What is the Best Fertilizer for Roses
This article discusses the best fertilizers for roses and the correct methods for rose care, a topic of interest for flower enthusiasts. Please refer to the detailed introduction below.
Roses are flowers that symbolize beautiful love and have been cherished by people throughout history. Roses are plants that thrive on chemical fertilizers, with exceptionally developed roots and rapid growth. To ensure good yield and quality, fertilization is an indispensable task. So, how should we fertilize roses during cultivation?
1. Fertilization Needs
Roses require different types of fertilizers during growth, with nitrogen, phosphorus, and potassium fertilizers being the most important. Nitrogen fertilizer is a crucial nutrient for roses; ample nitrogen allows the plants to grow lush and full. Insufficient nitrogen results in weak growth, yellow leaves, and if excessive, the plants may grow excessively, leading to abnormal rose shapes, severely affecting yield, and causing the flowers to droop. Potassium fertilizer promotes the healthy growth of new shoots and leaves, increases the number of flowers, and can double the yield.
However, the need for these three fertilizers varies at different growth stages. Initially, the ratio of nitrogen, phosphorus, and potassium is 3:1:2, and later it can be adjusted to 3:1:3. In addition to these main elements, roses also need calcium, magnesium, zinc, boron, and other elements, which should be added during fertilization management.
2. Sufficient Basic Fertilization
When planting, it is essential to apply sufficient basic fertilizer to the entire field. The basic fertilizer should primarily be organic, with compound fertilizers as the main component, providing continuous fertility for rose growth and meeting the plant's need for trace elements. Generally, apply 3000-4000 kilograms of fully mature organic fertilizer per mu, along with 30-40 kilograms of slow-release compound fertilizer.
The application time for basic fertilizer is before the leaves fall in autumn, and it should be as early as possible. The usual method is to apply fertilizer in furrows between rows, which allows new roots to emerge faster and promotes more vigorous growth in the following spring. Delayed application of basic fertilizer is not conducive to normal plant growth.
3. Timely Top-dressing
In addition to sufficient basic fertilization, roses have a high demand for nutrients during the growing period, and it is necessary to apply water-soluble, fast-acting fertilizers in a timely manner to supplement the plant's growth.
Usually, top-dressing is done three times a year: the first time is at the germination stage when the temperature rises slightly, and the underground roots begin to grow, reaching the top, requiring a large amount of fertilizer, which should be applied immediately; the second time is during the flowering stage, a critical period for roses that affects yield and flower quality, but the plants may not meet their nutrient requirements and need to be topped up with fast-acting fertilizer; the third time is after flowering when leaf growth has stopped, flowers are mature for picking, and photosynthesis continues, accumulating a large amount of nutrients in the roots. Fertilization at this point should depend on the condition of the plant.
4. Fertilization Formulas
1. Basic fertilizer:
Yi Jun Bao (2-4 bags) + Slow-release formula fertilizer (2 bags) + Silicon Calcium Magnesium (2 bags) per mu.
2. Germination fertilizer:
High-activity bacterial kinase (one bag) + Milk enzyme (one bag) per mu. Foliar spray with Light Carbon Boron + Light Carbon Zinc.
3. Flowering fertilizer:
Five-in-one (one barrel) + 20-10-20 water-soluble fertilizer (one bag) per mu. This can be applied twice. Foliar spray with Light Carbon Calcium + Light Carbon Magnesium.
The above information provides a detailed explanation of the best fertilizers for roses and the correct methods for rose care, for your reference and suggestion!