How to write the market capacity of planted corn and change trends?

Major Producing Countries:China, the United States, Brazil, etc.

Global corn production, global corn exports, global corn export patterns, global corn consumption, global corn stocks.

1. Corn production will increase

In 2017-18-2020-21, global maize production increased. In 2020-21, global maize production was 1123277 thousand tons, a slight increase from 2019-20. According to USDA data from March 2022, global corn production will increase significantly in 2021-22.

2. The export volume has risen steadily

In 2017-18-2020 21, global corn exports increased steadily. In 2020-21, global corn exports reached 183697 thousand tons, compared to 2019-20**. According to USDA** data from March 2021, global corn exports will rise to 192626 thousand tons in 2021-22.

3. The United States is the world's main exporter of corn

From the perspective of the distribution of global corn export countries, in 2020 and 2021, the United States exported 68,558 thousand tons, accounting for more than 37%; This is followed by Argentina.

corn exports were 36,544 thousand tons, accounting for nearly 20%; The third is Brazil, with exports of 27,492 thousand tons.

4. Corn consumption will be close to 1.2 billion tons

Global maize consumption has increased in 2017 18-2020 21. In 2020-21, global maize consumption reached 1138159 thousand tons, a slight increase from 2019-20. According to USDA's March 2021** data, global corn consumption will reach 1196620 thousand tons in 2021 22.

5. The corn stock will increase by 3%.

In 2017-18-2020-21, the global maize stock showed a downward trend. In 2020-21, the global maize stock was 291446 thousand tons, down from 2019-20. According to USDA's March 2021** data, global corn stocks will recover by more than 3% in 2021-22.

On the whole, in 2021-22, global corn production, consumption, exports, and stocks will increase. According to agricultural and rural information, affected by the epidemic and extreme weather.

Under the superimposed influence of factors such as international capital speculation, global grain prices will be significantly higher in 2021, and China's grain import costs will increase significantly. According to the Ministry of Agriculture and Rural Affairs.

According to the information of the Market Early Warning Expert Committee in March 2022, wheat is expected to be reduced for corn feed consumption substitution, while the pig herd is still at a high level, corn feed consumption is steadily increasing, and domestic corn is expected to run at a high level. On the international front, the Russia-Ukraine conflict is still ongoing and may affect Ukraine.

of corn production and exports, which in turn increases the uncertainty of global corn, which is expected to be at a high level in the world.

The above data refer to the Prospective Industry Research InstituteAnalysis report on market prospect and investment strategic planning of China's corn processing industry

Corn is an important food crop, and its market capacity is affected by several factors, including demand, supply, and so on. In recent years, with the improvement of people's living standards, the demand for corn and other grains has increased, and the market capacity has also expanded accordingly. At the same time, technological progress has also led to the continuous improvement of planting technology, and the gradual increase in yield, which has promoted the growth of market capacity.

However, sometimes the weather, natural disasters and other causes of yield reduction, driving corn ** higher. In general, there is still room for development in the market capacity of planting corn in the future, but it is also necessary to pay attention to the influence of corresponding factors to maintain market stability.

1. The impact of excessive planting density on corn yield.

When the planting density of maize increases, the foliar coefficient of maize will also increase, which will increase the photosynthetic area of maize and increase the yield of maize. However, when the planting density of maize is too large, although the overall number of grains per ear will increase, the grain weight per ear will decrease, which is not conducive to the growth of maize. When the corn planting density is controlled within a reasonable range, the corn yield can increase with the increase of planting density, but once the predetermined value is reached, the yield will decrease.

2. The effect of too small planting density on maize yield.

When the planting density of corn becomes smaller, although the overall yield of corn will be affected, the quality of individual growth and development can be improved. Specifically, when the corn planting density is small, the photosynthetic capacity of each corn plant will be enhanced, and the stalk growth capacity will also be improved, which will make it easier to transport nutrients. When the nutrients transported are increased, the individual yield of maize will increase, which will make up for the defect of small planting density to a certain extent, but have a greater impact on the overall yield, because the number of ears and grains per unit area will decrease.

3. The effect of suitable planting density on maize yield.

When the planting density of maize is controlled within a reasonable range, the environment in the growth and development of maize will be more suitable, and the leaf coefficient, photosynthetic coefficient and leaf area of the population can be suitable for the growth and development of maize. When the photosynthesis time is sufficient, the individual and population of maize can achieve good growth, and the yield of individual plants and the overall yield can be increased, and the yield increase goal can be achieved eventually.

4. Effect of planting density on maize quality.

The quality of corn can be analyzed from three aspects: protein content, fat content and starch content. The protein content of maize grains was directly affected by planting density, and there was an inverse proportional relationship between protein content and planting density in the middle of maize grain filling, but there was an obvious relationship between grain maturity and other stages. Planting density also had an effect on the fat content of maize grains, which was mainly reflected in the middle and late stages of grain filling, and the fat content of maize was directly proportional to the planting density.

When the corn matures and the late stage, the fat content of corn will show a linear relationship between high and then low, and both the fat content and nutrient content of corn will be affected. When the planting density is too large, the starch content of corn will be relatively low, and there will be a linear relationship between low and then high during the whole growth period.

The main reason for the increase in yield of dense planting is to increase the number of spikes per unit area and increase the yield by using the increase of population photosynthesis efficiency. The high-yield maize variety Denghai 3719 was used as the material, and the planting density (60,000 plants, low density; 10,000 plants, high density) Nitrogen application rate (250kgn hm, low nitrogen; 450kgN hm, high nitrogen) was used to compare the effects of dense planting and nitrogen application rate on the growth and yield of maize per plant and population. The results showed that the yield of high density was significantly increased by 11 at the low nitrogen level of 250 kg hm and 23 at the high nitrogen level of 450 kg hm.

If the planting density is particularly high, it will also lead to a larger foliar coefficient of corn, which can increase the area of photosynthesis and thus also increase the yield. If the planting density is particularly small, it will lead to a smaller yield, which will affect photosynthesis.

The impact is very large, affecting the yield, too little density and too high density will lead to problems, there is no way to grow normally, it is easy to cause the plant to twist.

The smaller the plant spacing, the more corn plants there are. However, this results in a decrease in the average amount of light received by each corn plant, as the leaves overlap with each other, with the top ones blocking out the sunlight and the lower ones receiving less. The yield will be reduced.

Corn can not be planted too dense, corn seedlings will grow very high and dense, if too dense, it will affect the corn to receive sunlight, affect the growth and corn fruit, and too dense, easy to grow insects, pests harm corn, will lead to reduced yield.

The number of ears per mu is the premise of obtaining yield. By reasonably increasing the planting density, constructing a reasonable group, and coordinating the relationship between the group and the individual, as well as the yield components, it is more conducive to obtaining high yield and stable yield. 80% of the ultra-high-yielding fields have between 4500 and 6500 spikes per mu.

A good row spacing can play a role in ventilation between corns, ensuring that the amount of oxygen and carbon dioxide between corns is sufficient. A good row spacing can make each corn plant receive sufficient sunlight, increase the intensity of photosynthesis, make the final corn kernel more full, and the harvest effect is better.

Hybrid flattening medium and late maize: it has the characteristics of tall plant type, wide leaves, large angle between leaves and main stem above the ear position, and the planting density per mu is 3000-3500 plants. Hybrid erector type early-maturing dense tolerant corn:

It has the characteristics of compact plant type, leaf upward rush, small angle between the leaf and the main rod in the ear position, and the planting density per mu is 4500-5000 plants.

The optimal density of the corn varieties we planted can be clearly seen, the density is too low, even if the fertilizer and water can still not produce under the conditions, the density is too large, the fertilizer and water often cannot keep up, change the normal status quo of corn growth, not only the yield can not go up, but there will be lodging empty trees and other risks. As the planting density increases, at the apex of the parabola, a maximum value is reached, this point is our optimal sowing density, as the sowing amount increases, the parabola begins to go down, which means that the yield begins to decrease, and the higher the sowing density, the lower the yield.

The row spacing is 60 cm, the plant spacing is 27 cm, the theoretical number of trees is 4120, and the actual number is 3700-3800 trees. When planting, look at the description of the seeds, the general variety of more than 4000 trees, it is recommended that 60 25 is better, and the weak seedlings should be removed appropriately. Personal opinions are for reference only, and farmers should do it according to their actual situation.

The planting density will vary depending on the watering conditions. If the watering conditions are good, it can be densely planted, otherwise it will be scarce!

It is well known that the density of cultivation affects the yield. Therefore, it is necessary to choose a reasonable planting density according to the characteristics of maize, yield level, soil fertility and fertilization level. Flattened mid-late maize hybrid.

It is advisable to leave 3000 and 3500 seedlings per mu, which is suitable for spring sowing, which can make full use of light and heat resources to increase effective accumulation and improve yield. Vertical-leaved early-maturing and dense-tolerant maize hybrids. The average angle between each leaf and the main stem is less than 45 degrees, and the seedling density per mu is 4500 5000 plants.

It is suitable for sowing after the wheat harvest. Intermediate. The density of seedlings per mu is between 3500 and 4500 plants, which is suitable for wheat ridge intercropping or rapeseed stubble sowing.

The density is about 30,000 plants per mu, which is normal and reasonable, and can increase the yield of corn.

Depending on the variety, the fertility of the land is different, and the planting density will be different, but generally the density per mu is between 3500 and 4500 plants.

Generally, about 3,000 plants are planted on one acre of land, and 4,000 plants may be planted if it is a hybrid type of corn, and it depends on your local conditions according to local conditions.

Almost 3,000 plants are planted on an acre of land, and the planting density of corn is still relatively high, and the light requirements of corn are relatively low, so it does not need too much light.

Planting a corn every 50 centimeters will increase the yield of corn and make the corn fruit very large.

The yield per mu of corn crops is generally about 400-600 kg, but this number is not fixed, because it is related to various factors such as corn varieties, climate and environment, management methods, etc., if properly maintained, the yield per mu of corn can be as high as 900 kg.

Yield per acre of maize.

The yield per mu of corn is generally about 400-600 kg, but this number is not fixed, because it is related to various factors such as corn varieties, climate and environment, management methods, etc., if the maintenance is done properly, the yield per mu of corn can be as high as 900 kg.

Corn planting prospects.

Nowadays, the prospect of planting corn is still not very impressive, and now the purchase of corn is about 1 yuan per catty, and the investment per mu in the early stage is about 500 yuan, so that the net profit can only reach 600 yuan.

As one of the world's three major staple foods, it is very difficult to make money at present, and if you want to make a profit, you must find a way to improve the yield and quality of corn.

How to grow corn to achieve high yields.

1. Land selection and land preparation

Corn planting needs to be selected in the flat terrain, deep soil, permeability, good water and fertilizer retention, only if the soil fertility is sufficient, corn can obtain a higher yield.

2. The application of sufficient base fertilizer is delayed

If you want to get a high yield of corn, it is also very important to apply sufficient base fertilizer, which can improve the physical properties of the soil, facilitate the activities of microlimb dead organisms, provide sufficient nutrients for plants in time, promote the development of root system, and create a good environment for strong seedlings.

For the reasonable planting density of corn, the following points need to be noted:

1. Different types of varieties have different density tolerances. The compact hybrids had strong density tolerance, stable yield with density increase, and were suitable for planting with high density, while flat hybrids had poor density tolerance and small density increase. If the density increases, the yield will decrease.

2. Flat mid-late maturing corn hybrids. These varieties have tall plants, wide leaves, and many leaves. The average angle between the leaves above the ear position and the main stem was greater than 35 degrees, and the average angle between the leaves above the ear position and the main stem was greater than 45 degrees.

It is suitable for 3000-3500 plants per mu, suitable for spring sowing, and can make full use of light and heat resources, increase effective accumulation, and improve yield.

3. Vertical leaf type early-maturing and density-tolerant corn hybrids. This variety is compact and has upward-growing leaves. The average angle between the leaves above the ear position and the main stem is less than 25 degrees, and the average angle between the leaves below the ear position and the main stem is less than 45 degrees.

The density of seedlings per mu is 4500-5000 plants. It is suitable for sowing after wheat harvest.

4. Intermediate. The angle between the leaf and the main stem of these varieties is between compact and flat. Most of them are medium-early maturing and density-tolerant varieties, with a seedling density of 3500-4500 plants per mu, which is suitable for wheat ridge cropping or rapeseed stubble sowing.

5. Choose a reasonable density according to the characteristics of the variety, yield level, soil fertility and fertilization level. In the medium-level field with a yield of 400 500 kg per mu, the suitable density of flat maize hybrids was about 3000 plants. There are about 4,000 compact hybrids on the acre. The suitable density range is:

flat-leaved maize hybrids are about 3500 plants per mu; There are about 3700-4000 compact medium and late maturing large-spike hybrids and 4500 compact erect leaf mid-spike hybrids per mu. The suitable density range for the yield level of more than 650 kg per mu is as follows: compact medium spike type, 5000-5500 plants per mu, compact large spike type, 4500-5000 plants per mu.

The above are some points that need to be paid attention to when the reasonable planting density of corn is planted, I hope it will be helpful to you.