(1) Seeding, seedling cultivation and strong seedling are the key to obtaining high-yield and high-quality rapeseed. In addition to timely sowing, Miao Qing should choose fertile loam or sandy loam, and apply 1500~2000 kg of stalks per 667 square meters before sowing. Planting 0.5~0.75 kg per 667 square meters of seedbed, it can be cultivated in 6670~10005 square meters. Weeds are removed in time after emergence. After the real leaves are unfolded, the seedlings and top dressings are watered in batches. The seedling age is 25~30 days, and 5 true leaves are suitable.
(2) The adaptability of the planted seaweed to the soil is strong, so it is better to plant the soil with good fertilizer and water retention. Deeply turn the ground before planting and apply enough base fertilizer. The row spacing of planting plants is generally 20~25 cm 30~50 cm, which can be determined according to different varieties.
(3) Field management Seaweed has a long growing period, and the vegetable harvesting time is longer. The vegetable meal is tender and tender, and the fertilizer should be applied to the fertilizer and topdressing. Before the planting, every 667 square meters of fermented organic fertilizer can be applied to 2000~3000 kg. After planting, the seedlings should be topdressed in time to promote seedling growth. Later, in the vigorous growth of the leaves and the continuous formation of the rapeseed, it is necessary to topdress. During the formation of rapeseed, it is necessary to maintain a relatively humid environment. The soil is too dry, not only reduces the yield and quality, but also prone to viral diseases; if it is too wet, the wind will infect soft rot. Before entering the winter, you should control the fertilizer and water to avoid excessive growth and cold damage.
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