KR102408956B1 - Cricket feces and Soil conditioner material comprising the same - Google Patents

Abstract

The present invention has a water content of 20 wt% or less, a phosphorus (P) content of 5 wt% or more, a potassium (K) content of 3 to 5 wt%, a calcium (Ca) content of 1 to 3 wt%, and a magnesium (Mg) content. It relates to cricket feces having a content of 2 to 4 wt% and a soil improving material comprising the same, wherein the cricket feces has a content suitable for use as a soil improving material.

Description

Cricket feces and Soil conditioner material comprising the same

The present invention relates to a soil improving material containing cricket feces, and more particularly, to a soil improving material containing cricket feces having a suitable component composition for use as a soil improving material.

Background to the present disclosure is provided herein, which does not necessarily imply known art.

Soil conditioner material is a generic term for organic fertilizers, mineral and inorganic fertilizers, microbial fertilizers, soil conditioners, etc. do.

A soil conditioner is a variety of products used to improve the physical and chemical properties of the soil to be suitable for plant growth. In order to improve the poor chemical properties, bentonite, zeolite, pearlite, vermiculite, etc. are used. In addition, there are ammonium, magnesium, and lime salts, which are humic acids that are chemically treated with peat and peat. Also, compost, manure, rice straw, barley straw, and wild grass have the ability to form granular soil, so it can be said to be a kind of soil improver.

Organic fertilizer is a fertilizer containing fertilizer components in the form of organic compounds, and includes urea, lime nitrogen, compost manure, green manure, vegetable oil meal, fish meal, bone meal, and the like. Organic fertilizers derived from plants and animals contain lime, earth, silicic acid, etc. in addition to the three elements (nitrogen (N), phosphorus (P), and potassium (K)). It improves water retention and increases the capacity of base substitution to improve the retention capacity.

On the other hand, as insects are recognized and utilized as useful biological resources, artificial breeding of insects as a source of income for farms is widely recommended and spread. In particular, as crickets are known for their use for food and medicine, they are often selected as insects for artificial rearing. Conventionally, there exist examples of processing crickets themselves and using them as food, pharmaceutical compositions, feed compositions, and the like. Also, in the case of cricket feed, the development of effective functional feed for improving the productivity of crickets is limited.

1. Korea Patent Publication No. 10-2019-0135740 (2019.12.09) 2. Korean Patent No. 10-2041394 (2019.10.31)

An object of the present invention is to provide cricket feces having a suitable component composition for use as a soil improver, and to provide a soil improver comprising the same.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

The present invention provides cricket feces having a water content of 20 wt% or less, a phosphoric acid content of 5 wt% or more, a potassium content of 3 wt% or more, a calcium (Ca) content of 1 wt% or more, and a magnesium (Mg) content of 2 wt% or more.

In addition, the cricket feces have a moisture content of 10 to 15 wt%, a phosphorus (P) content of 5 to 10 wt%, a potassium (K) content of 3 to 5 wt%, a calcium (Ca) content of 1 to 3 wt%, and magnesium It is characterized in that the content of (Mg) is 2 to 4 wt%.

In addition, the cricket feces is feces obtained by breeding a cricket feed composition as food, and the cricket feed composition is a feed by mixing a heating step for steaming rice bran, a drying step for drying the steamed rice bran, and a bird feed with the dried rice bran. It is characterized in that the composition is prepared including the mixing step to prepare.

In addition, the cricket feces is characterized in that it is feces obtained by rearing crickets at 29 to 34° C. and 40 to 60% humidity using the cricket feed composition as food.

The present invention also provides a soil improving material comprising the cricket feces.

In addition, the soil improving material is characterized in that it is applied to the soil for plant cultivation in a ratio of 1 to 10% by volume.

The feces of crickets according to the present invention can be fertilized without going through a separate fermentation process, and are mixed with the soil before planting or planting plants to increase the germination rate and to be used as a fertilizer to help rooting. When mixed with phosphoric acid, the amount of fertilization can be reduced and it is very helpful for plant growth.

1 shows images of cricket feces according to Examples and Comparative Examples of the present invention.
2 shows images of soil improvers according to Examples and Comparative Examples of the present invention.
3 shows the sowing process using the soil improver according to Examples and Comparative Examples of the present invention.
FIG. 4 shows the results of a germination rate investigation using soil improvers according to Examples and Comparative Examples of the present invention.
5 shows growth images using soil improvers according to Examples and Comparative Examples of the present invention.
6 shows the results of a growth rate (longest length) investigation using soil improvers according to Examples and Comparative Examples of the present invention.
7 shows the results of a growth rate (weight) investigation using the soil improving material according to the Examples and Comparative Examples of the present invention.

All technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art, unless otherwise stated. Also throughout this specification and claims, unless otherwise indicated, the term comprise, comprises, comprising is meant to include the recited object, step or group of objects, and steps, and any other It is not used in the sense of excluding an object, step, or group of objects or groups of steps.

Prior to describing the present invention in detail below, it is to be understood that the terminology used herein is for the purpose of describing specific embodiments and is not intended to limit the scope of the present invention, which is limited only by the appended claims. shall.

On the other hand, various embodiments of the present invention may be combined with any other embodiments unless clearly indicated to the contrary. Any feature indicated as particularly preferred or advantageous may be combined with any other feature and features indicated as preferred or advantageous. Hereinafter, embodiments of the present invention and effects thereof will be described with reference to the accompanying drawings.

Cricket feces according to the present invention have a water content of 20 wt% or less, a phosphorus (P) content of 5 wt% or more, a potassium (K) content of 3 to 5 wt%, a calcium (Ca) content of 1 to 3 wt%, and a magnesium It is characterized in that the content of (Mg) is 2 to 4 wt%.

More specifically, cricket feces according to the present invention have a moisture content of 10 to 15 wt%, a phosphorus (P) content of 5 to 10 wt%, a potassium (K) content of 3 to 5 wt%, and a calcium (Ca) content of 1 to 3wt%, it is characterized in that the content of magnesium (Mg) is 2 to 4wt%.

Cricket feces according to the present invention have a low moisture content, can be fertilized without going through a separate fermentation process, and have a very high phosphorus content. The content of potassium (K), calcium (Ca), and magnesium (Mg) is high, so when mixed with organic matter and phosphoric acid for fertilization, the amount of fertilization can be reduced and it is a great help to plant growth.

The soil improver according to an embodiment of the present invention includes cricket feces having the above composition. The soil improver including the cricket feces is applied to the soil for plant cultivation in a volume ratio of 1 to 10% to provide an excellent germination rate and growth rate. According to an experimental example to be described later, it can be seen that the germination rate of lettuce, radish, chicory, rapeseed, and barley is excellent at 70% to 85% as of 7 days after sowing, and the growth rate is also excellent as of 14 days after sowing.

In order to obtain cricket feces having a composition according to the present invention, a feed composition prepared by a specific method is bred as food, and the method for preparing this feed composition includes a heating step of steaming rice bran (S10), and a drying step of drying the steamed rice bran (S20). ), and a mixing step (S30) of preparing a feed by mixing the algae feed with the dried rice bran. Thereafter, it may further include a storage step (S40) of storing the prepared feed at a low temperature.

The heating step (S10) is a step of steaming rice bran, a first heating step (S11) of steaming at a steaming temperature of 90 to 110° C. for 2 to 3 hours, and turning over the rice bran and steaming at a steaming temperature of 90 to 110° C. for 2 to 3 hours. A second heating step (S12) is included. In this case, the total heating time including the first heating step and the second heating step is preferably 4 hours 30 minutes to 5 hours 30 minutes.

The drying step (S20) is a step of drying the steamed rice bran. After taking out the steamed rice bran from the steamer, hot air of 60 to 70° C. is applied in the shade and drying for 45 to 50 hours.

The mixing step (S30) is a step of preparing a feed by blending the dried rice bran with the algae feed, and the mixing ratio of the dried rice bran and the algae feed is for the algae with respect to 100 parts by weight of the dried rice bran. 10 to 35 parts by weight of the feed are blended. Preferably, it is good to further include 3 to 4.5 parts by weight of petrified husk powder based on 100 parts by weight of the dried rice bran. More preferably, when breeding crickets in summer and autumn (June to November), 10 to 20 parts by weight of the bird feed, 3 to 4 parts by weight of the petrified husk powder, based on 100 parts by weight of the dried rice bran In the case of breeding crickets in spring and winter (December to May), 25 to 35 parts by weight of the bird feed and 3.5 to 4.5 parts by weight of the petrified husk powder are blended with respect to 100 parts by weight of the dried rice bran. good to do

The storage step (S40) is a step of storing the prepared feed at a low temperature, and it is preferable to maintain the storage temperature at 0 to 5°C.

Crickets are reared at room temperature (29 to 34° C.) and 40 to 60% humidity by feeding the feed composition prepared according to the present invention, and cricket feces can be obtained during the breeding process.

The feces of crickets obtained by breeding crickets with the feed composition prepared according to the present invention have a low moisture content of 20 wt% or less (10-15 wt%), and a very high phosphorus content of 5 wt% or more (5-10 wt%). It is mixed with the soil before sowing or planting of plants and is suitable for use as a fertilizer to increase the germination rate and help rooting. Mg) (2-4 wt%) is high, so when mixed with organic matter and phosphoric acid as fertilization, the amount of fertilization can be reduced and it is very helpful for plant growth.

<Example>

A component analysis experiment was conducted to verify whether the feces of crickets raised by feeding the cricket feed composition prepared through the above steps are suitable for use as a soil improver.

The specific method for preparing the cricket feed composition used in the experiment is as follows. Steam the rice bran at 100℃ for 2 hours and 30 minutes, then turn it over and steam for another 2 hours and 30 minutes (total 5 hours). Remove from the steamer and dry in a drying room for 48 hours. After drying, it is blended in a weight ratio of 22 chicken feed, 75 steamed rice bran, and 3 petrified husk powder. After mixing, the feed was stored at a low temperature (maintained at 0°C to 5°C) and then used.

As a comparison group, 100% okara (Comparative Example 1), 75% okara and 25% chicken feed (Comparative Example 2), and 100% general feed (mixed feed such as vegetables) (Comparative Example 3) were used. Except for the type of feed, all Crickets were bred under the same breeding conditions, and the resulting feces were collected and analyzed as follows. The image of cricket feces obtained in FIG. 1 is shown, and the component analysis results are shown in Table 1.

- Analysis agency: Vito Analysis Center Co., Ltd. (Rural Development Administration Fertilizer Testing Research Institute No. 60 and National Agricultural Products Quality Management Institute Organic Agricultural Materials Testing Research Institute No. 47)

- Analysis item: Rural Development Administration fertilizer process standard [compost] item + other fertilizer ingredients

- Quality standards: Fertilizer process standards, compost

Analysis items Quality standards Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Organic matter (%) 30 or more 72.29 68.57 59.83 67.07 Arsenic (mg/kg) 45 or less non-detection non-detection non-detection non-detection Cadmium (mg/kg) 5 or less non-detection non-detection non-detection non-detection Mercury (mg/kg) 2 or less non-detection non-detection non-detection non-detection Lead (mg/kg) 130 or less 3.11 0.99 0.45 1.44 Chromium (mg/kg) 200 or less 1.44 1.35 1.31 1.52 Copper (mg/kg) 360 or less 10.22 17.05 16.14 14.30 Nickel (mg/kg) 45 or less 2.82 2.56 3.05 2.25 Zinc (mg/kg) 900 or less 164.14 68.69 41.91 107.85 E. coli O157:H7 non-detection non-detection non-detection non-detection non-detection Salmonella non-detection non-detection non-detection non-detection non-detection Organic: Nitrogen 45 or less 29.14 24.93 20.99 28.78 salt(%) 2.0 or less 0.30 0.16 1.62 0.90 moisture(%) 55 or less 10.15 21.90 33.62 21.24 Uncookedness (comeback method) Completion of stay Completion of stay Completion of stay Completion of stay Completion of stay Hydrochloric acid insoluble (%) 25 or less 2.28 1.23 0.85 1.51 Total nitrogen (%) - 2.48 2.75 2.85 2.33 Total phosphate (%) - 7.29 3.42 1.11 2.58 Total amount of calories (%) - 3.51 1.96 1.90 2.14 High Earth Total (%) - 2.57 1.22 0.42 0.80 Total amount of lime (%) - 1.24 0.71 0.60 0.94

<Ingredient analysis result>

(1) moisture content

In the case of by-products with a high organic matter content, such as various livestock waste, food waste, and sewage sludge, the purity of the content decreases due to the high moisture content at the time of initial collection. In order to lower the moisture content, it is necessary to heat or mix a material with a low moisture content such as sawdust, which is costly and a factor that reduces the performance of the final product.

In the case of the embodiment, the moisture content is lower than 20 wt%, which is very low compared to other livestock waste, and it is possible to lower the unit price of the product to a low level even compared to the comparative example, and the quality improvement is high.

(2) Various toxic substances and the degree of ripening

Heavy metals, Salmonella, and Escherichia coli satisfy all fertilizer process standards.

Organic matter-to-nitrogen consumption and fermenting degree are numerical values indicating the degree of fermentation. In the case of general livestock manure, the standard for organic matter-to-nitrogen consumption has been raised without going through the fermentation process, and the fermenting degree is in the immature state.

Although the embodiment did not go through the fermentation process, the organic matter-to-nitrogen consumption is below the standard and it is possible to commercialize it without a separate fermentation process in the state of completion of fermentation.

(3) nitrogen (N)

Nitrogen is an element most needed by plants that promotes the physiological process of photosynthesis, and is absorbed in the form of NH ₄ -N and NO ₃ -N and plays a major role in the vegetative growth of plants. Substances such as phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) play an important role in plant germination and rooting, and nitrogen is additionally supplied for rapid growth after plants germinate and take root. It is common to give

The nitrogen content of Examples and Comparative Examples was shown to be similar. The difference in nitrogen content is not meaningful when it is mixed with soil before sowing or planting to increase the germination rate and is used as a fertilizer to help rooting.

(4) phosphoric acid (P ₂ O ₅ )

Phosphoric acid is the main component of the cells constituting the plant, and it affects the growth of the entire plant, and promotes rooting and rooting metabolism, which is the most important in the early stages of planting and transplanting. Phosphoric acid absorbed in the plant moves to the tip of new shoots, the tip of the root, and the seed, where it is actively growing, and is used for cell growth, so it is the most important element for plant germination and rooting. Phosphoric acid, like nitrogen, is not naturally fixed or generated and has low mobility, so it must be mixed with the soil before planting to exert its effect, and when fertilized after planting, the efficiency is very low. In particular, in the case of Korean soil, phosphoric acid is low in phosphoric acid, and phosphoric acid is the limiting factor for plant growth in most cases.

In Example, the phosphoric acid content is 5 wt% or more, and the phosphorus content difference is very high, up to 6.5 times or more, compared to the Comparative Example. The difference in phosphoric acid content has a great meaning when mixed with soil before planting or planting to increase the germination rate and used as a fertilizer to help rooting.

(5) Substituting cations - potassium (K), calcium (Ca), magnesium (Mg)

The cations in the soil (hydrogen, calcium, magnesium, sodium, potassium, etc.) affect the chemical and physical properties of the soil and are essential elements for plant growth as a macroelement for plant growth. The cation is a large amount of element essential for plant growth, and when the soil is insufficient, it is supplied through artificial chemical fertilizer fertilization.

Potassium (K) plays a major role in photosynthesis, carbohydrate synthesis and movement, and nitrogen compound synthesis. Calcium (Ca) is also involved in the activity of other enzymes in addition to forming the cell wall by binding to pectinic acid. It plays an important role in cell elongation and division, and has the effect of improving the physical properties of the soil. Magnesium (Mg) is a component of chlorophyll, and it helps in carbohydrate production through photosynthesis, and in the case of fruit trees, it has effects such as increasing sugar content in magnesium-rich soil.

In Examples, it can be confirmed that potassium (K), calcium (Ca), and magnesium (Mg) all have a higher content than Comparative Examples. Therefore, when cricket feces according to the embodiment are mixed with organic matter and phosphoric acid as fertilization, the amount of fertilization can be reduced and it is judged to be of great help to plant growth.

<Soil improvement material efficacy experiment>

According to the component analysis result, it was confirmed that it was excellent in almost all items such as moisture content, organic matter, phosphoric acid, and potassium, so that it could be used for the purpose of a soil improver or organic fertilizer mixed with the soil. The effect of increasing the germination rate and growth amount was confirmed by sowing crop seeds in the mixed soil (mountain soil) in which cricket feces according to the Example of the present invention and three types of cricket feces according to the comparative example were mixed respectively.

Five kinds of experimentally applied seeds were ① lettuce, ② radish, ③ chicory, ④ rapeseed, and ⑤ barley. Fertilizer was prepared by mixing the cricket fraction in soil (mountain soil) at a volume ratio of 5%. The fertilizer prepared as shown in FIG. 2 was filled in a pot (6 * 6), and as shown in Table 2 below, 25 samples including 3 untreated groups were prepared for a total of 75, each of which 5 seeds for the test were prepared. 30 grains per pot were sown. As shown in FIG. 3, the seeds were irrigated after irrigation in a sufficient amount with a water stopper, and the sown seeds were covered with soil and irrigated from the bottom to the bottom.

The experiment period was from February 05, 2020 to February 20, 2020, sowing 5 days, germination rate measurement on 12 days, and growth amount measurement on 19 days.

A
(Example + Soil) B
(Comparative Example 1 + Soil) C
(Comparative Example 2 + Soil) D
(Comparative Example 3 + Soil) E
(untreated soil) ① Lettuce A-① B-① C-① D-① E-① ② Yeolmu A-② B-② C-② D-② E-② ③ Chicory A-③ B-③ C-③ D-③ E-③ ④ rapeseed A-④ B-④ C-④ D-④ E-④ ⑤ barley A-⑤ B-⑤ C-⑤ D-⑤ E-⑤

<Germination rate and growth rate test results>

(1) Germination rate investigation

One week after sowing, the amount of germination in each treatment group was investigated, and the formula for calculating the germination rate is as follows. The results of the measured germination rates are shown in Tables 3 to 8, and FIG. 4 below.

- Germination rate = (number of germination after one week / number of first sowing) × 100

division sowing
number of seeds after 8 days
number of germination Average germination rate by seed (%) Total germination rate average (%) A
(Example
+soil) ① Lettuce #One 30 25 78.8 77 #2 30 22 #3 30 24 ②Yellow radish #One 30 25 74.4 #2 30 25 #3 30 17 ③ Chicory #One 30 24 84.4 #2 30 27 #3 30 25 ④ rapeseed #One 30 25 72.2 #2 30 24 #3 30 16 ⑤ barley #One 30 19 75.5 #2 30 27 #3 30 22

division sowing
number of seeds after 8 days
number of germination Average germination rate by seed (%) Total germination rate average (%) B
(Comparative Example 1
+soil) ① Lettuce #One 30 18 65.5 63 #2 30 21 #3 30 20 ②Yellow radish #One 30 16 61.1 #2 30 20 #3 30 19 ③ Chicory #One 30 21 66.6 #2 30 17 #3 30 22 ④ rapeseed #One 30 13 51.1 #2 30 23 #3 30 10 ⑤ barley #One 30 21 73.3 #2 30 22 #3 30 23

division sowing
number of seeds after 8 days
number of germination Average germination rate by seed (%) Total germination rate average (%) C
(Comparative Example 2
+soil) ① Lettuce #One 30 20 61.1 55 #2 30 17 #3 30 18 ②Yellow radish #One 30 21 62.2 #2 30 21 #3 30 14 ③ Chicory #One 30 15 53.3 #2 30 16 #3 30 17 ④ rapeseed #One 30 7 34.4 #2 30 14 #3 30 10 ⑤ barley #One 30 23 64.4 #2 30 12 #3 30 23

division sowing
number of seeds after 8 days
number of germination Average germination rate by seed (%) Total germination rate average (%) D
(Comparative Example 3
+soil) ① Lettuce #One 30 25 72.2 65 #2 30 16 #3 30 24 ②Yellow radish #One 30 19 64.4 #2 30 21 #3 30 18 ③ Chicory #One 30 16 70.0 #2 30 21 #3 30 26 ④ rapeseed #One 30 15 52.2 #2 30 16 #3 30 16 ⑤ barley #One 30 21 71.1 #2 30 22 #3 30 21

division sowing
number of seeds after 8 days
number of germination Average germination rate by seed (%) Total germination rate average (%) E
(No processing
soil) ① Lettuce #One 30 19 56.6 51 #2 30 16 #3 30 16 ②Yellow radish #One 30 20 65.5 #2 30 21 #3 30 18 ③ Chicory #One 30 12 50.0 #2 30 20 #3 30 13 ④ rapeseed #One 30 6 26.6 #2 30 10 #3 30 8 ⑤ barley #One 30 19 56.6 #2 30 22 #3 30 10

A
(Example + Soil) B
(Comparative Example 1 + Soil) C
(Comparative Example 2 + Soil) D
(Comparative Example 3 + Soil) E
(untreated soil) ① Lettuce 78.8 65.5 61.1 72.2 56.6 ②Yellow radish 74.4 61.1 62.2 64.4 65.5 ③ Chicory 84.4 66.6 53.3 70.0 50.0 ④ rapeseed 72.2 51.1 34.4 52.2 26.6 ⑤ barley 75.5 73.3 64.4 71.1 56.6 5 average 77.1±2.9 63.6±3.2 55.1±4.0 66.0±3.1 51.1±4.4

The results of the germination rate investigation 7 days after sowing showed the average germination rates of 5 seeds A (Example + Soil) 77%, B (Comparative Example 1 + Soil) 64%, C (Comparative Example 2 + Soil) 55%, D (Comparative Example) 3+soil) 66% and E (untreated soil) 51%.

The A (Example + Soil) treatment showed a significant difference in the higher germination rate than other treatments, confirming that the cricket feces according to the present invention had an effect on germination, and 12% compared to the D (Comparative Example 3 + Soil) treatment. high, and the ratio of the lowest E (untreated soil) treatment group was 26% higher.

(2) Investigation of growth

After 14 days of sowing, the germinated plant was separated from the pot and washed with water. For length measurement, the longest length (above ground + underground) was measured, and weight measurement was measured after drying at room temperature. The image of the growth state after 14 days of seeding is shown in FIG. 5, and the results of the measured growth are shown in Tables 9 to 15, and FIGS. 6 and 7 below.

division longest length
(cm) Average (cm) weight
(mg) Average (g) by seed all by seed all A
(Example
+soil) ① Lettuce #One 15.5 15.3 23.1 0.371 0.351 2.064 #2 16.2 0.322 #3 14.3 0.361 ②Yellow radish #One 27.5 28.9 6.952 6.153 #2 29.1 6.615 #3 30.2 4.892 ③ Chicory #One 14.1 13.3 0.079 0.086 #2 12.3 0.095 #3 13.6 0.083 ④ rapeseed #One 18.3 18.2 0.302 0.279 #2 16.5 0.311 #3 19.9 0.225 ⑤ barley #One 37.8 39.9 3.370 3.450 #2 41.5 3.568 #3 40.3 3.412

division longest length
(cm) Average (cm) weight
(mg) Average (g) by seed all by seed all B
(Comparative Example 1
+soil) ① Lettuce #One 11.5 10.3 17.3 0.256 0.261 1.392 #2 9.2 0.285 #3 10.1 0.241 ②Yellow radish #One 21.5 21.8 3.712 4.126 #2 20.8 4.419 #3 23.2 4.246 ③ Chicory #One 9.5 10.1 0.062 0.064 #2 10.8 0.059 #3 10.1 0.071 ④ rapeseed #One 12.3 11.5 0.056 0.074 #2 10.5 0.118 #3 11.8 0.049 ⑤ barley #One 33.5 32.5 2.359 2.435 #2 32.9 2.435 #3 31.2 2.512

division longest length
(cm) Average (cm) weight
(mg) Average (g) by seed all by seed all C
(Comparative Example 2
+soil) ① Lettuce #One 10.6 10.0 16.9 0.266 0.255 1.168 #2 8.7 0.251 #3 10.7 0.248 ②Yellow radish #One 20.5 20.4 3.925 3.123 #2 19.6 3.121 #3 21.1 2.324 ③ Chicory #One 11.2 16.6 0.060 0.067 #2 9.6 0.072 #3 10.9 0.068 ④ rapeseed #One 13.2 11.9 0.042 0.054 #2 10.2 0.067 #3 12.3 0.053 ⑤ barley #One 32.6 31.4 2.398 2.339 #2 29.8 2.214 #3 31.8 2.405

division longest length
(cm) Average (cm) weight
(mg) Average (g) by seed all by seed all C
(Comparative Example 3
+soil) ① Lettuce #One 11.8 12.5 17.2 0.251 0.223 1.436 #2 12.1 0.156 #3 13.5 0.262 ②Yellow radish #One 22.8 21.1 4.216 4.296 #2 21.7 4.324 #3 18.9 4.347 ③ Chicory #One 11.8 10.2 0.062 0.073 #2 8.1 0.075 #3 10.7 0.083 ④ rapeseed #One 13.3 12.9 0.072 0.097 #2 13.7 0.086 #3 11.6 0.132 ⑤ barley #One 28.2 29.1 2.426 2.492 #2 27.6 2.568 #3 31.5 2.483

division longest length
(cm) Average (cm) weight
(mg) Average (g) by seed all by seed all E
(untreated soil) ① Lettuce #One 11.6 11.6 15.6 0.215 0.189 1.122 #2 13.8 0.123 #3 9.5 0.229 ②Yellow radish #One 20.6 21.0 3.116 2.940 #2 22.7 3.845 #3 19.8 1.858 ③ Chicory #One 8.3 9.0 0.042 0.053 #2 10.2 0.069 #3 8.5 0.048 ④ rapeseed #One 9.2 9.5 0.033 0.037 #2 10.5 0.048 #3 8.9 0.029 ⑤ barley #One 32.3 26.9 2.387 2.394 #2 25.4 2.526 #3 23.1 2.268

A (Example + Soil) B (Comparative Example 1 + Soil) C (Comparative Example 2 + Soil) D (Comparative Example 3 + Soil) E (untreated soil) ① Lettuce 15.3±0.6 10.3±0.7 10.0±0.7 12.5±0.5 11.6±1.2 ②Yellow radish 28.9±0.8 21.8±0.7 20.4±0.4 21.1±1.2 21.0±0.9 ③ Chicory 13.3±0.5 10.1±0.4 10.6±0.5 10.2±1.1 9.0±0.6 ④ rapeseed 18.2±1.0 11.5±0.5 11.9±0.9 12.9±0.6 9.5±0.5 ⑤ barley 39.9±1.1 32.5±0.7 31.4±0.8 29.1±1.2 26.9±2.8

A (Example + Soil) B (Comparative Example 1 + Soil) C (Comparative Example 2 + Soil) D (Comparative Example 3 + Soil) E (untreated soil) ① Lettuce 0.351±0.015 0.261±0.013 0.255±0.006 0.223±0.034 0.189±0.033 ②Yellow radish 6.153±0.638 4.126±0.213 3.123±0.462 4.296±0.040 2.940±0.580 ③ Chicory 0.086±0.005 0.064±0.004 0.067±0.004 0.073±0.006 0.053±0.008 ④ rapeseed 0.279±0.027 0.074±0.022 0.054±0.007 0.097±0.018 0.037±0.006 ⑤ barley 3.450±0.060 2.435±0.044 2.339±0.063 2.492±0.041 2.394±0.075

As a result of the growth rate survey 14 days after sowing, the longest average length A (Example + soil) of the 5 seeds was 23.1 cm, which was the longest plant (ground + underground) length compared to all other treatment groups, and B (Comparative Example 1 + soil) ) 17.3cm, D (Comparative Example 3+soil) 17.2cm, C (Comparative Example 2+soil) 16.9cm, and E (Untreated soil) 15.6cm in the order of growth differences were confirmed.

In addition, the weight of A (Example + soil) was 2.064 g, and the weight of the plant was the largest compared to all other treatment groups, D (Comparative Example 3 + Soil) 1.436 g, B (Comparative Example 1 + Soil) 1.392 g, C ( Comparative Example 2 + soil) 1.168 g, E (untreated soil) 1.122 g, the difference in growth amount was confirmed.

Features, structures, effects, etc. exemplified in each of the above-described embodiments may be combined or modified for other embodiments by those of ordinary skill in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

Claims (6)

As cricket feces obtained by breeding a cricket feed composition as food,
The cricket feed composition is a composition prepared including a heating step of steaming rice bran, a drying step of drying the steamed rice bran, and a mixing step of preparing a feed by mixing the dried rice bran with a feed for birds,
The cricket feces are feces obtained by rearing crickets at a temperature of 29 to 34° C. and a humidity of 40 to 60% by using the cricket feed composition as food,
The cricket feces have a moisture content of 10.15%, a total amount of phosphoric acid of 7.29%, a total amount of potassium 3.51%, a total amount of lime 1.24%, and a total amount of high soil cricket feces for soil improvement material of 2.57%.
delete delete delete A soil improving material comprising the cricket feces according to the first aspect.
6. The method of claim 5,
The soil improver is a soil improver, characterized in that applied to the soil for plant cultivation in a ratio of 1 to 10% by volume.

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