Autumn coriander, remember "three defenses"
A coriander that is planted in the open field in summer and autumn, although it will not be twitched due to low temperature in the seedling stage, it will be twitched due to long-term sunshine. This requires the selection of coriander-resistant coriander varieties in production, while strengthening fertilizer and water management, spraying new highs. The lipid film is 800 times liquid once to reduce the occurrence of convulsions. The whole growth period of parsley should be poured with small water spray vegetables and strong stems 5 to 7 times. The first three waters should be sprayed with vegetables and strong stems every 10 days. Watering vegetables every 6 to 7 days from the fourth water. Strong stems once. When topping water, lightly pick up the seedling fertilizer, apply about 10 kilograms of urea per acre, and then chase the urea once every 2 to 3 times of water, 10 to 12.5 kilograms per acre.
2. The coriander grown in the autumn of the red stalk is red, and its stems and leaves are reddened by strong light, especially when the seedlings are too late (plant height exceeds 8 cm). Prevent the emergence of red stalks in coriander. First, it is necessary to spray the seedlings in the morning. Each seedling is sprayed with a new high-fat film. In the production, the seedlings should be as long as 3 cm high, and the plant spacing after the seedlings is about 2 cm. It is necessary to cover the sunshade net. It is conditional to take a scaffold with a height of 80-100 cm after sowing, and the shed is covered with a shade net.
The three rain-proof autumn rains are more harmful to the coriander seedlings. After the heavy rain, they suddenly turn fine, which is easy to cause the coriander to be bad. After the rain, lightly pour water again (the amount is not to submerge the seedlings), spray a new high-fat film once, can prevent the coriander rotten heart.
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