Use cuttings to raise seedlings. In mid-June, choose a suitable plant type, suitable for commercial Chrysanthemum species, with its winter or spring planting seedlings as mother plants, cut the upper part of its full, pest-free cuttings for the top. The cuttings are 5-7 cm in length. After removal, the base leaves are removed and 2-3 leaflets are retained. The incisions are horseshoe-shaped. The seedlings are treated with vermiculite as the substrate. The 50% carbendazim WP is used to disinfect the skin first. The cutting depth is about 2 cm, and the row spacing is about 3 cm. After being inserted, it is sprayed with clear water, and the inserting pot (or box) is placed in a semi-subterranean seedbed, covered with a plastic film and a draperie curtain. 3 to 5 days after the cutting water spray once, about 20 days can be transplanted.
The inorganic nutrient elements 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%, zinc acetate 0.067%.
The ratio of total weight of inorganic elements to water is 1:500 in the previous period (mid-July to early August), 1:300 times in the middle period (mid-August to mid-September), and later (from late September to mid-October). ) is 1:400, PH is 5 to 5.5. In early July, the complete rooted seedlings of Chrysanthemum were transplanted in a new pot with an internal diameter of 20 cm and a depth of 14 cm. The substrate was covered with vermiculite and the drainage holes in the basin were covered with tiles.
After being planted, the water can be sprayed with a watering can, and the upper part is covered with a plastic film to prevent rain, and the cover curtain is shaded. After 7-10 days, remove the plastic film and draperies (before the heavy rain in mid-August, cover the plastic film again) and start pouring the nutrient solution. Once every 5 days, spray water to prevent nutrient solution after each application. Stay on the blade to cause damage.
3 days after the beginning of autumn, apply a nutrient solution, and then change the buds to another 5 days. In case of rain, supplement the nutrient solution in time. As the matrix is ​​soft, the juveniles are easy to fall down, so it is necessary to spray 800-1000 times B9 solution 2-3 times in the early stage and when the seedling height is 10-15 cm, to prevent leggy.
Soilless cultivation of chrysanthemums, from the cuttings to the beginning of flower color transmission, takes only 110-130 days, and chrysanthemums grow strong and have high ornamental value. Moreover, compared with the soil, the labor intensity is low, and it is cleaner and healthier.
Abs First Aid Bag,Abs First-Aid Devices Box Bag,Plastic First Aid Box,Medical Mini Abs First-Aid Kit
Shaoxing Weijian Medical Supplies Co.,Ltd. , https://www.wetourmedical.com