Scientific fertilizer application
Make full use of organic fertilizer as base fertilizer Add 20 kg of lime powder per cubic meter of manure and mix thoroughly and then apply it to the field. Fertilization should be deepened to reduce the spawning of seed fly and effectively reduce the damage of earthworms. Promote the use of commercially available industrialized organic fertilizers and organic-inorganic compound fertilizers. Grass ash Sprinkle the plant ash (without rain) on the surface of the rake, mix it thoroughly, and mix the ash into the soil, or open the ditch (appropriate to see the roots) into the ditch and cover the soil. Application of ash and stubborn land is not conducive to louse life, which can play a preventive role, and can loosen the soil, increase the content of phosphorus and potassium in the soil, so that the young leek seedlings strong, increase production. Ammonia fertilizer with water flushing During the growth of leeks, 15 to 25 kg of ammonia per acre, diluted by 80 to 100 times, and irrigated or flushed with water, have a significant effect on killing fleas. Combined with watering, ammonium bicarbonate 15-20 kg can be effectively killed. Watering fresh urine After each harvest of leeks, immediately use fresh urine to pour the pods. When the soil is wet, it is not water. When the soil is dry, it will be 50% water. After pouring, it will grab a handful of ash to protect the leeks. This will make the surface of the soil often dry and the eggs cannot hatch. This method is suitable for small-scale implementation of farmers. ChangChun E-vida Technology Co.,ltd , https://www.evidatech.com