First, cause the cause of seedlings Mainly due to lack of light and high temperature, especially at night when the temperature is too high, more likely to occur when breathing is excessive. In addition, nitrogen fertilizer and excessive water, sowing too dense, not timely transfer seedlings, etc., can easily lead to seedlings leggy. Appearances may occur during summer vegetable nursery, but there are different reasons for leggy at each stage: 1. The most likely cause of leggy and causing serious damage is the period from emergence to cotyledon development. The legislators at this time were mainly due to over-seeding. They did not promptly remove the cover after emergence, making the seedlings too crowded. 2, after the emergence did not cool down in time, it is also easy to make the seedlings of the hypocotyl elongation, there are leggy. 3, cotyledons to expand to 2 to 3 leaf stage, less than the time of seedlings, or due to high temperature but did not promptly leave the plant (moving seedlings into the cockroaches), so that the seedlings are overcrowded and appear to be leggy. 4. After planting the seedlings to the planting time, due to continuous rain, the humidity of the soil and air in the seedbed is too high, and nitrogen fertilizer is too much on the nutrient soil. In addition, the management will not be able to promptly ventilate and transmit light and dilute crowded seedlings. . Second, the main method to prevent seedling leggy 1, sowing density should not be too large, so as not to seedling crowded after emergence. Such as Solanaceae vegetables generally 667 square meters Daejee need to sow the bed 2 to 3 square meters, broadcast 15 ~ 25g seeds. At the same time, ground cover was removed in time after about 30% emergence. 2, and time seedlings, planting and colonization. Seedlings after emergence should be time and seedlings, generally should be 2 to 3 times between seedlings; in the seedlings, "two leaves and one heart" should be carried out when the planting, the density of the implants is controlled at 120 to 130 / square meter. 3, to enhance ventilation and light, control of temperature and humidity. After exhumation of the seedlings and before planting, after transplanting the seedlings and after planting, the ventilation and transparence should be carried out, the temperature and humidity should be reduced, and the cold exercise should be strengthened to control the overgrowth of the seedlings. 4, a reasonable fertilizer and water management. In the preparation of nutritious soil, attention should be paid to the amount of phosphorus and potash fertilizer and the amount of nitrogen fertilizer should be controlled. Strict control of moisture and topdressing in the seedbed requires topdressing nitrogen fertilizer when dressing is required. 5, timely sparse seedlings. About 20 days before the planting of eggplant and melon, the over-crowding of the seedlings often occurs. At this time, the seedlings should be properly moved to separate the seedlings and the survival space of the individual plants. 6, drug control apprentice. In addition to the above-mentioned measures, the seedlings can be sprayed with 0.2% Bordeaux (equal) spray or with 50% Chlormequat 2000 to 2500 times.
Product Dimesnion: 5.7" x 3.7" /14.5cmx9.5cm
Mask Fabric Material: 3-ply material,100% polypropelyne
Ear Loop Material: 70% polyamide, 30% elastane
when to use: suitable for kids to use daily in a variety of settings such as home, outdoors and school
packaging: 10 pcs of mask in one sealed printed plastic bag to ensure hygiene or 50ps per box
certification/standard: GB/T 38880-2020(China children disposable mask standard) and FDA registered
about the manufacturer: Kapanou is china-based healthcare company
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