What is the best fertilizer for roses
Do you know this? The best fertilizer for roses and the knowledge about the best time for rose fertilization are explained in detail by the editor for you below.
When it comes to edible roses, the first thing that comes to people's minds is flower cakes. That's right, flower cakes are a special product of Yunnan and a local delicacy. Since the main ingredient of flower cakes is edible roses, they are widely cultivated by farmers in Yunnan.
Old farmers who have grown edible roses know that edible roses are crops that like fertilizer and have high demands for it. If the nutrient supply in the soil is insufficient, it will lead to low yield and poor quality of the edible roses. In severe cases, long-term picking can cause the rose plants to wither and die. Therefore, fertilizer is the guarantee for the yield and quality of edible roses.
Generally speaking, the number of fertilization times and fertilization time for edible roses should be judged according to their growth status and harvesting times. Normally, we need to apply six types of fertilizers to edible roses, which are:
1. Base fertilizer
2. Seedling fertilizer
3. Bud-promoting fertilizer
4. Growth-promoting fertilizer
5. Bud-forming fertilizer
6. Post-harvest fertilizer
Base Fertilizer
Edible roses have the characteristic of "being planted once and harvested for many years". Because of this, we need to apply enough base fertilizer to the edible roses to meet their nutrient needs during growth and prevent them from lacking fertilizer. In addition, applying base fertilizer can ensure the fertility of the soil, prevent soil compaction and salinization, and is more conducive to the growth and development of the rose roots.
Since edible roses do not produce buds or bloom in winter, the planting and pruning time (which is done every year) for edible roses is during the cold winter season. Therefore, the time for applying base fertilizer to edible roses is generally before winter planting or after pruning. That is to say, it is necessary to apply base fertilizer to edible roses at least once a year. For the choice of base fertilizer, the best should be decomposed cow and horse manure, for the following reasons:
① Cow and horse manure are rich in nutrients, containing a large amount of organic matter and higher content of the three essential nutrients. Since edible roses require high amounts of organic matter and the three essential nutrients, applying cow and horse manure can effectively prevent roses from lacking fertilizer and nutrients.
② Cow manure decomposes slowly, has low heat, is a cold-type fertilizer, its effect is slow but lasts long; while horse manure is a hot-type fertilizer, its effect is quick, and the combination of both results in moderate efficacy and better results.
③ Cow and horse manure contain a large amount of lignin, which is loose in texture, can enhance the soil's breathability, making the soil loose, preventing soil compaction, and is beneficial to the growth and development of edible rose roots.
Supplementary note: Before applying base fertilizer to edible roses, you can lay a layer of chopped straw at the bottom of the soil, which is commonly known as straw inversion and return to the field. The purpose of this is as follows:
① Chopped straw has strong water absorption capacity, can absorb a lot of water from the soil, and prevent the roots of edible roses from rotting.
② Chopped straw is complete fiber, which can enhance the soil's breathability and is more conducive to the absorption of nutrients by edible roses.
③ Chopped straw will gradually decompose in the soil, and after decomposition, it becomes natural organic fertilizer, which can replenish nutrients for edible roses.
Seedling Fertilizer
Applying seedling fertilizer to edible roses has two purposes: one is to promote the rapid rooting of edible roses, ensure the survival rate of edible roses, and prevent withering and death due to insufficient nutrients after planting and pruning; the other is to enhance the stress resistance of edible roses, preventing frostbite and diseases in newly planted or pruned edible roses.
For the application method of seedling fertilizer, newly planted roses should use the root-dipping method, and recently pruned roses should use the broadcasting method. For the choice of seedling fertilizer, the best should be wood ash, for the following reasons:
① Wood ash is mainly composed of potassium carbonate and calcium carbonate. Sufficient potassium fertilizer not only helps the growth of new roots in edible roses but also enhances their cold and disease resistance.
② Wood ash has the effect of anti-inflammatory and杀菌, which can prevent wound infection in the pruning part of edible roses and promote rapid healing of wounds.
③ Wood ash is weakly alkaline, has the effect of preventing germs and pests, and can prevent the invasion of diseases and pests as well as the occurrence of diseases in edible roses.
Bud-Promoting Fertilizer
Applying bud-promoting fertilizer to edible roses has three purposes: one is to promote the differentiation of flower buds in edible roses, make them grow more flower buds and new branches; the second is to accumulate nutrients for the roots of edible roses, ensure that the roots grow strong, and achieve the purpose of nourishing and protecting the roots; the third is to make the roots of edible roses absorb enough nutrients and be ready to "grow vigorously" in the coming spring.
Generally speaking, the bud-promoting fertilizer for edible roses needs to be applied twice, with the first application about one month after the roses have survived and the second before spring comes and before flower bud differentiation. For the choice of fertilizer, superphosphate (commonly known as calcium superphosphate) is the best, for the following reasons:
① Superphosphate is inexpensive and has a low cost.
② Superphosphate is easily absorbed by the soil and does not cause fertilizer waste.
③ Superphosphate contains a large amount of phosphorus, and high phosphorus fertilizer can play the purposes of nourishing roots, protecting roots, and promoting flower bud differentiation.
④ Superphosphate contains calcium and sulfur elements, which are trace elements required for the growth of edible roses, and they can improve the quality of edible roses.
Supplementary note: Since superphosphate is easily soluble in water, when using superphosphate to top-dress edible roses, it can be mixed with water for irrigation, which will enhance the top-dressing effect.
Growth-Promoting Fertilizer
Applying growth-promoting fertilizer to edible roses has two purposes: one is to promote the growth of stems and leaves of edible roses, ensure that the branches are lush and prepare for more flower buds; the other is to promote the photosynthesis, respiration, and transpiration of edible roses through fertilization, and thereby improve the yield and quality of edible roses, preventing damage to plant organs in the hot summer.
Generally speaking, the timing for applying growth-promoting fertilizer to edible roses needs to be determined according to their growth status. When the plant growth is slow; when the leaves turn yellow and dry; when the plants begin to decline and wither; and when the number of flower buds decreases, we need to apply growth-promoting fertilizer. For the choice of growth-promoting fertilizer, urea is the best, for the following reasons:
① Urea has a high nitrogen content, and edible roses require the highest nitrogen during plant growth, so applying urea can meet the nitrogen fertilizer needs of edible roses.
② Urea has a fast effect and obvious top-dressing effect. It can be quickly absorbed by edible roses after being applied to the soil, and its effect can usually be seen within half a month after fertilization.
③ Urea has weak hygroscopicity, is easy to store, and has a long shelf life without deterioration.
Bud-Forming Fertilizer
Applying bud-forming fertilizer to edible roses has four purposes: one is to promote more flower buds in edible roses, strive for "multiple heads per plant" and prepare for high yield; the second is to promote the growth of flower buds in edible roses and prepare for early harvesting; the third is to promote the expansion of flower buds in edible roses to improve their weight and quality; the fourth is to enhance the resistance to diseases and pests in edible roses, reducing the cost of pesticides while increasing the economic value of roses.
Generally speaking, the timing for applying bud-forming fertilizer to edible roses needs to be determined according to the growth of the flower buds. When the number of flower buds is small; when the growth of flower buds is slow; when the flower buds are weak; and when the number of diseases and pests in flower buds increases, bud-forming fertilizer can be applied. For the application method of bud-forming fertilizer, it is recommended to use foliar spray, so for the choice of bud-forming fertilizer, phosphate potassium fertilizer is the best, for the following reasons:
① Phosphate potassium fertilizer contains a large amount of phosphorus and potassium elements, and edible roses require the highest phosphorus and potassium fertilizers during the bud formation stage, applying phosphate potassium fertilizer can meet the phosphorus and potassium fertilizer needs of edible roses.
② The phosphorus in phosphate potassium fertilizer can promote the differentiation of flower buds and the growth of roots, ensuring that edible roses can continuously harvest and continuously differentiate new flower buds.
③ The potassium in phosphate potassium fertilizer helps the formation, growth, expansion, and maturity of flower buds, which can improve the quality and yield of edible roses.
④ Phosphate potassium fertilizer can enhance the stress resistance of edible roses, preventing lodging, diseases, and pests.
Supplementary note: Since the cost of phosphate potassium fertilizer is high, and long-term use can inhibit the absorption of other mineral elements by edible roses, it is not recommended to use phosphate potassium fertilizer for a long time, and using it 3-5 times a year is sufficient.
Post-Harvest Fertilizer
Applying post-harvest fertilizer to edible roses has three purposes: one is to enhance the stress resistance of the plant, preventing the invasion of diseases and pests; the second is to promote the regeneration of flower buds in edible roses, ensuring the yield; the third is to extend the growth period of edible roses to prevent early senility.
In the midsummer season, due to high temperatures, strong sunlight, and abundant rainfall, edible roses grow rapidly, and almost need to be picked every day. Generally speaking, we need to apply post-harvest fertilizer once after about twenty harvests. For the choice of fertilizer, the 17-17-17三元复合肥 is the best, for the following reasons:
① The three elements in the ternary compound fertilizer are sufficient and balanced, have good top-dressing effect, strong recovery ability, and can better meet the three-element needs of roses.
② The nitrogen element in the ternary compound fertilizer can promote the growth of the plant, allowing edible roses to grow more effective branches.
③ The phosphorus element in the ternary compound fertilizer can promote the accumulation of nutrients in the roots of edible roses, preparing for the next flower bud differentiation.
④ The potassium element in the ternary compound fertilizer can prepare for the next long bud and improve the quality of the flower bud.
Some people may ask, "Will edible roses not suffer from fertilizer damage if so much fertilizer is applied?" In fact, if you want high yield and quality in edible roses, you need to apply more fertilizer. Only by allowing the roots of edible roses to absorb enough nutrients can they be continuously harvested and maximize our profits.
This article shares the detailed content about the best fertilizer for roses and the best time for rose fertilization, hoping to bring you help!