Sugar beet sowing and seedling management

A paper tube nursery transplanting

1, nurture strong seedlings. . Do a good job in the mix of seedbed soil, organic fertilizer and seedbed fertilizer, start planting seedlings at the beginning of April; increase insulation measures after seeding to prevent freezing and freezing injury; control temperature and moisture reasonably after emergence, and spray seedlings in time to prevent The shoots are long and leggy; conditionally, the roots are cut after the leaves are extracted to speed up the development of the root system, and chemical sprays are used to prevent damp-blight.

2, soil fertility protection. While doing a good job in seedbed management, the land ploughing, levelling, fertilizing and repression of the transplanted plots should be done as early as possible to improve the quality of transplanting.

3, timely transplanting. Maturity up to 30 to 35 days should be transplanted. Transplanting is appropriate in early May and no later than late May. Delayed transplanting will lead to a significant reduction in production.

4, Li Bao entire seedlings. Before the transplanting, the seedbed should be timely and properly watered; immediately after transplanting, the seedlings should be well watered; after the seedlings are transplanted, loose soil should be used for weeding to promote rooting of the seedlings and rapid growth of the shoots; attention should be paid to the control of beet weevil and other pests.

Second, prevention and control of plant diseases and pests

Beet emergence stage, with the temperature rise, field weed breeding, and pests often occur, such as beet weevil, a beetle and soil surface larvae will bite the seedlings, resulting in lack of seedlings and broken ridge. Therefore, timely field weeding and insect inspections should be conducted in the field, combined with field weeding and spraying insecticides to effectively kill field pests.

(I) Blight

1. Use fungicide to treat seedbed soil: Mix 250 ml per mu (4 paper tubes) 250 kg seedbed soil plus 50% thiram WP 150 to 250 g; or use 50% sulfoxide (dricking) wettability Powder 50 ~ 60 grams / acre mix, pay attention to excessive or mixed unevenly prone to injury.

2, using fungicides to treat seed-covered soil: every 4 nursery beds with 15 kg cover soil plus 5 grams of 70%? f mildew WP, or plus 8 grams of 50% thiram, or 4 grams mixed 70% Ff moldy spirit and 8 grams of 50% thiram, mix and cover the soil.

3, pay attention to control the temperature, timely scientific ventilation after emergence. After emergence, if blight is found, every 4 beds can be sprayed with 70%?f orally 5 to 5 grams of 5 to 7 kilograms of water or 5 to 8 grams of water to 5 to 7 kilograms.

(b) Elephant armor, jumper, etc.

1. Based on the prevention and control of agriculture, implement crop rotation for more than four years, eliminate continuous cropping and planting, and select former crops as field crops such as beans, wheat, and corn. Proper early sowing can also reduce pests.

2. The tube nursery should be sprayed before transplanting. For every 4 nursery beds, use 40% acephate 50-80 ml, or use fipronil (fipronil) 5% suspension 20 ml, or use 25% cloth 6 to 12 grams of hydrazide 4 to 8 kg of water spray. Infested areas with severe pests can be sprayed with 4.5% beta-cypermethrin (Kung Fu) 10-20 ml and 40% acephate 50 ml per 4 beds.

3. After transplanting, use 2.5% deltamethrin (disease) 25ml (or other chrysanthemum agent) or fipronil (fipronil) 5% suspension 20ml or 48% chlorpyrifos cream per acre 50 ml or 40% acephate 80-100 ml or 4.5% beta-cypermethrin (Kung Fu) 10-20 ml or 20% high chloride 30-40 ml or 25% Aktai (Thiamethoxam) water dispersion granules Agent 6 to 12 grams. In case of severe pest occurrence, it is possible to use a dose of 4.5% alpha-cypermethrin (20 ml) and 40% acephate (80 ml) per acre.

(c) Scarab larvae, tigers and golden needles

1. Scarab occurs in severe plots. It is possible to spray 20% of the chloric indomethacin 50ml with 30kg of water per mu, or 1000x spray with phoxim, trichlorfon or high chlorine horses.

2. When the seedling stage is seriously damaged, use 50% phoxim or 48% chlorpyrifos 600 to 1000 times for directional irrigation or evening spray control, or combine irrigation with 48% chlorpyrifos 500 to 1000 ml for irrigation.

3, bait law: In the field with 50% phoxim 50 ml plus sauteed wheat bran or corn flour 5 kg, in the evening sprinkled sugar beet between the control pests.

Third, weed control at seedling stage

1, sugar beet field weeds 3 to 4 leaf stage, per acre can be used 16% sweet and peaceful 330 ~ 400 ml (depending on the situation may be grass) or 21% bethanexyl fur yellow 400 ~ 530 ml, plus 10.8% quinolone spirit (fine grater grass) 50 to 80 ml or 10% quizalofop-p-pill 80 to 100 ml spray.

2, prevention and treatment of perennial grass weeds, per acre can be used 15% of refined fluazifop-Porcine Ling (fine steady kill) EC 50 ~ 70 ml or 35% fluazifop-Pordrax (Steadily killed) EC 50 ~ 100 ml ( Can be mixed with Tranoxifene Yellow or Sweet and Stout) or 20% dilute acridine (acquired net) 100ml of emulsifiable concentrate or 12.5% ​​of pomegranate 85-100ml or 24% clethodim (Toxicone, Serrat) EC 30 ~ 40 ml or 10.8% of high-efficiency flupirtine (Saobu Lai) EC 30 ~ 35 ml. For the prevention and treatment of perennial grasses such as Phragmites australis, Imperata cylindrica, and Bermudagrass, it should be applied 2 times at intervals of 1 month.

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