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The correct method of fertilization is: in accordance with the principle of “eat less and eat more mealsâ€, from the planting of green onions to harvesting 3 to 4 times, to prevent de-fertilization in the late growth stage of green onions. Every time the top dressing is applied, the fertilizer should be evenly spread on the surface of the root of the green onion, and then the soil is covered with fertilizer to reduce the volatilization loss of the fertilizer, promote the whitening softening and elongation, and enhance the wind resistance. Water is poured once within 2 days after fertilization, so that the fertilizer is quickly decomposed and the green onion is promoted to grow vigorously.
For a long time, many vegetable farmers have been accustomed to ditching for one-time topdressing of green onions. This is unscientific because it is not only easy to cut off the roots of green onions, but also burns the young roots of green onions due to excessive concentration of fertilization, leading to dry tips. And the occurrence of dead leaves.
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