Cover the benefits of rice field drying a few more times is more beneficial to rice?

First of all, because the situation is different in different areas, the situation of drying the field is also different, but the number of drying the field three times is a bit too much, generally speaking, it is enough to dry the field twice at most.

Rice drying, which is often mentioned as rice roasting field, is generally carried out during the period from jointing to booting stage, which plays an important role in the growth of rice. Do you know why rice fields should be sunburned? Next, let's share with you the problem of rice drying with science.

First of all, what is rice drying field?

Rice drying refers to a field management activity that must be carried out at a certain stage of rice growth. in fact, it is very simple to understand that it is very simple to drain the water from the rice field and let the paddy soil dry.

What are the advantages of drying rice fields?

Since rice needs drying, it must be beneficial. The ultimate goal of drying paddy fields is to increase the yield of rice. Because there is water in the paddy field for a long time, the oxygen content in the soil will be reduced, and the normal growth of the root will be affected if the rice root is deprived of oxygen for a long time. Proper drying can increase the oxygen content in the soil and promote the better growth of rice roots.

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Secondly, proper drying of rice can reduce the phenomenon of overgrowth of rice, which can promote the thickening of rice straw and control the upward growth rate of stems and leaves, which can naturally increase the lodging resistance of rice. This lays the foundation for the high yield of rice in the later stage.

The third is that paddy fields can reduce the increase of ineffective tillers by drying rice fields, and the speed of over-rapid development of rice can be reduced when rice is exposed to the fields, so as to achieve the purpose of reducing ineffective tillers, with fewer ineffective tillers and less nutrient loss. the panicle rate and seed setting rate of rice can be improved in the later natural stage.

Finally, rice can achieve the role of sterilization and disinfection to the paddy field by drying the field, quiet less rice has some bacterial diseases, and can play a certain role in improving the ripening time of rice.

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How to operate rice drying field? How do you grasp the time?

Rice field drying still has certain operational requirements, in addition, it must be comprehensively considered according to the local rice planting environment, as well as rice growth conditions, weather conditions and other reasons, and can not completely copy the operation methods of other areas. Need to sun the field flexibly according to local conditions.

The drying time of rice field is generally carried out in about 40 days of rice transplanting, when rice is in the period from late tillering to young panicle differentiation. Rice field drying is generally divided into "light sun" and "heavy sun". Light sun is generally enough for two or three days, and heavy sun generally takes about a week.

These two drying methods need to be determined according to the growth of rice and soil fertility. generally, rice fields with strong soil fertility need heavy sun, while rice fields with weak growth trend and weak fertility need to be sun-dried lightly.

Secondly, if the weather is hot, dry and the air humidity is small, the drying time should be reduced and shortened. On the contrary, the land with cloudy and rainy weather and high humidity needs to increase the time and frequency of drying. In addition, when rice enters the stage of young panicle differentiation, paddy field rewatering should be carried out in time to prevent the development of rice from being affected.

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