(1) Fertilization Chrysanthemum brain grows vigorously and needs a lot of fertilizer. On the basis of applying sufficient base fertilizer, topdressing should be carried out in stages. Top dressing should be done five days after planting to promote the growth of trees. After each harvest and topdressing, apply decomposed manure 1000 kg or urea 5 ~ 10 kg per mu. Perennial cultivation, after the aboveground parts are completely dried up in winter, cut off the stems, clean up the fields, and apply a layer of decomposed organic fertilizer 1500-2000 kg per mu, which is beneficial to winter protection and spring bud germination.

(2) Water management After seedling emergence or transplanting living roots, it is necessary to keep the border surface moist frequently, so as to facilitate the rapid growth of stems and leaves and keep them fresh and tender. During the period of high temperature and drought, sufficient water should be poured to meet the demand for water. Chrysanthemum brain is not tolerant to waterlogging, so it is necessary to eliminate stagnant water in time in rainy season to avoid waterlogging and rotten roots.

(3) Temperature management When the aboveground parts of plants wither due to severe frost, cut off the stems and clean up the fields. Fasten the plastic film in time after fertilization, and compact the plastic film with clods. The temperature in the greenhouse should be controlled at 15 ~ 20℃ in sunny days, 5 ~ 7℃ in rainy days and 10 ~ 15℃ at night. When the temperature exceeds 25℃, it should be ventilated in time to cool down, but too low a temperature will cause poor growth of chrysanthemum brain, so timely measures should be taken to increase the temperature and keep warm, such as covering the shed and small arch shed in the middle, and covering the grass curtain (bag) and non-woven fabric at night.

(4) Weeds in intertillage weeding field should be pulled out in time. Before closing the plant, intertillage weeding can prevent soil surface hardening and is beneficial to root growth, and the appropriate intertillage depth is 3 ~ 5 cm. For perennial cultivation, after harvesting the old stubble straw before winter, shallow mulching cultivation or mulching should be carried out to facilitate overwintering, early spring germination and early market.

(5) Plants have strong ability to regulate the branching of chrysanthemum brain, so they must be pruned to control the growth of plants, promote the germination of lateral buds, facilitate field management and enhance ventilation and light transmission. Usually, plants are harvested and topped when they are not closed. After the plant develops to a certain extent, the height should be controlled at about 30 cm, and vigorous branches, diseases and pests and dead branches should be cut off to improve the yield and quality.