Water fertilizer for preventing bending phenomenon of cut-flower roses as well as preparation method and application of water fertilizer
By preparing a water-fertilizer containing specific elements and combining it with drip irrigation and foliar spraying, the problem of "bent head phenomenon" in soilless cultivation of cut roses has been solved, achieving efficient and low-cost quality improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FLOWER RES INST OF YUNNAN ACAD OF AGRI SCI
- Filing Date
- 2026-03-09
- Publication Date
- 2026-05-01
AI Technical Summary
The incidence of "bending head phenomenon" in cut roses due to inaccurate water and fertilizer management in hydroponics is high, causing significant economic losses to the industry. Existing plant hormone treatment methods are costly and not convenient for large-scale application.
A water-based fertilizer containing elements such as potassium nitrate, potassium dihydrogen phosphate, calcium nitrate tetrahydrate, ammonium dihydrogen phosphate, calcium sulfate, magnesium sulfate heptahydrate, chelated zinc, borax, sodium bicarbonate, chelated iron, chelated manganese, chelated copper, and sodium molybdate dihydrate is used to regulate the growth and development of cut roses through drip irrigation and foliar spraying.
It significantly reduced the incidence of "bending" in cut roses, improved the quality of cut roses, reduced production costs, and ensured normal growth and development, making it suitable for hydroponics.
Smart Images
Figure CN121949015A_ABST
Abstract
Description
A water-fertilizer for preventing "bending" in cut roses, its preparation method and application Technical Field
[0001] This invention relates to the field of fertilizer technology, specifically to a water-soluble fertilizer for preventing the "bending phenomenon" in cut roses, its preparation method, and its application. Background Technology
[0002] The rose (Rosa hybrida), belonging to the genus Rosa in the family Rosaceae, is one of the most important woody flowering plants worldwide, characterized by its year-round blooming, rich color palette, and diverse varieties. As one of the world's four major cut flowers, the cut rose holds a pivotal position in the fresh-cut flower market, wielding significant industry influence. Therefore, achieving high-quality and high-volume production has become a key objective for the development of the cut rose industry.
[0003] In hydroponics production of cut roses, improper water and fertilizer management is a key cause of the "bent-head phenomenon." "Bent-head flowers" refer to flowers where the pedicel below the receptacle bends and swells, and the sepals are abnormally positioned. The flower head cannot grow upright like a normal flower head, instead bending significantly to one side, and cannot return to normal later. If these "bent-head flowers" are not addressed promptly, the cut flowers will completely lose their commercial value and become unsellable. Statistics show that the average incidence of "bent-head flowers" in major commercially cultivated cut rose varieties (such as 'Pink Snow Mountain,' 'Freud,' 'Lychee,' and 'Roselle') is over 40%, causing direct economic losses of tens of millions of yuan to flower companies and growers, becoming a key bottleneck restricting the industry's quality and efficiency improvement. Currently, some preliminary studies indicate that plant hormones can improve "bent-head flowers" to some extent, but this method is extremely cumbersome, requiring individual treatment of each "bent-head flower," significantly increasing labor costs. Therefore, systematically exploring water and fertilizer management measures and control methods that can effectively prevent the "bending phenomenon" in cut roses is not only of great significance for improving the quality of cut roses, but also an urgent need to promote the sustainable and high-quality development of the industry. Summary of the Invention
[0004] The purpose of this invention is to propose a water-fertilizer solution for preventing the "bending head phenomenon" in cut roses, along with its preparation method and application. Using macro-, meso-, and micronutrient fertilizers as the main raw materials, the preparation method is simple, fast-acting, low-cost, and environmentally friendly. By ensuring a normal supply of water and fertilizer, the growth and development process of cut roses is precisely regulated. This significantly reduces the incidence of the "bending head phenomenon" in cut roses, effectively improving their quality and promoting industrial upgrading and efficiency.
[0005] The technical solution of this invention is implemented as follows: This invention provides a water-based fertilizer to prevent the "bending phenomenon" of cut roses, comprising the following components: potassium nitrate, potassium dihydrogen phosphate, calcium nitrate tetrahydrate, ammonium dihydrogen phosphate, calcium sulfate, magnesium sulfate heptahydrate, chelated zinc, borax, sodium bicarbonate, chelated iron, chelated manganese, chelated copper, and sodium molybdate dihydrate.
[0006] As a further improvement of the present invention, the concentration of nitrogen in the water-fertilizer is 3.00-8.00 mmol / L, the concentration of potassium is 3.00-4.50 mmol / L, the concentration of calcium is 4.20-6.30 mmol / L, the concentration of magnesium is 0.25-0.375 mmol / L, the concentration of zinc is 1.50-2.25 μmol / L, and the concentration of boron is 15.00-22.50 μmol / L.
[0007] As a further improvement of the present invention, the water-fertilizer contains nitrogen at a concentration of 5.00 mmol / L, potassium at a concentration of 4.125 mmol / L, calcium at a concentration of 5.775 mmol / L, magnesium at a concentration of 0.3437 mmol / L, zinc at a concentration of 2.0625 μmol / L, and boron at a concentration of 20.625 μmol / L.
[0008] This invention further protects a method for preparing the above-mentioned water-soluble fertilizer for preventing the "bending phenomenon" of cut roses. The components are mixed evenly in proportion, added to water, and adjusted to a suitable concentration to obtain the water-soluble fertilizer for preventing the "bending phenomenon" of cut roses.
[0009] This invention further protects a method for using water and fertilizer to prevent the "bending phenomenon" in cut roses, wherein water and fertilizer are applied during the production process of cut roses to prevent the "bending phenomenon" in cut roses.
[0010] As a further improvement of the present invention, the application period includes two stages: the first stage is the application of water and fertilizer through drip irrigation during the vegetative growth stage of cut roses; the second stage is the application of foliar fertilizer during the rapid growth stage when the diameter of the flower buds reaches 0.3-0.8 cm after the cut roses have topped their seeds.
[0011] As a further improvement of the present invention, when the first batch of cut flower mother branches reach the harvesting stage, flower branches with a thickness of 0.8 cm or more are selected for pruning and harvesting.
[0012] As a further improvement of the present invention, water and fertilizer are applied to prevent the "bending phenomenon" of cut roses after the previous batch of roses are harvested.
[0013] This invention further protects the application of the above-mentioned water-fertilizer for preventing "bending" in cut roses.
[0014] This invention offers the following advantages: By combining drip irrigation and foliar fertilization throughout the growth cycle of hydroponically cultivated cut roses, this invention ensures a balanced and sufficient supply of macro-, meso-, and micronutrients throughout the entire growth stage. Under appropriate concentrations of macro-, meso-, and micronutrient fertilizers, the epidermal tissue of the flower stem grows synchronously during the rapid growth phase of the seed-forming stage, preventing the "bending head phenomenon" caused by uneven water and fertilizer distribution and guaranteeing the normal growth and development of hydroponically cultivated cut roses. The preparation method of this invention is simple, fast-acting, low-cost, and environmentally friendly, effectively preventing the "bending head phenomenon"—a common problem in the cut rose industry. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 shows a schematic diagram of the normal flower stem and the "bending phenomenon" of 'Pink Snow Mountain'; Figure 2 shows the occurrence of the "bending phenomenon" of 'Pink Snow Mountain' after applying the water and fertilizer scheme described in this invention. Detailed Implementation
[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Comparative Example 1: During the growth stage of cut roses, a basic fertilizer solution for hydroponics of cut roses was prepared. The formula included: nitrogen concentration 8.00 mmol / L, phosphorus concentration 1.50 mmol / L, potassium concentration 3.00 mmol / L, calcium concentration 4.20 mmol / L, magnesium concentration 0.25 mmol / L, sulfur concentration 0.35 mmol / L, iron concentration 0.06 mmol / L, manganese concentration 4.50 μmol / L, boron concentration 15.00 μmol / L, zinc concentration 1.50 μmol / L, molybdenum concentration 1.80 μmol / L, and copper concentration 5.00 μmol / L. The pH was controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 1:
[0019] During the growth stage of cut roses, the nitrogen concentration in the above-mentioned basic fertilizer solution is reduced. The formula includes: nitrogen 5.00 mmol / L, phosphorus 1.50 mmol / L, potassium 3.00 mmol / L, calcium 4.20 mmol / L, magnesium 0.25 mmol / L, sulfur 0.35 mmol / L, iron 0.06 mmol / L, manganese 4.50 μmol / L, boron 15.00 μmol / L, zinc 1.50 μmol / L, molybdenum 1.80 μmol / L, and copper 5.00 μmol / L. The pH is controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 2:
[0020] During the growth stage of cut roses, the nitrogen concentration in the above-mentioned basic fertilizer solution is reduced. The formula includes: nitrogen 3.00 mmol / L, phosphorus 1.50 mmol / L, potassium 3.00 mmol / L, calcium 4.20 mmol / L, magnesium 0.25 mmol / L, sulfur 0.35 mmol / L, iron 0.06 mmol / L, manganese 4.50 μmol / L, boron 15.00 μmol / L, zinc 1.50 μmol / L, molybdenum 1.80 μmol / L, and copper 5.00 μmol / L. The pH is controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 3:
[0021] Following the water and fertilizer management method in Example 1 (formulation referenced in Example 1), during the reproductive growth stage of cut roses, foliar fertilizer was applied as a supplement. The formula included: potassium concentration 1.50 mmol / L, calcium concentration 2.10 mmol / L, magnesium concentration 125.00 μmol / L, zinc concentration 0.75 μmol / L, and boron concentration 7.50 μmol / L. The pH was controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 4:
[0022] Following the water and fertilizer management method in Example 1 (formula referenced in Example 1), during the reproductive growth stage of cut roses, foliar fertilizer was applied as a supplement. The formula included: potassium concentration 1.125 mmol / L, calcium concentration 1.575 mmol / L, magnesium concentration 93.75 μmol / L, zinc concentration 0.5625 μmol / L, and boron concentration 5.625 μmol / L. The pH was controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 5:
[0023] Following the water and fertilizer management method in Example 1 (formulation referenced in Example 1), during the reproductive growth stage of cut roses, foliar fertilizer was applied. The formula included: potassium concentration 0.75 mmol / L, calcium concentration 1.05 mmol / L, magnesium concentration 62.50 μmol / L, zinc concentration 0.375 μmol / L, and boron concentration 3.75 μmol / L. The pH was controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 6:
[0024] Following the water and fertilizer management method in Example 2 (formula referenced in Example 2), during the reproductive growth stage of cut roses, foliar fertilizer was applied, with the following formula: potassium concentration 1.50 mmol / L, calcium concentration 2.10 mmol / L, magnesium concentration 125.00 μmol / L, zinc concentration 0.75 μmol / L, and boron concentration 7.50 μmol / L. The pH was controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 7:
[0025] Following the water and fertilizer management method in Example 2 (formula referenced in Example 2), during the reproductive growth stage of cut roses, foliar fertilizer was applied as a supplement. The formula included: potassium concentration 1.125 mmol / L, calcium concentration 1.575 mmol / L, magnesium concentration 93.75 μmol / L, zinc concentration 0.5625 μmol / L, and boron concentration 5.625 μmol / L. The pH was controlled at 5.6-5.8, and the EC at 1.49-1.51. Example 8:
[0026] Following the water and fertilizer management method in Example 2 (formulation as described in Example 2), during the reproductive growth stage of cut roses, foliar fertilizer was applied as a supplement. The formula included: potassium concentration of 0.75 mmol / L, calcium concentration of 1.05 mmol / L, magnesium concentration of 62.50 μmol / L, zinc concentration of 0.375 μmol / L, and boron concentration of 3.75 μmol / L. The pH was controlled at 5.6-5.8, and the EC at 1.49-1.51.
[0027] Test Example 1: The technical solution was applied under the same facility (intelligent multi-span greenhouse, daytime temperature 25-30℃; nighttime temperature 15-20℃), the same soilless cultivation trough (substrate is coconut coir and perlite, 3:1), and the same water and fertilizer application method (fertilizer is fully dissolved in water according to the concentration of each element, fertilization is carried out 8-12 times a day, each time for 90 seconds, and the relative humidity of the soil is maintained at 60%. The number of fertilizations is adjusted according to the weather conditions, and reduced to 3 times in low temperature and rainy weather. Low temperature is defined as nighttime temperature below 14℃ and daytime temperature below 18℃). Routine production management was carried out, and pesticides were applied every 7 days for prevention and control of diseases and pests (red spider mites, aphids, thrips, powdery mildew, gray mold, and downy mildew).
[0028] Experiment: Using the cut rose 'Pink Snow Mountain' from the Baofeng Base of the Flower Research Institute of the Kunming Academy of Agricultural Sciences in Jinning District, Yunnan Province as experimental material, 135 'Pink Snow Mountain' plants of similar size and quality at the apical seed stage exhibiting "bending head phenomenon" were selected and divided into 9 groups of 15 plants each, and marked accordingly. The grouping is shown in Table 1: Control Group 1: The technical scheme prepared according to Comparative Example 1 was used; the application method was the same as that of Test Example 1.
[0029] Treatment Group 1: Select the technical solution prepared in Example 1; Apply the method selected from the method of Test Example 1.
[0030] Treatment Group 2: The technical solution prepared in Example 2 was selected; the application method was selected from the method of Test Example 1.
[0031] Treatment Group 3: The technical solution prepared in Example 3 was selected; the application method was selected from the method of Test Example 1.
[0032] Treatment group 4: Select the technical solution prepared in Example 4; select the method of Test Example 1 for application.
[0033] Treatment group 5: Select the technical solution prepared in Example 5; select the method of Test Example 1 for application.
[0034] Treatment Group 6: Select the technical solution prepared in Example 6; select the method of Test Example 1 for application.
[0035] Treatment group 7: Select the technical solution prepared in Example 7; select the method of Test Example 1 for application.
[0036] Treatment group 8: Select the technical solution prepared in Example 8; select the method of Test Example 1 for application.
[0037] Table 1
[0038] The first application of the above-mentioned groups was on November 8, 2025, under sunny weather conditions. The occurrence of the "bending phenomenon" was statistically analyzed on November 14, 2025. The proportion of the "bending phenomenon" in cut roses of control group 1 and treatment groups 1-8 was statistically analyzed, and the results are shown in Figure 1, Figure 2, and Table 2.
[0039] Table 2
[0040] As shown in Figures 1 and 2, on November 6, 2025, a large number of 'bending head' phenomena appeared in the 'Pink Snow Mountain' rose variety. The first water and fertilizer treatment was adjusted on November 8, 2025. After 5-7 days of continuous application, the following treatment regimen significantly reduced the 'bending head' phenomenon in cut roses: nitrogen concentration 5.00 mmol / L, potassium concentration 4.125 mmol / L, calcium concentration 5.775 mmol / L, magnesium concentration 0.3437 mmol / L, zinc concentration 2.0625 μmol / L, and boron concentration 20.625 μmol / L. Meanwhile, as shown in Table 1, the plants in the treatment group, treated from November 8, 2025, showed a significant reduction in 'bending head' phenomena by November 12-14, 2025; the control group, treated at the same time, still showed a significant amount of 'bending head' phenomena by November 14, 2025.
[0041] As shown in Table 2, the overall probability of "bending head" in rose plants was 27% in treatment group 1; 32% in treatment group 2; 25% in treatment group 3; 12% in treatment group 4; 17% in treatment group 5; 30% in treatment group 6; and 21% in treatment group 7. The overall incidence of "bending head phenomenon" in rose plants in treatment group 8 was 26%, while the overall incidence of "bending head phenomenon" in rose plants in the control group was 45%. Therefore, adjusting the water and fertilizer program is effective in solving the "bending head phenomenon" in cut roses. It can be seen that the water and fertilizer program prepared by this invention for effectively preventing "bending head phenomenon" in cut roses is applied to varieties in cut rose production that are prone to "bending head phenomenon". Only appropriate amounts of macro, medium and micro element fertilizers are needed to effectively solve the industry problem of cut roses being unable to grow and bloom normally due to "bending head phenomenon", which reduces their commercial value.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A water-fertilizer for preventing "bending" in cut roses, characterized in that, It includes the following components: potassium nitrate, potassium dihydrogen phosphate, calcium nitrate tetrahydrate, ammonium dihydrogen phosphate, calcium sulfate, magnesium sulfate heptahydrate, chelated zinc, borax, sodium bicarbonate, chelated iron, chelated manganese, chelated copper, and sodium molybdate dihydrate.
2. The water and fertilizer method for preventing "bending" in cut roses according to claim 1, characterized in that, The water-fertilizer contains nitrogen at a concentration of 3.00-8.00 mmol / L, potassium at a concentration of 3.00-4.50 mmol / L, calcium at a concentration of 4.20-6.30 mmol / L, magnesium at a concentration of 0.25-0.375 mmol / L, zinc at a concentration of 1.50-2.25 μmol / L, and boron at a concentration of 15.00-22.50 μmol / L.
3. The water and fertilizer method for preventing "bending" in cut roses according to claim 2, characterized in that, The water-fertilizer contains nitrogen at a concentration of 5.00 mmol / L, potassium at a concentration of 4.125 mmol / L, calcium at a concentration of 5.775 mmol / L, magnesium at a concentration of 0.3437 mmol / L, zinc at a concentration of 2.0625 μmol / L, and boron at a concentration of 20.625 μmol / L.
4. A method for preparing a water-soluble fertilizer as described in any one of claims 1-3 to prevent "bending" in cut roses, characterized in that, Mix the components evenly according to the proportions, add them to water, and adjust to a suitable concentration to prepare a water-based fertilizer that prevents the "bending phenomenon" of cut roses.
5. A method for applying water and fertilizer as described in any one of claims 1-3 to prevent "bending" in cut roses, characterized in that... Apply water and fertilizer during the production of cut roses to prevent the "bending phenomenon" in cut roses.
6. The method of use according to claim 5, characterized in that, The application period includes two stages: the first stage is the application of water and fertilizer through drip irrigation during the vegetative growth stage of cut roses; the second stage is the application of foliar fertilizer during the rapid growth stage when the flower buds reach a diameter of 0.3-0.8 cm after the cut roses have produced seeds.
7. The method of use according to claim 6, characterized in that, When the first batch of cut flower mother branches reach the harvest stage, select flower branches with a thickness of 0.8 cm or more for pruning and harvesting.
8. The method of use according to claim 7, characterized in that, After the previous batch of roses is harvested, continue to apply water and fertilizer to prevent the "bending phenomenon" of cut roses.
9. The application of a water-fertilizer as described in any one of claims 1-3 for preventing "bending" in cut roses.