The method of improving the emergence rate of Flower Seeds

In floriculture, sowing some relatively small seeds often has a low emergence rate. In order to solve this problem, the following is a good way to effectively improve the emergence rate of small flower seeds.

Understand the characteristics of seeds. Including the temperature, humidity, light and suitable soil conditions required for seed germination. For example, some flower seeds should be soaked after sowing, some should not be soaked; some seeds like low temperature, some need to be at a higher temperature to emerge; some seeds are light-loving, while some seeds are light-repellent and so on. Like German primrose can not soak seeds, soaking easy to lose vitality. Ranunculus chinensis seeds like low temperature, seedling temperature should be about 8℃, more than 12℃ is difficult to emerge.

Second, select the sowing equipment. Choose a hard plastic nursery box with a length of 50-60 cm, a width of 30-40 cm, a height of 8-10 cm and a lot of small holes at the bottom. You can also use wood to make your own, depending on the size of the seed, but not too high. Too high, such as more soil, long-term waterlogging is not easy to dry; If there is less soil, the walls above the container are shaded. Drain holes should be drilled at the bottom of the wooden box, and must be soaked in water for 2-3 days before use, or the box will be easily separated from the soil.

Third, prepare the matrix. The decomposed and sieved fine manure, humus soil, fine sand and garden soil are sieved with a sieve capable of sifting sorghum rice according to the ratio of 2:1:1, and are sterilized by sunlight for 1 day.

IV. Packing. First spread a layer of 1-2 cm thick soybean-sized cinder at the bottom of the box. Then lay the prepared substrate on top and flatten it to a thickness of 4-5 cm. Then sieve a layer of fine matrix with a sieve surface, about 1 mm, and fill it with soil particles to prevent fine seeds from sinking into the soil and unable to break out of the soil. But fine soil can not be much, otherwise easy to grow moss.

5. Sowing. Mix the seeds and fine sand in a pot at a ratio of 1:1000-2000 and sprinkle evenly on the substrate. Then use a smooth board to gently press on the soil layer, do not compact, so that the seeds can be combined with the soil. Finally, put the wooden box in water, the water level should not exceed the soil surface, and add water with immersion until it is soaked. Take the soaked box out of the water, cover it with glass to keep it moist (do not use plastic film, because it is easy to drip and hurt seedlings), control the water slightly, and immediately move it to an environment suitable for seed germination. After the seeds germinate, remove the glass and move to a suitable place for growth after most of them emerge. Special attention should be paid to the fact that before two true leaves grow, do not water or spray water from above. The others were managed as normal seedlings.