Preparation of pubaohua seeds before sowing

The medium is suitable for the culture soil mixed with rotten leaf soil and fine sand soil, with a mixing ratio of about 4:1. After fine screening, it is put into a shallow seeding box. First put carbon slag or coarse sand at the bottom of the box, about 2cm thick, then put about 2cm thick coarse slag, and finally lay fine soil on the upper layer, about 2-3cm thick. After leveling, disinfect the soil. Pour 800 times of 50% phoxim emulsion and 1000 times of 50% carbendazim wettable powder into the soil. Or stir fry the culture soil and coarse sand respectively for disinfection

Sowing method of cattail flower

After disinfection, rinse off the residual liquid medicine with clean water and pour in 0.1% potassium dihydrogen phosphate solution. Sowing generally adopts the sowing method. Because the seeds of pubaohua are very small, it is not suitable to sow too closely, otherwise it will be unfavorable for seedling emergence and growth. After seed dressing with a small amount of fine soil or sand, evenly sprinkle it into the sowing box. Pay attention to that the soil cover should not be too thick, and it is OK not to cover the soil. After sowing, cover with glass or cover with a layer of film to moisturize, and put the sowing box in a well ventilated shade. When the seedlings grow 2-3 leaves, they can be transplanted. At the same time, they can be placed in the shade to slow the seedlings, and they can grow normally in about a week

Precautions after planting pubaohua

Ventilation and shading shall be done well during growth. In winter, we should also pay attention to avoid sunburn. We can spray a small amount of water on the leaf surface every day. Generally, rotten fertilizer can be applied 1-2 times a week before flowering and during growth period. More phosphate fertilizer can be applied when flower buds are formed. In case of leaf shrinkage or leaf stem overgrowth, fertilizer should be stopped immediately. When the leaves turn yellow, potassium dihydrogen phosphate can be applied. Be careful not to sprinkle liquid fertilizer on the leaf surface to avoid burning the young leaves. In full bloom period, the water should be strictly controlled, and the basin soil should not be too wet. When the flower stems are extracted, they are often vulnerable to aphids. At this time, 40% 1500 times dimethoate emulsion can be sprayed for control< span>