Breeding method of Portulaca macroflora
Portulaca macroflora is favored by horticulture enthusiasts for its dazzling flowers and tenacious vitality. This perennial herb native to Brazil not only has ornamental value, but also has medicinal and edible functions. If you want it to continue to bloom on your balcony or garden, you need to master scientific and reasonable maintenance methods. The three elements of environmental control, temperature, light, water, and gold ratio, temperature control is the key to maintenance: maintain a growth range of 20 - 30 ℃, and insulation measures need to be taken in winter. Light management directly affects the quality of flowering, and 6 hours of direct light need to be guaranteed every day. The amount of watering follows the principle of "seeing dry, seeing wet". It is watered once in the morning and evening in summer, and changed to noon in winter. The nutrient replenishment plan adopts the strategy of "thin fertilizer and diligent application", and compound liquid fertilizer diluted 2000 times is applied every 15 days during the growth period. Increase the application of phosphorus and potassium fertilizers during the bud appearing period, and 0.2% potassium dihydrogen phosphate can be sprayed foliar to promote flower bud differentiation. Breeding and cultivation double skills sowing and seedling raising key points
Spring sowing is selected from March to May, and plug seedling cultivation method is adopted. Mix seeds and fine sand at a ratio of 1:5 and sow, keeping the substrate moist. Gradually increase the light intensity after emergence, and transplant the seedlings when they grow to 5 cm. Operation specifications for basin replacement replace basin soil every 2 years, using a substrate with peat: perlite: vermiculite = 3:1:1. Stop watering 3 days before changing pots and keep 1/3 of the raw soil for root protection. After changing pots, place them in a scattered light environment to slow down the seedlings for 7 days. Disease Prevention and Control Strategies Disease Early Warning System (T-J) Diseases occur most frequently in the plum rainy season. When brown spots appear on the leaves in the early stages, the diseased leaves should be cut off immediately. The prevention and control of powdery mildew requires maintaining environmental ventilation and regular spraying of mancozeb for prevention. Root irrigation with carbendazim every month can effectively prevent root rot. Pest response plan