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High-yielding, high-quality cultivation of gerbera
Gerbera, also known as gerberas, is a perennial herbaceous flower with rich flower color and a long flowering period. As the gerbera has strict requirements for the growth environment, it is necessary to achieve a good level of cultivation in order to achieve high yield and quality. First, the substrate disinfection off 40-50 cm deep, per acre Shi organic fertilizer rot 4000-5000 kg, and then with 30 times the industrial formaldehyde pouring water, and then covered with plastic film to remove the film after 15 days, until the smell of formaldehyde scattered Colonize as soon as possible. Second, the establishment of the use of gerbera tissue culture seedlings planted in April-May or October, planting pod width 90 cm, height 30 cm, groove width 40 cm, planting depth to the root of the plant exposed substrate surface 1-2 cm It is advisable to plant a row of 30 cm and 45 cm in diameter and 3,000 plants per acre. Third, water and fertilizer management 1, watering. The root of gerbera is a fleshy root with a large amount of water content. In addition to pouring water once after planting, the micro-tide of soil can be maintained. The best conditions for drip irrigation. 2, top dressing. In addition to replenishing the appropriate amount of organic fertilizer, gerbera should also pay attention to the application of potash fertilizer, and its ratio of nitrogen, phosphorus and potassium is 3.5:1:4.5. Can be combined with pest control and watering, with a concentration of 0.1-0.2% potassium Bao spraying or rooting. Fourth, prevention and control of pests and diseases 1. Disease prevention and control. Gerbera has many diseases, such as stem rot, gray mold, blight, etc., but stem rot is most serious. The production is supplemented by manual control and drug control. Drug control: alternating use of thiophanate-methyl, mancozeb, carbendazim and other fungicides, spraying once every 7-10 days, continuous spraying 3-4 times. Artificial control: Spread 1 cm thick calcined fine coal cinder on the surface of the substrate, which can not only spread germs in the matrix, but also keep the matrix loose and permeable. After picking the flowers and picking the leaves, apply a brush to the plant's wound surface with a brush and apply it to the wound surface to promote wound healing. For plants that already have stem rot, remove them promptly and sterilize the substrate. 2, pest control. Gills and spider mites are the main pests that harm the gerbera. They can be sprayed with 20% triclosan EC 1000 times or 20% broom WP 3000 times, sprayed every 7-10 days, and even sprayed 3-5 times. Times.
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