series of management, planting crops and others are not the same, only diligent management, yield can be ***.

Late-maturing varieties, on the other hand, generally bloom and bear fruit in late autumn and early winter. Early-maturing varieties mature seeds 1 month earlier than late-maturing varieties. In the absence of frost damage, it can overwinter with green stems and leaves. The grass period is quite long, which is conducive to grazing and mowing.

Farmers are sprayed with a pesticide called chlormequatin, which will be sprayed about three times according to the growth cycle of soybeans, so as to inhibit the rapid growth of soybeans.

The growth process of soybeans is as follows:

1. Seedling stage.

The radicle of soybean seeds first protrudes from the ovule bead hole, and when the radicle elongates to the same length as the seed, it is called germination. The cotyledon is elongated, the seed coat falls off, and the cotyledons are exposed to the soil surface with the elongation of the hypocotylyl, and the seedlings are called when the cotyledons are elongated. The conditions are suitable, and the seedlings can emerge 4 to 6 days after sowing.

More than half of the cotyledons in the field are unearthed for the emergence stage.

2. Seedling stage.

Soybean from the seedling to the flower bud differentiation before the seedling stage, after the emergence of 2** leaves, its young stem continues to elongate, the above two pairs of single leaves immediately, at this time called the single leaf stage. As the young stem continues to elongate, the first compound leaf grows is called the 3-leaf stage. The growth rate of the aboveground part was slower at the 3-leaf stage, and the growth rate of the underground root system was faster to form nodules.

At this end, the root system is initially formed and begins to require more water and nutrients. The seedling stage is about 20 to 25 days, accounting for 1 5 of the entire growth period. This period is the long root period, we should pay attention to squatting seedlings, strengthen field management, achieve seedlings whole, seedlings even, seedlings strong, and lay the foundation for bumper yields.

3. Flower bud differentiation stage.

The differentiation period of soybean from the beginning of flower bud to the first flower is the flower bud differentiation period, which generally lasts about 25 to 30 days. When 4 5 compound leaves appear, branches begin to occur in the lower part of the main stem, and flower buds are differentiated at the same time.

4. Flowering and podding stage.

Soybean is in flowering from the beginning to the end of flowering, the flowers are small, born on the top of the leaf axils or stems, and the number of flowers on each flower cluster varies depending on the variety and cultivation conditions. The rate of flower drop is high, so the number of pods per flower cluster is small.

5. Drum grain stage.

Soybeans begin to expand from the beans in the beans until they reach their maximum volume and weight. The dry matter accumulation within the seeds increases slowly for 10 days after flowering and rapidly for the next 7 days, with most of the dry matter accumulating in about 21 days after that.

6. Maturity period.

The soybean leaves are yellowed and dehydrated, showing the inherent characteristics of the variety, and the water content of the seeds has dropped to less than 15% until there is a slight sound in the English when the plant is shaken, which is the maturity period.

The growth height of soybeans is too high, to effectively control it, it is the best, that is, to beat the top of the soybean tweed, and then, it will be produced from the side branches, not too high.

Answer: When the soybean growth is too high, it can be controlled by spraying an appropriate amount of crop booster.

If the height is too high, it means that the fertilizer has grown to the height, and there will be fewer beans.

Soybeans, grow too tall, that is, its growth is uncontrolled.

Arthrothylamine or booster can be sprayed.

Summary. Pesticide prevention and control, like other crops, is generally used paclobutrazol, which needs to be controlled and applied in accordance with the specified dose. If you find that the soybean growth in the field is very high, if you don't see the flower, you can't spray.

The growth height of soybeans is too high, so how can it be effectively controlled?

Hello, I have seen your question and am sorting out the answer, please wait for a while Pesticide prevention and control, like other crops, paclobutrazol is generally used, and the respect code needs to be controlled in concentration, and the dosage is applied according to the instructions. If you find that the soybean growth in the field is very high, if you don't see the flower draft, you can't spray.

Hello teacher, soybeans are growing very high and have not seen flowers, what will be the consequences of playing paclobutrazol.

According to the growth of soybeans, it is also possible to control the prosperity before flowering.

Teacher, can paclobutrazol be used in small amounts many times.

Yes, it is usually divided into two or three times.