How to care for hydroponic chrysanthemums
Article summary: An introduction to the care of hydroponic chrysanthemums, how to maintain them, and the following sections will provide you with an understanding.
Recent research has shown that hydroponic chrysanthemums have higher chlorophyll content, more dry matter accumulation, lower transpiration intensity, faster growth and development, earlier budding and coloring by 8 to 12 days, a flowering period of 50 to 60 days, which can be brought to market earlier, increasing the selling price and ornamental value. The specific operation methods are as follows.
Cutting propagation in mid-June, select moderate-sized plants, using overwintering or spring planted seedlings as the mother plants, cut the top丰满, disease-free branches as cuttings. The cuttings are 5 to 7 cm long, remove the base leaves after picking, retain 2 to 3 small leaves, the cut surface is horseshoe-shaped, the seedbed uses vermiculite as the substrate, put it in the pot, first disinfect with a 50% carbendazim wettable powder 500 times solution. The depth of cutting is about 2 cm, with a spacing of 3 cm between plants. After cutting, spray thoroughly with water, place the pot in a semi-underground seedbed, covered with plastic film and reed matting. Spray water every 3 to 5 days after cutting, and the seedlings can be transplanted after about 20 days.
Preparation of nutrient solution The inorganic nutrients required for preparing the nutrient solution are: potassium nitrate 69%, superphosphate 18%, magnesium sulfate 9.7%, urea 1.4%, ferrous sulfate 0.69%, manganese sulfate 0.27%, phosphoric acid 0.27%, anhydrous calcium chloride 0.067%, and zinc acetate 0.067%.
The total amount of inorganic elements to water ratio is 1:500 in the early stage (mid-July to early August), 1:300 in the middle stage (mid-August to mid-September), and 1:400 in the late stage (late September to mid-October), with a pH value of 5 to 5.5. In early July, transplant the chrysanthemum seedlings with intact roots into new pots with an inner diameter of 20 cm and a depth of 14 cm, using vermiculite as the substrate and covering the bottom drainage holes with tiles.
After planting management, spray thoroughly with a spray pot, cover the top with plastic film to prevent rain, and cover with reed matting to shade light. Remove the plastic film and reed matting after 7 to 10 days of seedling establishment, and start applying nutrient solution every 5 days. After application, spray some clean water to prevent the nutrient solution from staying on the leaves and causing damage.
Apply nutrient solution once every 3 days after the beginning of autumn, and then change to once every 5 days after budding. If it rains, apply the nutrient solution promptly. Since the substrate is soft, the seedlings are prone to lodging, so it is necessary to spray 800 to 1000 times B9 solution on the leaf surface 2 to 3 times in the early stage, when the seedlings are 10 to 15 cm tall, to prevent excessive growth.
Hydroponic chrysanthemums can save water and nutrients, reduce labor and time, with low labor intensity, clean and hygienic conditions, fewer diseases and pests, and not limited by region, effectively preventing natural disasters.
The above details on how to care for hydroponic chrysanthemums are for everyone's reference and operation.