When is the best time to dry rice fields?

Drying the field, also known as roasting, shelving and drying, is a technical measure in rice cultivation. This can enhance lodging resistance and increase seed setting rate and grain weight, so when is the best time for rice to dry? What do you need to pay attention to?

When is the best time to dry rice fields?

The best time for rice drying is from June to July every year, that is, the late tillering stage and the early jointing stage. Of course, the drying time is different in different planting period, seedling condition, soil type, water source condition and so on. For example, the fields transplanted before May 15 should be drained immediately, and before June 1, they are expected to reach the drying standard on July 1-2. In addition, the drying time is generally about 5-10 days, when there are about 1/3 plants in the field have been plucked, should stop drying the field.

What is there to pay attention to in drying rice fields?

1. Sun field attention should not be excessive or insufficient, nor should a heavy sun, so that tillers suddenly drop rapidly, affecting the growth of strong.

two。 After drying the field, it is necessary to restore water in time and keep the field dry and wet so as to facilitate rice jointing and booting.

3. If the seedling condition is not good, it can also be combined with 4kg urea per mu of Shangshui to facilitate rapid growth recovery.

4. When rice field drying, rice field drying time will be introduced here, rice field drying, only a good grasp of the "heat" in order to achieve the desired results.

5. Field drying should be carried out in the period when rice is not very sensitive to water, that is, from the end of effective tillering to the beginning of elongation of internodes. Generally, when the number of effective tillers meets the predetermined requirements, the dry field can be drained or dried naturally to dry the field. For the paddy fields with soft and rotten soil and overgrowth, it can be carried out in other periods except from transplanting to the end of effective tillering.

6. For the old paddy field of saline-alkali soil, if the salt content of the plough layer has decreased obviously, it can also be exposed lightly, but we should be careful not to cause salt return. Rice fields in cold areas should not be exposed to the sun after young panicle differentiation to prevent chilling injury.

The drying of rice fields must be carried out at the right time, otherwise not only can not increase the yield, enhance the ability to prevent lodging, but also have the opposite effect.