How is the effect of ditching and topdressing with green onions?

How is the effect of ditching and topdressing with green onions? Please introduce that for a long time, many vegetable farmers are used to ditching and topdressing green onions at one time, which is unscientific. Because, this is not only easy to cut off the roots of green onions, but also burn out the tender fibrous roots of green onions due to excessive concentration of fertilization, resulting in the occurrence of dry tips and withered leaves, affecting the quality of green onions and reducing yield. The correct method of fertilization should be to follow the principle of "eat less and eat more", from planting to harvesting and topdressing for 3-4 times to prevent fattening in the late growth stage of green onions. Each time the fertilizer should be spread evenly on the surface of the green onion root, and then the soil should be fertilized to reduce the volatilization loss of the fertilizer, promote the onion softening and elongation, and enhance the wind resistance. After fertilizing, it is necessary to water once within two days to make the fertilizer dissolve in the soil and decompose quickly, so as to promote the healthy growth and development of green onions. Click to get more green onion planting techniques click to get more vegetable planting techniques