Rice machine transplanting hard seedlings is to replace the traditional field nursery with cement site or soil site, and cultivate the strong seedlings that fit the machine. The seedlings reach 18-18 days old, the seedling height is 15-17 cm, and the leaf order is 3.5-4.0. , green leaves, tidy growth, no break when the seedlings are lifted. Its technical points are as follows:

1. Preparation of nutrient soil

Choose vegetable pine loam soil, the particle size of the soil is not more than 5 mm. Use 10-11 pieces of pans per acre of field, 3.5-4 kg of mud for each plate, 40 kg of soil should be prepared, 20%-25% of the soil does not need to be mixed into the special seedlings for machine transplanting. Use the cover mud, mix 10 grams of strong seedlings with mud in each dish, mix well and set aside.

2. Variety selection

Choose high-yield and high-quality rice-predominant varieties suitable for local cultivation, such as Zhongzheyou No.1 and Yangliangyou No.6.

3. Seed treatment

Seeding for 1 to 2 days before sowing. Seeds should be sterilized and soaked, germinated to the chest and exposed to white.

4. Determine the sowing date

Machine transplanting is stricter on the requirements of seedlings. Generally, the seedling age is 18-20 days. It is necessary to carry out batching and sowing in batches according to the progress of the operation of transplanting and transplanting, "only the fields can be smashed, and the fields cannot be smashed."

5. Quantification sowing

The nutrient soil is irrigated before sowing, and generally 110-115 grams of hybrid seeds per dish are broadcast.

6. Stacking trays, placing the tray

Place the nursery trays indoors or on the site. Place the film on the site. Leave a 50-cm walkway between the rows and rows. The height should be 10-15 disks. Place an empty seedling tray on the top and cover the plastic film. Insulation and moisturizing, stacking time 2 - 2.5 days, when the bud sheath is unearthed about 1 cm, it can be placed on the cement site or wet and dry field.

7. Uncovering film refining and fertilizer management

When the seedling grows to 1 leaf 1 heart to 2 leaf stage, the film can be uncovered and the film can be delayed. After the pan is opened, the bottom of the nutrient soil should be kept moist. The urea solution should be poured once every 4-5 days before transplanting, 2-3 grams per plate. If you do not use the strong sputum fertilization during the nursery, you should spray 2 grams of urea solution in each tray to the second leaf stage to prevent the seedlings from being deficient and affecting the growth of the seedlings.

8. Pay attention to pest control work

YT-M95

YT-M95

YT-M95

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