Intelligent irrigation method for under-forest cut flower cultivation

Abstract

The invention belongs to the technical field of cut flower cultivation, and particularly relates to an intelligent irrigation method for under-forest cut flower cultivation. An intelligent irrigation method for under-forest cut flower cultivation comprises the following steps that a plant growth regulator is irrigated once in the bud stage, the small wind chime stage, the large wind chime stage and the blooming stage of cut flowers respectively, and the plant growth regulator is formed by mixing a hemin solution and a salicylic acid solution in an equal-volume mode. According to the method, the plant growth regulator formed by mixing the hemin solution and the salicylic acid solution is irrigated in the bud growing period, the small wind chime period, the large wind chime period and the blooming period of the cut flowers respectively, the total flowering period of the cut flowers and the flowering rate of the cut flowers can be effectively prolonged, and the economic benefits of under-forest cut flower cultivation can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cut flower cultivation, and in particular relates to an intelligent irrigation method for cut flower cultivation under forests. Background Art

[0002] Cut flowers under the forest are flowers with certain ornamental or economic value planted in the forest or woodland, relying on the forest, woodland and its ecological environment. Cut flowers under the forest make full use of the space under the forest and the shaded environment, planting flowers and ornamental plants such as peonies and peonies, which can not only beautify the environment, but also generate economic benefits. As a forest economic model, cut flowers under the forest are a form of forest planting, which can improve land utilization and economic benefits.

[0003] Peony is a typical temperate plant. It likes warmth and coolness, has a certain degree of cold resistance, likes sunlight, is slightly shade-tolerant, and requires deep, loose soil. The annual cycle of peony is divided into a growth period and a relative dormancy period. Peony "shoots in spring, naps in summer, roots in autumn, and dormancy in winter" is the change of the annual cycle of peony growth and development. Professor Yu Heng divides the flowering phenological changes into 12 phenological periods, including the bud stage, small bell stage, large bell stage, round peach stage, initial opening stage, full bloom stage, and flowering stage. Among them, the bud-erecting stage is when the flower buds are 5-6cm higher than the top of the young leaves, the leaf sequence on the flower stem is obvious, and the flower buds are about 1.8×0.8cm in size; the small wind bell stage is when the sepals covering the flower buds begin to open outward, forming a wind bell shape, and the flower buds are about 2×1.3cm in size; the large wind bell stage is when the outer sepals of the flower buds are all open, the flower buds increase in size and become round, and the flower buds are about 2.5×1.8cm in size; the round peach stage is when the flower buds rapidly increase in size, shaped like cotton balls, with the top still slightly pointed, and the flower buds are about 3×2.8cm in size.

[0004] The flowering period of a flower refers to the time a single flower experiences from initial opening to withering, including the initial flowering period, the full flowering period and the final flowering period, wherein about 5% of the flowers are in bloom for the initial flowering period, about 50% or more of the flowers are in bloom for the full flowering period, and about 80% or more of the flowers are withered for the final flowering period. The prior art has disclosed that the application of plant growth regulators during the peony planting process can regulate the total flowering period, but the regulatory effects of different plant growth regulators vary greatly, and even if the same plant growth regulator is applied in different phenological periods, the effects produced will also vary greatly. At present, there is no report on the use of hemin chloride and salicylic acid mixed for regulating the total flowering period of peonies.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent irrigation method for cut flower cultivation under forests, which uses a mixed solution of hemin chloride and salicylic acid at different stages of peony, can increase the total flowering period of peony, and is helpful to improve the economic benefits of peony.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An intelligent irrigation method for understory cut flower cultivation comprises the following steps: irrigating once with a plant growth regulator at the bud erection stage, small bell stage, large bell stage and blooming stage of the cut flowers, respectively, wherein the plant growth regulator is a mixture of equal volumes of a hemin chloride solution and a salicylic acid solution.

[0009] Preferably, the concentration of the hemin solution is 2.5 μmol / L; the concentration of the salicylic acid solution is 2.5 μmol / L.

[0010] Preferably, the hemin solution is prepared by taking 0.3250 g of hemin into a beaker, adding 5 mL of 1 mol / L sodium hydroxide solution, gently shaking the beaker until the hemin is completely dissolved, and adding deionized water to dilute to 2.5 μmol / L.

[0011] Preferably, the salicylic acid solution is prepared by taking 0.1381 g of salicylic acid into a beaker, adding 10 mL of anhydrous ethanol, gently shaking the beaker until the salicylic acid is completely dissolved, and adding deionized water to dilute to 2.5 μmol / L.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention irrigates the cut flowers with a plant growth regulator mixed with a hemin solution and a salicylic acid solution during the bud erection stage, the small bell stage, the large bell stage and the full bloom stage respectively, which can effectively prolong the total flowering period and the flowering rate of the cut flowers, and is helpful to improve the economic benefits of understory cut flower cultivation. DETAILED DESCRIPTION

[0014] The following is a clear and complete description of the technical solution of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the present invention.

[0015] 1. Materials and Methods

[0016] 1.1 Peony Varieties

[0017] Peony "Purple Erqiao"

[0018] 1.2 Experimental site

[0019] Guangxi Qipo Forest Farm Forest Economy Demonstration Zone

[0020] 1.3 Test methods

[0021] The peony planting area was randomly divided into multiple plots. The solution in Table 1 was irrigated once at the root of the cut peony during the bud stage (around early April), small bell stage, large bell stage and blooming stage, with an irrigation volume of 20 mL / plant, and the treatment of irrigating the same amount of water was set as a blank control. Twenty peony plants were randomly selected from each plot, and three flower buds (flowers that have been formed but not yet opened) were randomly selected from each plant, marked and numbered, and four plots were treated with each solution. The soil was kept moist for the rest of the time. The total flowering period and flowering rate (the ratio of the actual number of flowers to the number of flower buds) of each treatment were recorded, and the results are shown in Table 1.

[0022] Table 1 Effects of different treatments on total flowering period, flowering rate and maximum flower diameter of peony

[0023]

[0024] As shown in Table 1, the total flowering period of irrigating 2.5 μmol / L hemin solution is 11.2 days, 0.6 days longer than the blank control; the total flowering period of irrigating 2.5 μmol / L salicylic acid solution is 9.8 days, 0.8 days less than the blank control; the total flowering period of irrigating 2.5 μmol / L hemin solution + 2.5 μmol / L salicylic acid solution is 12.4 days, 1.8 days longer than the blank control. It can be seen that irrigating the hemin solution and salicylic acid solution of the present invention can extend the total flowering period of peony flowers.

[0025] In terms of the flowering rate, the flowering rate of irrigating with 2.5 μmol / L hemin solution was 66.25%, 18.33% higher than that of the blank control; the flowering rate of irrigating with 2.5 μmol / L salicylic acid solution was 11.79%, 1.65% higher than that of the blank control; the flowering rate of irrigating with 2.5 μmol / L hemin solution + 2.5 μmol / L salicylic acid solution was 87.08%, 39.16% higher than that of the blank control. It can be seen that irrigating with the hemin solution and salicylic acid solution of the present invention can improve the flowering rate of peony flowers.

[0026] In summary, the present invention irrigates the plant growth regulator composed of a mixture of hemin solution and salicylic acid solution during the bud erection stage, small bell stage, large bell stage and blooming stage of cut flowers, respectively, which can effectively prolong the total flowering period and the flowering rate of cut flowers, and help to improve the economic benefits of cut flower cultivation under forests.

[0027] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. An intelligent irrigation method for cut flower cultivation under forests, characterized in that: The following steps are involved: The plant growth regulator is irrigated once in the bud erection stage, small bell stage, large bell stage and blooming stage of the cut flowers respectively. The plant growth regulator is a mixture of equal volumes of hemin chloride solution and salicylic acid solution.

2. The intelligent irrigation method for cut flower cultivation under forest according to claim 1, characterized in that: The concentration of the hemin solution is 2.5 μmol / L; the concentration of the salicylic acid solution is 2.5 μmol / L.

3. The intelligent irrigation method for cut flower cultivation under forest according to claim 1, characterized in that: The preparation method of the hemin solution is as follows: take 0.3250 g of hemin into a beaker, add 5 mL of 1 mol / L sodium hydroxide solution, gently shake the beaker until the hemin is completely dissolved, and add deionized water to dilute to 2.5 μmol / L.

4. The intelligent irrigation method for cut flower cultivation under forest according to claim 1, characterized in that: The preparation method of the salicylic acid solution is as follows: take 0.1381 g of salicylic acid into a beaker, add 10 mL of anhydrous ethanol, gently shake the beaker until the salicylic acid is completely dissolved, and add deionized water to dilute to 2.5 μmol / L.

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