Method for nutrition rejuvenation after forcing cultivation of Zhongyuan peonies in winter

Abstract

The invention belongs to the technical field of plant cultivation, and discloses a method for nutrition rejuvenation of Chinese-original peony after winter forcing cultivation, which comprises the following steps: fertilizing and watering Chinese-original peony plants after plant pruning treatment at regular intervals. The plant pruning treatment comprises the step of immediately pruning sick and weak branches and leaves and residual flowers after the Chinese and original peonies are forcibly cultivated and bloomed in winter; the step of fertilizing comprises dressing mixed nutrient fertilizers in the late flowering stage, the wintering stage and the early flowering stage, and the mixed nutrient fertilizers comprise nitrogen, phosphorus, potassium and carbon-based nutrient fertilizers; watering comprises watering once every ten days after fertilization. In conclusion, the method is easy and convenient to operate, through reasonable fertilization and water management, the mixed nutrient fertilizer only needs to be applied three times in the later flowering period, the wintering period and the early flowering period in the whole rejuvenation process, and therefore the peony rejuvenation operation process is effectively simplified, and the method is suitable for large-scale application.

Description

Technical Field

[0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a method for nutritional rejuvenation of Zhongyuan peony after forced cultivation in winter. Background Art

[0002] Peony is a traditional Chinese flower, known as the "king of flowers". It symbolizes auspiciousness and wealth and is deeply loved and respected by people. However, since its flowering period is limited to mid-to-late April to early May in spring, the viewing period is short, which greatly limits the development space of peony. Therefore, in production, off-season forced cultivation is usually carried out with the help of greenhouses and other facilities to achieve year-round flowering of peonies to meet supply needs and create more economic benefits. However, due to the large amount of energy consumed by off-season forced cultivation of peonies, the survival rate and comprehensive utilization rate of plants after flowering are low, resulting in the direct abandonment of forced cultivation peonies after flowering, causing environmental pollution and great waste, and becoming a concept of disposable consumption. Nutritional rejuvenation technology can help restore the normal growth of off-season forced cultivation peonies, extend their life cycle, reduce resource waste and planting costs, and achieve the rational use of peony resources.

[0003] Peonies grown off-season need to accumulate sufficient nutrients and energy through nutritional rejuvenation technology to support the development of healthy new roots and leaves. Therefore, timely replenishment of water and nutrients according to the different growth stages of peonies is the key to rejuvenation. However, most of the current post-flowering rejuvenation management of peonies relies on nursery cultivation, which is time-consuming and labor-intensive. An efficient and convenient cultivation method is urgently needed. Summary of the invention

[0004] In view of this, in order to solve the problems raised in the above background technology, the object of the present invention is to provide a method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation, comprising regularly fertilizing and watering the Zhongyuan peony plants after plant pruning;

[0007] The fertilization includes applying mixed nutrient fertilizers in the late flowering period, the wintering period and the early flowering period, and the mixed nutrient fertilizers include nitrogen, phosphorus, potassium and carbon-based nutrient fertilizers;

[0008] The watering includes watering once every ten days after fertilizing.

[0009] Preferably, the plant pruning treatment includes: immediately pruning sick and weak branches and leaves and dead flowers after the flowering of the Zhongyuan peony in winter forced cultivation is completed.

[0010] Preferably, the Zhongyuan peony plant is a 3-5 year old forcing potted peony plant.

[0011] Preferably, the late flowering period, the overwintering period and the early flowering period represent May, December and March of the following year respectively.

[0012] Preferably, when applying mixed nutrient fertilizer, 25 g of mixed nutrient fertilizer is dissolved in every 2 L of clean water.

[0013] Preferably, the mass ratio of nitrogen, phosphorus, potassium and carbon-based nutrient fertilizer in the mixed nutrient fertilizer is 1:1:1:2, and the application amount of the mixed nutrient fertilizer is 25g / pot.

[0014] Preferably, the carbon-based nutrient fertilizer includes N, P2O5, K2O, small molecule organic matter and inorganic minerals.

[0015] Preferably, the mass ratio of N, P2O5, K2O, small molecule organic matter and inorganic minerals in the carbon-based nutrient fertilizer is 5:5:10:12:2.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) Easy operation: Through reasonable fertilization and water management, the overall rejuvenation process only requires three topdressings of mixed nutrient fertilizers in the late flowering period, the wintering period, and the early flowering period, which effectively simplifies the rejuvenation operation process of peonies and is suitable for large-scale application.

[0018] (2) Significant rejuvenation effect: This method can significantly improve the root development, leaf growth and physiological activity of peony plants, thereby improving the overall growth state and flowering rate of peonies.

[0019] (3) Improvement of growth indicators: Under rejuvenation treatment, the root length, leaf area, chlorophyll content and flowering effect of peony were significantly improved, which can effectively enhance the stress resistance and ornamental effect of peony. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The diagram shows the phenotypic changes of the peony after rejuvenation of the embodiment and the comparative example (CK is the comparative example, CNF is the embodiment). DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] A method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation, comprising:

[0023] S1. Plant pruning

[0024] In the present invention, 3 to 5-year-old forcing cultivation potted Paeonia suffruticosa plants are selected;

[0025] After flowering ends, immediately prune away sick branches and dead flowers.

[0026] S2. Fertilization

[0027] Weigh N, P2O5, K2O, small molecule organic matter and inorganic minerals in a mixing ratio of 5:5:10:12:2 and mix to form a carbon-based nutrient fertilizer;

[0028] Weigh nitrogen, phosphorus, potassium and carbon-based nutrient fertilizers in a mixing ratio of 1:1:1:2 and mix them to form a mixed nutrient fertilizer;

[0029] Dissolve 25g of mixed nutrient fertilizer in every 2L of clean water and stir until completely dissolved;

[0030] A mixed nutrient fertilizer solution was applied to each pot of peony in the late flowering period (May), the overwintering period (December) and the early flowering period (March of the following year), and the application amount of the mixed nutrient fertilizer was 25 g / pot.

[0031] S3. Watering

[0032] Water once every ten days after fertilizing, making sure to water thoroughly.

[0033] Based on the above-mentioned method of nutritional rejuvenation, the present invention also provides the following specific examples:

[0034] Example (CNF)

[0035] S1. Plant pruning

[0036] In the present invention, 3-5 year old potted “Jinpaohong” peony plants are selected;

[0037] After flowering ends, immediately prune away sick branches and dead flowers.

[0038] S2. Fertilization

[0039] Weigh N (100 g), P2O5 (100 g), K2O (200 g), small molecule organic matter (240 g) and inorganic minerals (40 g) and mix them to form a carbon-based nutrient fertilizer;

[0040] Weigh nitrogen (5 g), phosphorus (5 g), potassium (5 g), and carbon-based nutrient fertilizer (10 g), and mix them to form a mixed nutrient fertilizer;

[0041] Dissolve the weighed mixed nutrient fertilizer into 2L of clean water and stir until completely dissolved;

[0042] Fertilize each pot of peony with 2L of mixed nutrient fertilizer solution in the late flowering period (May), the overwintering period (December) and the early flowering period (March of the following year).

[0043] S3. Watering

[0044] Water once every ten days after fertilizing, making sure to water thoroughly.

[0045] Comparative Example (CK)

[0046] S1. Plant pruning

[0047] In the present invention, 3-5 year old potted “Jinpaohong” peony plants are selected;

[0048] After flowering ends, immediately prune away sick branches and dead flowers.

[0049] S2. Watering

[0050] Water once every ten days after fertilizing, making sure to water thoroughly.

[0051] Observation and detection

[0052] After the rejuvenation treatment of the embodiments and comparative examples was completed, the following related indicators of the peony were tested in March, April, June and August of the following year.

[0053] Soil nutrient testing: The five-point sampling method is used to mix soil samples and analyze the effective nutrient content of the soil.

[0054] Growth index observation: Observe the growth indexes of peony plants and the phenotype of their root systems.

[0055] Root and leaf element content detection: Determine the content of nitrogen, phosphorus and potassium in peony roots and leaves.

[0056] Leaf physiological index detection: determination of leaf area, photosynthetic pigment content, leaf soluble sugar and soluble protein content.

[0057] Results and Analysis

[0058] Table 1 below shows the changes in total nitrogen, total phosphorus and total potassium in the soil of peony at different growth stages after rejuvenation treatment (g / kg)

[0059]

[0060] Table 2 below shows the changes in available nitrogen, available phosphorus and available potassium in the soil at different growth stages of peony after rejuvenation treatment (mg / kg)

[0061]

[0062] It can be seen from Tables 1 and 2 above that the contents of total nitrogen, total phosphorus, total potassium, available nitrogen, available phosphorus and available potassium in the soil after rejuvenation treatment were significantly higher than those in the control group.

[0063] Table 3 below shows the changes in peony growth indicators after rejuvenation treatment

[0064]

[0065] As shown in Table 3, the length of new stems, flower diameter, number of petal rings, number of petals and flowering rate after rejuvenation treatment were improved to varying degrees, and root system indicators such as average root length, longest root length and average root amount were increased, indicating that the plant growth indicators were significantly improved after rejuvenation treatment.

[0066] Table 4 below shows the changes in nitrogen, phosphorus and potassium in peony roots and leaves after rejuvenation treatment (g / kg)

[0067]

[0068] As shown in Table 4, the nitrogen, phosphorus and potassium contents in the roots of plants after rejuvenation treatment increased significantly.

[0069] Table 5 below shows the changes in leaf area, photosynthetic pigment content, leaf soluble sugar and soluble protein content of peony after rejuvenation treatment

[0070]

[0071] As shown in Table 5, the leaf area, photosynthetic pigment content, leaf soluble sugar and soluble protein content of the plants after rejuvenation treatment increased, which indicates that the physiological indicators of the leaves of the plants after rejuvenation treatment were improved.

[0072] In summary, the method provided by the present invention can effectively achieve nutritional rejuvenation of peony after winter forced cultivation, is easy to operate, and can effectively and significantly improve the growth condition and rejuvenation effect of peony.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation, characterized in that: This includes regularly fertilizing and watering the Zhongyuan peony plants after plant pruning; The fertilization includes applying mixed nutrient fertilizers in the late flowering period, the wintering period and the early flowering period, and the mixed nutrient fertilizers include nitrogen, phosphorus, potassium and carbon-based nutrient fertilizers; The watering includes watering once every ten days after fertilizing.

2. The method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation according to claim 1, characterized in that: The plant pruning treatment comprises: pruning sick and weak branches and leaves and residual flowers immediately after the flowering of the winter forced cultivation of the Central Plains peony is completed.

3. The method for nutritional rejuvenation of a Zhongyuan peony after winter forced cultivation according to claim 2, characterized in that: The Zhongyuan peony plant is a 3-5 year old forcing cultivation potted peony plant.

4. The method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation according to claim 3, characterized in that: The late flowering period, the overwintering period and the early flowering period respectively represent May, December and March of the following year.

5. The method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation according to claim 4, characterized in that: When applying the mixed nutrient fertilizer, dissolve 25g of the mixed nutrient fertilizer into every 2L of clean water.

6. The method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation according to claim 5, characterized in that: The mass ratio of nitrogen, phosphorus, potassium and carbon-based nutrient fertilizer in the mixed nutrient fertilizer is 1:1:1:2, and the application amount of the mixed nutrient fertilizer is 25g / pot.

7. The method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation according to claim 6, characterized in that: The carbon-based nutrient fertilizer includes N, P2O5, K2O, small molecular organic matter and inorganic minerals.

8. The method for nutritional rejuvenation of Zhongyuan peony after winter forced cultivation according to claim 7, characterized in that: The mass ratio of N, P2O5, K2O, small molecular organic matter and inorganic minerals in the carbon-based nutrient fertilizer is 5:5:10:12:2.

Images