CN113519561B - Deinsectization egg composition for soil improvement and application thereof - Google Patents

Abstract

The invention belongs to the technical field of agriculture and forestry, and discloses a deinsectization ovum composition for soil improvement and application thereof. The composition comprises the following components in parts by weight: 500-2000 parts of macleaya cordata and 10-35 parts of calcium hydroxide. The composition has an excellent insecticidal egg effect, the insecticidal egg rate can reach more than 90%, is greater than the sum of the insecticidal egg rate of macleaya cordata and the insecticidal egg rate of calcium hydroxide, has a synergistic effect, is safe and non-toxic, and does not pollute the environment. The composition can be used for pest control and under-forest flower scene construction.

Description

Deinsectization egg composition for soil improvement and application thereof

Technical Field

The invention belongs to the technical field of agriculture and forestry, and particularly relates to a deinsectization egg composition for soil improvement and application thereof.

Background

The sterilization and deinsectization are necessary work in the agricultural cultivation process, the sterilization and deinsectization are beneficial to killing bacteria and pests in soil, reducing the plant diseases and insect pests of crops and maintaining the growth environment of the crops, in order to eliminate harmful bacteria and pests in the soil, people adopt chemical pesticides, radiation and baking to carry out insecticidal treatment on the soil before planting plants, as the pesticides are easy to volatilize, part of the pesticides are emitted in the spraying process and cannot be fully utilized, most of the chemical pesticides contain harmful substances, the harmful substances are remained in vegetables after growth and seriously harm the health of human bodies, the survival capacity of some pests, especially root-knot nematodes, is very strong, so the bacteria and pests can be killed only by increasing the using amount of the chemical pesticides, a vicious circle is formed, and the environmental pollution of the soil, water source and the like is serious; radiation disinfection is adopted, and rays with extremely strong penetrating power and energy, such as gamma rays of cobalt 60, are used for sterilization and disinfection, so that the method is high in cost and difficult to use; although the methods such as baking are environment-friendly, the heat dissipation after baking is fast, the treatment efficiency is low, the method is only suitable for treating a small amount of soil, such as nutrient soil treatment in the field of flower cultivation, and the like, but not suitable for direct soil treatment in large-area cultivated land, the baking can destroy the nutrient structure of the soil, and after insect killing and sterilization, the nutrient components required by crops need to be added again to ensure the normal growth of the crops. Therefore, a deinsectization egg composition for soil improvement and application thereof are urgently needed.

The forest is an important component of urban gardens and plays an important role in landscape construction, ecological regulation and the like, particularly in understory landscape. Patent document CN107094456A discloses a method for recovering under-forest vegetation by using garden waste and rural plants to build a landscape of the south-rural ground cover of the green, which utilizes preprocessed garden waste and combines screened excellent rural plants to produce a low-cost and high-efficiency under-forest rural vegetation landscape. Patent document CN105746155A discloses a greening method suitable for greening the forest in northern cities, which constructs a living space suitable for plants under the forest by technical means of soil improvement, gravel paving, wall building, soil filling and the like, and plants such as hosta plantaginea, potentilla anserine, festuca arundinacea and sedum decumbens are selected and mixed for planting, so as to achieve the purpose of greening the area under the forest. Patent document CN108012800A discloses a mixed planting method under an ornamental forest of lycoris radiata and oxalis triangularis, which comprises the steps of seed ball preparation, land preparation and bedding, planting, fertigation, intertillage weeding, pest control and the like, and finally, the lycoris radiata and the oxalis triangularis are mixed and planted under the ornamental forest to replace the traditional lawn, so that the characteristic plant landscape of fresh purple-leaf flowers is formed, and the colorful, multi-level and three-dimensional garden landscape is created. Patent document CN110235705A discloses a method for covering ecological landscape grass vegetation on open land under forest, which increases ecological landscape grass vegetation, reduces open land under forest by means of land selection and preparation, shading arrangement, variety selection, planting, maintenance management and the like, is beneficial to water saving, drought resistance, water and soil loss reduction and prevents ecological environment deterioration. Patent document CN110574656A discloses a method for configuring plants of under-forest orchid landscape, which comprises selecting an under-forest planting environment with canopy density of 0.5-0.7, selecting evergreen tree species as a subsidiary, selecting orchid species suitable for field survival as a planting material, selecting strong-adaptability native orchid species as a main, selecting tropical orchid species blooming in long years as a interspersion, adopting a 3-layered planting mode, 1 interspersion planting mode and 1 scenic region epiphyte combined landscape configuration method with enhanced landscape of important nodes, collocating auxiliary materials such as nephrolepis, bird nest and aerial grass, constructing the tropical rain forest landscape with elegant appearance, bright color, rich season, staggered levels and four-hour flowers under the forest, and improving the grade and the connotation of the landscape. Patent document CN108925332A discloses a method for interplanting hosta plantaginea under poplar forest, which is characterized by selecting a poplar forest with loose soil, good drainage and fertile quality, applying sufficient base fertilizer after ground preparation, selecting plant-row spacing according to mature plant heights and mature crown widths of different hosta plantaginea varieties, and constructing and optimizing a composite mode of poplar management, and has important significance in intensive utilization of land resources and promotion of income increase of farmers.

However, most of understory landscape construction in cities mainly comprises the spreading of shade-resistant plants, such as the large-area spreading of the plants such as the cold flowers, the piper sarmentosum and the arrowroot under the forests, and has the problems of monotonous color, few plant varieties, simple structural hierarchy, lack of vitality, poor biodiversity and the like. Along with the change of the concept of people and the improvement of the aesthetic level, the method provides higher requirements for the understory landscape, requires rich plant types, colorful plants and good landscape effect, and can attract animals and improve the biodiversity. At present, flowers are planted in a plurality of parks under the forest to build the flower scenery, good effects can be obtained in a short time, but the flowers wither rapidly due to lack of illumination, and the flowers need to be replaced frequently; in addition, the water requirement for flowers is large, and excessive watering is frequently carried out, so that a large amount of water resource is wasted. Therefore, the construction of a long-acting low-maintenance flower scene under forest is very necessary.

Disclosure of Invention

The object of the first aspect of the present invention is to provide a composition.

The object of the second aspect of the present invention is to provide the use of the composition of the first aspect of the present invention for pest control.

The third aspect of the present invention is directed to the use of the composition of the first aspect of the present invention in under-forest landscaping construction.

The fourth aspect of the invention aims to provide a method for constructing an under-forest flower scene.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

in a first aspect of the invention, a composition is provided, which comprises the following components in parts by weight: 500-2000 parts of macleaya cordata and 10-35 parts of calcium hydroxide; further preferably, the composition comprises the following components in parts by weight: 600-1800 parts of macleaya cordata and 15-30 parts of calcium hydroxide.

Preferably, the macleaya cordata is decomposed macleaya cordata.

Preferably, the preparation method of the decomposed macleaya cordata is as follows: and (4) taking macleaya cordata as a composting raw material, covering the compost body for composting to obtain the decomposed macleaya cordata.

Preferably, the temperature of the compost in 30cm is controlled to be 55-70 ℃ in the composting process.

Preferably, the composting time is 10-15 days.

Preferably, the composition further comprises the following components in parts by weight: 2000-2800 parts of a matrix; further preferably, the composition further comprises the following components in parts by weight: 2300-2500 parts of a matrix.

Preferably, the substrate is at least one of peat, perlite, vermiculite, mushroom residue and fine sand; further preferably, the substrate is at least one of peat, perlite and vermiculite.

Preferably, the composition comprises the following components in parts by weight: 500-2000 parts of macleaya cordata, 10-35 parts of calcium hydroxide, 1000-1400 parts of peat, 500-700 parts of perlite and 500-700 parts of vermiculite; further preferably, the composition comprises the following components in parts by weight: 600-1800 parts of macleaya cordata, 15-30 parts of calcium hydroxide, 1100-1300 parts of peat, 550-650 parts of perlite and 550-650 parts of vermiculite.

In a second aspect of the invention, there is provided the use of a composition according to the first aspect of the invention for pest control.

In a third aspect of the invention, there is provided the use of a composition according to the first aspect of the invention in the construction of under-forest landscapes.

The fourth aspect of the invention provides a method for constructing an under-forest flower scene, which comprises the following steps:

(1) improving the soil of the forest land: applying the composition of the first aspect in woodland soil;

(2) landscape construction: arranging an outer landscape zone, a middle landscape zone and an inner landscape zone in the forest from the forest edge to the forest in sequence under the forest, wherein the outer landscape zone plants the yin-tolerant flowering plants with the height of less than 0.5m, the middle landscape zone plants the yin-tolerant flowering plants with the height of 0.5-1 m, and the inner landscape zone plants the yin-tolerant flowering plants with the height of 1-1.5 m;

the step (2) comprises pretreatment before planting of the yin-tolerant flowering plants, and comprises the following specific steps: and (3) transferring the yin-tolerant flowering plants to an environment with the shade degree of 50-70%, and spraying a chlorophyll inducer.

Preferably, the pretreatment is carried out 3-5 days before planting.

Preferably, the method for spraying the chlorophyll inducer comprises the following steps: after 5 o' clock in the evening every day, spraying the water on the surface and the back of the leaves of the shade-tolerant flowering plants until the surface and the back of the leaves are fully moistened.

Preferably, the chlorophyll inducer comprises: alpha-ketoglutaric acid and magnesium glycinate.

Preferably, the chlorophyll-inducing agent comprises: 0.5-1.5 mmol/L alpha-ketoglutaric acid and 0.2-0.4 mu mol/L magnesium glycinate.

Preferably, the chlorophyll-inducing agent comprises: 1mmol/L alpha-ketoglutaric acid and 0.2-0.4 mu mol/L magnesium glycinate.

Preferably, step (1) further comprises the steps of: trimming the forest land to ensure that the height of the forest land gradually decreases from the forest to the edge to form a slope.

Preferably, the value of the slope is 10-15 °.

Preferably, the distance between the outer landscape zone and the forest edge in the step (2) is 0-1.5 m.

Preferably, the distance between the middle landscape zone and the forest edge in the step (2) is 1.5-3 m.

Preferably, the distance between the inner landscape zone and the forest edge in the step (2) is more than 3 m.

Preferably, the shade-tolerant flowering plant having a height of less than 0.5m in step (2) is at least one of stemona (hetereotis rotundifolia (Sm.) jacq. -flel.), florists (florscopa scandens rour.), florists (eranthera pulchella Andrews), rieger Begonia (Begonia × elatior), longboat blossom (Ixora chinensis Lam.), and gynura segetum (ariopa cymbidiomorpha (ined)).

Preferably, the shade-tolerant flowering plant having a height of 0.5 to 1m in step (2) is at least one of torch pineapple (Vriesea poelmanii), pseudoazalea (Barleria cristata L.), jasmine mandarin duck (Brunfelsia latifolia (Pohl) Benth.), Clerodendron petiolum (Cleriodendronrum japonicum (Thunb.) Sweet), Tremella sanguinea (Rondelia leucophylla Kunth), and hydrangea vulgaris (Pelargonium hortorum Hortorium).

Preferably, the shade-tolerant flowering plants with the height of 1-1.5 m in the step (2) are at least one of Costus comosus var.

Preferably, the planting density of the outer landscape zone in the step (2) is 25-30 plants per square meter.

Preferably, the planting density of the middle landscape zone in the step (2) is 16-20 plants per square meter.

Preferably, the planting density of the inner landscape zone in the step (2) is 4-8 plants per square meter.

Preferably, the method for constructing an under-forest flower scene further comprises the following steps:

(3) and (4) daily maintenance: keeping the water content of the soil at 70-85%, spraying a chlorophyll inducer every 15-60 days, and adding macleaya cordata every 2-4 months.

Preferably, the spraying amount of the chlorophyll inducer in the step (3) is such that the surface and back of the leaves are all wet.

Preferably, the chlorophyll-inducing agent comprises: alpha-ketoglutaric acid and magnesium glycinate.

Preferably, the chlorophyll-inducing agent comprises: 0.5-1.5 mmol/L alpha-ketoglutaric acid and 0.2-0.4 mu mol/L magnesium glycinate.

Preferably, the chlorophyll-inducing agent comprises: 1mmol/L alpha-ketoglutaric acid and 0.2-0.4 mu mol/L magnesium glycinate.

Preferably, the addition amount of the macleaya cordata in the step (3) is 2-3 kg/m²。

Preferably, the macleaya cordata is decomposed macleaya cordata.

Preferably, the preparation method of the decomposed macleaya cordata is as follows: and (4) taking macleaya cordata as a composting raw material, covering the compost body for composting to obtain the decomposed macleaya cordata.

The invention has the beneficial effects that:

the invention provides a composition, which comprises macleaya cordata and calcium hydroxide, has excellent insecticidal egg effect, has an insecticidal egg rate of more than 90 percent which is greater than the sum of the insecticidal egg rate of the macleaya cordata and the insecticidal egg rate of the calcium hydroxide, has a synergistic effect, is safe and nontoxic, and does not pollute the environment.

The invention provides a method for constructing an under-forest flower scene, which improves the physical and chemical properties of soil by applying a composition for killing insect eggs while killing the insect eggs, so that the soil has good moisture retention and air permeability; by constructing the landscape, a colorful under-forest flower scene is formed, and compared with the single-kind plants paved under the forest, the variety of the under-forest plants is greatly enriched, and the ecological stability under the forest is improved; the method has the advantages that the method can quickly increase the chlorophyll content of the plants by pretreating the yin-tolerant flowering plants before planting, so that the method can be quickly adapted to the under-forest environment; the under-forest flower landscape has the advantages of good landscape, various species, ecological stability, strong stress resistance and low maintenance cost.

The chlorophyll inducer adopted in the method for constructing the under-forest landscapes has broad spectrum (can improve the chlorophyll content of all the plant leaves listed in the invention), high efficiency (can improve the chlorophyll content of the plant leaves by more than 50 percent in 3 days), and safety (no toxicity and no environmental pollution).

In the method for constructing the under-forest flower scenery, the height of the forest land is gradually reduced from the forest to the edge of the forest to form a slope by trimming the forest land, so that the ornamental surface of the under-forest landscape is effectively improved, the ornamental surface is well-arranged, external scattered light can irradiate the deepest plants, and the deepest plants are ensured to have certain illumination; meanwhile, in daily maintenance, the chlorophyll inducer is sprayed every 15-60 days to maintain the chlorophyll content of the plants at a high level, so that the normal life of the plants is guaranteed, the overgrowth of the plants is slowed down, and the growth value is reduced by over 75 percent.

Drawings

Fig. 1 is a schematic sectional view of the under-forest flower scenery constructed in examples 1 and 2.

Fig. 2 is a schematic top view of the under-forest flower scenery constructed in examples 1 and 2.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

The experimental procedures, in which specific conditions are not noted in the following examples, are generally carried out under conventional conditions or conditions recommended by the manufacturers. The materials, reagents and the like used in the present examples are commercially available reagents and materials unless otherwise specified.

The preparation method of the decomposed macleaya cordata crushed slag in the embodiment is as follows: chopping fresh macleaya cordata into 1-3 cm pieces, stacking the chopped macleaya cordata into a pyramid shape, covering with a nylon film, covering with a layer of straw with the thickness of 5cm, and covering with a black shading net; monitoring the internal temperature every day, measuring the temperature within 30cm by using a thermometer, ensuring that the temperature is 55-70 ℃, adding a covering material for heat preservation when the temperature is lower than 55 ℃, lifting the covering material to quickly stir the compost when the temperature is higher than 70 ℃, covering the covering material according to the operation after the temperature is reduced to 60 ℃, and completing the decomposition after 15 days to obtain decomposed macleaya cordata crushed slag.

Example 1 Effect of decomposed Macleaya Cordata and lime Water on the amount of eggs in soil

Treatment group 1: a composition, comprising: 1200g of peat, 600g of perlite, 600g of vermiculite, 600g of decomposed macleaya cordata crushed slag and 15g of calcium hydroxide.

Treatment group 2: a composition, comprising: 1200g of peat, 600g of perlite, 600g of vermiculite, 600g of decomposed macleaya cordata crushed slag and 30g of calcium hydroxide.

Treatment group 3: a composition, comprising: 1200g of peat, 600g of perlite, 600g of vermiculite, 1800g of decomposed macleaya cordata crushed slag and 15g of calcium hydroxide.

Treatment group 4: a composition, comprising: 1200g of peat, 600g of perlite, 600g of vermiculite, 1800g of decomposed macleaya cordata crushed slag and 30g of calcium hydroxide.

Comparative group 1: an insecticide, comprising: 1200g of peat, 600g of perlite, 600g of vermiculite and 600g of decomposed macleaya cordata crushed slag.

Comparative group 2: an insecticide, comprising: 1200g of peat, 600g of perlite, 600g of vermiculite and 1800g of decomposed macleaya cordata crushed slag.

Comparative group 3. an insecticide comprising: 15g of calcium hydroxide.

Comparative group 4. an insecticide comprising: 30g of calcium hydroxide.

Selecting soil under a canopy forest as a test field, uniformly ploughing the soil with the thickness of 10cm on the surface layer, adding the composition/pesticide into the soil (adding one part of the composition/pesticide per square meter), carrying out no treatment on a blank control group (CK) after ploughing the soil, repeating each treatment for 3 times, and measuring the number of active insect eggs in the soil every 1 month, wherein the specific method comprises the following steps: 1) randomly taking 1 cubic decimeter of soil by using a cutting ring; 2) pouring soil into 1000mL of saturated sodium nitrate solution, stirring and separating worm eggs, and standing for 30 minutes; 3) sucking the supernatant liquid out of the filter paper by using a liquid transfer gun to filter the solution, and transferring the worm eggs to the filter paper; 4) absorbing MEB solution (borax dye liquor) by using a liquid transfer gun, and dripping the MEB solution on filter paper to dye worm eggs; 5) the filter paper is placed under a microscope for observation, live worm eggs cannot be dyed, and dead worm eggs can be dyed into blue; 6) counting the number of live worm eggs on the filter paper. The results are shown in table 1 (table 1 results are the average of the data from 3 replicates, rounded off and therefore integers): the addition of the substrate containing the decomposed macleaya cordata crushed slag can obviously reduce the number of active ova in soil, the ova killing rate in 2 months can reach more than 80%, the effect of effectively killing ova cannot be achieved by singly adding calcium hydroxide, but the substrate containing the decomposed macleaya cordata crushed slag and the calcium hydroxide are mixed for use, the ova killing rate can reach more than 90%, and is larger than the sum of the ova killing rates of the substrate containing the decomposed macleaya cordata crushed slag and the calcium hydroxide, which shows that the substrate containing the decomposed macleaya cordata crushed slag and the calcium hydroxide are mixed for use to generate a synergistic effect. After 3 months, the effect of killing the insect eggs is gradually reduced, and the effective substances in the macleaya cordata are gradually degraded possibly, so that the drug effect is reduced, and therefore, the effect of killing the insect eggs can be better obtained by supplementing the macleaya cordata once in 3 months.

TABLE 1 Effect of different treatments on the number of active eggs in soil

Example 2 Effect of chlorophyll-inducing Agents on plant chlorophyll

1. Effect of different chlorophyll inducers on chlorophyll of plants

Experimental group 1: a chlorophyll-inducing agent, comprising: 0.5mmol/L alpha-ketoglutaric acid, 0.2. mu. mol/L magnesium glycinate.

Experimental group 2: a chlorophyll-inducing agent, comprising: 0.5mmol/L alpha-ketoglutaric acid, 0.3. mu. mol/L magnesium glycinate.

Experimental group 3: a chlorophyll-inducing agent, comprising: 0.5mmol/L alpha-ketoglutaric acid, 0.4. mu. mol/L magnesium glycinate.

Experimental group 4: a chlorophyll-inducing agent, comprising: 1mmol/L alpha-ketoglutaric acid, 0.2. mu. mol/L magnesium glycinate.

Experimental group 5: a chlorophyll-inducing agent, comprising: 1mmol/L alpha-ketoglutaric acid, 0.3. mu. mol/L magnesium glycinate.

Experimental group 6: a chlorophyll-inducing agent, comprising: 1mmol/L alpha-ketoglutaric acid, 0.4. mu. mol/L magnesium glycinate.

Experimental group 7: a chlorophyll-inducing agent, comprising: 1.5mmol/L alpha-ketoglutaric acid, 0.2. mu. mol/L magnesium glycinate.

Experimental group 8: a chlorophyll-inducing agent, comprising: 1.5mmol/L alpha-ketoglutaric acid, 0.3. mu. mol/L magnesium glycinate.

Experimental group 9: a chlorophyll-inducing agent, comprising: 1.5mmol/L alpha-ketoglutaric acid, 0.4. mu. mol/L magnesium glycinate.

The following study objects were selected for similar growth of Paeonia suffruticosa (Heterotis rotundifolia (Sm.) Jacq. -F é L.), Rhododendron pseudojulianum (Barleria cristata L.), and Jatropha eucalypti (Jactra integerrima Jacq.), the experiments were performed under a shade degree of 50%, chlorophyll inducers of experimental groups 1 to 9 were sprayed, 100mL of each plant was sprayed once a day, the surface and back of the leaves were fully wetted (CK blank group was sprayed with equal amount of water), the treatments were continuously performed for 3 days, each treatment was repeated 3 times, and the chlorophyll content of each plant was measured on day 4, and the results are shown in Table 2: the chlorophyll inducer can promote the synthesis of phytochlorophyll, particularly the experimental group 5(1mmol/L alpha-ketoglutaric acid and 0.3 mu mol/L magnesium glycinate) has the best effect of improving the chlorophyll content of plants, the chlorophyll contents of staphylia multiflora, rhododendron pseudojujudae and lygorskilfruit are respectively improved by 77%, 75% and 82% compared with the CK group, and the experimental group 1(0.5mmol/L alpha-ketoglutaric acid and 0.2 mu mol/L magnesium glycinate) with the worst effect is also respectively improved by 50%, 52% and 50% compared with the CK group, the staphylia pseudojudae and the lygordont.

TABLE 2 Effect of different chlorophyll inducers on chlorophyll of plants

2. Effect of chlorophyll inducer on chlorophyll of different plants

Selecting close-growing florists (floropsia scandens Lour.), florists (eranthema pulchellum Andrews), junction crabapple (Begonia × elatior), longboat flower (Ixora chinensis Lam.), orchid (liliope cymbio morphhas (fed)), pineapples (riesea marjoram), jasmine (brunflia latifolia (Pohl) Benth), clerodendroa petiolus (clemodendrendornum japonicum (Thunb.), Sweet clover (Sweet), langerhans (ronella lutescens kueh), hydrangea (Pelargonium, Pelargonium hortorum), giraldium roseum (Sweet), rose, sargentglory (Sweet), and papyrium roseum (royal) kuh), hydrangea (zania japonica, Pelargonium hortorum scharenaria), and red Camellia (red Camellia sinensis, yellow tea tree) to be sprayed on the surface of a (Camellia japonica, red Camellia sinensis (c) treated in a test group, and red Camellia sinensis (c) to be sprayed on the surface of the test group of 100% green tea tree, red flower (c. fig. 5, and red flower, respectively, each treatment was repeated 3 times and the chlorophyll content of each plant was measured on day 4, with the results shown in table 3: the chlorophyll inducer of the experimental group 5 can improve the chlorophyll content of different plants, wherein the chlorophyll content is the dragon boat flower with the highest increase, and the increase is 93%; the chlorophyll content of the camellia chrysantha tea with the lowest increment is 55 percent.

TABLE 3 Effect of chlorophyll inducers of Experimental group 5 on chlorophyll content of different plants

3. Effect of chlorophyll inducer application frequency on plant growth

Selecting close-growing florists (floropsis scandens Lour.), florists (eriophynum pulchellum Andrews), Begonia (Begonia × elatior), longboat flowers (Ixora chinensis Lam.), orchids (liliope cymbio morphhas (fed)), pineapples (vreieea poelmani), jasminum (brunfella latifolia (Pohl) Benth), Clerodendrum petasifera (clemendam japonicum (Thunb.) and Sweet clover (Sweet clover), giraldia japonica (ronella lutea kuh), hydrangea (Pelargonium, Pelargonium hortorum), coleus roseum (yellow clover.) and rose, rosewood (ronella lutera), rosewood (ronychia luteola kuh), hydrangea (Pelargonium, Pelargonium hortorum schardium), coleus roseum (roseus comovata, yellow clover. and Camellia sinensis (red clover. F, red clover. and red peony (red clover. c. fig. 3, red clover. c, red clover. fig.: the plants are moved to a place with 50% shading degree, after 5 o' clock every evening, chlorophyll inducer of an experimental group 5 is sprayed on the surface and the back of the leaves of the plants, 100mL of chlorophyll inducer is sprayed on each plant, the surface and the back of the leaves are completely sprayed with moisture (equal amount of water is sprayed on a CK blank control group), and then the plants are planted under a canopy forest and are respectively treated as follows: 100mL water was once sprayed in 15 days to CK blank control group, handle group 1 (once sprayed in 15 days), handle group 2 (1 time sprayed in 30 days), handle group 3 (once sprayed in 45 days), handle group 4 (once sprayed in 60 days), handle group 5 (once sprayed in 75 days), handle group 6 (once handled in 90 days), handle each plant of group spraying 100mL each time, leaf surface and back are all to be sprayed and are moistened, the growth rate of 16 plants is measured respectively after 180 days, and calculate the relative growth value of 16 plants to CK blank control group, the result is as shown in Table 4: with the decrease of the application frequency of the chlorophyll inducer, the growth amounts of different plants are in an increasing trend, in order to further facilitate statistical comparison, the relative growth amount is adopted to calculate (the relative growth value is the growth amount of an experimental group divided by the growth amount of a CK blank control group multiplied by 100%), finally, the comprehensive relative growth values of all treatments are counted, variance comparison difference is carried out, and the result is shown in table 5, although the best inhibition effect can be obtained by spraying the medicament once every 15 days, the medicament is not the optimal choice from the economic viewpoint, no significant difference exists among the experimental groups 2, 3 and 4, and the good inhibition result can be obtained by spraying the medicament once every 60 days in combination with the economic viewpoint, and a large amount of cost is also saved.

TABLE 4 Effect of chlorophyll inducer application frequency on growth of different plants

TABLE 5 Effect of chlorophyll inducer application frequency on relative growth values of different plants versus CK placebo

Note: different lower case letters represent significant differences between the different experimental groups.

Embodiment 3 method for constructing under-forest flower scenery

Constructing the under-forest flower scenery in a closed forest in a Baimu flower yard of an endemic area in Guangzhou city, wherein the closed forest mainly comprises tall camphor treesAnd banyan, the canopy density is more than 90%. The selected plants were pretreated 3 consecutive days before planting: moving the plant to a place with shade degree of 50%, and spraying chlorophyll inducer (alpha-ketoglutaric acid, 0.5mmol/L + magnesium glycinate, 0.2 μmol/L) on the surface and back of plant leaf at 5 o' clock every evening until the surface and back of leaf are completely wetted; weeds, dry branches and fallen leaves and the like in the forest land are removed, soil with the thickness of 10cm on the surface layer is ploughed uniformly, and 3kg of mixed matrix containing decomposed macleaya cordata crushed slag (peat, perlite, vermiculite, decomposed macleaya cordata crushed slag 2:1:1:1, namely the pesticide of the comparative group 1 in the embodiment 1) and calcium hydroxide (15g, namely the pesticide of the comparative group 3 in the embodiment 1) are added into each square meter of soil to be ploughed uniformly together with the surface layer soil; reforming the land according to the forms of low position at the forest edge, high position at the forest and 10 degrees of slope; under the forest, an outer layer landscape zone (0-1.5 m away from the edge of the forest), a middle layer landscape zone (1.5-3 m away from the edge of the forest) and an inner layer landscape zone (3-4 m away from the edge of the forest) are sequentially arranged from the edge of the forest to the forest (schematic diagrams are shown in figures 1 and 2), wherein the vine wild peonies (25 plants per square meter) are planted in the outer layer landscape zone, the rhododendron pulchrum (16 plants per square meter) is planted in the middle layer landscape zone, and the lypterogum serrulatum (4 plants per square meter) is planted in the inner layer landscape zone; the water content of soil is 70-85% according to weather conditions in daily maintenance, spraying chlorophyll inducer (alpha-ketoglutaric acid, 0.5mmol/L + magnesium glycinate, 0.2umol/L) once every 2 months (preferably wetting the surface and back of the leaf), adding decomposed macleaya cordata residue into the soil every 3 months, and ploughing uniformly (2 kg/m)²) In addition, dry branches and fallen leaves were cleaned once a month.

Embodiment 4 method for constructing under-forest flower scenery

Under the canopy forest of Shenzhen guanlan forest park, the flowers and scapes under the forest are built, the canopy forest mainly consists of Ficus microcarpa, and the canopy degree reaches more than 91%. The selected plants were pretreated 3 consecutive days before planting: moving the plant to a place with shade degree of 50%, and spraying chlorophyll inducer (alpha-ketoglutaric acid, 1mmol/L + magnesium glycinate, 0.3 μmol/L) on the surface and back of plant leaf after 5 o' clock every evening until the surface and back of leaf are completely wet; will be in the forest landWeeds, dead branches and fallen leaves and the like are removed, soil with the thickness of 15cm on the surface layer is ploughed uniformly, 3kg of mixed matrix containing decomposed macleaya cordata crushed slag (peat, perlite, vermiculite and decomposed macleaya cordata crushed slag which is 2:1:1:3, namely the pesticide of the comparative group 3 in the example 1) and calcium hydroxide (15g, namely the pesticide of the comparative group 3 in the example 1) are added into each square meter of soil, and the soil on the surface layer is ploughed uniformly; reforming the land according to the forms of low position at the forest edge, high position in the forest and 15 degrees of slope; under the forest, an outer landscape zone (0-1.5 m away from the edge of the forest), a middle landscape zone (1.5-3 m away from the edge of the forest), and an inner landscape zone (3-4 m away from the edge of the forest) are sequentially arranged from the edge of the forest to the forest (the schematic diagrams are shown in fig. 1 and fig. 2), wherein staphyla chinensis, herbaceous peony, herbaceous grass and dragon boat flowers (25 plants are planted per square meter) are planted in the outer landscape zone, pseudoazalea, torch pineapples, mandarin duck jasmine and hydrangea japonica (16 plants per square meter) are planted in the middle landscape zone, and lypteris glauca and rhododendron rosea (4 plants per square meter) are planted in the inner landscape zone. The water content of the soil is guaranteed to be 70-85% according to the weather conditions in daily maintenance, an aqueous solution of a chlorophyll inducer (alpha-ketoglutaric acid, 1mmol/L + magnesium glycinate, 0.3umol/L) is sprayed once every 2 months (preferably the surfaces and the back surfaces of the leaves are all wet), decomposed macleaya cordata crushed slag is added into the soil every 3 months, and the soil is ploughed uniformly (3 kg/m)²) In addition, dry branches and fallen leaves were cleaned once a month.

Comparative example 1 construction method of under-forest flower scene

In the embodiment 3, the under-forest flower scene construction is carried out in the same closured under-forest adjacent plots, and the plants are not pretreated; clearing weeds, dry branches and fallen leaves and the like in the forest land, and then uniformly ploughing the soil with the thickness of 10cm on the surface layer; reforming the terrain according to the modes of low position at the forest edge, high position at the forest and 10 degrees of slope; under the forest, an outer landscape zone, a middle landscape zone and an inner landscape zone are sequentially arranged from the forest edge to the forest, wherein the outer landscape zone is planted with the vine wild peony (25 plants are planted per square meter), the middle landscape zone is planted with the rhododendron pseudosimsii (16 plants are planted per square meter), and the inner landscape zone is planted with the lypterogum japonicum (4 plants are planted per square meter); moisture in daily maintenance guarantees that the water content of the soil is 70-85% according to weather conditions, and dry branches and fallen leaves are cleaned once a month.

Comparative example 2 construction method of under-forest flower scene

In the embodiment 4, the under-forest flower landscape construction is carried out in the same closured under-forest adjacent plots, and the plants are not pretreated; clearing weeds, dry branches and fallen leaves and the like in the forest land, and then uniformly ploughing the soil with the thickness of 15cm on the surface layer; reforming the terrain according to the forms of low position at the forest edge, high position at the forest and 15 degrees of slope; under the forest, an outer landscape zone, a middle landscape zone and an inner landscape zone are sequentially arranged from the forest edge to the forest, wherein on the outer landscape zone, staphylia multiflora, herbaceous flowers, lilac flowers and dragon boat flowers (25 plants are planted per square meter), on the middle landscape zone, rhododendron pseudosimsii, torch pineapples, mandarin duck jasmine and hydrangea aspera (16 plants are planted per square meter), and on the inner landscape zone, lygorskila officinalis and camellia azalea (4 plants are planted per square meter) are planted; moisture in daily maintenance guarantees that the water content of the soil is 70-85% according to weather conditions, and dry branches and fallen leaves are cleaned once a month.

Examples of effects

At the end of the 6 th month of planting, the under-forest flower scenery constructed in the comparative example 1 is unclear in level, unhealthy in plant state, long and thin in internodes, obvious in spindly growth, rare in flowering and incapable of normally flowering by most plants, and leaves of the plants have a large number of insect eating gaps; the chlorophyll content of the stauntonia, the rhododendron pulchrum and the lygorskillaceous coral is 21.344mg/g, 19.736mg/g and 16.438mg/g respectively; the lengths of the overgrowth of the stauntonia, the rhododendron pseudosimsii and the lygodium serrulatum are 94.63cm, 53.56cm and 42.78 cm; 84 worm eggs per cubic decimeter of soil; the under-forest flower scenery constructed in the embodiment 3 is distinct in level and rich and colorful, and the variety of the under-forest flower scenery is improved by 3 times compared with that of a single plant paved with plants; the plant is healthy, has no disease and pest phenomena, has no spindling phenomenon, and flowers normally; the chlorophyll content of the stauntonia elegans, the rhododendron pseudosimsii and the lygodium japonicum is respectively increased by 51 percent, 53 percent and 51 percent compared with the comparative ratio 1; the growth value is respectively reduced by 81 percent, 82 percent and 80 percent compared with the growth value of the flower in the proportion 1, the number of worm eggs in soil per cubic decimeter is reduced by 93 percent compared with the growth value of the flower in the proportion 1, and the under-forest flower scene with good landscape, various species, stable ecology, strong stress resistance and low maintenance cost is formed.

At the end of the 6 th month of planting, the understory flower scenery constructed in the comparative example 2 is disorderly in level, the outer plants shield the inner plants, the aesthetic feeling of the landscape is affected, the plant state is unhealthy, a large number of insect eating gaps appear on leaves, the internodes are slender, the spindly growth is obvious, the flowering is rare, and most plants cannot normally bloom; the chlorophyll content of the wild peony, the polyporus clathratus, the lilac, the dracaena fragrans, the rhododendron, the torch pineapple, the mandarin duck jasmine, the hydrangea, the lygodium japonicum and the camellia azalea is 22.231mg/g, 15.453mg/g, 11.224mg/g, 5.632mg/g, 19.556mg/g, 30.424mg/g, 19.776mg/g, 17.651mg/g, 16.588mg/g and 58.865mg/g respectively; the lengths of the overgrowths of the stauntonia bicolor, the polyporus clathratus, the scirpus, the dracaena fragrans, the rhododendron pseudocuckii, the torch pineapples, the mandarin duck jasmine, the hydrangea, the lygorskicus serrulata and the camellia azalea are 94.63cm, 19.54cm, 28.34cm, 22.45cm, 53.56cm, 11.66cm, 68.33cm, 89.28cm, 42.78cm and 25.46; 91 worm eggs per cubic decimeter of soil; the under-forest flower scenery constructed in the embodiment 4 is distinct in level and rich and colorful, and the variety of the plants is improved by 10 times compared with that of the plants paved by single plants; the plant is healthy, has no disease and pest phenomena, has no spindling phenomenon, and flowers normally; compared with the chlorophyll content of 2, the chlorophyll content of the stauntonia chinensis, the inula polycephala, the sciaenopsis chinensis, the dracaena fragrans, the longboat flower, the rhododendron pseudocuckii, the torch pineapple, the mandarin duck jasmine, the hydrangea, the lygorskira glabra and the azalea red camellia is respectively increased by 77%, 80%, 69%, 93%, 75%, 74%, 78%, 69%, 82% and 55%; compared with the growth value of the camellia japonica in proportion 2 in 6 months, the growth values of the stauntonia chinensis, the polypodium polycephalum, the sciaenopsis ocellata, the dragon boat flower, the rhododendron pseudocuckoo, the torch pineapple, the mandarin duck jasmine, the hydrangea, the lygodium japonicum and the camellia azalea are respectively reduced by 80%, 77%, 78%, 79%, 81%, 80% and 81%; the number of worm eggs per cubic decimeter of soil is reduced by 96 percent compared with the comparative ratio 2, and the under-forest flower scenery with good landscape, various species, stable ecology, strong stress resistance and low maintenance cost is formed.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (13)

1. A composition comprising the following components in parts by weight: 500-2000 parts of macleaya cordata and 10-35 parts of calcium hydroxide;

the macleaya cordata is decomposed macleaya cordata;

the preparation method of the decomposed macleaya cordata comprises the following steps: covering a compost body with macleaya cordata serving as a composting raw material for composting to obtain decomposed macleaya cordata;

controlling the temperature within 30cm of a pile body to be 55-70 ℃ in the composting process;

the composting time is 10-15 days.

2. The composition of claim 1, wherein:

the composition also comprises the following components in parts by weight: 2000-2800 parts of matrix.

3. The composition of claim 2, wherein:

the matrix is at least one of peat, perlite, vermiculite, mushroom residue and sand.

4. The composition of claim 3, wherein:

the composition comprises the following components in parts by weight: 500-2000 parts of macleaya cordata, 10-35 parts of calcium hydroxide, 1000-1400 parts of peat, 500-700 parts of perlite and 500-700 parts of vermiculite.

5. Use of a composition according to any one of claims 1 to 4 in any one of the following a) to b);

a) pest control;

b) and (5) constructing under-forest flower scenes.

6. A method for constructing an under-forest flower scene comprises the following steps:

(1) improving the soil of the forest land: applying the composition of any one of claims 1-4 in woodland soil;

(2) landscape construction: arranging an outer landscape zone, a middle landscape zone and an inner landscape zone in the forest from the forest edge to the forest in sequence under the forest, wherein the outer landscape zone plants the yin-tolerant flowering plants with the height of less than 0.5m, the middle landscape zone plants the yin-tolerant flowering plants with the height of 0.5-1 m, and the inner landscape zone plants the yin-tolerant flowering plants with the height of 1-1.5 m;

the method comprises the following steps of (2) preprocessing before planting the yin-tolerant flowering plants, and comprises the following specific steps: and (3) transferring the yin-tolerant flowering plants to an environment with the shade degree of 50-70%, and spraying a chlorophyll inducer.

7. The construction method according to claim 6, wherein:

the step (1) further comprises the following steps: trimming the forest land to ensure that the height of the forest land gradually decreases from the forest to the edge to form a slope.

8. The construction method according to claim 7, wherein:

the value of the gradient is 10-15 degrees.

9. The construction method according to claim 6, wherein:

in the step (2), the distance between the outer landscape zone and the forest edge is 0-1.5 m;

in the step (2), the distance between the middle landscape zone and the forest edge is 1.5-3 m;

and (3) in the step (2), the distance between the inner landscape zone and the forest edge is more than 3 m.

10. The construction method according to claim 6, wherein:

the yin-tolerant flowering plant with the height of less than 0.5m in the step (2) is at least one of vine wild peony, polyflower grass, common camptotheca herb, Rieger begonia, Longboat flower and Maohuasan;

in the step (2), the yin-tolerant flowering plants with the height of 0.5-1 m are at least one of torch pineapples, rhododendron pulchrum, jasmine mandarin ducks, clerodendrum petasitum, silverleaf randia wood and hydrangea;

the shade-tolerant flowering plant with the height of 1-1.5 m in the step (2) is at least one of schwanderi, azalea red camellia, kerrison and lygordon serrulata.

11. The construction method according to claim 6, wherein:

the planting density of the outer landscape zone in the step (2) is 25-30 plants per square meter;

the planting density of the middle landscape zone in the step (2) is 16-20 plants per square meter;

the planting density of the inner landscape zone in the step (2) is 4-8 plants per square meter.

12. The construction method according to any one of claims 6 to 11, wherein:

the method for constructing the under-forest flower scenery further comprises the following steps:

(3) and (4) daily maintenance: keeping the water content of the soil at 70-85%, spraying a chlorophyll inducer every 15-60 days, and adding macleaya cordata every 2-4 months.

13. The construction method according to claim 12, wherein:

the chlorophyll inducer comprises: alpha-ketoglutaric acid and magnesium glycinate.

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