Plants can be sown all year round with protected facilities. But in the spring, we must pay attention to the danger of low-temperature convulsions. In the summer, shade nets are used to shield the light from high temperatures, and insect nets are used to prevent aphids from transmitting virus diseases. Baby food can be broadcast live, but also transplanting seedlings. In the spring and autumn season where the climate is more suitable, the seeds can be sown accurately, that is, 1 to 2 seeds per hole, 2 seeds per hole, 1 seed per hole, and 1 seed for cross-demanding. The amount per mu is 100 to 150 grams. Transplanting seedlings should be carried out in the 3rd leaf stage of the seedlings, with a spacing of 2030 cm.
Canola is a small plant type medium and high density leafy vegetable varieties, seed weight is generally 3 to 3.4 grams, live seed per acre 80 to 100 grams, transplanting 50 grams. The number of plants per acre is 8000-10,000, and the spacing is 20 cm and 30 cm.
Live or seedling transplanting can be. Live laborers are suitable for large-scale planting, but they use large quantities. The advantage of seedling transplanting is that, first, planting in early spring can be sowed about 20 days earlier, that is, first planting seedlings in the protected land, planting in the open ground after the earth warms up, and planting in the open ground, which can grab the morning market; second, the advance seedling can reach the height of time.目目
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