NOVELTY - Organic cultivation of Brassica narinosa, comprises (i) mixing humus, peat soil and vermiculite, (ii) soaking the seeds in nutrient solution, (iii) spreading the seeds on the inserting bed, (iv) placing the seedling bed above the cover shading shed, maintaining the light transmission rate, fertilizing in evening after terminating spraying, spraying dimethoate and chlorothalonil, and (v) cutting the seedling, transplanting the survived seeds into the pre-prepared nursery ground, adding base fertilizer, and then cutting seedlings according to 15x 25 cm spacing for transplanting.    USE - The method is useful for organic cultivation of Brassica narinosa.    ADVANTAGE - The method: is environmental friendly; and has survival rate of more than 95%, good thermal insulation to absorb water, improved permeability, and ventilation, and good virus propagation, and fast rooting.    DETAILED DESCRIPTION - Organic cultivation of Brassica narinosa, comprises (i) mixing humus, peat soil and vermiculite in a ratio of 3:2:1, spraying 0.1% Bordeaux mixture, 0.1% of carbendazim and 0.1% of trichlorfon to the above mixture, uniformly mixing, sterilizing in greenhouse or an open ground to prepare into inserting bed whose length is 4.5-5 m, the width is 1.5-2.3 m, the thickness is 0.35-0.40 m, and taking 1.5% of potassium permanganate solution for sterilizing before 2 days of inserting, initiating a spraying device before 1 day of sowing, spraying on the inserting bed to reduce the substrate acid, alkalinity and salt concentration, and sterilizing with 0.2% of carbendazim drug solution, (ii) soaking the seeds in nutrient solution for 2.5 hours, where the nutrient solution comprises benzylaminopurine (0.6-0.9 g/l), alpha -naphthylacetic acid (5-7.5 g/l) and forchlorfenuron (3.2-3.8 g/l), (iii) spreading the seed of the step (ii) on the inserting bed, where the seeding depth is as follows: cutting length of 2 cm, row spacing is 6 cm, planting distance is 3 cm, taking 1.5% potassium permanganate solution for spraying immediately after seeding, and spraying 2.5 l of solution per square meter, (iv) placing the seedling bed above the cover shading shed, maintaining the light transmission rate to 50%, height to 1.5 m, observing temperature three times a day regularly, developing humidity of seedling to 80%, maintaining the temperature to 23 degrees C, opening the shed door for ventilation, and closing the shed doors and windows when temperature reduces to 20 degrees C at 5 pm, maintaining the normal temperature, cutting the water supply in January at any time, spraying 1-3% potassium dihydrogen phosphate when plugging after 15 days to the end of September for every 6 days, fertilizing in evening after terminating spraying, spraying dimethoate and chlorothalonil as pest control for preventing high temperature in the greenhouse, high humidity, virus propagation, poor seedling resistance and easy infection, spraying for 7 days, and using alternatively, and (v) cutting the seedling, transplanting the survived seeds into the pre-prepared nursery ground, where the transplanting time is 12-22 days of October, and the nursery ground is flat with a good drainage system, and deep fertile soil of the land, where the length is 5 m, and the width is 2.5 m of the bed, and adding base fertilizer, then cutting seedlings according to 15x 25 cm spacing for transplanting, where the transplanting depth is 2.5 cm, and heating through water, and managing the transplanted seedlings is as follows: (a) diluting the fertilizer composition to 300 times with water, spraying the soil when seedling and evenly spraying on the foliage 2 times/week, (b) diluting the fertilizer composition to 300 times with water, spraying the fertilizer from the beginning of the bud for 3 times in the early flowering stage, and uniformly spraying on the plant and leaves for 2 times with a time interval of 2 days, (c) diluting the fertilizer composition to 400 times with water, spraying on the flower for 1 time, and uniformly spraying on the plant avoiding the petal contact, where the transplant seedling survival rate is more than 96%, and the fertilizer composition preparation method is as follows: (1) taking (in wt.%) urea (5-20), monoammonium phosphate (2-5), potassium sulfate (4-5), potassium dihydrogen phosphate (4-6), humic acid (10-15), lignin (5-7), benzylaminopurine (3-5), water (5-10), chitosan (1-5), borax (3-7), zinc chloride (0.5-1), manganese sulfate (0.05-0.1), sodium dodecylbenzenesulfonate (0.05-0.3), ferrous sulfate (0.8-2), magnesium sulfate (0.03-0.8), copper sulfate (0.01-0.05), dimethyl sulfoxide (0.2-2), crop straw (2-10), livestock manure (2-3), where the livestock manure is pig manure, dairy manure, sheep manure and/or chicken manure, (2) crushing the plant fiber into powder, (3) mixing the livestock manure, and plant fiber powder, uniformly stirring, piling in a fermentation tank to ferment wet material, covering the upper part of the tank with a heat insulating material, maintaining the temperature to 50-70 degrees C after 60 hours, turning once every 24 times, and terminating fermentation after 3 times, and (4) filtering the fermentation product with urea, monoammonium phosphate, potassium sulfate, monopotassium phosphate, ferrous sulfate, nano carbon, humic acid, lignin, benzylaminopurine, water, chitosan, borax, zinc chloride, sodium molybdate, manganese sulfate, sodium dodecyl benzene sulfonate, ferrous sulfate, magnesium sulfate, copper sulfate, dimethyl sulfoxide into a reaction kettle, dissolving by using water, stirring and mixing at 100-120 degrees C and reacting for 2 hours, terminating mixing process, sieving by using a 200-mesh sieve, and removing the residues.