(1) All-dry land preparation: The traditional methods of irrigating fields and ploughing with water consume too much water. From the point of view of water saving and simple cultivation, the methods of less tillage, no tillage, rotary tillage and whole dry land land preparation can save a lot of water for land preparation, generally saving 50% ~ 75%, which plays an important role in alleviating the shortage of water supply during seedling raising. The common practice of land preparation technology in dry land is mainly dry rotary tillage, and mechanical deep tillage is generally done once every three years. Using dry rotary tillage, dry cultivated land, dry leveling and other all-dry operations, the difference in field flatness is only 3.3 cm.
(2) Water-saving seedling planting: The usual practice is to transplant seedlings by water, that is, on the basis of full drought leveling, the "three-sided" operation of irrigation, leveling with water and transplanting seedlings is adopted. The water used for soaking fields was cancelled, and the water used for transplanting rice seedlings and living trees was reduced. Transplanting methods are generally manual hand insertion, machine insertion, throwing, swinging and point planting. The planting density of water-saving cultivation should appropriately increase the number of holes per unit area by about 20%.
(3) Inserting "horse-racing seedlings": irrigating the fields first, then ploughing, harrowing and transplanting rice. After planting one field, put the water in another field and plant the rice seedlings as usual. In this way, as long as there is a little water 3 ~ 4 days after transplanting, the seedlings can survive and the water consumption can be greatly saved.
(4) Sending seedlings: If the seedlings are old, they should be transplanted in time in case of drought. In order to prevent the seedlings from jointing, they can be pulled up and temporarily sent to the field with water, and then formally transplanted when there is water in the field, so that the transplanting period in the field can be extended by about 20 days. If the seedlings are delivered late, the seedlings have been jointing and the young ears have begun to differentiate before hydroponics, we can make up for it by cutting the seedlings and planting the old seedlings to regenerate rice.