How long does it take for soybeans to bloom and set pods?

About 55 days.

Extended Links. China is the homeland of soybeans, which have nurtured generations of Chinese along with rice and corn for thousands of years. With the friendly exchanges and business contacts of people all over the world, the golden round soybeans spread to all over the world.

In the 19th century, soybeans were introduced to the American continent and settled in areas with suitable climates, and in the 20th century, the world's soybean production developed rapidly, and the United States became the largest soybean producer. Soybean is the best source of human food and nutrition, and soybean, which originated in China, has made an important contribution to human survival and development.

China is the origin of soybeans and was once the staple food of the Chinese people. Soybean is one of the important food crops in ancient China, and was called "Shu" or "Efu" in ancient times. In the famous poetry collection "Book of Songs" in the Spring and Autumn Period, there is a description of "the Central Plains is picked, and the common people pick it".

Daya Shengmin" records "The art of the shy, the suffocation"; "Xiao Ya Cai Shu" records "Cai Shu Cai Shu, basket of it"; "Wind in July" records "July enjoy sunflower and soybean", "millet heavy, hemp, wheat". Western Jin Du pre-annotation: "Soybeans, soybeans also."

In the Spring and Autumn Period, it was listed as one of the five grains; During the Warring States Period, soybean and millet were called together, ranking first among the five grains. After the Qin and Han dynasties, there were different colors of beans in agricultural production, and people added black, white, yellow, green and other words in front of the name of soybean, collectively referred to as soybean. It shows that soybean has been planted in China for at least 4,000 years.

The 2,300-year-old golden round soybeans unearthed in Houma, Shanxi Province, on display at the Beijing Museum of Natural History are similar in appearance to today's cultivated soybeans. In 1953, in Luoyang, Henan Province, the Han Tomb of Yaogou was excavated to store grain 2,000 years ago, and the words "soybean ten thousand stones" were written on it with cinnabar; At the same time, the unearthed pottery pot was written with the words "National Bean One Bell" 4 characters. It shows the important position of soybeans in people's lives at that time.

In the process of planting, soybeans often need to go through six growth stages from sowing to maturity, which are planting period, germination period, early growth period, branching period, flowering stage, and pod setting stage. The flowering time of soybeans is generally in June and July every year, and it often takes about 30 to 35 days from flowering to fruiting. In the process of curing soybeans, it is necessary to pay attention to the control of temperature and humidity.

In the process of soybean planting, it tends to bloom in June and July, and it takes about a month from flowering to fruiting

How long does it take for soybeans to bloom to bear fruit.

Soybeans often bloom in June and July in the planting process, and it takes about 30 to 35 days from its flowering to fruiting, and its growth cycle is relatively short, from seed sowing to harvest about 5 months, this period must be reasonably maintained.

The flowering period of soybeans will also last for about a month, and it is very sensitive to changes in the weather at this stage, so it should be reasonably maintained at this time, if the temperature is high or low, it will affect the yield of soybeans.

In the process of soybean planting, if the temperature of the gas drying bush is too high, the number of pods will decrease. Therefore, in the process of maintenance, the temperature and humidity must be controlled.

From flowering to fruiting, it often takes about 30-35 days.

The flowering period of a single plant is about 20 days, while the flowering period of an infinite variety is about 35 days or more. The period from the appearance of young pods to the elongation and widening of the celery band of the bean pampers is called the pod-setting stage.

It takes about 50 days for soybeans to set pods from flowering to poding.

Top dressing at the flowering stage, top dressing can be divided into soil root top dressing, and foliar spraying top dressing, soybean has nitrogen-fixing rhizobia to fix nitrogen in the air, but the fertilizer required during the flowering period is relatively concentrated, and the appropriate topdressing of Bika granule compound fertilizer is more conducive to improving the yield of soybean. Generally, about 5 kg of compound fertilizer can be applied per acre, and the time of topdressing is generally arranged after the completion of the topdressing.

In order to improve the flowering and pod-setting rate of soybean, medium and trace element foliar fertilizer containing boron can be sprayed at the flowering stage of soybean + 1500 times liquid pyraclostrobin + potassium dihydrogen phosphate aqueous solution + brassinolide, which can prevent diseases and supplement fertilizer at the same time.

Soybeans generally begin to bloom 45 to 50 days after soybean germination, and the flowering period generally lasts about 30 days.

Soybean flowering is about June to July, and the soybean flowering period can be divided into three periods: early flowering, full flowering and final flowering.

Counting from the day of sowing, generally 50-60 days of flowering, the life of soybean has to go through the process of seed germination, emergence, seedling growth, branching, flowering, poding, drumming, maturity and so on.

About a month after the weight of the soybeans, the flowers of the soybeans are relatively small, and if you don't go out of your way to see them, it will be difficult to see.

If the temperature is not suitable, the temperature of the growing environment is too high or too low, which will affect the pod setting. The most suitable temperature for soybean flowering is 25 28, the relative humidity is 70 90%, when the temperature of the growth environment exceeds 35, soybean will not bloom or the amount of flowers is small, and the stamens will also die, which will affect the flowering and pollination of soybeans, can not be fertilized normally, will make the embryo abortion to form pods. If the temperature is too low, it will also cause a high voiding rate.

Too little or too much rain can also have an impact.

After sowing soybeans, if there is drought and little rain, it will lead to insufficient nutrient accumulation during the growth period, and will also cause soybean grains to be unfruited. If the weather with a lot of rainfall, the humidity in the soil will be too large, so that the absorption capacity of the root system will be weakened, so that the soybean plant growth is not vigorous, the disease resistance and stress resistance are poor, and the soybean grain will also be unreal.

Nutrient deficiencies.

During the flowering period of soybeans, there are certain elements that are deficient in their podding. Some data show that in those soybean fields with partial nitrogen fertilizer and no phosphorus and potassium fertilizer, soybean will have more empty pods due to the imbalance of the ratio of nitrogen, phosphorus and potassium elements. In addition, if the soybean is not selected properly, the sowing is too early, and the molybdenum and boron deficiency can also lead to the summer soybean only flowering and not poding.

Therefore, when planting soybeans, the choice of planting soil and soybean varieties is also very important. And the one rolls.

The impact of pests and diseases.

If the soybean is infected with soybean virus disease at the seedling stage, the situation will also cause the whole soybean to be greedy and green; If you are infected with yellowing dwarf disease at the seedling stage, it will affect the photosynthesis of soybean plants, which will not only cause the postponement of flowering, but also because the plants will have less photosynthesis in the later stage, so even if the flowers and pods are set, it is difficult to drum grains in the later stage. However, if the disease occurs during the bulging stage, there will still be a serious granulation situation.

Soy is an important food in our lives and many people enjoy it very much. Due to the increase in the soybean market in China, its planting area is also expanding. The more you plant, the more problems you have.

For example, after soybeans bloom, they tend not to set pods. However, the yield is seriously insufficient, which affects the planting efficiency. So what to do if soybeans only bloom and don't set pods?

1. Broadcast early at the right time.

The sowing date of soybeans is closely related to their growth and pod setting. Appropriate early sowing can improve the local light and heat utilization. Prevent some late-maturing varieties from affecting the flowering and pod-setting rate due to low temperature in the middle and late stages.

Early sowing of summer soybean varieties can effectively increase yield. Spring sowing is in early May, and summer sowing is in late June. We should control the planting density according to the soybean variety and soil fertility.

Improve the population structure of soybean and increase the flowering and seed setting rate of soybean.

2. Timely dismantling and fertilization.

Timely fertilization is the key to ensuring healthy soybean growth. It is necessary to maintain the nutritional balance of soybeans, apply nitrogen fertilizer reasonably, increase the proportion of farm fertilizer, supplemented by phosphorus, potassium fertilizer and trace elements. The amount of fertilizer should be controlled according to the planting area, and the fertilization time should be determined according to the growth of seedlings.

For example, weak seedlings should be top-dressed, urea before flowering. Then, the foliar fertilizer should be sprayed appropriately during the flowering and podding period, and cannot be carried out in rainy days to prevent the rain from washing away the fertilizer and making the foliar fertilizer ineffective. Then, fertilizer should be applied according to the lack of nutrients in the soil to meet the needs of soybeans for various nutrients, and reduce the pod rate and empty boll rate.

3. Reasonable watering.

Water is also important for the growth of soybeans. Before sowing, in order to prevent soil drought from affecting the germination rate of soybeans, it is necessary to water enough. Ensure the overall seedling rate of soybeans.

Then, the amount of watering should be controlled at the seedling stage, the soil moisture should be appropriately reduced, the development of soybean roots should be promoted, and the lodging resistance of soybean should be improved. During the soybean branching stage, the soil should not be short of water, and the soil should be kept moist to promote flower bud differentiation. Finally, the water requirement of soybean flowering and podding will be greatly increased, which should be able to meet the water requirement of soybean flowering and poding.

But it shouldn't be too much. If there is standing water in the field, do a good job of draining it.

4. Weeding in time.

When managing soybeans, weed control is essential. If the field is full of weeds, the weeds will rob the soybeans of their nutrients. As a result, soybeans lack nutrients, which seriously affects their growth.

Therefore, soybeans only have the nutrients for flowering, but they cannot set podding, which naturally leads to the phenomenon of only flowering and not pod-setting. Moreover, if there is too much morning exercise, it will also reduce the permeability of the field, which has a great impact on the growth of soybeans. Therefore, we must do a good job of weeding when planting, concentrate on nourishing soybean plants, and improve the pod setting rate of soybeans.

Then let's briefly introduce what to do when soybeans only bloom and do not bear fruit. There are often some problems with soybean farming. It is mainly caused by our poor management, and we must do a good job in management and protect our planting benefits.

Part of the expertise** network.

1. Broadcast early at the right time. The sowing time of soybean is very related to its growth and pod set, and appropriate early sowing can improve the local light and heat utilization. Prevent some late-maturing varieties from affecting the flowering and podding rate due to low temperatures in the middle and late stages.

Early sowing of summer varieties can effectively increase yields. Spring sowing should be done in early May and summer sowing in late June. We need to control the planting density according to the soybean variety and soil fertility.

To improve the population structure of soybean and increase the flowering and pod-setting rate of soybean.

2. Timely fertilization. Timely fertilization is the key to ensure the healthy growth of soybeans, we should maintain the nutritional balance of soybeans, rationally apply nitrogen fertilizers, and increase the proportion of farm fertilizers, supplemented by phosphorus and potassium fertilizers and trace elements. We need to control the amount of fertilizer according to the planting area, and determine the fertilization time according to the growth of the seedlings.

For example, weak seedlings should be topdressed with urea at the right time before flowering. Then at the flowering pod stage, it is necessary to spray foliar fertilizer appropriately, not in rainy days, to prevent rain from washing away the fertilizer, resulting in the loss of foliar fertilizer. Then we need to fertilize according to the nutrient deficiency of the soil to meet the needs of soybeans for various nutrients and reduce the rate of pods and empty crops.

3. Reasonable watering. Water is also very important for the growth of soybeans, and it is necessary to water enough soybeans before sowing in order to prevent soil drought and affect the germination rate of soybeans. Ensure the full seedling rate of soybeans.

Then, when the soybean seedling stage is staged, the amount of watering should be controlled, the soil moisture should be appropriately reduced, the root development of soybean should be promoted, and the lodging resistance of soybean should be improved. During the soybean branching stage, water is indispensable in the soil, and the soil should be kept moist to promote flower bud differentiation. Finally, during the soybean flowering and poding period, the water demand will increase greatly, and the water demand for soybean flowering and poding should be met at this time.

However, it should not be too much, and if there is water in the field, it is also necessary to do a good job of drainage.

4. Weeding in time. Weeding is an indispensable part of soybean management, and if the field is overgrown with weeds, weeds will rob the soybeans of nutrients. As a result, soybeans lack nutrients, which seriously affects growth.

As a result, soybeans only have the nutrients of flowering and cannot form pods, and the phenomenon of only flowering and not pods naturally occurs. And if there is too much morning exercise, it will also reduce the permeability of the field, and the impact on the growth of soybeans is also very large. Therefore, we must do a good job of weeding in the planting process, concentrate the nutrients on the soybean plant, and improve the podulation rate of soybeans.