NOVELTY - Organic leek planting comprises e.g. selecting full seed without impurity and pest, soaking in water, wrapping using wet cloth for germination, washing with water, seeding, before planting, using organic fertilizer comprising farmyard manure, chicken manure, and plant ash, when leek grows to 8-12 cm, pouring pig manure water 1 time/day, watering, when the leeks grow to 12-18 cm, pouring pig manure water 1 time/day, continuous watering, cutting leek, preparing Pyrethrum, castor-oil plant, radix stemonae and camphor leaves powder, mixing, adding water, boiling and filtering.    USE - The method is useful for organic leek planting (claimed).    ADVANTAGE - The method can increase leek nutrition quality, has no impact on the ecological environment, and assures safer production of leek.    DETAILED DESCRIPTION - Organic leek planting comprises (i) seed processing: selecting full seed without impurity and pest, soaking in water for 6-24 hours at 30-50 degrees C, after dipping the seed, wrapping using wet cloth at 15-25 degrees C for germination, washing with water for 1-2 times a day, seeding with seed germinating time of more than 60%, (ii) carrying out fertilizer management: before planting, using 2000-5000 kg/mu organic fertilizer comprising farmyard manure, chicken manure, and plant ash, when leek grows to 8-12 cm, pouring pig manure water 1 time/day, continuous watering for 2-4 times, each time pouring 200-500 kg/mu, when the leeks grow to 12-18 cm, pouring pig manure water 1 time/day, continuous watering for 1-2 times, each time pouring 200-500 kg/mu, cutting leeks after 1-2 days, pouring pig manure water 1 time, each time pouring at 400-800 kg/mu, and (iii) preventing and treating insect pests: selecting Pyrethrum, castor-oil plant, radix stemonae, and camphor leaves as insecticidal raw material, weighing, drying to water content less than 11%, then crushing to particle size of more than 40 meshes to obtain Pyrethrum, castor-oil plant, radix stemonae, and camphor leaves powder, mixing uniformly the plant powder, adding 20-40 times of clean water, boiling for 5-10 minutes, filtering with two layer filter gauze, taking filtered liquid, obtaining medicinal liquid, cooling medicinal liquid and sprinkle spraying on leek leaves surface.