The mechanized rice transplanting density is 3.6X9 inches, with 1.7-1.8 million bushes per acre and 48,000 basic seedlings. The depth of mechanical transplanting is 1.5-2cm. Datian management is slightly different from general rice. Now I have summarized the experience of mechanized demonstration technology in 2008-2009 as follows:

First, water management

It is necessary to do a good job in the management of water in the field, to achieve "thin water" management, shallow water management within 40 days after planting, when the tiller reaches 35-40 million seedlings/mu, the water is removed from the field, and the field is 5-7 days, and some ineffective tillers are killed. Water management at the booting stage and jointing stage of rice, and moist seed at the later stage.

Second, fertilizer management

Fertilization amount per mu during the whole growth period: The condition should be based on farmyard manure and organic fertilizer, and the combination of nitrogen, phosphorus and potassium. General conditions, the total amount of urea applied is 30-38 kg, 25-30 kg of calcium, 5-8 kg of potassium sulfate, 2 kg of zinc sulfate. One of the calcium is used as a base fertilizer, and the potassium sulfate is applied twice. The nitrogen fertilizer is 70% used in the early stage, and the late stage (early fertilizer) should account for about 30% of the fertilizer application.

(1) Base fertilizer: 1000-15000 kg of farmer's fertilizer and 18 kg of urea, 20-30 kg of calcium phosphate and 2 kg of zinc sulfate.

(2) Sub-fertilizer: 30 kg of ammonium bicarbonate and 4 kg of potassium sulfate.

(3) Spike fertilizer: When the main stem young ear is 0.5cm long, 5 kg of urea and 4 kg of potassium sulfate are applied.

(4) Top dressing outside the root: When the whole grain is used, the plant is sprayed with 250 g of potassium dihydrogen phosphate.

Third, pest management

(1) Focus on the prevention and control of rice false smut, and use the "jinggangmycin" or "sclerotium net" to prevent rice smut in the round and sapling stages. Pay attention to the prevention of leafhoppers. When 5% is broken, use "Tricyclazole" and "Golden Good Year" to prevent rice blast and locust. At the heading stage and the filling stage, the "early good" and "tricyclazole" and other agents are used for prevention.

(2) Strengthen the weed cleaning in the field and keep the fields and fields clean. Source of manuscript: Agricultural product quality and safety inspection station in Hongta District, Yuxi City (canola industry group)