KR100664737B1 - Yield increase and quality improvement of agricultural products by rare earth fertilizer - Google Patents

Abstract

The present invention relates to a method of diluting a fertilizer consisting of rare earth elements in a feed crop to water at a concentration of 20 ppm or 800 ppm, and to a method for using fruit trees, vegetables or rice, and in particular, the rare earth fertilizer of the present invention. When applied to feed crops, the yield and feed rate of feed crop seeds are increased to increase the yield of feed crops, and also to promote the growth and quality of fruit trees, vegetables or rice. Rare earth is universally present in nature and has the effect of increasing disease resistance and environmental resistance, pesticide residues and nitrates, which makes it possible to cultivate crops stably against pesticides and to improve the quality of crops without fear of soil pollution such as chemical fertilizers. Improved and increased yields allow easy utilization of crops.

Rare earth, fodder crops, fruit trees, vegetables, rice, fertilizer

Description

A method improving productivity and quality of agricultural products using by rare earth fertilizer}

The present invention relates to a method of increasing the yield of feed crops by diluting fertilizers of rare earth elements with water at a concentration of 20 ppm or 800 ppm for feed crops. The present invention also relates to a use method of diluting a fertilizer consisting of rare earth elements in 600-1300 times of water and spraying it on fruit trees, vegetables or rice to improve the yield and quality of agricultural products.

Fertilizers help maintain or enhance soil productivity, improve the physical chemistry of soils, even if they are not directly nutrients to soils or plants to grow crops, and improve useful microorganisms. In other words, it refers to a substance that helps indirectly grow crops, such as converting nutrients in a form that cannot be used in plants in the soil to a form that can be used or reducing toxicity of toxic substances.

As interest in the environment and health has increased recently, the production of agricultural products by eco-friendly farming methods has recently been expanding. Increasing demand for safe agricultural products and the tightening international regulations on agri-environment will lead to eco-friendly agriculture. Recently, as interest in rare earths has increased among various eco-friendly farming methods, research on the production of eco-friendly agricultural products by rare earths has been carried out in livestock and feed crops. It is active throughout agriculture, including vegetables, fruit trees and seed crops.

Rare earth elements (REE) are 15 lanthanides elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy) from atomic number 57 to 71 of the periodic table of the elements. , Ho, Er, Tm, Yb, Lu), and the total 17 elements of the atomic number 21 Scandium (Sc) and 39 Yterium (Y). Rare earth elements are commonly present in nature. Soil contains 0.015 to 0.025%, and traces of water, air and animals and plants (0.002 to 0.057%) are also very small. Recently, rare earths are generally used as materials in the fields of catalysts, magnets, metallurgy, glass and ceramics, electronic technology or superconductors, but researches are actively conducted in conjunction with agriculture, but the results are not remarkable yet.

The present inventors have completed the present invention by confirming that the fertilizer consisting of rare earth elements on the feed crops, fruit trees, vegetables or rice, have an excellent effect on growth, yield, quality improvement, etc. for feed crops.

It is an object of the present invention to provide a method of increasing the yield of feed crops by diluting fertilizers of rare earth elements in water and using them at a concentration of 20 ppm or 800 ppm. In addition, to provide a method of improving the yield and quality of agricultural products by diluting the fertilizer consisting of rare earth elements in 600-1300 times of water and sprayed on fruit trees, vegetables or rice.

In order to achieve the above object, the present invention provides a method for increasing the yield of feed crops by using a fertilizer consisting of rare earth elements for feed crops by diluting in water to a concentration of 20ppm or 800ppm.

The feed crops include corn, sorghum, Italian lygras, Sudangrass and the like.

In addition, the present invention provides a method for improving the yield and quality of agricultural products by diluting the fertilizer consisting of rare earth elements in 600-1300 times of water to spray on fruit trees, vegetables or rice.

The rare earth element includes one or more elements selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, and Y it means.

Hereinafter, the present invention will be described in detail.

The present invention is a method of increasing the yield of feed crops by diluting the fertilizer consisting of rare earth elements to water at a concentration of 20ppm or 800ppm for feed crops, and when spraying the feed crops, root treatment and sleep treatment. , Foliar treatment, etc., and soak the seeds of the feed crop in the fertilizer dilution solution and then soak the seeds in the soil. Only the fertilizer of the present invention can be used, it can be used with a general fertilizer.

The rare earth elements are 15 kinds of lanthanide elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb) from atomic number 57 to 71 of the periodic table of the elements. , Lu), scandium (Sc) with atomic number 21, and iterium (Y) with atomic number 39, means one or more elements selected from the group consisting of.

The feed crop is a cultivated crop for feeding livestock, has high nutritional value, good palatability, and high yield per unit area. The species is about 400 species, and is generally classified into grasses, green crops, and root vegetables. have. Herbs include orchards such as Orchardgrass, Italian Ryegrass, Sudangrass, Timothy, Tolsquescuis, and Redtop, as well as soybeans and grasses such as grasses, red clover, white clover, al-palfer, and hair lybech. Edible crops such as corn, green sorghum, green buckwheat rye, green stalk beans, etc., and root vegetables include feed beets, feed turnips, and the like. The fertilizer of the present invention can be used for all the feed crops, preferably corn, sorghum, Italian grass, Sudangrass and the like.

In addition, the present invention provides a use method of improving the yield and quality of agricultural products by diluting the fertilizer consisting of rare earth elements in 600-1300 times of water to spray on fruit trees, vegetables or rice.

Hereinafter, the present invention will be described in detail by the following Examples and Experimental Examples. However, the following Examples and Experimental Examples are examples of the present invention, and the scope of the present invention is not limited thereto.

Example 1 Preparation of Fertilizer Including Rare Earth Elements

Rare earth raw materials were diluted in water to prepare 20, 50, 100, 300, 800, 1000, 1300 ppm concentration.

Experimental Example 1. Effect on the appearance of feed crops

Corn and Italian lygrase seeds were soaked for 6 hours in a rare earth 0, 50, 100, 300, 500, and 800 ppm solution prepared in Example 1 on November 12, 2001 in Chonbuk National University, and then at room temperature. The shade was used for the experiment. Vermiculite was seeded in 4 repetitions per plant in 20 cm diameter Petri dishes filled with 2 cm deep, and then covered with 1 cm deep and pressed firmly. Moisture was supplied in sufficient amount to germinate, and supplemented every two to three days. By examining the number of individuals appeared at a certain time every day, the logistic model of Hsu et al. (1984) was applied to calculate the appearance power of feed crops using Equations 1 and 2 below. CER of Equation 1 is Cumulative Emergence Percentage, and ER is Emergence Rate.

As a result of the experiment, as shown in Table 1 and Table 2, the appearance rate of corn was improved 4.9% in rare earth 300ppm, and the maximum emergence rate was 37.3% in 8.1 in 300ppm treated area compared with 5.9 (p < 0.01). The number of days reaching 50% of the total appearance rate was shortened by 0.4 days by rare earth treatment. By treating 300 ppm of rare earth in corn seeds, many seeds appeared in a short time and the number of days required for emergence was also shortened.

In the case of Italian Ryegrass seeds, the total appearance rate was 11.6% and the appearance rate was improved by 9.5% at the rare earth concentration of 800ppm.

Effect of Rare Earth Concentrations on the Emergence of Corn Rare Earth Concentration Gross prevalence Appearance speed Maximum emergence speed Days to reach 50% of gross prevalence 0 ppm 97.5 16.2 ^b 5.9 ^b 5.7 ^c 50 ppm 96.0 16.6 ^ab 7.3 ^a 5.3 ^a 100 ppm 95.0 16.5 ^ab 7.3 ^a 5.3 ^a 300 ppm 97.5 17.0 ^a 8.1 ^a 5.3 ^a 500 ppm 97.0 16.6 ^ab 7.9 ^a 5.5 ^b 800 ppm 96.5 16.5 ^ab 8.1 ^a 5.4 ^ab

Effect of Rare Earth Concentration on the Occurrence of Italian Ligragrass Rare Earth Concentration Gross prevalence Appearance speed Maximum emergence speed Days to reach 50% of gross prevalence 0 ppm 47.5 ^ab 8.4 ^ab 4.9 5.0 50 ppm 49.5 ^ab 8.7 ^ab 4.7 4.9 100 ppm 50.0 ^ab 8.9 ^ab 5.4 5.0 300 ppm 41.5 ^b 7.4 ^b 4.3 5.0 500 ppm 46.0 ^ab 8.0 ^ab 4.4 5.1 800 ppm 53.0 ^a 9.2 ^a 4.9 5.1

Experimental Example 2. Effect on the yield of feed crops

Corn, sorghum, and Italian lygras seeds were sown on April 6, 2002, and seedlings settled were transplanted on May 1, and nutrient-cultivated. The nutrient solution cultivation (DFT method) using Lincoln solution, the solution composition is shown in Table 3. 4 repetitions for each species, 8 weeks per repetition was arranged by cultivation method. Rare earth 0, 20, 50, 100, 300, 800ppm solution prepared in Example 1 was harvested on June 17 by foliar spray on May 4 and May 22, respectively.

Composition of Solution Components in Nutrient Solution Cultivation (mg / l) pH CF NH4-N NH3-N P S K Mg Ca Cl B Cu Fe Mn Mo Zn 6.5 21 97 194 46 90 303 32 274 333 0.5 0.04 3.0 0.5 0.01 0.25

As a result of the experiment, as shown in Tables 4 to 6 below, the growth of the ground and underground parts of corn was greatly improved, and the best results were obtained when the rare earth concentration was 300 ppm, and the corn ground and underground parts were treated with 300 ppm. Growth rate of the building increased 25.9% and 79.5%, respectively, compared to the untreated area, and it was confirmed that the growth of the underground part was significantly improved compared to the ground part (see Table 4).

In the case of Sudangrass, as the rare earth concentration increased, the growth was the highest at 800 ppm. The 800 ppm treatment resulted in 64.8% and 138.9% improvement in the ground and underground buildings of Sudangrass, respectively. Statistical significance was also found to be very high (p <0.001).

In the case of Italian lygras, the rare earth treatment effect was not as remarkable as that of corn and sudangrass, but the rare earth 300ppm treatment improved 48.8% in the above-ground buildings and 21.4% in the underground. As a result of the synthesis of the above results, the growth of the subterranean portion of the corn and Sudangrass due to the rare earths significantly improved than the ground portion, it was confirmed that the growth of the ground portion than the underground portion in the case of Italian Ryegrass.

Effect of Rare Earth Concentration on Corn Yield Rare Earth Concentration Ground quantity (g / aeration) Underground water quantity (g / aeration) Live weight Building Live weight Building 0 ppm 16.4 ± 2.52 ^d 2.16 ± 0.39 ^b 13.1 ± 2.79 ^c 1.27 ± 0.25 ^c 20 ppm 19.0 ± 1.54 ^cd 2.61 ± 0.20 ^b 14.1 ± 1.29 ^c 1.34 ± 0.17 ^bc 50 ppm 21.3 ± 3.08 ^bc 2.63 ± 0.39 ^b 17.40 ± 2.32 ^bc 1.61 ± 0.19 ^bc 100 ppm 26.8 ± 3.69 ^a 2.68 ± 0.53 ^a 17.58 ± 2.71 ^bc 1.73 ± 0.28 ^b 300 ppm 27.0 ± 3.41 ^a 2.72 ± 0.41 ^a 22.0 ± 4.76 ^a 2.28 ± 0.52 ^a 800 ppm 25.2 ± 3.73 ^ab 3.66 ± 0.55 ^a 19.2 ± 1.68 ^ab 1.78 ± 0.22 ^b

Effect on Yield of Sorghum by Rare Earth Concentration Rare Earth Concentration Ground quantity (g / aeration) Underground water quantity (g / aeration) Live weight Building Live weight Building 0 ppm 5.75 ± 1.54 ^b 0.54 ± 0.04 ^c 4.43 ± 0.74 ^cd 0.18 ± 0.06 ^b 20 ppm 7.20 ± 1.72 ^ab 0.75 ± 0.10 ^b 4.13 ± 0.48 ^d 0.21 ± 0.03 ^b 50 ppm 7.83 ± 1.46 ^a 0.77 ± 0.05 ^b 4.50 ± 0.70 ^cd 0.24 ± 0.05 ^b 100 ppm 8.18 ± 0.33 ^a 0.80 ± 0.13 ^ab 5.30 ± 0.77 ^bc 0.25 ± 0.06 ^b 300 ppm 8.43 ± 1.36 ^a 0.83 ± 0.03 ^ab 5.83 ± 0.62 ^b 0.26 ± 0.07 ^b 800 ppm 9.05 ± 0.24 ^a 0.89 ± 0.04 ^a 8.30 ± 0.79 ^a 0.43 ± 0.09 ^a

Effect of Rare Earth Concentration on Yield of Italian Ligragrass Rare Earth Concentration Ground quantity (g / aeration) Underground water quantity (g / aeration) Live weight Building Live weight Building 0 ppm 2.58 ± 0.17 0.43 ± 0.02 1.63 ± 0.10 ^c 0.14 ± 0.01 20 ppm 3.18 ± 0.95 0.46 ± 0.26 2.05 ± 0.66 ^abc 0.15 ± 0.03 50 ppm 3.25 ± 1.38 0.51 ± 0.20 2.25 ± 0.56 ^abc 0.15 ± 0.04 100 ppm 3.53 ± 1.20 0.56 ± 0.21 2.48 ± 0.29 ^ab 0.16 ± 0.03 300 ppm 3.88 ± 0.76 0.64 ± 0.07 2.63 ± 0.22 ^a 0.17 ± 0.04 800 ppm 2.85 ± 0.74 0.48 ± 0.13 1.83 ± 0.54 ^bc 0.15 ± 0.04

Experimental Example 3. Effect on Growth and Quality of Apples

In the apple farm in Dogye-ri, Ipyeong-myeon, Jeongeup-si, Jeollabuk-do, the control was not treated with the rare earth fertilizer and the rare earth fertilizer treated with the rare earth fertilizer prepared in Example 1 by 1,000 pyeong per treatment. Apple varieties are rare (early varieties), and rare earth (Dongsung NC City, Jeonbuk Jeongeup) application is 1,000 times of rare earth on April 15, 2003, 800 times on June 7, and 600 times on August 8. Leaf spraying was observed to influence the growth and quality of apples.

Apple skin color was measured in the range of red to green and +70 to -70 using a color difference meter (NR-1, Nippon, Denshoku). The glucose content was measured using a Hand Refractometer (Atago N-1α, Japan) and the leaf thickness was measured using a Digimatic Caliper (Mitutoyo, Japan).

As a result of the above experiment, in the group treated with the rare earth fertilizer of the present invention, as shown in Table 7, the width and length of the apple leaves were increased, and the thickness of the leaves was 0.41 mm of the control without the rare earth fertilizer of the present invention. The rare earth treated area was 0.45mm thicker than 9.8%. The leaves weighed 14.3% heavier with rare earths, making them a favorable condition for photosynthesis. In addition, as shown in Table 8, the average apple weight per control was 173.6 g, and the rare earth treatment was 189.3 g, which was 9.3% heavier. In addition, the hardness of the apples increased with the rare earth treatment, which improved the taste and shelf life and increased the sugar content by 22.3%. The redness of apple skin color was 31.5 in rare earth treated area compared to 21.8 of control, so the color of apple became redder and clearer.

Effect of Rare Earth Fertilizer on Leaf Width, Leaf Length, Leaf Thickness and Leaf Weight of Apples leaf Control Rare Earth Treatment Zone  Lobe Width (cm) 4.81 ± 0.51 4.93 ± 0.85  Leaf length (cm) 8.68 ± 0.74 9.01 ± 0.85  Leaf thickness (mm) 0.41 ± 0.03 ^b 0.45 ± 0.03 ^a  Weight (g / leaf) 0.77 ± 0.04 ^b 0.88 ± 0.06 ^a

Effect of Rare Earth Fertilizer on the Quality of Apples And thread Control Rare Earth Treatment Zone Weight (g / piece) 173.6 ± 22.8b ^** 189.3 ± 21.4 ^a Hardness (g / cm ² ) 894.7 ± 25.4 ^b 941.0 ± 28.5 ^a Sugar (Brix%) 11.2 ± 0.41 ^b 13.7 ± 1.02 ^a Color Difference * (Red) 21.8 ± 3.69 ^b 31.5 ± 6.94 ^a

Experimental Example 4. Effect on the growth and quality of cherry tomato

Cherry tomatoes (var. Cocculi) seedlings purchased from the Canaan Frog, Jangsu-gun, Jeonbuk, were formally packaged on April 6, 2004 in a plastic house packaging at 3ga, Hoseong-dong, Jeonju-si, Jeonbuk-si. At the interval of 35cm in circumference and 50cm in width, the control and rare earth treatments were divided into 4 repetitions per treatment and 12 weeks per repetition. As farm practices, fertilization management and geodetic removal were performed. One-time spraying of rare earth fertilizers spread 1,300 times of rare earth (Dongsung NC City, Jeongeup, Jeonbuk) on April 6, 2004, and 2 times and 3 times of 1,000 times on April 21 and May 10, respectively. Foliar sprayed. Water was supplemented by observing soil moisture conditions, with primary harvesting on June 14 and secondary harvesting on June 28. The thickness of the leaves and stems of the harvested cherry tomatoes was measured using Digimatic Caliper (Mitutoyo, Japan), and the sugar content of the cherry tomatoes was measured using a Hand Refractometer (Atago N-1α, Japan), while the hardness of the cherry tomatoes was Fudoh Rheo Meter (Rheotech). , Japan) was used to measure the hardness of the pulp.

As a result of the experiment, as shown in Table 9, the result of treatment of the rare earth fertilizer of the present invention in cherry tomatoes, the average intercution length was shortened, the height of the first and second flower diameters was lowered, the diameter of the stem was larger and the leaves This thickening was confirmed. In addition, as shown in Table 10 below, the rare earth treatment increased the fruit yield of cherry tomatoes and increased the yield. Harvesting fruit of the first flower garden was increased by 24% in rare earths and 21% in yield. Similarly in the second flower garden, rare earth treatments significantly increased the yields and yields (p <0.01). In the total yield per plant, the rare earth treatment was increased by about 19% of the yield compared to the control. The rare earth fertilizer of the present invention was confirmed to increase the yield of cherry tomatoes by affecting the growth of cherry tomatoes.

As shown in Table 11 below, the average weight of the cherry tomatoes (1 overweight) was 9.66 g in the control, while the rare earth treated was 10.24 g, which was about 6% heavier. Rare earth treatment increased the sugar content of the tomato, fruit hardness was also significantly increased (p <0.01) was confirmed that the rare earth fertilizer of the present invention improves the quality of cherry tomatoes.

Effect of Rare Earth Fertilizer on Growth of Cherry Tomato process Average cutting length (cm) Height of the first painting room (cm) 2nd height (cm) Stem Diameter (cm) Leaf thickness (mm) Control 5.59 17.7 49.4 11.3b * 0.45 Rare Earth Treatment Zone 5.37 16.1 48.4 12.5a 0.48

Effect of Rare Earth Fertilizer on Yield of Cherry Tomato process The first painting room 2nd painting Total fruit quantity (g / plant) Harvest fruit Gross weight (g) Harvest fruit Gross weight (g) Control 12.1b ^* 135.6 ^b 17.9 ^b 198.9 ^b 1,271 Rare Earth Treatment Zone 15.0 ^a 164.2 ^a 20.8 ^a 244.6 ^a 1,514

Effect of Rare Earth Fertilizer on the Quality of Cherry Tomato process 1 fruit (g / piece) Sugar (Brix,%) Hardness (g / cm2) Control 9.66 5.54b ^* 803 ^b Rare Earth Treatment Zone 10.24 5.80 ^a 934 ^a

Experimental Example 5. Effects on Rice Growth and Yield

In order to observe the effect of the rare earth fertilizer of the present invention on the growth and yield of rice was carried out the following experiment.

On June 12, 2003, a mixed fertilizer having an NPK ratio of 23-9-14 was added to 1,200 pyeong each of the control group not treated with the rare earth fertilizer and rare earth fertilizer treated with the present invention. It was planted on June 14 and planted (variety name: Miryang 142). On June 21, 20 kg of urea fertilizer was sprayed with a manure fertilizer and 10 kg of compound fertilizer (18-0-16) was fertilized with ear manure on 5 August. The rare earth 1,000 times liquid prepared in Example 1 was foliarly sprayed three times on July 20, August 20, and September 18.

In order to measure the chlorophyll content of rice leaves, 1 g of raw grass was extracted with 20 ml of 80% ethyl alcohol, and 80% acetone was added to the chlorophyll-a and b at 663 and 645 nm using UV Visible Spectrophotometer (Pharmacia Biotech, England). (Agrotechnical method, 1975) Calculated by Bruinsma method (1961). In order to measure nitrogen nitrate, Paul and Carlson method (1968) was modified and analyzed. 500 mg of 40-mesh sample dried at 65 ° C. was added to 100 ml of ionized water for 1 minute, and then mixed with 4 g of activated carbon and filtered well. Add 1 Nitraver 5 Nitrate Reagent Power Pillow to 25 ml of the filtrate, immediately close the lid, shake it for exactly 1 minute, measure the mV value with the nitrate electrode of NeoMet Ion Meter (Multi-Analyzer, Istek Inc.), and then use the semi-logarithmic graph. The nitrogen nitrate content was calculated.

As a result of the above experiment, as shown in Table 12, the leaf thickness is 0.626 mm in the thickness of the rare earth treated group compared to the control 0.534 mm, and when the rare earth fertilizer of the present invention is treated, the leaf becomes thick, and the leaf width and the leaf length are also rare earth treated. It can be confirmed that the significantly increased. The stem and ear diameter of rice grew slightly, but there was no statistical significance. In addition, as shown in Table 13, the anti-recoverability of the control group 355.4, 436.9g rare earth treatment was confirmed that the rare earth treatment treated with the rare earth fertilizer of the present invention 22.9% more resistant to dobok.

In the case of chlorophyll content and nitrate nitrate content of rice leaves, as shown in Table 14, the chlorophyll content of the control and the rare earth treatments were 9.7 and 12.2 ㎍ / ml, respectively, and it was confirmed that the rare earth fertilizer treatment of the present invention was increased by 25.8%. , Nitrogen nitrate was found to be reduced by 31.8% compared to the control by the rare earth fertilizer treatment of the present invention. On the other hand, as shown in Table 15, the average purified water per ear was 118.2 rare earths compared to 105.7 control, the effective number of grains was 13.2 per abandonment and 15.3 rare earths. On the other hand, the number of invalid powders per abandonment was 0.9, but the rare earths were 0.3. As a result of the rare earth fertilizer treatment of the present invention, it was found that the nutrients were effectively used for the generation of effective powders and in crude production. In the crude production per Danbo, it was confirmed that the increase of about 15% was achieved with 860kg of rare earth treatment compared to 750kg of control.

Effect of Rare Earth Fertilizer on the Size of Rice Leaves Survey item Control Rare Earth Treatment Zone Leaf thickness (mm) 0.534 ± 0.12 ^b 0.626 ± 0.14 ^a Leaf width (cm) 13.7 ± 1.52 ^b 16.1 ± 1.20 ^a Leaf length (cm) 26.2 ± 3.81 ^b 28.2 ± 3.86 ^a

Effect of Rare Earth Fertilizer on Rice Tolerance Survey item Control Rare Earth Treatment Zone Stem diameter (mm) 5.01 ± 0.57 5.04 ± 0.62 Ear diameter (mm) 1.50 ± 0.24 1.59 ± 0.16 Extra long (cm) 88.4 ± 3.60 ^b 92.1 ± 3.66 ^a Yieldability (g) 355.4 ± 151.4 436.9 ± 224.7

Effect of Rare Earth Fertilizer on the Contents of Chlorophyll and Nitrogen Nitrate in Rice Survey item Control Rare Earth Treatment Zone Chlorophyll (μg / ml) 9.70 ± 1.19 ^b 12.15 ± 1.63 ^a Nitrogen Nitrate (ppm) 1038 708

Effect of Rare Earth Fertilizer on Yield of Rice Survey Item Control Rare Earth Treatment Zone Serial number (dog / abandonment) available 13.2 ± 3.28 15.3 ± 3.19 invalidity 0.93 ± 1.28 ^a 0.33 ± 1.15 ^b Live weight (g / aeration) 115.9 ± 20.55 138.5 ± 32.88 Tide assistant (dog / ear) 105.7 ± 19.4 ^b 118.2 ± 22.9 ^a Qty of water (kg / 10a) 750 810

As described above, the present invention is a method for increasing the yield of feed crops by diluting the fertilizer made of rare earth elements in water to a concentration of 20ppm or 800ppm for feed crops and 600-1300 times the fertilizer made of rare earth elements It is diluted with water and sprayed on fruit trees, vegetables or rice to provide a method of improving the yield and quality of agricultural products. When the rare earth fertilizer of the present invention is applied to feed crops such as corn, Italian lygras, sorghum and sudangrass, the yield and feed rate of feed crop seeds are increased to increase the yield of feed crops. It also promotes growth and improves quality when used on fruit trees, vegetables or rice. Rare earth is universally present in nature and has the effect of increasing disease resistance and environmental resistance, pesticide residues and nitrates, which makes it possible to cultivate crops stably against pesticides and to improve the quality of crops without fear of soil pollution such as chemical fertilizers. Improved and increased yields allow easy utilization of crops.

Claims (4)

Dilute fertilizer consisting of one rare earth element selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc and Y To increase the yield of feed crops by fertilizing feed crops at a concentration of 20 ppm or 800 ppm The method of claim 1, wherein the feed crop is corn, sorghum, Italian lysate or sudangrass. Fertilizer consisting of one rare earth element selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc and Y 600-1300 A method of diluting pear's water and spreading it on fruit trees, vegetables, or rice to increase the yield or quality of agricultural products. delete