Drying fields should generally be carried out at the end of the tillering period and the beginning of the jointing period. Prematurely, it affects the production and growth of effective labor. It is too late, the new childbirth grows excessively, and the speed of young panicle differentiation is delayed. With medium tillering capacity, 25 to 30 holes per hole should be drained. The growth of rice stems and leaves was excessive, and the amount of nitrogen fertilizer was too much. The black leaves of the rice plants should be reclaimed and sun dried. On the other hand, if the rice plant grows weak, it should be exposed to the sun, light or not. The soil is deep and fertile, and the rice plant shows a lengthy appearance. The dark leaves should be sunburned and reheated. Thin soil, poor fertilizer and water should be late sun, light sun. The clay layer should have a low water permeability and should be exposed to the sun and sun; When about 1/3 of the plants in the field have been jointed, the field should be stopped and the normal water management should be carried out to ensure the water requirement during the differentiation of the panicle and promote the growth and development of young panicle differentiation. At this point should be properly deep irrigation, control the water layer in 5 to 6 cm. The drying time is generally 5 to 10 days. Lightly drying blocks, to achieve a fine slit on the field surface, no sticking mud on the human foot; In the sun drying field, there is a chicken-claw-like crack on the sun surface; In the reheating field, the white root is exposed and the color of the leaves fades. The leaves are straight and immediate. Hydraulic Power Unit,Hydraulic Pump Unit,Hydraulic Power Station,Power Unit,Hydraulic Poppet Valve,Hydraulic Pilot Valve Changzhou Satidi Import and Export Co., Ltd. , https://www.czguanjiechuck.com