What is the effect of transplanting rice seedlings with a short seedling age?

Hello! Under normal circumstances, seedlings can be transplanted at 33-55 days. However, we can also choose the best transplanting time according to the type of seedlings and the climate in which they are raised.

Rice seedlings can generally be transplanted within 55 days, of which 40 days and 45 days are the best.

When in doubt, please ask.

Summary. Hello, I am glad to answer for you, the height of the seedlings should be controlled within 15cm as much as possible. Dry-bred strong seedlings in Northeast China are generally transplanted around the leaf age, and the plant height is about 11-12 cm when the seedlings are old, which is the normal height of strong seedlings.

If it reaches 15 cm, the distance between the stems and leaves of rice is too large, which is not conducive to the rejuvenation of seedlings. If the height of the seedling is more than 15 cm, it is not a strong seedling, the stem is weak, the leaves are slender, the green is slow, the seedling death rate is high, and the height is too high, it is easy to transplant the leaves into the field when the seedling paws are transplanted during mechanical transplanting, and the root system is outside.

If I spray 920 by mistake, will it affect after transplanting?

Hello, I am glad to answer for you, the height of the seedlings should be controlled within 15cm as much as possible. Northeast dry breeding seedlings are generally transplanted around the leaf age, and the plant height is about 11-12 cm when the seedlings are old. If it reaches 15 cm, the distance between the stems and leaves of rice is too large, which is not conducive to the rejuvenation of seedlings.

If the height of the seedling is more than 15 cm, it is not a strong seedling, the stem is weak, the leaves are slender, the regreening is slow, the hail rate of dead seedlings is high, and the height is too high, it is easy to transplant the leaves into the field when the seedling paws are transplanted during mechanical transplanting, and the root system is outside.

920 refers to gibberellic acid, which is a growth regulator of various crops, the main role is to promote plant growth, can promote plant cell elongation, break dormancy.

Is there any remedy for that?

920 is gibberellin, which can promote plant growth and development, it is stable under acidic conditions, and is easy to decompose when alkaline. You can use alkaline substances or alkaline pesticides to speed up its decomposition. Gibberellin antagonists paclobutrazol or mequat can also be used to inhibit the growth of phytos.

As long as it can grow without problems, it's generally fine. Attention should be paid to coordinating the relationship between oxygen, water and temperature during seedling management, which is the key to the technology of dry breeding and strong seedlings of rice. The first is to prevent the temperature in the shed from being too high to breed weak seedlings, the second is to prevent low temperature and water shortage from breeding small old seedlings, and the third is to prevent the temperature from rising and falling to cause blight and cause dead seedlings.

1. Temperature conditions After sowing to the week of emergence, the weather is relatively cool. The large and medium sheds are mainly sealed and insulated, and care should not enter and exit with cool breezes.

2. Water management Try to extend the first and second watering time, that is, after the seedlings come out, do not water first, and then water the first time when the seedbed soil is hard to touch. After watering, water again when the bed soil is very dry.

3. Ventilation seedlings begin to ventilate seedlings when they are one and a half leaves, and squatting seedlings prevent growth. Generally, as the seedlings get bigger and the weather gets warmer, gradually extend the ventilation time and increase the ventilation openings.

4. Disease prevention at the seedling stage is an important time to prevent seedlings from getting sick when they are 1 and a half leaves to 2 and a half leaves, and it is necessary to focus on preventing the occurrence of bacterial wilt and blight.

5. Fertilization at the seedling stage Rice is easy to lack fertilizer after 2 and a half leaves, and the leaves of seedlings will generally be yellow and not so green, at this time, we should pay attention to fertilization once, you can use Yanwo potassium dihydrogen phosphate + Yanwo zinc fertilizer, the effect is better.

It is advisable to plant seedlings at a height of 13-15 cm. The height of the seedling is more than 15 cm, it is not a strong seedling, the stem is weak, the leaves are slender, the regreening is slow, the seedling death rate is high, and the height is too high, it is easy to transplant the leaves into the field when the seedling paws are transplanted during mechanical transplanting, and the root system is outside. Therefore, it is necessary to control the height of the seedlings, and the simplest way is to adjust it through moisture and ventilation.

It will affect the survival rate of rice seedlings, and rice seedlings will be affected after a certain seedling age (generally according to the variety, region, climate, environment, etc.). The whole seedling period is generally about 25 to 40 days, if the stem hairs are relatively hard, it is longer than the normal growth period of the seedling, and the leaves are slightly wider than the normal length of the seedling. It has entered the normal growth period, but it is not the seedling stage.

In the planting process, its stem is easy to break, so, after planting, because it is the first planting, the root system is not deep, the grip is not firm, the leaves are long and large, the stem is high, and it is easy to break and fall in the wind, which is easier to sell to cause floating roots, and the rice seedlings are exhausted.

Under natural light, rice grows normally. When the natural light is 50%, the rice grows slowly. If the light intensity drops to 5% of the natural light intensity, the growth of the rice will stop or even die.

All green plants, such as rice, are produced in sunlight, which is also the process of making nutrients. Rice requires a lot of water to grow. When water ** is insufficient, the physiological function of the plant decreases.

In particular, now is the tillering period of rice, which is the peak period when rice needs water, so there is no shortage of water.

Therefore, it should be remembered that shallow irrigation can now be an aquifer of 3-5cm, which cannot submerge the rice core, and in agricultural production, late planting or old seedling planting due to crop contradictions, lack of water, lack of labor and other reasons occur from time to time. For such plots, it is necessary to strengthen the management of fertilizer and water, promote the early growth and rapid development of rice, and also achieve a good harvest. Increase the number of seedlings per hole to ensure the number of effective ears.

The application of slow-acting nitrogen (urea) in basal fertilizer and top dressing is changed to available nitrogen, ammonium bicarbonate takes 4-5 days from fertilization to be absorbed and utilized by rice, while urea takes 7-10 days, it can promote the early growth and rapid growth of rice, rice transplanting is an important part of planting high-yield rice, many people are concerned about rice transplanting, when to transplant rice is also a controversial topic.

will affect. After the transplanting seedling age has passed, it is not resistant to wind, and the tillering is less, and the yield is affected.

After the seedling age stage, it will affect the growth of rice in the mountains.

Excessive seedling age will affect the regreening, tillering, shortening of the growth period of Honda, and reducing the yield. Tease.

Passing the zero stage of rice will affect the growth of rice.

After the seedling age, it will affect the growth of rice, and it is very important to transplant rice in time.

It will affect the growth of rice, because after the seedling age will be affected by the weather of Ziyan, if the temperature of the jujube rock gradually becomes cooler, the growth and maturity of rice will gradually slow down.

Rural rice transplanting is strictly controlled by time, and if the seedling age period is exceeded, the growth of rice will be affected. It can even lead to poor seedling growth or death.

Rice should be transplanted because:

1. One is not transplanted, which will not grow normally due to excessive density;

2. One is that through transplanting, it can promote the more developed root system, help to increase effective tillering, and improve the yield per unit area of rice.

3. Centralized seedling economy. Centralized fertilization management of seedlings saves money and effort in pathogen control.

4. The reason for seedling raising is to reduce the reproductive period, and the seedlings can mature one month in advance, which is convenient for planting crops in the second half of the year.

Rice is a fibrous root system, adventitious roots are developed, panicles are panicles, and self-pollination. It is an annual cultivated grain. The stalk is erect and 30 100 cm high.

Leaves alternate, linear-lanceolate, leaf tongue membranous, 2-lobed. Panicles are loose;Spikelets oblong, flattened on both sides, containing 3 florets, the spikelets are extremely degenerate, leaving only traces, the apex florets are bisexual, the outer barley is boat-shaped, and there are miscanthus flowersStamens 6;Degenerate 2 flowers are left only under the flowers of both sexes, and are often mistaken for. Caryopsis.

Native to China. It is one of the world's main food crops. China's rice sown area accounts for 1 4 percent of the country's grain crops, while the output accounts for more than half.

It has been cultivated for 14,000 to 18,000 years. It is an important food crop; In addition to edible cinder, starch, wine, vinegar, rice bran can be used to make sugar, oil extraction, furfural extraction, for industrial and medical use; Rice stalks are good feed, papermaking raw materials and weaving materials, and grain buds and rice roots can be used for medicinal purposes.

There are three factors worth considering: a tie. During the transplanting process, the taproot of rice is often torn off, which promotes the growth of lateral roots, which are conducive to nutrient absorption.

Second, the environment. The healthy growth of seedlings requires certain conditions. And in direct planting in the field, this is not easy to control.

3. Economy. Centralized fertilization management of seedlings saves money and effort.

Rice cultivation is the method of seedling transplanting, and the seedling field is the field of rice seedlings, that is, the seedbed of rice. Rice seedlings can be transplanted after growing in the seedbed for about 1 month, and rice transplanting is the transplantation of seedlings from the seedling field to the field (paddy field).

It can be sown directly. However, the yield is low, because the seedlings are not neat, there are many places, there are few places, there are more places where the nutrition is insufficient, and the yield is less in the few places, so the way of live broadcast is not adopted. The transplanted seedlings are relatively uniform, and the poor seedlings are eliminated, and the yield can be improved.

Rice transplanting dry farming refers to the rice cultivation method under the condition of watering in the dry field, that is, all the operations of rice planting, management, harvesting and so on are carried out under the conditions of dry field, it not only solves the current situation of low and unstable grain yield in the middle and low yield fields, but also solves the problems of water shortage in the waterlogged land, and also solves the problem of water shortage in the rice field, one hectare of transplanted dry rice is 10,000 tons of water than rice, and the new technology of rice transplanting dry farming can make the input of corn to produce high-yield and high-quality rice. Rice can be grown without a rice field.

It will affect the survival rate of rice seedlings.

After a certain age of rice seedlings (generally rice seedlings according to the variety, region, climate, environment, etc., the whole seedling period is generally about 25 40 days. The subject did not say how long the seedling age exceeded), the stalk is stiff and stiff, and the seedlings have been longer than the normal long growth period, and the leaves are slightly wider and longer than the normal length of the seedlings. It has entered the normal growth period, not the seedling support period.

During the planting operation, its stalk is easy to break, after planting because it is the first planting, its roots are not deep (raw), the grip is not firm, its leaves are long and large, the stalk is high, it is easy to break and fall when it is windy, and it is easier to cause"floating roots", thus causing the depletion of rice seedlings.

Rural planting will definitely affect the growth of rice after the seedling age. Rice seedlings that are too old will cause seedlings to head early. Each seedling age was sown at different periods and planted at the same time, and with the extension of seedling age, the regreening period of seedlings was extended accordingly.

Yes, because the planting time of rice is very important, once the planting period has passed, then transplanting rice will affect its growth.

Rice seedling age is crucial for rice, and farmers should be proficient in this knowledge.

Rice seeding refers to the germination of the seed grain directly sprinkled in the field, of course, when sowing the seed grain, the field should be leveled and prepared. Transplanting refers to planting rice seedlings in the field that has been leveled, and the transplanting field is divided into dry load and hydroponics. Hope to adopt.

In agricultural production, due to the contradiction of stubble, water shortage, and lack of labor, the situation of late planting or planting of old seedlings occurs from time to time, and the management of fertilizer and water should be strengthened for such plots, so as to promote the early growth and rapid development of rice, and better harvests can also be obtained.

The second is to change the bottom fertilizer deficiency front and top dressing to apply late-acting nitrogen (urea) to the application of available nitrogen (ammonium bicarbonate). It takes 4-5 days for ammonium bicarbonate to be absorbed by rice from fertilization to spine credit, while it takes 7-10 days for urea. It can promote the early growth and rapid germination of rice.

The third is to reapply the bottom fertilizer and reapply the tillering fertilizer early. In this way, the occurrence of tillering can be promoted in a short period of time, and more effective panicles can be obtained.

This will reduce your losses, even if the reduction in production is not too large.