What fertilizer is applied to roses?
As the queen of flowers, the bloom of rose flowers is inseparable from scientific fertilization. Mastering the correct fertilizer selection and application methods can not only allow the plants to grow vigorously, but also prolong the flowering period and have beautiful colors. This article will systematically analyze the key points of nutritional management of rose flowers from basic fertilizers to advanced skills. Guide for the Selection of Rose Fertilizer, the ratio of basic nutrient elements, nitrogen, phosphorus and potassium, is crucial to the growth of roses: nitrogen promotes the growth of branches and leaves (it is recommended to choose ammonium nitrogen or nitrate nitrogen), phosphorus stimulates flower bud differentiation, and potassium enhances disease resistance. ability. Pay special attention to urea that is easy to cause fertilizer damage and needs to be used with caution. It is recommended to use humus loess for transplanting new plants, mixed with soybean cake (2 kg per cubic meter of soil) and fermented chicken manure (500 g) to form a balanced basic fertility. Organic fertilizer preparation process Self-made organic fertilizer needs to follow a scientific ratio: chicken manure/pigeon manure (3 parts)+ bean dregs (2 parts)+ bone meal (1 part) mixed fermentation. It is recommended to compost from January to February in winter, use EM inoculants to accelerate decomposition, and regularly turn the piles to maintain 60% humidity. The fermented fertilizer should be dark brown and odorless, and should be screened to remove impurities before application. Rose fertilization cycle management, growth stage, fertilization method, growth period (March to June), liquid fertilizer is applied once a week (EC value is controlled at 1.2-1.5mS/cm), and phosphorus and potassium fertilizer are added during the germination period (N-P-K=1:2:2). Switch to a high-phosphorus formula (such as potassium dihydrogen phosphate 1000 times solution) 15 days before bud emergence, combined with foliar spraying of boron fertilizer (0.1% concentration). Before winter dormancy, apply slow-release organic fertilizer (200-300 grams per plant) and bury it in the soil using a circular ditch application method. Yellow-leafed plants under special conditions need to be supplemented with iron chelate fertilizer (once a week for 3 weeks), and microbial bacterial fertilizer is applied to restore soil fertility after the rainy season. It is recommended to use the "sandwich" fertilization method for potted roses: use bone meal (5cm) on the bottom of the basin, mix slow-release fertilizer (Aoulu 318s) in the middle layer, and cover the surface with fermented pine scales. Pay attention to stop applying solid fertilizers in hot seasons and use amino acid water-soluble fertilizers (diluted 2000 times).
Scientific fertilization is the core technology for rose maintenance. Through precise nutritional control, plants can maintain a vigorous state of "having flowers in all seasons." It is recommended to establish a fertilization log to record the type, amount and plant response of each fertilizer, and gradually form a personalized maintenance plan. Only by regularly testing the soil EC value and PH value (ideal range 6.0-6.5) and adjusting the fertilization strategy in a timely manner can the roses bloom in the most moving style.