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After cutting corn, the roots are generally developed, and the drought resistance effect is remarkable. The observation of uncut leaves and wilting in corn fields in arid areas or in dry season, and the effect of cutting down and leveling corn leaves fully showed the effect of resisting large-scale drought after cutting seedlings. After the corn seedlings were cut, the stems were slightly thinner, the corn nodes with cut leaves were significantly shortened, the ear height was reduced, the center of the corn was lowered, and the wind resistance effect was better.
Pests such as corn borer, armyworm, and corn aphid erode young leaves and cut down saplings at the stage of corn seedlings, effectively inhibiting most of the clients of corn pests and reducing the losses caused by corn diseases and pests. With the strengthening of photosynthesis in the whole leaves of maize with root development, maize stores more nutrients and delays yellowing of leaves, which proves that maize will not fall out in the later stage, so maize baldness is greatly reduced.
Due to the removal of the human factors in the seedling period, the seedlings are uniform, the height is consistent, the big seedlings on the land are only one piece, the small seedlings, but there are two leaves, the progress is relatively consistent after cutting the seedlings, the phenomenon of eating small seedlings is eliminated, and the moisture time of corn is consistent, which can achieve the effect of increasing yield. The purpose of cutting down seedlings, controlling the photosynthesis surface of the ground part, reducing the occurrence of exchange transfusion, controlling vegetative growth, and promoting reproductive growth. Corn seedling cutting refers to the corn grows to 5 6 leaves, the use of electromechanical drive slicing, the corn seedling cut between 1-2 pieces, improve the whole corn, promote nutrient counterflow, help the root system development, assault long stems and leaves, to achieve the purpose of corn yield.
After cutting off the seedlings, the reproduction of the roots is strengthened, and the reduction of the panicle position also plays a role in reducing wind resistance and lodging resistance. There is also a relative increase in production. Miaoling refers to the period at which the corn seedlings grow, that is, the time it takes to grow to a few leaves.
Through their own practice, communicating with experts during the growth process, and communicating with other provinces and cities and seedlings, it was found that the most suitable seedling age is 5 6 pieces, and more than 70% of the leaves are best cut down again. If the sapling is cut too low, the sapling will become too short, forming a weak seedling, which may reduce yield. If the cut is too high, more than 6 leaves will be detrimental to nutrient reflux, and the possibility of reduced yield will increase.
So we adjust the height between one leaf and two leaves, not only does it not have much effect on early photosynthesis, but it also does not waste water and nutrients.
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Although theoretically cutting seedlings can achieve increased yield, but scientific agriculture is still not advocated, which is not to say that scientific agriculture does not want the people to be able to achieve high yields, but cutting seedlings will also increase the chance of corn infection with viruses and bacteria, so that the plant is susceptible, and this measure also increases labor intensity.
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This is true, corn seedlings can increase yield, and there are no technical requirements, but you need to pay attention when cutting seedlings, only 1 3 can be cut.
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It is true, the first thing is to choose a professional instrument, we must grasp the right time, and at the same time, we should also pay attention to the fertility of the soil, and we must strengthen water and fertilizer management and field management.
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There are no technical requirements, and corn seedlings do increase yields. This is something that many farmers have already tried.
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It is necessary to pay attention to the sowing time, control the external environment, ensure the fertility of the soil, and use base fertilizer in time.
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The soil moisture of the first planting is better, the second is fertile, the third is more sunny, the fourth is long in the sun, and the fifth is the *** of corn seeds.
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Leaf removal, tip folding, pollination, emasculation, fertilization, and regular watering can increase corn yield.
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If you want to increase the yield of corn, you can start from the following aspects: strive for early sowing within the suitable sowing date of corn to provide a material basis for high corn yield. Mulching retains soil moisture and promotes the growth of corn roots. Artificial assisted pollination of maize was carried out to reduce grain deficiency and convex tip, and emasculation and male shearing were used to supply female ears with concentrated nutrients to reduce empty stalks.
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Summary. Corn cannot be cut off early, the yield will be reduced, and the pollination is not in place.
Can corn severing increase or decrease yield, and does corn severing pollinate in advance.
Corn cannot be cut off early, the yield will be reduced, and the pollination is not in place.
It's still a seed like this.
Gale. The odds are slim.
Is there insurance. Caused by strong winds, the corn had not yet come out at that time, and it was not out of age.
Insurance. Spring corn is uninsured, and the losses are huge, all by themselves.
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When planting corn, it should be watered twice, the first time is when the corn seedlings grow to the knee, and the second time is when the ears of corn grow, so that it can be better, and in the later stage, you should also pay attention to weeding, do not have too many weeds, because this will absorb nutrients.
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When selecting seeds, we must choose seeds with full grains, and at the same time, we should pay attention to the interval when breeding, and we should also pay attention to the density of planting, and also control the management of water and fertilizer. Do a good job in field management, and also spray some pesticides appropriately to control pests and diseases. Breeding can also be done by means of crossbreeding.
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Excellent corn germ should be selected before planting. Loosen the soil so that the soil produces abundant air. After planting, it is necessary to water regularly and repel insects regularly to prevent pests and diseases.
At the same time, it is necessary to eradicate some diseased seedlings and weeds that do not grow well, so as not to compete for nutrients from excellent corn.
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It is necessary to pay attention to the technology of mutagenesis, but also to the technology of hybridization, to pay attention to the survival rate of seedlings, to pay attention to quality, as well as the selection of seeds, and to understand the basic planting techniques.
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1. In order to prevent water evaporation and improve the survival rate of plants in the process of replanting. In order to prevent the leaves from evaporating too much water, some leaves were transplanted. During the transplanting process, the root system of corn seedlings is damaged and absorbs less water.
In addition, the weather is hot in summer, and the evaporation of corn leaves is too large. The water evaporation rate is faster than the water absorption rate of maize seedlings, which can easily lead to wilting of maize seedlings after transplanting.
2. When transplanting, cutting off the old leaves can reduce the excessive water consumption of corn plants, ensure the water of corn seedlings, and maintain the recovery of corn roots. When the root system of maize seedlings recovers, their water absorption function is restored, which improves the survival rate of maize seedlings. The corn seedlings have five or six leaves in them, and it is the best time to plant them, and the replanted corn seedlings are the same as the ones in his hand.
In order to reduce the absorption of water and nutrients by corn and ensure the survival rate of corn, two-thirds of the leaves are removed.
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It should be the way the machine is sown, which may increase the yield of corn. And you have to be careful to control the interval between the corn.
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If you want to increase the yield of corn, then you need to manage it properly, such as applying fertilizer regularly, putting the right amount of water, and letting it have enough light.
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First of all, the temperature should be controlled, the temperature should be controlled at about 18 degrees, and then the pesticides should be sprayed regularly to keep the light sufficient, and the pests should be removed in time.
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First of all, we should choose high-quality varieties, timely watering and fertilization, strengthen the management of water and fertilizer, ensure sufficient light, and then we should also spray pesticides regularly, remove insect pests in time, pay attention to control the temperature, and do a good job of drainage and ventilation. Lift the paragraph.
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We should choose scattered silver seeds for sowing, we must pay attention to the planting density when planting and selling, and we should also choose some seeds with better quality, and we should also water and fertilize in time, and we must kill pests and diseases in time.
China Eugenics Network.
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