When rice is planted, there is always water in the paddy field, what is the effect on the growth of

Rice is a water-loving crop, there is also this kind of field in our hometown, it is deep in the mud, there is water for a long time, although there is no big impact on the growth of rice, but it still has a certain impact on harvesting. In the same area, in different regions, one piece of sandy soil is good, and the other is a rotten mud field with a depression, and the yield of sandy soil field is definitely 200-300 catties of rice higher than that of rotten mud field.

After the rice seeds are sown, in order to make the seed buds quickly take root and erect the buds, it is necessary to keep the compartment moist and moist, so that the ditch water is full on sunny days and cloudy days.

Semi-ditch water. On sunny days, the direct sun is strong, and the horse water should be filled to prevent the compartment from drying out. The whole transplanting process of rice can easily lead to root loss, resulting in weak water absorption ability of seedlings, and the water layer should be deepened in time after transplanting to reduce the transpiration of seedlings.

At this time, the water layer should be 1 3 with a seedling height. If the soil is not drained and the field is sunned, the root system of rice still continues to absorb the nitrogen free in the soil in the field, resulting in the nitrogen fertilizer effect lasting too long, which will cause abnormal vegetative growth The rice field has been blistered, the temperature at night is low, which is not conducive to the growth of rice, there is no water, the soil is gradually dry, the heat of the day is maintained for a long time, and the dry and hard soil makes the rice roots tough and strong, less pests and diseases, resistant to pests and diseases, and resistant to lodging.

There is water all year round, and the rice that cannot be dried in the field cannot effectively control the tillering.

And the growth of seedlings, the growth period of rice is longer than that of rice in the sun, and the rice is green and astringent.

It is difficult to show ripe goldenness. Prone to rice planthoppers.

Pests and diseases such as sheath blight and lodging have led to reduced yields and even the end of the harvest in rice fields with water all year round, and there are many aquatic weeds. Every time the rice is planted and fertilized, the aquatic plants absorb the fertilizer. Then the wild growth takes up the space of the rice field and absorbs the soil fertility of the rice field, which can cause the phenomenon of chemical fertilizer waste.

The reason why the water layer in the field surface for a long time has a high rate of hollowing is caused by too much ineffective tillering in late growth. There is a relationship in botany called the "source-sink relationship", and the perennial availability of water in paddy fields not only has no effect on the growth of rice, but is a very favorable growing condition. Just pay attention to the depth of the irrigation water.

Rice is flooded for a long time, the root system is in a state of hypoxia, and the root system is concentrated in the soil surface layer and does not take root, which affects the normal tillering of seedlings. Poor water drainage and irrigation in the paddy field will lead to the accumulation of toxic substances in the soil, the lack of nutrients such as phosphorus and potassium, the poor development of rice roots, and the poor ability to absorb nutrients, resulting in slow tillering and less tillering.

In the process of rice planting, if the water is too sufficient, the roots of the rice will be soaked, and at night it will also prevent the aerobic respiration of the rice, which will have a great impact on the yield.

Positive impact. The role of water in promoting growth, rice is to have water all the time, which is one of the necessary conditions for strong growth.

When rice is grown, there is always water in the paddy field, which maintains the temperature of the rice at an early stage and provides the water needed for rice growth.

There must be water at all times, otherwise it will not lead to the development and growth of rice. Generally, there is water at the beginning of sowing, there is no water in the later growth process, and there is no water in the picking process.

In the process of rice planting, we need to have water in the field at all times, and when it is almost ripe, then we will release the water.

No, sometimes you will choose to release water, this should be determined according to the wisdom of the growth of water, generally there must be water when planting, and when you need to harvest, you will release water.

No, when releasing water. It is necessary to rely on the growth of wisdom to judge whether it is water or not. Generally, water must be used when sowing and water is released during harvesting.

Rice is grown in rural areas, and there is water in the field for a long time, which generally does not have much impact on rice growth. I think rice is a thin tree crop. We also have such fields in our hometown.

The mud feet are deep, and there is water for a long time. It does not have much effect on the growth of rice, but it has a certain effect at the time of harvest.

There is water in the field where there is water, so the aquatic weeds are lush during this time, so the aquatic weeds must be removed before transplanting. This is the case in our south, and the rice fields in my hometown also have long-term water. Winter has passed, spring has come, the rice fields are overgrown with weeds, it is best to remove the weeds with weeding or sodium pentachlorophenol tactile herbicide a few days before plowing the field, and then plough the field.

In this way, when transplanting seedlings, the field is flattened without affecting the root degree of the seedlings and without wasting fertilizer.

In fields where there is water for a long time, reasonable field management should be carried out after transplanting rice to ensure stable and high grain yields. After the seedlings are planted, the most important thing is to carry out reasonable field management, and the most important thing is to release water. In the early management, the seedlings that are now planted in our rural areas are usually seedlings, the seedlings are relatively short, and after the seedlings are planted one by one, the paddy fields should have shallow water.

In this way, the ordered seedlings will not float. After three or four days, according to the actual situation of the water in the paddy field, it is determined again whether it is necessary to add some water, and whether it is necessary to put the water between two and three centimeters deep so that the rice can be pollinated.

In fields where there is water for a long time, when the rice is about to ripen, it is necessary to dig a ditch from the ground to drain the water in order to harvest agricultural machinery. There is water in the field for a long time, and every year we must be mentally prepared, we have a proverb here: the crops see the ears, forty days, the ears are opened, twenty days.

That is, when it first sprouts, the rice can be harvested within 40 days, and if the ears are pulled, the rice can be harvested after 20 days. Therefore, after the ears of rice are pulled, ditches can be dug to drain the water, so that the soil in the field can maintain a certain hardness, and it can be harvested during the harvest season. Otherwise, the harvester will get stuck in the mud and will not be able to climb out.

What do you think?

Our newly transplanted seedlings are at the stage of rooting in the soil within 7 days, the water level should not be too high, it is easy to float on the water, it is easy to miss the sowing, we often have to circle this field within 2 days after transplanting the field. It is to patrol individual seedlings hot or crooked. In other words, it is necessary to correct it immediately and let the seedlings take root quickly.

Seedlings that have been transplanted for about 15 days will basically grow new roots and shoots, so top dressing is carried out. If the water level is high, the amount of fertilizer will also increase, and the dose will not increase, and the fertilizer will not be absorbed, and the fertilizer has all been precipitated, resulting in malnutrition of the seedlings, which is not conducive to development.

When the seedlings reach the end of tillering, the seedlings are luxuriant, the density is small, and they are crowded, and the seedbed needs to be ventilated and sunshine at this time. However, if the water level is high, the seedbed will be transferred to the seedbed, which has a great impact on the preparation of the seedbed. Because the seedlings cannot be exposed to sunlight, the seedlings cannot be filled.

There is a direct impact on the yield.

No, although rice should be grown in water, long-term soaking also affects growth, and when there is a lot of rain, the water needs to be drained, and the ideal growth environment for rice is silt.

There must be water in the fields at all times. Because when we planted rice, the seedlings did not fully adapt to the environment. As an aquatic plant, if rice seedlings want to adapt to the environment in the rice field faster, they must have enough water in it for them to grow, only in this way that we can better survive when transplanting rice seedlings, and this time period should be guaranteed to be about 3 7 days later

Yes, because rice requires a lot of water, it is necessary to have water.

Long-term availability of water in rice fields does not have much impact because rice is a water-loving crop. Although it does not have a great effect on growth, it is difficult to harvest. So the water should be drained at the time of harvest.

Of course, it is conducive to the growth of rice, because rice needs a lot of water.

If there is water in the rice field all year round, it will affect the growth of rice. The water should be cut off once every 10 days or so for transplanting. Long-term flooding, the root system is in a state of hypoxia, the water consumption at the seedling stage is small, and the field needs water, which is the period when rice needs the most water in its lifetime After the young panicle differentiation is over, it is best to keep water in the field during the harvest period.

Rice growth is inseparable from water, not rice growth to be in a state of flooding for a long time, after returning to green, to timely drainage for moist irrigation, if not drained to dry the field, the root system of rice still continues to absorb the free nitrogen in the soil in the field soil, resulting in a long duration of nitrogen fertilizer effect, resulting in abnormal vegetative growth.

We have never seen rice grown in any arid, barren land other than paddy fields. Why is this so?

It turns out that the ancestors of rice grew in the warm and rainy zone of southern China, and after tens of millions of years, rice's dependence on water is more prominent. Moreover, if pesticides or fertilizers are applied in the water, they can be adjusted very lightly by the water, so that the rice will not cause damage if it is eaten. If rice is planted on dry soil, it will die due to lack of water.

Also, if we think that adding more fertilizer will make it die together, we are very wrong, it will only make it die faster.

In short, rice has evolved to the point where it cannot live with water, and it must be with water forever to survive.

There are upland rice varieties and specialized varieties. Rice can also be dry-sown, and then water can be given in the later stage, or no water can be given, but the general yield is low, the weeds are tolerant, and the insect pests are more serious.

Rice is normally sown in water, and it is not irrigated when it is ripe to prevent lodging.

There is also a kind of deep rice, about 1 meter deep, which is not available in China, and is generally found in South Asia.

Rice, as the name suggests, depends on water to live, otherwise it will die.

Rice likes high temperature, humidity, short daylight, and does not have strict requirements for soil, and paddy soil is the best. The minimum temperature for seedling germination is 10 12 and the optimal is 28 32".

No, it's just that rice needs more water to grow, rather than being soaked in water all the time.

Yes, you can't leave the water until it's ripe.

<> specific introduction: 1. Rice is a kind of organism, and ordinary rice has a large demand for water, and it cannot survive in dry land, so it grows in water. Rice does not drown in water because its roots have specific voids to transport oxygen and can live in oxygen-deficient water.

2. The roots of rice have the structure and physiology to adapt to the paddy field environment, because the rice has lived in the environment of alternating water and drought for generations, its roots have the structure and physiology to adapt to the flooding and anoxic environment;

3. The root system of rice receives oxygen from the aboveground parts, and in addition to its own breathing consumption, it can also secrete oxygen to the surrounding water layer.