A method to promote early flowering of mango and its application
By spraying glucose solution on mango trees, combined with ultraviolet light irradiation and water control, and using potassium nitrate and ammonium nitrate compound solution and amino acid trace element water-soluble fertilizer, the mangoes are promoted to bloom earlier, which solves the problem of difficult control of mango flowering time and achieves early fruit ripening and high and stable yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YUNNAN INST OF TROPICAL CROPS
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-26
AI Technical Summary
The timing of mango flowering is difficult to control, resulting in a concentrated fruit supply period that cannot meet consumer demand. High temperatures during the flowering period and drought during the fruit enlargement period also affect yield.
By spraying glucose solution on the autumn shoots of mango trees and combining it with ultraviolet light irradiation, along with controlled watering and spraying with potassium nitrate, ammonium nitrate compound solution and amino acid trace element water-soluble fertilizer, nutrient accumulation is promoted, flower bud differentiation is induced, and flowering is advanced.
To achieve early flowering of mangoes, avoid the peak season for market entry, increase market prices and profit margins, and avoid high temperatures and drought, thus ensuring high and stable yields.
Abstract
Description
Technical Field
[0001] This invention belongs to the field of mango cultivation technology, and in particular relates to a method for promoting early flowering of mangoes and its application. Background Technology
[0002] Mangoes, as an important economic fruit in tropical and subtropical regions, occupy a significant position in the global fruit market due to their rich nutritional value and unique flavor. The flowering time of mangoes not only determines their ripening and market availability, thus becoming a key factor influencing the economic benefits of mango cultivation; furthermore, earlier flowering can avoid the high temperatures during flowering and seasonal droughts during fruit enlargement, helping to increase yield. Currently, the mango fruit supply period is concentrated, making it difficult to control the timing of market availability and meet consumer demand at different times. High temperatures during flowering significantly impact fruit set, and seasonal droughts during fruit enlargement also restrict mango production.
[0003] Therefore, providing a method to promote early flowering of mangoes is not only beneficial for achieving early fruit ripening and market launch, effectively avoiding the concentrated market launch period and obtaining higher market prices and profit margins, but also helps to avoid the high temperatures during the flowering period and the seasonal drought during the fruit expansion period, ensuring high and stable yields in orchards. This is of great significance for enhancing the competitiveness of the mango industry and the income of fruit farmers. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide a method for promoting early flowering of mangoes, which can promote early flowering of mangoes and thus make mangoes ripen earlier, effectively avoiding the concentrated market period of mangoes.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:
[0006] A method for promoting early flowering in mango trees includes the following steps: After the autumn shoots of the mango tree turn dark green, spray the autumn shoots with glucose solution 1, and then conduct the first ultraviolet (UV) irradiation, which lasts for 8-10 days; after the first UV irradiation, conduct the first water control; 25-35 days after the first UV irradiation, spray the autumn shoots with glucose solution 2, and then conduct the second UV irradiation, which lasts for 10-12 days; after the second UV irradiation, conduct the second water control; 6-8 days after the second UV irradiation, simultaneously spray the leaves with a compound solution of potassium nitrate and ammonium nitrate; 2 weeks after the spraying of the compound solution of potassium nitrate and ammonium nitrate, spray the entire tree with a mixture of glucose solution 3, potassium nitrate solution, and amino acid trace element water-soluble fertilizer solution.
[0007] Preferably, bamboo poles are inserted around the mango tree canopy at a distance of 30-50cm from the outer edge of the drip line. The height of the bamboo poles is 30-50cm higher than the canopy. The tops of the bamboo poles are connected to each other with wire, and ultraviolet lamps are hung on the wire connecting the tops of the bamboo poles. The ultraviolet lamps are then turned on for the first or second ultraviolet irradiation.
[0008] Preferably, 4 to 6 ultraviolet lamps are hung on the wire connecting the top of the bamboo pole, and the power of the ultraviolet lamps is 60 to 100W.
[0009] Preferably, the glucose in the glucose solution 1 is 0.25% to 0.40% of the total mass of the solution.
[0010] Preferably, the glucose in the glucose solution 2 is 0.50% to 0.65% of the total mass of the solution.
[0011] Preferably, the potassium nitrate and ammonium nitrate composite solution is obtained by mixing a potassium nitrate solution and an ammonium nitrate solution; the mass of potassium nitrate in the potassium nitrate solution is 1% to 3% of the total mass of the potassium nitrate solution; and the mass of ammonium nitrate in the ammonium nitrate solution is 0.2% to 0.4% of the total mass of the ammonium nitrate solution.
[0012] Preferably, the glucose in the glucose solution 3 is 0.70% to 0.85% of the total mass of the glucose solution 3; the potassium nitrate in the potassium nitrate solution is 1.5% to 2.5% of the total mass of the potassium nitrate solution; and the amino acid trace element water-soluble fertilizer in the amino acid trace element water-soluble fertilizer solution is 0.3% to 0.5% of the total mass of the amino acid trace element water-soluble fertilizer solution.
[0013] Preferably, the water control involves controlling the watering frequency to once every 10 to 14 days, with each water control period lasting for one month.
[0014] Preferably, the mango tree is 6 to 10 years old.
[0015] Another object of the present invention is to provide the application of the method for promoting early flowering of mangoes in mango cultivation.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] This invention provides a method to promote early flowering of mangoes. By supplementing the mango tree with the nutrients needed for growth and combining ultraviolet radiation, this invention promotes the accumulation of nutrients in the autumn shoots, thereby inducing the mango tree to quickly complete flower bud differentiation, flower earlier, and thus promote early ripening of the mangoes. This allows the fruit to ripen and be marketed earlier, effectively avoiding the concentrated market period of mangoes, which is conducive to obtaining higher market prices and profit margins. At the same time, it avoids the high temperatures during the flowering period and the seasonal drought during the fruit expansion period, ensuring high and stable yields in the orchard. This can effectively enhance the competitiveness of the mango industry and the income of fruit farmers. Detailed Implementation
[0018] This invention provides a method for promoting early flowering of mango trees, comprising the following steps: After the autumn shoots of the mango tree turn dark green, spray the autumn shoots with glucose solution 1, and then subject them to the first ultraviolet (UV) irradiation, which lasts for 8-10 days; after the first UV irradiation, perform the first water control; 25-30 days after the first UV irradiation, spray the autumn shoots with glucose solution 2, and then subject them to the second UV irradiation, which lasts for 10-12 days; after the second UV irradiation, perform the second water control; 6-8 days after the second UV irradiation, spray the leaves with a compound solution of potassium nitrate and ammonium nitrate; 2 weeks after spraying the compound solution of potassium nitrate and ammonium nitrate, spray the entire tree with a mixture of glucose solution 3, potassium nitrate solution, and amino acid trace element water-soluble fertilizer solution.
[0019] In the method of the present invention, it is preferably used to promote early flowering of embryoless mangoes; preferably, bamboo poles are inserted around the mango tree canopy at a distance of 30-50 cm from the outer perimeter of the drip line, more preferably at a distance of 35-45 cm from the outer perimeter of the drip line; the height of the bamboo poles is preferably 30-50 cm higher than the canopy, more preferably 40-45 cm higher than the canopy; the tops of the bamboo poles are connected to each other with wire, and ultraviolet lamps are hung on the wires connecting the tops of the bamboo poles, preferably 4-6 ultraviolet lamps, more preferably 5 ultraviolet lamps; the power of the ultraviolet lamps is preferably 60-100W, more preferably 70-80W; after the ultraviolet lamps are turned on, a first ultraviolet lamp irradiation or a second ultraviolet lamp irradiation is performed.
[0020] As one feasible approach, the present invention preferably inserts 4 to 8 bamboo poles, the bamboo poles having a diameter of 3 to 5 cm.
[0021] In the method of this invention, the glucose content in glucose solution 1 is preferably 0.25% to 0.40% of the total solution mass, more preferably 0.3% to 0.35% of the total solution mass. The glucose content in glucose solution 2 is preferably 0.50% to 0.65% of the total solution mass, more preferably 0.55% to 0.60% of the total solution mass. The spraying amount of both glucose solution 1 and glucose solution 2 is such that the autumn shoots are completely moistened but not dripping wet.
[0022] This invention promotes the absorption and accumulation of sugar in mango trees by supplementing them with glucose solution and then irradiating them with ultraviolet lamps. At the same time, the use of potassium nitrate, ammonium nitrate and trace elements of amino acids promotes the accumulation of nutrients in autumn shoots, induces flower bud differentiation, and prompts mango trees to bloom earlier.
[0023] In the method of the present invention, the water control is preferably controlled to water once every 10 to 14 days, more preferably once every 12 to 13 days; each water control period is 1 month.
[0024] In the method of this invention, the potassium nitrate and ammonium nitrate composite solution is obtained by mixing a potassium nitrate solution and an ammonium nitrate solution; the potassium nitrate in the potassium nitrate solution preferably comprises 1% to 3% of the total mass of the potassium nitrate solution, more preferably 1.5% to 2.5% of the total mass of the potassium nitrate solution; the ammonium nitrate in the ammonium nitrate solution preferably comprises 0.2% to 0.4% of the total mass of the ammonium nitrate solution, more preferably 0.25% to 0.35% of the total mass of the ammonium nitrate solution. The spraying amount is such that the leaves and branches are completely wetted but not dripping water.
[0025] In the method of this invention, the glucose content in the glucose solution 3 is preferably 0.70% to 0.85% of the total mass of the glucose solution 3, more preferably 0.75% to 0.80% of the total mass of the glucose solution 3; the potassium nitrate content in the potassium nitrate solution is preferably 1.5% to 2.5% of the total mass of the potassium nitrate solution, more preferably 1.8% to 2.2% of the total mass of the potassium nitrate solution; the amino acid trace element water-soluble fertilizer content in the amino acid trace element water-soluble fertilizer solution is preferably 0.3% to 0.5% of the total mass of the amino acid trace element water-soluble fertilizer solution, more preferably 0.35% to 0.45% of the total mass of the amino acid trace element water-soluble fertilizer solution. The application rate is such that the leaves and branches are completely moistened but not dripping water. In a specific embodiment of this invention, the brand of the amino acid trace element water-soluble fertilizer is Yiluhuakai Shipuwang, registration certificate number Nongfei (2004) Zhunzi 0313.
[0026] In the method of the present invention, the mango tree is preferably 6 to 10 years old, and more preferably 7 to 8 years old.
[0027] This invention also provides the application of the method for promoting early flowering of mangoes in mango cultivation. This invention can promote early flowering of mangoes, thereby enabling them to mature earlier and effectively avoid the peak season for mangoes to be on the market.
[0028] The technical solutions provided by the present invention will be described in detail below with reference to the embodiments, but they should not be construed as limiting the scope of protection of the present invention.
[0029] Unless otherwise specified, the following embodiments are all conventional methods.
[0030] Unless otherwise specified, all materials and reagents used in the following examples are commercially available.
[0031] Example 1
[0032] One method to promote early flowering in mangoes includes the following steps:
[0033] The mango tree is 8 years old. Six bamboo poles with a diameter of 4cm are inserted around the tree canopy at a distance of 45cm from the drip line. The bamboo poles are 45cm higher than the tree canopy. The tops of the bamboo poles are connected to each other with wire. Five ultraviolet lamps are hung on the wire connecting the tops of the bamboo poles.
[0034] After the autumn shoots of the mango tree turn dark green, spray the autumn shoots with glucose solution 1 (0.35% w / w), the amount of spray should be enough to wet the autumn shoots completely but not drip water; then carry out the first ultraviolet lamp irradiation (ultraviolet lamp power is 80W), the first ultraviolet lamp irradiation lasts for 10 days.
[0035] After the first UV lamp irradiation, the first water control should be carried out: the watering frequency should be controlled to once every 12 days, and the water control period should be 1 month.
[0036] Thirty days after the first UV irradiation, spray with glucose solution 2 (0.6% w / w), the amount of which should be enough to completely moisten the autumn shoots but not drip water; then carry out the second UV irradiation (UV lamp power is 80W), the second UV irradiation lasts for 12 days.
[0037] After the second UV lamp irradiation, a second water control measure will be implemented: the watering frequency will be controlled to once every 12 days, and the water control period will be 1 month.
[0038] Seven days after the second UV irradiation, spray the leaves with a compound solution of potassium nitrate and ammonium nitrate. The compound solution of potassium nitrate and ammonium nitrate is obtained by mixing potassium nitrate solution (2.5% w / w) and ammonium nitrate solution (0.35% w / w). The amount of spray should be enough to wet the leaves and branches completely but not drip.
[0039] Two weeks after spraying the compound solution of potassium nitrate and ammonium nitrate, spray a mixture of glucose solution 3 (0.8% w / w), potassium nitrate solution (2.2% w / w), and amino acid trace element water-soluble fertilizer solution (0.45% w / w). The amount of spray should be enough to wet the leaves and branches completely but not drip.
[0040] Example 2
[0041] One method to promote early flowering in mangoes includes the following steps:
[0042] The mango tree is 8 years old. Six bamboo poles with a diameter of 4cm are inserted around the tree canopy at a distance of 40cm from the drip line. The bamboo poles are 40cm higher than the tree canopy. The tops of the bamboo poles are connected to each other with wire. Four ultraviolet lamps are hung on the wire connecting the tops of the bamboo poles.
[0043] After the autumn shoots of the mango tree turn dark green, spray the autumn shoots with glucose solution 1 (0.3% w / w), the amount of which should be enough to wet the autumn shoots completely but not drip water; then carry out the first ultraviolet lamp irradiation (ultraviolet lamp power is 70W), the first ultraviolet lamp irradiation lasts for 8 days.
[0044] After the first UV lamp irradiation, the first water control should be carried out: the watering frequency should be controlled to once every 10 days, and the water control period should be 1 month.
[0045] One month after the first UV irradiation, spray with glucose solution 2 (0.55% w / w), the amount of which should be enough to completely moisten the autumn shoots but not drip water; then carry out the second UV irradiation (UV lamp power is 70W), the second UV irradiation lasts for 10 days.
[0046] After the second UV lamp irradiation, a second water control measure will be implemented: the watering frequency will be controlled to once every 10 days, and the water control period will be 1 month.
[0047] Seven days after the second UV irradiation, spray the leaves with a compound solution of potassium nitrate and ammonium nitrate. The compound solution of potassium nitrate and ammonium nitrate is obtained by mixing potassium nitrate solution (2% w / w) and ammonium nitrate solution (0.3% w / w). The amount of spray should be enough to wet the leaves and branches completely but not drip.
[0048] Two weeks after spraying the compound solution of potassium nitrate and ammonium nitrate, spray a mixture of glucose solution 3 (0.75% w / w), potassium nitrate solution (2% w / w), and amino acid trace element water-soluble fertilizer solution (0.4% w / w). The amount of spray should be enough to wet the leaves and branches completely but not drip.
[0049] Example 3
[0050] One method to promote early flowering in mangoes includes the following steps:
[0051] The mango tree is 8 years old. Six bamboo poles with a diameter of 4cm are inserted around the tree canopy at a distance of 45cm from the drip line. The bamboo poles are 45cm higher than the tree canopy. The tops of the bamboo poles are connected to each other with wire. Six ultraviolet lamps are hung on the wire connecting the tops of the bamboo poles.
[0052] After the autumn shoots of the mango tree turn dark green, spray the autumn shoots with glucose solution 1 (0.4% w / w), the amount of spray should be enough to wet the autumn shoots completely but not drip water; then carry out the first ultraviolet lamp irradiation (ultraviolet lamp power is 100W), the first ultraviolet lamp irradiation lasts for 10 days.
[0053] After the first UV lamp irradiation, the first water control should be carried out: the watering frequency should be controlled to once every 14 days, and the water control period should be 1 month.
[0054] One month after the first UV irradiation, spray with glucose solution 2 (0.65% w / w), the amount of which should be enough to completely moisten the autumn shoots but not drip water; then carry out a second UV irradiation (UV lamp power is 100W), the second UV irradiation lasts for 12 days.
[0055] After the second UV lamp irradiation, a second water control measure will be implemented: the watering frequency will be controlled to once every 14 days, and the water control period will be 1 month.
[0056] Seven days after the second UV irradiation, spray the leaves with a compound solution of potassium nitrate and ammonium nitrate. The compound solution of potassium nitrate and ammonium nitrate is obtained by mixing potassium nitrate solution (3% w / w) and ammonium nitrate solution (0.4% w / w). The amount of spray should be enough to wet the leaves and branches completely but not drip.
[0057] Two weeks after spraying the compound solution of potassium nitrate and ammonium nitrate, spray a mixture of glucose solution 3 (0.85% w / w), potassium nitrate solution (2.5% w / w), and amino acid trace element water-soluble fertilizer solution (0.5% w / w). The amount of spray should be enough to wet the leaves and branches completely but not drip.
[0058] Comparative Example 1
[0059] The difference between this comparative example and Example 1 is as follows:
[0060] After the autumn shoots of the mango tree turned dark green, glucose solution 1 (0.35% w / w) was not sprayed, and the first ultraviolet light irradiation was not carried out.
[0061] Comparative Example 2
[0062] The difference between this comparative example and Example 1 is as follows:
[0063] The first water control was not carried out.
[0064] Comparative Example 3
[0065] The difference between this comparative example and Example 1 is as follows:
[0066] No glucose solution 2 (0.6% w / w) was sprayed, and no second UV irradiation was performed.
[0067] Comparative Example 4
[0068] The difference between this comparative example and Example 1 is as follows:
[0069] No second water control was carried out.
[0070] Comparative Example 5
[0071] The difference between this comparative example and Example 1 is as follows:
[0072] The mixture of glucose solution 3 (0.8% w / w), potassium nitrate solution (2.2% w / w), and amino acid trace element water-soluble fertilizer solution (0.45% w / w) was not sprayed.
[0073] Comparative Example 6
[0074] The difference between this comparative example and Example 1 is as follows:
[0075] Seven days after the second UV irradiation, the leaves were not sprayed with potassium nitrate solution (2.5% w / w) or ammonium nitrate solution (0.35% w / w).
[0076] Experimental Example 1
[0077] In 2024, in an orchard in Yuanjiang County, Yuxi City, Yunnan Province, methods from Examples 1-3 and Comparative Examples 1-6 were used to promote early flowering of mangoes during the mango planting process. The conventional mango planting method (without any measures to promote early flowering) served as the control group. Ten mango trees of the "Guifei" variety and 8-year-old age were treated with each method.
[0078] The flowering time of mango trees treated with different methods was statistically analyzed. Using the flowering time of the control group as a baseline, the time by which the mango trees under different methods flowered earlier was calculated. The results are shown in Table 1.
[0079] Table 1. Timing of Mango Tree Flowering
[0080] deal with Flowering time Flowering time deal with Flowering time Flowering time control group March 17 —— Comparative Example 2 February 10 36d Example 1 February 1 45d Comparative Example 3 March 3 14d Example 2 February 5 41d Comparative Example 4 February 12 34d Example 3 February 3 43d Comparative Example 5 February 21 25d Comparative Example 1 March 5 12d Comparative Example 6 February 18 28d
[0081] As shown in Table 1, this application can advance the flowering time of mangoes by 45 days, thereby advancing the ripening time of mangoes by 45 days, which can effectively avoid the peak season for mangoes.
[0082] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A method for promoting early flowering of mangoes, characterized in that, Includes the following steps: After the autumn shoots of the mango tree turn dark green, spray the autumn shoots with glucose solution 1, and then perform the first ultraviolet irradiation, which lasts for 8 to 10 days. After the first UV lamp irradiation, the first water control should be carried out; 25-35 days after the first UV irradiation, spray the autumn shoots with glucose solution 2, and then conduct a second UV irradiation, which lasts for 10-12 days. After the second UV lamp irradiation, a second water control procedure is performed; Six to eight days after the second UV irradiation, spray the leaves with a compound solution of potassium nitrate and ammonium nitrate. Two weeks after spraying the compound solution of potassium nitrate and ammonium nitrate, spray the whole plant with a mixture of glucose solution, potassium nitrate solution and amino acid trace element water-soluble fertilizer solution; The glucose in glucose solution 1 is 0.25% to 0.40% of the total mass of the solution. The glucose in glucose solution 2 is 0.50% to 0.65% of the total mass of the solution; The potassium nitrate and ammonium nitrate composite solution is obtained by mixing a potassium nitrate solution and an ammonium nitrate solution; the mass of potassium nitrate in the potassium nitrate solution is 1% to 3% of the total mass of the potassium nitrate solution. The mass of ammonium nitrate in the ammonium nitrate solution is 0.2% to 0.4% of the total mass of the ammonium nitrate solution; The glucose in glucose solution 3 comprises 0.70% to 0.85% of the total mass of glucose solution 3; the potassium nitrate in potassium nitrate solution comprises 1.5% to 2.5% of the total mass of potassium nitrate solution; and the amino acid trace element water-soluble fertilizer in amino acid trace element water-soluble fertilizer solution comprises 0.3% to 0.5% of the total mass of amino acid trace element water-soluble fertilizer solution. The water control refers to controlling the watering frequency to once every 10 to 14 days, with each water control period lasting for 1 month.
2. The method according to claim 1, characterized in that, Insert bamboo poles around the mango tree canopy 30-50cm outside the drip line. The bamboo poles should be 30-50cm higher than the canopy. Connect the tops of the bamboo poles with wire and hang ultraviolet lamps on the wires connecting the tops of the bamboo poles. Turn on the ultraviolet lamps for the first or second ultraviolet irradiation.
3. The method according to claim 2, characterized in that, Four to six ultraviolet lamps with a power of 60 to 100W are hung on the wire connecting the top of the bamboo pole.
4. The method according to claim 1, characterized in that, The mango trees are 6 to 10 years old.
5. The application of the method for promoting early flowering of mangoes according to any one of claims 1 to 4 in mango cultivation.