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When the corn reaches the late stage, it refers to the grain setting stage, which can be watered according to the moisture, and if the field is dry, it needs to be watered.
Generally, after sowing corn, it is watered, and if the soil moisture content is high at the time of sowing, it can be left without watering.
In the event of drought during sowing, watering can promote the germination of corn seeds and prevent ridge breakage.
After corn sowing, before the three-leaf stage, it is necessary to have sufficient water to ensure growth, in the past, in some areas, because of special drought, the growth of corn seedlings has a great impact, resulting in weak seedlings, or dead seedlings.
After the corn seedlings enter the jointing stage, the plant begins to grow rapidly, and the water demand increases at this time, if the soil water content is low, it must be watered, and the watering at the jointing stage will have an impact on the corn plant, as well as the heading and flower bud differentiation of the corn.
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Whether it is corn and wheat, any kind of crop, there will be no specific time summary of the watering time, farmers must not stick to the knowledge in the books, if according to the perspective of scientific farming, each growth cycle of corn has a great demand for water, you can't all water it, don't read the book, don't read the dead book, the crops don't have to learn how others do, this is the road.
When the corn is watered, it is said according to the degree of drought of the cultivated land, the land lacks water, and the corn is dry and the leaves are drooping, so you water, on the contrary, the land is moist and the corn grows well, and you are blindly watering according to the growth cycle theory, isn't it a waste of time, money and water resources? Flexible farming, management according to local conditions, and intensive management of specific realities is the performance that a farming expert should have.
Do you still need to water corn in the later stages? Generally speaking, the end of corn filling period has set particles, close to maturity is not required to water, at this time even if the corn field is dry, in the continued watering for the increase in corn yield will not have a practical effect, on the contrary, corn growth in the later stage, its own weight is top-heavy, the plant bearing force is too heavy, if the flood irrigation, in the event of thunderstorms and windy weather will definitely encounter lodging, although the lodging at this time, for the yield of corn will not cause a great reduction in yield, However, it is a difficult problem to affect the quality of corn grains and the subsequent harvesting, so it is recommended not to water the corn in the later stage of harvest, as the gains outweigh the losses.
Take the summer corn planted in the north as an example, to the late growth period is not to consider the problem of watering, the first summer corn growth cycle happens to be in the rainy season in the north, in the middle and late stages of corn growth management encountered problems, most of them are drainage and lodging problems, the second watering work if it is indeed dry, should have been in the early stage of filling, ready to prepare for a rainy day, now it is too late to consider this problem.
In the case of not considering the weather and rain, the hooded water during the emergence period is indispensable, drought will lead to the corn sown after the wheat harvest, can not grow smoothly on the soil surface, the emergence of corn seedlings is incomplete, weak seedlings, large and small seedlings, after the hooded water is watered, the overall emergence rate of corn can be completely guaranteed, and the corn during the seedling period has little requirement for water, strong drought resistance, and there is no need to water for a long time after the blindfold water irrigation.
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If it doesn't rain for a long time, it needs to be watered. Any kind of crop consumes water, but he uses less water in the later period.
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Corn has already formed pellets at the end of the filling period and does not need to be watered when it is close to maturity. At this point, even if the corn land is dry, continued watering will not have a real impact on the increase in corn yield. On the contrary, in the later stage of corn growth, the self-weight is top-heavy, and the plant carrying capacity is excessive.
If flooded irrigation, thunderstorms and windy weather are sure to encounter lodging. Although lodging at this time will not cause a significant reduction in corn yield, the damage to corn grain quality and subsequent harvest is a problem. Therefore, it is recommended not to water the corn in the later stage of harvest, as the gains outweigh the losses.
In the case of summer corn grown in the north, for example, watering is not considered in the later stages of growth. The growing cycle of summer corn coincides with the rainy season in the north. Most of the problems encountered in the middle and late stage of maize growth management are drainage and lodging problems.
If the watering job is really dry, it should have been prepared at the beginning of the filling period a long time ago. It's too late to think about it. In the absence of rainy days, head coverings at the seedling stage are essential.
Drought will cause the corn sown after wheat harvest to fail to grow smoothly on the soil surface, resulting in incomplete corn seedling, weak seedlings, and seedling size. After watering with hooded water, the overall emergence rate of corn can be fully guaranteed. Moreover, corn at the seedling stage does not have high water requirements and strong drought resistance.
Watering is not required for a long time after head-covering irrigation.
During the corn horn opening, if the weather continues to be dry and rainless, the meteorological department will also ** the next half month, there is no significant rainfall, so watering is not late, watering at this time should not choose water irrigation, generally speaking, water can pass through the ground, because this time has just arrived in the northern rainy season, the rain will definitely rain, just morning and evening, so you must pay attention to watering, when choosing watering, you must pay great attention to the local weather forecast, to avoid wind and thunderstorms. Many farmers also have their own experience when it comes to watering, which varies from place to place. For example, the Northeast is basically dependent on the sky, too dry for watering, too flooded for no watering.
For example, many plots in Hebei are sandy, leaky, and fertilizer.
If it's too dry, it's definitely not good. Fortunately, every plot in Hebei has wells that can be watered at any time. If there is also a period of watering under normal circumstances, watering is beneficial to the growth of corn and increases the yield.
Families are advised not to water before jointing if the weather is not too dry. Because the root system at this time is not very developed, especially in some plots with water leakage and fertilizer, once watered, the fertilizer will leak, and the root system is not enough fertilizer, and there will definitely be a lack of nutrients.
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In this way, soil fertility can be ensured and the yield of corn can be improved, because in the process of planting, the demand for water is relatively large, and if it is not watered, it may die of drought.
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I don't think of course you need to, you don't need to do anything at this time, you just need to wait for maturity.
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In this case, there is no need for large-scale watering, you can simply trade watering and replenish the required water.
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Corn is a crop with greater water demand, and the demand for water at different growth stages is different, such as less seedling stage, more jointing to heading stage, otherwise it will affect heading, pollination, and reduce yield. I don't know what stage you mean by late corn. Then I'll just briefly say it according to my understanding.
First, grouting to wax maturity stage.
After the corn enters the filling to wax maturity stage, this is an important stage to determine the yield of corn grains, at this time, although the sensitivity of corn to water is reduced, but still need sufficient water to ensure grain filling, otherwise severe drought, corn grains are deflated and not full, and the grain weight is reduced.
The experience of water management of high-yield corn is that corn should be better watered twice during this period, one is watering from flowering to grain formation, which is the key water to promote grain count. The second is milk cooked water, which is the key water to increase grain weight. In dry years, you can water the flower water, milk ripe water, and in the wet year, you can water one of them or not water according to the soil moisture.
Like this year, there was plenty of rain here, and some of the fields of corn were waterlogged. It doesn't matter what flowering milk is ripe water, now it's best not to drop a drop, and dry and dry mechanical work, otherwise it will be ruined and will have to be done manually. If it rains again, the sowing of wheat in some plots will have to be delayed, and all the waterlogging springs will occur.
Second, the wax ripening period to the full maturity period.
After the corn plant enters the wax maturity stage, the kernels have matured and entered the drying and dehydration stage, and only a small amount of water is needed to maintain the growth of the plant. Most of today's corn varieties are live stalks mature, and the water in the plant at this moment is enough to ensure the normal maturity of corn grains, and there is no need to water anymore, so as not to be greedy for green and late maturity, which will affect the sowing of wheat.
In short, after the corn reaches the wax stage, no matter how dry the ground is, you don't need to water it. The critical period for corn water demand is before grain filling, which is the critical period for corn plants to need water. Good steel should be used on the cutting edge.
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Yes, before planting corn watering is for fear of too much fertilizer, suffocating corn seeds, but now are the integration of water and fertilizer, fertilizer and water are directly flushed, both can be watered and flushed fertilizer, the current integration of water and fertilizer is water-soluble fertilizer, and imported water-soluble fertilizer nutrition should be complete, absorption and utilization rate should be high.
The base fertilizer is mainly farmhouse fertilizer, which is mainly made of livestock and poultry manure through fermentation and decay, which is rich in microorganisms, has the characteristics of long fertilizer efficiency and sufficient nutrients, and has an obvious effect on the improvement of soil physical and chemical properties. In the application according to the soil fertility situation, generally apply about 2 tons of organic fertilizer per mu, and with 10 kg of ammonium fertilizer, 20 kg of phosphate fertilizer, and 6 kg of potassium fertilizer.
If there is a shortage of zinc fertilizer in the plot, it should also be appropriately increased with ribery Yanwo zinc fertilizer. The basal fertilizer is generally applied in combination with the ground before sowing, which can be applied in holes or strips, and after application, the fertilizer is covered with about 4 cm thick fine soil to avoid direct contact between the seeds and the fertilizer to burn.
Seedling fertilizer is generally applied when the plant grows to 3-4 leaves after emergence. With the rapid growth of plants, the amount of fertilizer required is increasing, and the seedling fertilizer should follow the principle of early application and light application.
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Corn needs to be watered just after planting, and it needs to be watered immediately and thoroughly. Because before sowing corn are applied enough base fertilizer, if not watering may appear stuffy situation, and sowing corn is also in summer, the temperature is relatively high, if not watering will cause the seed can not be unearthed normally, watering after sowing can ensure the emergence rate of corn seeds, seedlings can also germinate better.
Questions. Can the corn seeds be watered if they have sprouted but there is no soil?
Watering corn when it is not emerging should be determined in combination with corn growth, weather, soil moisture content, etc. In the northern spring maize area and the Huanghuaihai summer maize area, due to the arid climate, it is necessary to water after sowing, with a watering amount of 40-50 cubic meters per mu. In the summer sowing or interplanting corn area, wheat yellow water needs to be poured after sowing, about 50-60 cubic meters per mu.
Corn seedlings emerge for about 11 days, and about 50kg of seedling fertilizer is applied per mu to ensure that the growth rate of corn seedlings is consistent.
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If the corn is about to ripen, it generally does not need a lot of watering.
This is because when corn is about to ripen, it needs the right temperature and proper light, and too much water is not only bad for ripening, but also easy to delay the ripening process of corn.
Corn is an annual herbaceous plant in the family Poaceae. It is also known as bud valley, bud rice stick, maize, pearl rice, etc. Native to Central and South America, it is an important food crop in the world and is widely distributed in the United States, China, Brazil, and other countries.
Compared with traditional rice, wheat and other food crops, corn has strong drought tolerance, cold tolerance, barrenness tolerance and excellent environmental adaptability. Corn has a high nutritional value and is an excellent food crop. As a high-yield grain crop in China, corn is an important feed for animal husbandry, aquaculture, aquaculture, etc., and is also one of the indispensable raw materials for food, medical and health, light industry, chemical industry, etc.
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Summary. If it's not particularly dry, you don't need to water. At the end of the corn filling growth period, in the late stage of corn growth, about 20 days before harvest, it is recommended that there is no need for watering, because watering at this time does not play much substantial role in increasing corn yield.
If it is not particularly dry, it is advisable not to water.
When the corn is about to be harvested, do you still need to water it?
Do you need to water when the corn is planted in Xinjiang when it is dry at the maturity stage?
If it's not particularly dry, you don't need to water. At the end of the corn filling growth period, in the late stage of corn growth, about 20 days before harvest, it is recommended that there is no need for watering, because watering at this time does not play much substantial role in increasing corn yield. If it is not particularly dry, it is recommended that the slag of the world is best searched quietly and not poured with forest water.
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Hello, you can also do without watering, corn watering is in these cases.
1. Sowing and seedling emergence stage. Although the water requirement is small, it is very critical and important. Sufficient and suitable moisture is the main factor to ensure that the whole seedling of corn emerges, and sufficient bottom moisture is required before sowing, if the moisture is insufficient, it should be watered and replenished in time after sowing.
2. Seedling jointing. During this period, maize has a lower water requirement and is more tolerant of drought. Proper drought in the spring maize area is also conducive to squatting.
3. Jointing large bell mouth stage. Growth accelerates and water requirements increase. The water requirement of maize should be properly guaranteed.
4. The peak period of grouting in the big bell mouth period. About 1 month is the period with the most water demand, especially before and after spinning is the moisture sensitive period. Severe drought will cause neck drought, difficult to extract tasseling, poor pollination, resulting in empty stalks, resulting in serious yield reduction, or even no production.
During this period, if there is a drought, it must be irrigated in time.
5. Mature in the late stage of grouting. Water demand decreases, but drought affects grain weight.
Corn in the whole growth cycle of nitrogen fertilizer demand is larger, the demand for potassium and phosphorus fertilizer is second, but also need the appropriate amount of mineral element supply, fertilization will be controlled in the proportion of nitrogen, phosphorus and potassium fertilizer application at about 1, corn yield is higher, in corn sowing attention to apply seed fertilizer, so that the seed seedlings and provide the nutrients required by the seedlings, at the same time during the corn seedlings should be applied fast-acting fertilizer as seed fertilizer, it is recommended to use the water-soluble fertilizer of the sea, which is conducive to increasing the yield and income of corn, high yield.
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