When planting soybeans, why can t you apply too much base fertilizer?

Soybeans don't like barren land, and they can't produce high yields without good soil. Soybeans just don't like nitrogen fertilizers, and other phosphorus and potassium fertilizers are still in demand. It is not a little nitrogen fertilizer and no need for soybean in the early stage, the soybean seedlings do not flourish, do not grow, the root system is not thriving, it is impossible to constitute a nodule, there is no nodules, nitrogen elements cannot run to the root of the bean, and there is no saying that rhizobia nitrogen fixation.

However, without the application of other fertilizers, the plant will not be strong and the pods will not be plump. If it is planted in a barren soil, it can only be a tree with few small pods and shriveled soybeans. Usually there are 3 grains per pod, but it is good to have one in this kind of field.

Therefore, soybean planting is the same as planting other farming, except that nitrogen fertilizer is not required in the later stage.

Corn and soybean interplanting soybeans like light, but also slightly shade tolerant, as long as there is dense light, it will not affect the photosynthesis of soybeans. Soybean needs nitrogen, phosphorus and potassium nutrients in the process of growth, but because its plant is relatively short, therefore, the demand for nitrogen, phosphorus and potassium is not particularly large, moreover, there are rhizobia on the rhizome of soybean, and its nitrogen fixation effect is very strong, which can completely fix and absorb the nitrogen in the soil, so as not to be wasted due to nitrogen soaking deep into the soil.

Leguminous plants have their own nodules, which can produce nutrients by themselves, so they do not need to apply too much fertilizer, if there is too much fertilizer, it can make the leaves grow wildly, thus affecting the fruit setting rate. The leaves are too vigorous, which affects the pollination of the beans, and there are many empty corners and the seeds are not full. If the original seedling growth is relatively good, and then apply nitrogen fertilizer, it will make the soybean grow, affect the growth of the pod, the nutrition is robbed, and the soybean will be of poor quality, or the phenomenon of empty shell, which will seriously affect the yield, if the soil fertility is not very sufficient, you can apply a little grass ash or rotten farm fertilizer, with the use of potassium fertilizer and phosphate fertilizer, you must control the use of as little or no nitrogen fertilizer as possible, as mentioned above, the root system of the soybean itself will indirectly provide nitrogen, less or no nitrogen fertilizer, Proper application of potassium fertilizer and phosphate fertilizer can balance the three elements of nitrogen, phosphorus and potassium necessary for action, so that crops can grow better.

Planting soybeans generally does not need to apply base fertilizer, but if the soil is too thin, when planting soybeans, it is still necessary to apply appropriate nitrogen fertilizer at the seedling stage, with potassium fertilizer and phosphate fertilizer, and there is no need to apply nitrogen fertilizer in other periods to avoid counterproduction.

In this way, it will destroy the fertility of the soil, which may lead to uneven fertilization, and in severe cases, it will lead to the growth rate of crops becoming slower and slower, and the yield of crops will be lower and lower, and the growing environment of soybeans is generally poor sandy soil.

Because this will affect the normal growth of soybeans, it will also affect the production of soybeans, and it will also cause soybeans to have pests and diseases, and it will also make soybeans dry up in the roots, and if the situation is very serious, it may also cause soybeans to rot in the roots.

In this case, the roots of soybeans will rot, and this disease problem will occur, which will affect the yield of soybeans.

Soybean planting also needs to be fertilized! Nitrogen topdressing at the early flowering stage can promote the development of flowers and the growth of young pods. Generally, 4-5kg of urea per mu is sprinkled while it rains, and the plant can be reduced or not applied as appropriate if the plant grows too vigorously.

Ammonium molybdate or superphosphate aqueous dilute solution can also be sprayed on the foliar surface of soybean seedling and early flowering stage respectively to improve fertilizer efficiency and increase yield. From the first flowering of soybeans to the pod-setting and grain bulging stage, if the weather is dry, it should be watered at the appropriate time to prevent the yield from being affected by drought.

What are the characteristics of soybean fertilizer?

1. The flower pod stage is the peak of nutrient absorption, and the flower pod stage is not only the peak period of dry matter accumulation, but also the peak period of nitrogen, phosphorus and potassium nutrient absorption, for example, from the end of the branch stage to the early stage of the drum grain, the cumulative amount of dry matter and nitrogen (N) and phosphorus (P2O5) nutrients account for the total amount of the whole growth period, so the first flowering is the key period of top dressing.

2. The nitrogen requirement is large, but the nitrogen requirement of the nodule can fix nitrogen in soybean is large, which is twice the phosphorus demand; Because the nodules can fix nitrogen, which can meet 40% to 60% of their own needs, nitrogen fertilizer can be applied less. However, it cannot be left unused because the nodules lack the ability to fix nitrogen before they grow. It should be noted that the nitrogen application rate should not be too large, otherwise it will inhibit biological nitrogen fixation.

3. The calcium demand is large, sulfur-loving, and the calcium content of soybean sensitive to molybdenum deficiency is larger, and the calcium content of its grain is more than 10 times that of wheat grain; Soybean likes sulfur, and the application of potassium sulfate can improve the quality of soybean more than potassium chloride. Molybdenum contributes to nodule formation and improves nitrogen fixation, and soybeans are sensitive to molybdenum deficiency. Therefore, it is necessary to pay attention to the deficiency of calcium, sulfur, molybdenum and other trace elements and fertilization correction.

4. Intercropping with gramineous crops can prevent and control iron deficiency with leguminous and corn intercropping, soybean nodules can fix nitrogen, in addition to self-use, it can also be used for corn. The roots of gramineous crops such as corn can secrete wheat root acid, and the ability to activate insoluble iron in the soil is strong.

5. Avoid heavy stubble and heavy stubble to inhibit root nodule nitrogen fixation, and cause partial absorption of soil nutrients, coupled with the autotoxic effect of root exudates (i.e., allelopathic effect), it is easy to make soybean deficient and infected with pests and diseases. These problems are particularly prominent in Heilongjiang Province and other soybean producing areas.

Of course, you need to fertilize, start topdressing a month after planting soybeans, it is best to use organic fertilizer, the concentration of fertilizer should not be too high, and there is no need to water it after fertilization. After that, fertilizer can be applied every half month.

Different regions, there will be deviations in the soil, soil quality, light, temperature, rainfall and other factors that affect the growth of soybeans, so there will be certain differences in fertilization methods, fertilization time and fertilizer amount.

In Lao Zhao's hometown of Yunnan, although it is located in a remote area, the soil in most areas is fertile, loose and moderately sunny. Therefore, in the whole growth process of soybeans, we do not need to apply any fertilizer to soybeans (including base fertilizer, seed fertilizer, and top dressing).

Why can I grow soybeans without fertilization?

In addition to the fertile soil in Yunnan, the main reason is that soybean has a well-developed root system and strong adaptability, and it is not a fertilizer-loving crop, so it does not require high fertilizer. As long as the soil remains loose and not barren, it can absorb nutrients from the bottom of the soil through the root system, and thus maintain the growth of soybean plants and fruits.

What is the most important factor in the growth of soybeans?

In the whole growth process of soybeans, the requirements for temperature and moisture are the highest, that is, as long as the temperature and moisture are moderate, the high yield of soybeans can be guaranteed.

Soybean is a temperature-loving crop, the temperature requirements are extremely high, when the temperature is lower than 10, soybean seeds will not germinate; When the temperature is below 15, the soybean plant stops absorbing nutrients, and it is difficult to flower and set fruits, which limits most varieties of soybean to be planted only in summer and autumn.

Soybeans are also water-loving crops and have a large demand for water. Especially in the germination and flowering period of soybeans, sufficient water is needed to ensure the germination rate of seeds and the fruit setting rate of soybeans.

In Lao Zhao's hometown - Yunnan, soybeans are generally planted on the ridges of rice fields, which is often referred to as rice and soybean interplanting, so that the planting method has the following advantages:

1. There is sufficient water in the paddy field, which can provide sufficient water resources for soybeans.

2. Rice fertilization is more times, after fertilization, most of the nutrients are left in the water, and soybeans can absorb the nutrients in the water while absorbing water, killing two birds with one stone.

3. The soybean root system is well developed, which can play a role in stabilizing the ridges.

4. Planting soybeans on the ridges of rice fields can inhibit the growth of weeds.

Of course, the above is only the actual situation of planting soybeans in Lao Zhao's hometown, and it is not available in all regions, and the specific fertilization timing, fertilization method, and fertilizer amount have to vary from place to place.

1. Increase the application of high-quality organic fertilizer that has been decomposed. More than 20,000 kg of organic fertilizer with an organic matter content of more than 8% should be applied per hectare of soybean field, or more than 1,000 kg of pure farm fertilizer, combined with land preparation as a base fertilizer.

Second, the use of soil testing formula fertilization technology, nitrogen, phosphorus, potassium reasonable matching. Generally, the amount of fertilizer per hectare is 18 36 kg of pure nitrogen, 46 92 kg of phosphorus pentoxide, and 30 60 kg of potassium oxide, which is converted into the actual amount of chemical fertilizer used. At the same time, medium and trace element fertilizers were increased, and zinc sulfate was applied 15 to 30 kg per hectare.

Need. Fertilization is required to grow any crop to increase the yield and quality of the crop.

When planting soybeans, why can't you apply too much base fertilizer? Yes, you can't apply too much basal fertilizer to grow soybeans. The soybeans grown in every household in our village are not fertilized with nitrogen.

Applying too much quivering nitrogen fertilizer will cause soybeans to grow in vain, and the stems and leaves will grow vigorously, but the effect is very poor. Soybeans also don't like barren land. Due to the lack of nitrogen in the poor land, soybeans grow poorly and yields are particularly low.

The rhizobia in soybean roots can fix enough nitrogen in the air to ** soybeans. Our village is accustomed to intercropping with maize. The basal fertilizer applied in the corn planting process can meet the demand for basal fertilizer in soybeans.

The nitrogen fixation capacity of soybean rhizobia gradually increases after flowering. Before flowering, nitrogen fixation is limited and soybeans must absorb nitrogen from the soil. If soybeans are planted on poor land with low fertility, the nitrogen required at the seedling stage will not be sufficient for soybean growth.

Soybeans are like barren land, soybeans grow slowly, the plants are short, and the yield is low.

The nitrogen fixation capacity of rhizobia gradually increased after flowering, peaked at the grain filling stage, and then decreased abruptly. From flowering to grain filling, nitrogen nutrients are mainly provided by rhizobia, but some are also partially absorbed and replenished from the soil. Soybeans require more phosphorus and potassium fertilizers.

Phosphorus application can increase yield, and potassium application can increase yield. Therefore, the cultivation of soybeans must be combined with the application of phosphorus and potassium fertilizers.

The lodging yield of soybean is low, and comprehensive control should be strengthened.

Soybean lodging has a big impact on yield. The heavier the lodging, the greater the impact on yield. The earlier the lodging, the greater the reduction in production.

The main cause of lodging in soybeans is usually caused by overgrowth of plants. To prevent soybean lodging, it is first necessary to plant rationally, and the planting density of fertile plots should not be too large. Third, reasonable fertilization.

The proportions of nitrogen, phosphorus and potassium fertilizers should be coordinated, and excessive nitrogen application should be avoided as much as possible. The main idea of the theme is that we should not use too much base fertilizer to grow soybeans, which means that we should not use too much nitrogen fertilizer, otherwise soybeans will grow and collapse in vain, affecting yields.

In addition to the cost of seeds, the cost of fertilizers is also low. Because soybeans themselves have a rhizobia nitrogen fixation effect, which can meet more than half of the nitrogen fertilizer required for high-yield soybeans, soybeans grown in generally fertile soil can apply less nitrogen fertilizer. For soybeans planted in particularly nitrogen-deficient soils, appropriate amounts of nitrogen fertilizer can also be applied at an early stage.

For example, there are old people here. When planting a few rows of soybeans by the ditch, they take out the plant ash they have accumulated at home, light a soybean hole, sprinkle a handful of plant ash, and cover it with soil. It works great.

Because when planting soybeans, too much base fertilizer is applied, which will burn the roots and seedlings and cause the seedlings to die.

This is because doing so can easily lead to plant decay, which seriously affects the growth of the plant.

If you do this, it may affect the growth of the plant and increase the burden on the plant.

Summary. Hello this friend, it depends on what fertilizer you put in. The amount of nitrogen fertilizer should not be used too much, otherwise it will cause the growth of soybeans and lodging, affecting the yield.

Is it correct to plant soybeans by applying too much base fertilizer?

Hello this friend, it depends on what fertilizer you put in Hanwa. Planting soybean base fertilizer can not be used too much, which means that the amount of nitrogen fertilizer should not be too much, otherwise it will cause soybean growth and inverted content, and talk about the old letter to affect the yield.

Apply more base fertilizer to increase potassium and phosphorus, and the phosphorus and potassium fertilizer of Tuanla is still needed, and the bottom fertilizer of the bean planting before the yellow stuffiness is still to be applied to the farmer's organic fertilizer, phosphorus and potassium fertilizer. There are rhizobia on the roots of soybeans, which can solidify nitrogen in the air and soil, and do not need additional nitrogen fertilizer.

During the growth and development of soybeans, the growth of roots will form rhizobia. It specializes in nitrogen fixation in the air, produces oxidation-containing nutrient fertilizer for soybean absorption and utilization, and provides rich nitrogen fertilizer for the growth and development of soybeans**. Soybeans only need to provide phosphorus and potassium fertilizer during growth and development.

Growing soybeans on ordinary soil does not require fertilization. Only when rhizobia has not yet formed at the seedling stage or the nitrogen fixation ability is weak after formation, a small amount of application can maintain the nitrogen fertilizer required at the yellow leaf seedling stage and the phosphorus and potassium fertilizer required at the whole stage. Nitrogen fertilizer is not required for other stages of growth and development, and rhizobia provide nitrogen nutrient fertilizer.

Growing soybeans on poor sandy soils and land with very little humus requires the use of the appropriate amount of nitrogen fertilizer required at the seedling stage, as well as sufficient phosphorus and potassium fertilizers, so that the growth and development of soybeans can be normal and the yield can be increased. In land with very good soil fertility, growing soybeans does not require the application of any fertilizer. Fertilization makes soybean grow too vigorously, affecting growth and development, and reducing yield.

For land with medium soil fertility, potassium fertilizer is suitable for use as basal fertilizer, fire manure and soil fertilizer for farmland with high humus. The use of nitrogen fertilizers should be controlled to avoid soybean booms and affect yields. The soil quality is poor and the land is very poor, so the right amount of nitrogen fertilizer can be added.

The key is to increase the use of phosphorus and potassium fertilizers to meet the demand for nitrogen, phosphorus and potassium ternary fertilizers during the growth and development of soybeans.

After 12 days of soybean emergence, there were only 4-5 nodules per plant, and the nitrogen fixation ability was weak, and there was no residue in soybean utilization. The nodules increased significantly at the branching stage, and about 50% of the fixed nitrogen was given to soybeans. Leguminous plants often have nitrogen deficiency symptoms such as slow growth and light leaf color at the seedling stage. In terms of total nitrogen supply and demand, rhizobia can generally fix 7-10 kg of pure nitrogen per mu, of which 30% remains in the soil and 70%** is given to soybeans; Kilograms of pure nitrogen are needed for every 100 kilograms of soybeans.

There is a large gap between the nitrogen fixation amount of rhizobia in soybean high-yield field and the nitrogen required by soybean, so it is obviously necessary to calculate the fertilizer amount according to the yield requirements.