Onion is a kind of vegetable that needs more fertilizer. It usually needs dressing 3-4 times from planting to harvesting. For a long time, some onion farmers are accustomed to ditching fertilizer, so that not only is it easy to cut off onion roots, but also often because of excessive concentration of fertilization and burn young root onions, resulting in dry tip and dead leaves phenomenon.
According to the growth habits of scallops, which are tending to be fat, water, and temperature, the correct top dressing method should be divided into three steps: root-side spreading, earth-holding pressure, and watering.
"Spouting at the root" means weeding and loosing soil between ridges of green onions and spreading the fertilizer evenly on the surface of the green onions. "Pipe soil pressure" refers to soil fertilization after fertilization, in order to reduce the loss of fertilizer volatilization, promote softening and elongation of light blue, and enhance wind resistance. "Watering" refers to watering within two days after soil cultivation, so that the fertilizer dissolves in the soil and decomposes rapidly, providing healthy growth and development of Welsh onion.
According to the growth habits of scallops, which are tending to be fat, water, and temperature, the correct top dressing method should be divided into three steps: root-side spreading, earth-holding pressure, and watering.
"Spouting at the root" means weeding and loosing soil between ridges of green onions and spreading the fertilizer evenly on the surface of the green onions. "Pipe soil pressure" refers to soil fertilization after fertilization, in order to reduce the loss of fertilizer volatilization, promote softening and elongation of light blue, and enhance wind resistance. "Watering" refers to watering within two days after soil cultivation, so that the fertilizer dissolves in the soil and decomposes rapidly, providing healthy growth and development of Welsh onion.
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