How to dry the rice field?

How to dry the rice field? Please introduce that rice should adhere to the principle of "when the seedlings arrive, the time does not wait for the seedlings" in the drying time. The so-called "unequal time for seedlings" means that enough seedlings (usually 200000-250000 total tillers per mu) should be exposed to the field, and there is no need to wait until the growth and development of rice reaches a certain period. Due to the strong tillering ability of hybrid rice, it can still continue to tiller at the beginning of drying, so the drying time should be advanced appropriately, and the drying should begin when the total number of tillers reaches 80% of the planned number of seedlings. The so-called "unequal seedlings from time to time" means that once rice enters the late tillering stage to the initial stage of young panicle differentiation, even if the total number of tillers per mu has not reached the predetermined target, it should be drained and sunburned in time. Otherwise, if the opportunity is missed, the sensitivity of rice to water will be enhanced, so it is no longer appropriate to run out of water to dry the field. In terms of the degree of drying, it is necessary to look at the fields, seedlings, and weather. Generally speaking, fertile fields with thick green leaves and exuberant growth, and low-lying cold-soaked mud fields should be exposed to the sun; thin fields with green leaves, average growth, little fertilization, and dry fields with difficulties in irrigation should be exposed light; for sandy fields with poor water conservation, clay fields that are easy to harden after sun exposure and difficult to soak after rehydration, and "Wangtian" fields that lack irrigation conditions, should not be exposed to the sun. The drying time is generally controlled in 5-7 days, so that the chicken feet crack appears on the surface of the field, the leaf color of the seedling turns pale, the leaf is as straight as a sword, it is appropriate to stand in the field without sinking, the new root appears on the surface of the field, and the old root goes down. Water should be rehydrated in time after drying the field, and 2kg of urea per mu should be applied according to the seedling growth situation, until the water is no longer cut off before heading to promote rice booting and jointing. Click to get massive rice planting technology click to get massive grain planting technology