The plant ash is the ash fertilizer formed after the firewood is burned, and it is a hot, quick-effect fertilizer with loose texture. In addition to containing available potassium (5%-15%), it also contains effective nutrients such as phosphorus, calcium, iron, magnesium, and sulfur. Potassium promotes nitrogen metabolism and sugar synthesis and transportation in plants, which can promote robust plant growth, enhance its ability to resist pests and natural disasters, and also have the effect of improving plant drought resistance. Plant ash has a wide range of uses in fruit and tree production. Promote seed germination. After sowing the forest seed, planting 0.5-1 cm with vegetation gray can increase the soil temperature, maintain the loose ventilation state, promote the seeds to germinate in advance, and the grown seedlings are neat and robust, and the seedling rate is high. Promote rooting. In the transplanting of seedlings, the combination of plant ash and organic fertilizer as base fertilizer, or 5%-20% of plant ash in the preparation of nutritious soil, can not only increase the effective nutrient of base fertilizer and nutrient soil, but also promote the growth of roots, and reduce pests and diseases. effect. Prevent falling leaves. Spray 10% of ash leaching liquid (10 kg of fresh grass ash to 100 kg of clean water, stir well, filter after standing for 14-16 hours, and spray after clarification). It can increase the vitality of leaves and prevent early defoliation. Photosynthesis promotes beautiful flowers and fruits. Improve quality. In addition to a large number of nutrients such as potassium and calcium, the plant ash also contains many trace elements such as iron and magnesium, and has a fast-acting effect. It is a high-quality foliar fertilizer. Before and after flowering, spraying 50%-80% ash leaching liquid on the leaves can promote greening of branches and leaves, enhance photosynthesis, reduce flower and fruit shedding, promote flower and fruit coloration, extend the viewing period, and improve fruit quality. Suppression of pests and diseases. 30-50 kilograms of plant ash are applied to the nursery per acre, which can kill underground pests and pathogens, protect seeds, roots and stems, reduce pests and diseases, and prevent the emergence of blight and anthrax. Orchard uses grass ash to control the occurrence of powdery mildew and fruit rust. Each plant has 2.5-5 kg ​​of grass ash and has the effect of controlling root rot. Spraying 2%-3% of ash leaching liquid can prevent and cure pests such as aphids and red spiders on flowers and fruits, and improve the anti-drug efficacy of pear hibiscus. Improve the drought resistance of fruit trees. For dryland fruit trees with poor irrigation conditions, spray 2-3 times of 5%-6% ash leaching solution, which can improve the drought resistance of fruit trees. Because the plant ash contains a large amount of potassium ions, it can effectively reduce the intensity of transpiration water in the leaves of fruit trees, enhance the ability of the tree to resist drought and high temperature, promote the operation of carbohydrates, and increase the resistance to diseases and insects of trees. It should be noted that the plant ash is alkaline, can not be mixed with acidic fertilizers, pesticides, foliar spray leaching of plant ash, to be clarified after filtration to prevent pollution of leaves, flowers, fruits.
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