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First of all, the lodging resistance of corn is enhanced after cutting. As the saying goes, "trees have wind", and so does corn. Due to its special branches, tall and thin branches, long and thin leaves, it is especially favored by the wind.
In order to increase the yield per mu of maize, the primary task is to improve the lodging resistance of maize. If the corn falls, there is basically no harvest, there is no sunlight, and photosynthesis is also difficult. Even if it does not die, corn is short, and the kernels are sparse and not full.
In the past, when farmers planted corn, they didn't cut off their heads. They basically feed on the sky. When they fell, he went and lifted them up.
Their roots nestled in more soil. But they're basically all eastward, helping them to go up, west, because the wind is different every time. When I was a child, during the summer vacation, I used to follow my dad to help the fallen corn.
It's really a repetition. In the end, when I help him, he breaks it. I had to chop it up and feed it to the pigs.
My father was sad to see such a result. After the corn is cut off, the branches become shorter, the leaves become smaller, and the wind resistance becomes smaller, thereby reducing the lodging rate, improving the survival rate, and naturally increasing the yield per mu.
Second, after the corn is cut off, water and nutrients are effectively utilized. During the growth of corn, two-thirds of the nutrients** go to its own branches, and only a small amount of nutrients** go to the corn fruit. Therefore, in order to increase nutrients, make rational use of water, and make the fruit grow large and full, the best way is to remove the excess part of the branch.
In this way, the fruit gets a large part of the nutrients. The fruit is rich in nutrients and grows well, which improves the recovery rate and increases the yield per mu.
Thirdly, photosynthesis is enhanced after corn harvesting. In the vigorous growth period of corn, the basic fields of corn are impermeable and dense, and it is difficult for people to walk in the field, so it is difficult for corn with too much coverage to shine and play a role, which will affect the growth and maturity of corn. After the corn head is removed, some shading leaves are also removed, so that the corn field will be well ventilated, well-lit, and improved with the increase of photosynthesis capacity, the corn will grow well naturally, and the yield per mu will naturally increase.
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After the corn is flowered and pollinated, the corn begins to grow and plump, and the corn leaves begin to turn yellow and have no effect. However, it is not possible to cut the head when the flowers are pollinated, so that the corn will not be harvested without pollination.
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There is no effect after pollination, but not before pollination.
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Yes, it is possible to increase production.
Is it true that if corn is "headed", its yield is expected to increase by 20 percent?
Corn is a monoecious food crop.
And there are more male ears, and the presence of pollen will cause a large loss of nutrients, so that the nutrients of the female ears are affected, and the corn itself likes light and heat, in dog days.
The internal growth rate is accelerated, mainly due to the abundant sunlight and high temperature during this period.
As for "heading", it is to cut off the male ears so that the corn will grow more vigorously, and the corn on the cob.
Larger, the corresponding yield of the base will also increase. Of course, the "de-heading" process is divided into two steps, one is to "go to the male" and the other is to "hit the top."
Topping is to cut 3-4 leaves from the cob upwards, so that the purpose of reducing nutrient consumption can be effectively absorbed into the corn cob. The reason why the top leaf is left is mainly to meet the needs of photosynthesis.
Guarantee the transformation of nutrients.
At the same time, topping can also improve the permeability of corn plants, reduce the risk of insect eggs hiding in the leaves, and ensure the rational use of nutrients, so as to increase yield.
So can this method really increase production by 20%? The study found that this method is still feasible, but you need to pay attention to the time, not too early or too late.
Usually when the male spike is 6 cm exposed, and there is no scattered flowering; The topping time is when the pollination of the flowers is over and the color of the leaves on it changes to pale green. If it is too early or too late, the corn yield may be reduced, and it is usually done between 10 and 17 p.m. on a sunny day, when the temperature is high and the wound heals easily.
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It can be searched to increase the yield, the removal of the male flowers of corn can change the direction of vegetative growth, promote the formation and maturity of corn kernels, according to the data show that removing the corn head can increase the yield of about 10% per mu and the amount of leakage.
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Corn heading can really be effective in increasing yields. This point has been tested by multi-type infiltration times to show that generally two cutting heads can increase the yield of corn per mu by 10%-15%, and the corn maturity time is about a week earlier than that of no cutting heads.
This requires strict timing and sufficient knowledge and experience to be able to do, if the corn is blindly cut off, not only can not achieve the purpose of increasing the yield, it may also affect the growth and development of corn, and eventually reduce the yield, so this point must be paid more attention.
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Corn cutting is really a way to increase the yield, because after the corn is sliding, more plum oak nutrients will be gathered on the corn earing germination, so that the corn has a higher yield and better quality.
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It can increase the yield, and the corn head cutting refers to cutting off the male ears, which will grow faster and the corn cob will be larger.
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It can increase yields, and this method of cultivation is good for corn, which is a very tasty food.
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When cutting the head for corn, the corn seedling can be cut off from the first leaf from the root, the suitable time for cutting the head is when the plant grows to 5-6 leaves, the length of the corn root system after cutting the head is 10 cm longer than the root system of the uncut corn, the number of roots is about 15% more, the root system is more developed, and the corn ear is thick and full of the first beat, and the bald tip is less.
When the corn head is cut for the plant to 5-6 leaves, the corn seedling can be cut off from the root above the first leaf, after the corn head is cut, the height of the whole plant is 20-30 cm shorter than the height of the uncut plant, which can realize the lodging resistance of corn.
The length of the corn root system after cutting the head is 10 cm longer than that of the uncut corn root, the number of roots is about 15% more, the root system is more developed, and the corn ears are thick and full, and the bald ones have fewer tips, which can achieve a yield increase of 20%-30% and reduce the risk of insect infection at the same time.
The key measures for corn collapse prevention are to increase the application of potassium fertilizer and water control at the seedling stage, open a ditch on the side of the seedling at the front of the corn jointing, apply 15-20 cm deep with 30% of the total amount of phosphorus, potassium, sulfur, zinc fertilizer and nitrogen fertilizer, and reapply ear fertilizer at the corn big bell stage, bury the soil and water in time after fertilization, and keep the relative moisture content of the soil at more than 80%.
When the corn is in the seedling stage, it is necessary to strengthen the prevention and control of aphids, generally use 90% trichlorfon wettable powder 2000 times liquid for spraying, and at the same time to prevent corn coarse shrinkage disease, it is recommended to spray acelofen and other agents many times to kill the gray planthopper, so as to cut off the transmission route of coarse shrinkage disease.
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Summary. It has no effect on corn.
It has no effect on corn.
As long as the corn can be cut twice, it can increase the yield of corn by 15%-18%. Once the yield of corn is increased and the liquid is carried out, then, even if the price of grain is lower, it will not affect when to cut the head.
It is better to cut the head of the jade wide and clear first rice during the wax maturity period. Corn cutting refers to the removal of all except the upper straw of the corn ear. This treatment can improve the ventilation and light transmittance of the field, make full use of the advantages of the edge row, improve the color and 1000-grain weight of corn seeds, and also reduce the water integrity of seeds.
When is the wax ripening period?
When the corn filaments are light brown, the shape of the female ear reaches a fixed size; This is followed by 15 to 20 days before the wax ripening period.
The corn kernels are not yet ripe, and does it have any effect if the pulp is cut off the head?
Not much impact.
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The specific leaf cutting techniques are as follows:
2. Leaf cutting method: cut off all the corn seedlings above the first leaf from the root.
Third, the advantages of cutting leaves:
1. Anti-lodging.
After the corn seedlings are cut, the height of the whole corn plant is 20-30 cm shorter than the height of the uncut corn plant on average, and the ear position of the corn is also 20-30 cm shorter than the ear position of the uncut corn plant.
2. Drought resistance. In drought years, the root length of the cut maize plant was 10 cm longer than that of the uncut maize plant, and the number of roots of the mowed maize plant was about 15% more than that of the unmowed maize plant. The root system of cut maize is developed, the consumption of nutrients and water is less, and the nutrients converted into reproductive growth are more for vegetative growth.
3. Increase production. Compared with the yield of corn without seedlings, the yield of seedling corn can be increased by 20%-30%, which is manifested in the specific performance of (the corn ears of seedling corn are relatively full, the bald tips are less, and the seedling corn is suitable for any soil fertility, variety and different sowing dates. Fourth, reduce insect infestations.
When the corn seedlings are young, the moths of the corn insect pest will lay eggs on the leaves, and when the leaves of the corn seedlings are cut off, the eggs will immediately lose the living environment and die with the drying of the leaves. (**Agricultural Technology).
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If you cut too much, it will have an impact on the yield of corn on the cob.
Corn tillering belongs to the category of reproductive growth, so the elements of reproductive growth are stored in the tillering, which are inexhaustible, and they will grow again, and many plots are broken 3 times and 4 times are inexhaustible.
Why does corn appear "tillering": corn belongs to the annual herbaceous plant of the Poaceae family, with the characteristics of tillering, after long-term cultivation and domestication of human beings and artificial selection of varieties without tillering or less tillering, ordinary cultivated corn is basically no tillering or less tillering under general conditions.
There is an axillary bud in the leaf axils of each node of maize, and the axillary buds can develop except for the axillary buds at the top of the plant 5-8 nodes. The uppermost axillary bud can develop into a spike, while the axillary bud near the base of the surface forms a tiller. Due to the strong apical dominance of maize plants, the process of forming tillers in the base axillary buds is generally inhibited, so the production of tillers in maize plants is relatively rare.
Does tillering affect yield: If the tillering development is smaller than that of the main stem, as the growth and development progresses, the tillering will gradually compete with the main stem, which has little impact on the yield. It is feared that the tillers will compete with the main stem for nutrients.
The reality is that 92-98% of the tillers will gradually wither and die after the corn is tasseled, and only 2-8% of the tillers can grow and bear sticks!
To sum up: corn tillers do not need to be removed, and if they are removed, it may affect the yield.
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It is okay to cut it after fertilization, but cutting it before fertilization will cause the inability to fertilize and affect the yield of corn kernels.
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Corn is one of the most important food crops in the world, and promoting high yields is one of the most important tasks in corn production. In recent years, some farmers have increased their corn yields by adopting new farming techniques and cutting off their handles. So, can cutting off the corn handles really improve corn yields?
First of all, cutting off the corn handle is a common corn production technique. This method inhibits the growth of corn and allows it to distribute energy and nutrients more efficiently. At the same time, cutting off the head can also improve the drought tolerance and wind resistance of the corn, so that the corn can produce more grain even in the harsh environment.
However, cutting off the corn handles is not suitable for all regions and all varieties of corn. In some areas, maize may lose some of its growth due to the cutting off of the handlebars, resulting in lower yields. And for some varieties of corn, cutting off the head may damage the root system of the corn, resulting in some irreversible damage to the growth of the corn.
Therefore, cutting off the corn handle is not a method that can be applied to all corn production, and its effect is limited by geography and variety. When choosing the technique of cutting off the handle, farmers need to consider the local natural environment and the corn varieties they plant, and make reasonable selections and adjustments to achieve the maximum yield benefit.
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