Can corn be watered just after it emerges? Will it choke on the seedlings?

Can corn be watered just after it emerges? Scientific agriculture believes that if there is a drought, you need to water, and you don't need to rush to water when it dries. The water demand of corn is much higher than that of soil, and the root system of corn at the seedling stage is poor, and sufficient water is needed to ensure the growth and development of the seedling stage.

The quality of soil properties directly affects the ability of soil to store water and fertilizer. Sandy soils, for example, are prone to drought. Corn in this field is also the most vulnerable to damage once it lacks water at the seedling stage.

Therefore, watering at the seedling stage should be comprehensively considered according to the soil and soil moisture at the seedling stage. Generally speaking, it is not suitable to water the field after corn sowing, but it should also be considered according to the soil moisture in the field.

Good soil moisture is the premise of achieving full seedlings, full seedlings and strong seedlings, which should be taken into account before sowing, but if the soil moisture is not good, it will inevitably lead to a lack of seedlings or inability to complete the emergence of corn seedlings in the field. Due to the relative drought in North China, the lack of corn seedlings for a long time, and the drought in Northeast China this year has led to the emergence of this situation, so many netizens ask whether they can be watered when the seedlings are just emerged.

But there are also many farmers who miss this time, resulting in uneven seedling period, should they be hydrated at this time? In this scientific recommendation, the water holding capacity of the soil in the field can be measured. If it is 60-65%, there is no need to rush to water, because the corn plants at the seedling stage are relatively weak, drought resistant, and afraid of waterlogging.

If forced watering, it can harm the seedlings. However, if the water content is too low, it must be watered!

It's impossible. Corn on clay soil is not suitable. Watering after sowing can not guarantee 100% seedling emergence rate, and it is necessary to water the root running water every three to five days when the corn is drilled to ensure the stability of the corn root system and stable growth.

However, it is important to note that when watering in the middle of the day, remember to flood the water. So as not to sink into the water, the temperature is too high to burn the seedlings. If possible, drip irrigation and leaky tube can be taken.

It saves water and time, and is a safer way to water corn that has just emerged.

It can be watered, preferably by sprinkler irrigation, on the one hand, to save water, on the other hand, it can improve the moisture of corn seeds, which is good for the growth of corn; No, it will make corn grow better.

You can't water it because it chokes on the seedlings and is not good for the healthy growth of the corn, and if the situation is severe, it can reduce the yield of the corn.

If there is a great shortage of water, it must be watered, if there is no shortage of water, there is no need to do this, this is mainly determined according to the actual land situation, and there will indeed be a situation of choking seedlings.

OK.

1. Watering after sowing.

Generally, it is watered after sowing corn, and if the soil moisture content is relatively high at the time of sowing, it can also be left without watering. When sowing, watering can promote the germination of corn seedlings, increase the germination rate, and prevent ridge formation.

2. Watering during jointing.

After the corn seedlings enter the jointing stage, the plants begin to grow rapidly, and the water requirement increases at this time, and watering at the jointing stage is particularly important, because it will not only affect the growth of corn plants, but also affect the heading and flower bud differentiation of corn. At this stage, watering* soil moisture can be kept at about 60%, if the water is too high, the root system is shallow, and the corn is easy to fall and reduce the yield in the later stage.

3. Watering during pumping.

Basically, in July and August, which is also the hottest time of the year, corn rhizomes and leaves grow rapidly, which is also the stage of transformation of the plant's energy accumulation for reproductive growth, so not only the soil moisture should be maintained, but also the fertility of the field should be sufficient. At this time, the water content in the field can be maintained at more than 70%.

4. Watering in the grouting stage.

The growth of corn plants is mainly focused on the development of ears. Sufficient moisture allows for better corn filling, which increases yields. Therefore, after the corn enters the grain filling stage, if the soil moisture is insufficient, it should be watered as soon as possible.

Watering attention: 1. Do not water at noon.

The sun is just noon, the temperature is particularly high, at this time, if the corn is watered, the contrast between cold and heat is large, resulting in the water absorption capacity of the corn root system will be reduced, in addition, after watering, the water evaporates too quickly, on the one hand, the corn does not absorb enough water, on the other hand, the soil is easy to form knots, affecting the normal growth of corn.

2. It is best to use river water for sprinkler irrigation.

According to the practical experience of the people, river water is the best water source, the biggest benefit of drip irrigation corn is water-saving and uniform, water can be released at any time, the cost is not high, some can be used every year, some are one-time, the investment is not large, and according to the farmers who have used it, this is the real cost-effectiveness, especially the benefits of dryland are better.

Water is to provide the growth of corn seedlings, lack of water is easy to cause seedlings to dehydrate and dry up and die, when the soil of the planted corn seedlings is drier, it is necessary to water in time to supplement the water in the soil, and the corn seedlings can grow normally.

Hello. Corn seedlings can be watered.

The management of maize seedlings is as follows:

1. Drought prevention, anti-compaction, and seedling unearthing.

In case of drought after corn sowing, when the soil moisture content is below 60 in the maximum water holding capacity of the field, dry seeds, dry buds and dry mold often occur, resulting in serious lack of seedlings, so it should be watered in time to loosen the soil and protect moisture. In case of rainfall, resulting in soil compaction, water should be removed in time, or hoeing loosen the soil layer, disperse moisture and breathe to help seedlings unearthed.

2. Seedling inspection, seedling replenishment and interspersal seedling.

Whole seedlings are the basis for a good yield of maize. During the emergence period, when it is found that there is a lack of seedlings and broken ridges, it is necessary to promote germination and replanting or replanting with soil in time. Seedlings are seedlings at the 3-leaf stage and seedlings at the 4-5 leaf stage.

Keep it dense and thin, and remove miscellaneous seedlings and diseased seedlings. The seedlings are right, and more seedlings can be left on the side and the ground to make up for the shortage. In the plot with heavier underground pests, in addition to timely insect control, the number of seedlings can be increased and the seedling time can be appropriately postponed.

3. Cultivating and weeding.

The seedling stage is generally cultivated 2-3 times. Before seedling setting, 1 shallow tillage (tillage depth 3-4 cm); Before jointing, combine soil cultivation and carry out 1-2 times of tillage. The depth of small tillage should be mastered by the principle that the seedlings should be shallow and the rows should be deep, and the depth of tillage is generally 6-8 cm.

Cultivation at the seedling stage is more important for interplanting maize. After the harvest of the previous crop, it is necessary to carry out cultivation and stubble removal in time, top dressing and watering to ensure full growth and strong seedlings.

4. Top dressing of seedling fertilizer.

Seedling fertilizer combined with inter-seedling application, according to the seedling conditions to apply eccentric fertilizer, in order to promote balance, generally about 1500 kg of decomposed manure per mu, or 4-5 kg of urea.

You can also use the water-soluble fertilizer of the balance of the leaves of the Vosch Plant, which is conducive to plant absorption and has a high utilization rate.

5. Control underground pests and rodents.

Corn seedlings can be watered, if it is too dry and not watered, the seedlings will dry up. But it is necessary to water when the outside temperature is low, such as four or five o'clock in the morning or after the sun goes down in the evening, otherwise the seedlings will die of heat.

Corn seedlings are not suitable for heavy watering.

It is best to use a shower for watering, and the lower the concentration of fertilizer in the water, the better, and it is appropriate to keep it at about 1:20!

Growth period: Corn is affected by high temperature after sowing, which is not conducive to corn germination and emergence, and also inhibits the growth rate of corn, so that the development period of corn is significantly delayed and shortened.

Watering in time: In case of hot and dry weather, it should be watered in time. In the middle of growth, the high temperature during the growth period will curl the corn leaves, which is not conducive to the photosynthesis of the corn leaves, and will hinder the growth of the corn.

Late growth stage: The hot and dry weather at the bell stage, tasseling stage and ear stage of corn will slow the development of female ears or delay the extraction of stamens, resulting in poor pollination and bald or incomplete corn grains, which will seriously affect the yield of corn.

Countermeasures for hot weather after corn sowing.

Variety selection: Choose corn varieties that meet local planting conditions and drought resistance.

Timely watering: In case of high temperature and dry weather, it is necessary to water in time, which can effectively alleviate the harm of corn after high temperature.

Artificial pollination: continuous high temperature weather has a great impact on corn pollination, which artificial pollination can be used to improve corn yield.

If there are no watering conditions after the corn is planted, the corn roots can be sprayed with manual spray. At this time, potassium dihydrogen phosphate can be added, which can not only alleviate the high temperature phenomenon of corn, but also provide more nutrients for corn. Therefore, field management is very important, and the high yield of crops is inseparable from our efforts.

Summary. Dear, I'm honored to have your question The information that the teacher found for you here is: After the corn is sown, the ground is flooded for two days before there is no water to emerge seedlings, and the corn is flooded in the field for two days after sowing and can not emerge without water;As long as the corn seeds are not soaked for more than 12 hours, they can emerge.

If the corn seed is just sown, it can still come out if it is flooded, if the corn is germinated, the water will not go down for a while and a half, so the corn seed can not come out The corn seedling stage can be soaked in the water for two to three days, if the temperature is high, it will not work, and it should be drained in time. Due to continuous rainfall, the soil is compacted and the crop roots are in a state of suffocation due to lack of oxygen.

Dear, I'm honored to have your question to provoke Sun Yo The information that the teacher found for you here is: After the corn is sown, the ground is flooded for two days before there is no water, can the seedlings come out of the shed, and the corn is flooded in the field for two days after the corn is sown, and the seedlings can not emerge without water;As long as the corn chain leads the seeds, they can emerge if they are not soaked for more than 12 hours. If the corn seed is just sown, it can still come out if it is flooded, if the corn is germinated, the water will not go down for a while and a half, so the corn seed can not come out The corn seedling stage can be soaked in the water for two to three days, if the temperature is high, it will not work, and it should be drained in time.

Due to continuous rainfall, the soil is compacted and the crop roots are in a state of suffocation due to lack of oxygen.

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Water the corn 3-5 days after emergence.

Corn can be watered once in 3-5 days after emergence, which can make the early seedlings of corn grow more full and firm, and can improve the yield of corn. When watering corn, it is also necessary to observe the soil moisture, the soil is relatively dry, it is best to water within 3-5 days, if the soil moisture is better, you can postpone the watering time. If there is a precipitation forecast for corn within three days of emergence, watering is not necessary.

Watering corn after emergence is the key to determine whether it can be high yield, which can make corn seedlings grow more full and firm, and under the condition of ensuring corn density, improve the uniformity of corn planting, which can improve the yield of corn. After the emergence of corn, it needs to be watered according to the soil moisture, if the soil moisture is better, you can postpone the watering time, if the soil moisture is poor, you need to water once within 3-5 days to keep the soil moist.

<> corn is planted and can be watered. Be sure to water thoroughly when watering to keep the soil moist, because there is enough base fertilizer in the soil at this time, if Mori Kei does not water immediately, there will be a phenomenon of stuffy seeds. The watering time is generally at night, and it should be noted that you should not water when the temperature is high at noon, otherwise the corn will not be able to absorb enough water.

At the seedling stage of corn, it is important to pay attention to water control, if you water too much, it will make the soil too wet.

1. Can corn be watered just after planting?

1. Corn can be watered just after planting, be sure to water once to keep the soil moist. At this time, there is enough basal fertilizer in the soil, and if it is not watered in time, it will be bored.

2. The watering time can be selected at night, and must not be watered at noon when the temperature is high, the temperature at this time is too high, and the speed of water evaporation after watering will be very fast, which will cause the corn to have no way to absorb enough water, which will have a certain impact on its own growth.

3. In the corn seedling stage, it is necessary to carry out proper water control, if the water is excessive, it will lead to the soil is too moist, and it is easy to rot roots.

2. Will it be affected by heavy rain after corn sowing?

1. If there is heavy rain and the soil is in a moist state after planting corn, it will have a certain impact on the corn strategy, and the heavy rain is likely to wash the seeds out of the soil, resulting in seed waste. Moreover, excessive rainfall will also lead to excessive water accumulation in the field, poor soil permeability, and the seeds will rot in the soil, resulting in the lack of seedlings and broken ridges.

2. After heavy rain, if there is rotten seeds in the field, it must be replanted at this time, but the replanting must be based on the lack of seedlings in the field. Generally, the plot with a seedling shortage rate of less than 10% can usually not be replanted, and if it is in 10-30% of the plot, it must be replanted to minimize the loss.

3. After sowing, if there is a light rain and the soil is in a dry state, it will basically not affect the corn, and the appropriate amount of branch culture water can also promote better germination of seeds.