Cultivation methods and matters needing attention for multihead chrysanthemum
As the protagonist of the autumn courtyard, multi-headed chrysanthemum is very popular among gardening enthusiasts for its lush flowers and long viewing period. Mastering scientific breeding methods can not only prolong the flowering period, but also cultivate high-quality plants with full flower shapes and beautiful colors. In this paper, we will systematically analyze the entire process of multihead cultivation from soil substrate to flowering management. Core breeding technical points Soil substrate configuration principle High-quality cultivated soil must have both water retention and air permeability. It is recommended to use a gold ratio of 4:3:3:1: legus soil provides organic matter, river sand enhances drainage, and cake fertilizer supplements trace elements. Add 500g of calcium superphosphate +300g of urea per cubic meter of substrate as base fertilizer, and control of the pH value within the range of 6.2-6.8 is most conducive to root development. The intelligent irrigation system adopts the watering rule of "see dry and wet", maintaining the substrate humidity of 40%-60% in spring and summer, and cooperating with foliar spray to maintain the air humidity of 70%. In winter, water supply is supplied by dipping basin method, and the interval between each replenishment is extended to 7-10 days. Special reminder: The water quality needs to be dechlorinated after standing for 3 days, and the temperature difference between the water temperature and the environment should be ≤5℃. Photoperiod control requires 6 hours of direct light every day, and 30% sunshade net protection is required in midsummer. Use a fill light to extend the light to 14 hours/day during the bud appearing period, which can advance the flowering period by 7-10 days. Pay attention to rotating the flowerpot regularly to ensure that all sides receive uniform light. The nutrient supply plan applies N-P-K=15-30-15 water-soluble fertilizer during the growth period, and 800-fold solution is used to irrigate roots once a week. During the bud pregnancy period, potassium dihydrogen phosphate foliar fertilizer was used alternately with EM bacteria organic liquid fertilizer. Particularly recommended is sesame paste residue fermentation fertilizer: diluted at a ratio of 1:50, rich in linoleic acid to promote anthocyanin synthesis. Key maintenance nodes control flower bud control technology After the main branch has sprouted, the top 3 full flower buds are retained, and only one dominant flower bud is retained on the lateral branch. The "two-time picking" method was adopted: the seedlings were topped for the first time with a height of 15cm, and the secondary branches were pruned twice with a height of 10cm. Combined with the treatment of 200ppm gibberellin, the branch quantity could be increased by 30%. Operation specifications for basin replacement When changing basins in spring every year, select a new container that is 5-8cm larger than the original basin. After removing the pot, prune 1/3 of the old roots and soak them in 800 times carbendazim solution for disinfection. After changing the pot, place it in a cool place to slow down the seedlings for 7 days, and use it with rooting powder solution to promote new roots.
Through scientific management of temperature, light, water and fertilizer combined with fine plant type control, multihead can achieve the ornamental effect of exceeding 50 flowers per plant. It is recommended to establish a maintenance log to record the specific time and effect of each fertilization and pruning, and gradually form a personalized cultivation system so that each cluster of chrysanthemums can bloom in the most perfect posture.