Can compound fertilizers water flowers in summer?
The sun is scorching in summer, and how to correctly use compound fertilizers to water flowers has become the focus of attention of many gardening enthusiasts. Reasonable application of compound fertilizers can not only promote plant growth, but also avoid the risk of fertilizer damage caused by high temperatures. This article will provide an in-depth analysis of the correct use of compound fertilizers in summer to water flowers, and help you create a vibrant summer garden. Core principles for compound fertilizer application in summer judge plant growth status Before applying compound fertilizers in summer, the plant growth stage needs to be observed: roses, jasmine, etc. that are in the vigorous growth period can be normally fertilized; while dormant plants such as succulent and cyclamen should completely stop fertilization. It is recommended that dormant plants usually show dull leaves and stagnant growth, judging by leaf glossiness and new bud germination. Selecting the ratio of nitrogen, phosphorus and potassium, flowering plants should use high-phosphorus and potassium compound fertilizers (such as 15-30-15) to promote flower bud differentiation; balanced (20-20-20) or high-nitrogen fertilizers should be used for leaf-viewing plants. Pay special attention to multi-flowering plants such as bougainvillea, which need to be supplemented with phosphorus and potassium fertilizers in time after flowering. Scientific deployment and application skills Safe concentration deployment The granular compound fertilizer is dissolved in water at a ratio of 1:1000, and can be diluted to 1:1500 in high temperature seasons. It is recommended to use warm water at 30℃ to accelerate dissolution, let it stand for 2 hours, and then take the clear solution and apply it. Undissolved particles can cause root burns and require strict filtration. The precise application method adopts the annular ditch application method: dig a shallow ditch 15cm away from the main stem, slowly irrigate the fertilizer solution, and then cover it with soil. Potted plants can be poured slowly along the edge of the pot to avoid direct contact with the roots. It is recommended to combine foliar spraying with shallow roots such as green radish (concentration 1:2000). Special precautions for high temperature seasons The best application time is 2 hours after sunset (18:00-19:30), when the temperature drops and transpiration weakens. Avoid applying it before and after rainfall to prevent loss of fertilizer efficiency. It is recommended to cooperate with the three-step method of "fertilization, watering and loosening the soil": irrigate thoroughly the next morning after fertilization, and shallowly loosen the topsoil three days later. When handling abnormal situations, the scorched edge of the blade was found to be immediately stopped fertilizing, and the basin soil was washed 3-5 times with clean water. Severe fertilizer damage requires replacing 1/2 of the plant material and repairing it with brassinolide (0.01mg/L). After sleeping plants are mistakenly fertilized, they can be irrigated with carbendazim solution (1:800) to prevent root rot.
The application of compound fertilizers in summer needs to follow the "three-look principles": fertilizer according to the weather to avoid high temperatures, fertilizer according to the soil to adjust concentration, and fertilizer selection ratio according to the flowers. Mastering the three major essentials of applying thin fertilizer frequently (2-3 times a month), accurate ratio, and wrong timing application can not only meet plant growth needs, but also avoid the risk of high temperature fertilizer damage, so that your garden can still bloom in midsummer. Color.