Fertilizer is the source of flower nourishment. The rationality of fertilization directly affects the growth and development of flowers, and relates to the yield and quality of flowers. Plant growth and development require more elements, the main components of nitrogen, phosphorus, potassium "three elements", followed by calcium, iron, sulfur, magnesium, boron, manganese, copper, zinc, cobalt, carbon, hydrogen, oxygen, which Carbon, hydrogen and oxygen can be obtained from water and air, and the remaining elements need to be absorbed from the soil. Nitrogen, phosphorus, and potassium are not sufficient because of the supply of culture soil. Therefore, it is necessary to supplement them with fertilization. Fertilizer types Fertilizers are generally divided into organic fertilizers and inorganic fertilizers. Organic manure mainly consists of manure, animal manure, and various types of cakes, such as bean cakes, hemp sauce, cottonseed cakes, etc. They are rich in nitrogen, phosphorus, potassium, and trace elements. Nitrogen fertilizer has the effect of promoting the lush foliage of flowers; phosphate fertilizer mainly comes from bone powder, which has the effect of promoting the bright color of flowers and fruit hypertrophy. Potash fertilizer is a fertilizer mainly composed of grass and wood ash, which has the effect of promoting the robustness of flower branches and roots. The application of organic fertilizer must be fermented, and the raw fertilizer can easily damage the roots of the flowers. Inorganic Fertilizer (commonly referred to as "fertilizer") This fertilizer has high nutrient content, single element, fast fertilizer effect, clean sanitation, and convenient application. However, long-term use of chemical fertilizers can easily lead to soil compaction, and it is better to use it in combination with organic fertilizer. Inorganic fertilizers are divided into nitrogen fertilizers (such as urea, ammonium carbonate, ammonium bicarbonate, ammonia, ammonium chloride, calcium nitrate, etc.) and phosphate fertilizers (such as superphosphate, calcium magnesium phosphate, which are mostly used as base fertilizer additives, and their fertilizer efficiency is relatively slow; Potassium and ammonium phosphates are high-concentration fast-acting fertilizers, and nitrogen and potassium fertilizers can be used as topdressing) and potash fertilizers (mainly potassium chloride, potassium sulfate, potassium dihydrogen phosphate, potassium nitrate, etc., which are all available fertilizers. Top dressing application). The use of fertilizer must be appropriate, the concentration should be controlled at 0.1% -0.3%, not too strong, otherwise it is easy to damage the flower seedlings. Second, the application of chemical fertilizer should be immediately watered. Application method Fertilization is divided into two categories: base fertilizer and top dressing. Basal fertilizer refers to the fertilizer applied to the soil before planting flower seedlings. The flowers are planted in open field. The basal fertilizer is first mixed in the soil, and then the soil is replanted; the potted flowers in the house can be placed in the bottom of pottery, such as bean cake and fish bone meal. Wait. Top dressing refers to the top-dressing fertilizer in the flowering season. In open field flowers, dry fertilizers can be applied around flower seedlings, and then watered, or they can be directly shed. Potted flowers can be sprinkled on the surface of potted soil. Then loosen the soil and water. Fertilizer can be divided into fertilizer and water (using soy cake, hemp sauce or horseshoe, croissants and other soaking liquids, applied after fermentation. Fertilizer water is suitable for flowerbeds or large potted flowers placed in the open air), and fertilizer water (adding 0.1% to soaked fertilizer water). The ferrous sulfate, this fertilizer is suitable for the southern strong acid soil flowers, such as camellia, azaleas, gardenia, mimosa, Milan, jasmine, etc.), fertilizer tablets (refers to the use of chemical fertilizers made of solid fertilizer). The top-dressing fertilizer (refers to the spraying of potassium dihydrogen phosphate solution on the flower seedlings, with a concentration of 0.1%, can make the seedlings have a dark green color and a glossy leaf, and can also prevent flowers from falling and fruit drop). The principle of application must be timely and appropriate, while also mastering the season and time. In general, fertilization is applied in the growing season of flowers, especially when the leaves are yellowish. When the plants are thin, they are best fertilized; In the flower and fruit period, phosphorus fertilizer was the main type, and flowers that were in dormancy stopped fertilizing. The foliage flower is dominated by nitrogen fertilizer. In addition, we must also grasp the principle of "bare and hardworking", that is, "eat less meals and more meals." In the growth stage of flower seedlings, it is best to apply a thin fertilizer for about 10 days. The best fertilization effect is in the evening and avoid fertilization before and after noon, because the soil temperature is high and it is easy to injure the roots.
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