What fertilizer is good for leek topdressing?

Time for topdressing chives

The best time to apply top dressing to leeks is around the beginning of autumn, which can guarantee the growth needs of leeks and ensure the accumulation of nutrients in the future. After the leeks survive, you can start applying top dressing. It is recommended to apply top dressing every 5-6 days until harvest. After that, you should apply top dressing once or twice after each harvest.

What fertilizer to use for leek topdressing

Before planting leeks, base fertilizer can be applied, using fermented human feces or ammonium sulfate. During the vigorous growth period of leeks, nitrogen fertilizer should be applied 2-4 times in combination with watering.

Should urea or compound fertilizer be used for topdressing chives?

Compound fertilizer should be used for topdressing leeks. Leeks have a very strong adaptability to soil and environment, but it is best to choose loose and fertile soil for planting. Leeks need a lot of nitrogen as a supplement during the growth process, and also need to be supplemented with appropriate amounts of phosphorus and potassium fertilizers. The purpose of this is to increase the yield and quality of the main edible part, the leaves.

Method of topdressing chives

When the height of the leek seedlings is 12-15 cm, they need to be top-dressed in combination with watering, with ammonium sulfate or human feces and urine. During the growth period, attention should be paid to the combination of trace elements and macroelements, the combination of organic fertilizer and inorganic fertilizer, and spraying of high-lipid film to ensure the survival rate of the leek and effectively increase the effective ingredient rate of the fertilizer.

Precautions for topdressing chives

Chives are not tolerant of concentrated and raw fertilizers. When applying fertilizer, pay attention to the principle of applying thin fertilizers frequently. The applied base fertilizer must be fully decomposed and diluted with water. Do not apply fertilizer at noon when the temperature is high and the light intensity is high, otherwise the heat generated by the fertilizer will burn the roots and cause the death of the entire plant.

After the chives bloom, you can pinch off the young flower stalks to reduce nutrient loss and help nourish the roots. At this time, you can apply 1 to 2 times of thin human manure and urine. In autumn, leeks can generally be harvested 1-2 times, and top dressing is needed 1-2 times. Harvesting and top dressing can be stopped in late September.