Seven attentions to help you improve the survival rate of dancing grass seed sowing

Sowing dance grass with dance grass seeds is one of the main ways to reproduce dance grass, and in order for the seeds to germinate successfully and cultivate healthy plants, efforts need to be made in daily maintenance. Let's learn how to improve the success rate of sowing dance grass through seven aspects.

Pay attention to the seeds: the seeds of dancing grass are hard and have a bright waxy appearance, and it takes several months to emerge under natural conditions. Therefore, before sowing, dance grass seeds need to gently rub the wax on the seed surface with sun-heated or stir-fried dry sand, so that the seed coat is slightly worn out, then soak the seeds in warm water of 38 ℃ for more than 24 hours (during which water can be changed several times), then wrap the seeds in a warm and moisturizing place, wait for the seeds to swell and dry slightly, and then sow the seeds.

Pay attention to raising seedlings: according to the number of seeds, you can choose seedling bed sowing or pot sowing. The soil quality of the seedling bed should be loose and diuresis, and the soil above the seedling bed had better be screened and disinfected. The simple method of disinfection is exposure, fumigation, high temperature treatment for half an hour, or sprayed with 1000 times potassium permanganate solution, sealed with film for 24 hours, and stored for a few days after disinfection. Spray enough water on the seedling bed before sowing, after underwater infiltration, sow the seeds, then cover 1-2 meters of fine soil, finally spray water to moisten the bed, and arch to build a film, if the temperature is suitable (about 15 days after about 15 days). At this time, the film should be removed according to the local temperature. Sowing after May, do not cover the film, so as not to burn the buds.

Attention to transplant: when the height of the seedling is about 15 cm, it can be transplanted. The row spacing of the plant is about 70 cm. The pot plant (16-26 cm diameter pot) is one plant per pot, and the larger pot can plant 2-3 plants. The soil used is neutral, sour and dilute, and it is required to be loose, fertile and watery.

Pay attention to light and temperature: when the first pair of leaves of dancing grass seeds are symmetrically unfolded, remove the cover in time and place it in the sun, but avoid direct sunlight. When the first pair of cotyledons of dancing grass is fully expanded and green, it is necessary to gradually increase the light time in direct sunlight. The flowering of dancing grass is very sensitive to low temperature. the flower branches can grow and blossom only when the temperature is more than 20 ℃ in the day and not less than 10 ℃ at night, otherwise, the flower branches that have been extracted can not blossom or blossom unsatisfactorily at low temperature, or even yellowing and withering. Dance grass that blossoms in autumn and winter should do a good job of heat preservation.

Pay attention to fertilization: when the dancing grass grows for more than a month, the first fertilization should be carried out, and the growth is slow in the seedling stage. It can be irrigated 1-2 times with dilute human urine feces or 0.1% urea solution. After pouring, then use a fine spray can to spray water to wash off the foliar fertilizer liquid, so as not to burn the young leaves. When the plant grows to 2-3 months, when it comes to the flowering stage of the dance grass, the second fertilization is needed.

Pay attention to moisture: during budding, you need to keep the culture medium moist. After sprouting, it is better to keep dry and dry with the surface culture medium, but the interior is still moist; watering time is as far as possible in the morning, avoid the sun, the water had better be placed for 4-6 minutes, disperse the chlorine in the tap water, it is best to use a thin-eyed kettle when watering, gradually move closer to the plant from the place away from the plant, pour more around, less near the plant, and try not to splash on the leaves and stems.

Pay attention to diseases and insect pests: the main diseases are powdery mildew, anthrax, leaf spot, root rot and blight. When the disease occurs, the diseased leaves should be cut off and burned in time. Spraying 50% carbendazim wettable powder 500 times or topirazine wettable powder 500 times, once every 10-14 days; in addition, spraying Bordeaux solution (1-1-100) or carbendazim and Bordeaux solution alternately for 3-4 times has a better effect on leaf spot. The main pests are ground tiger, powder medium, thrips, mites, armyworm and so on.

Finally, I would like to say that in addition to choosing to treat the seeds, we can also choose the tender seeds as sowing seeds. The so-called tender seeds are medium well's seeds, because the appearance of such seeds has not yet formed too much wax, so sometimes they can emerge quickly without soaking.