Application of arginine silicate inositol complex in improving crop fruit quality

Abstract

The present invention discloses the application of an arginine silicate inositol complex in improving the quality of crop fruits. The invention belongs to the technical field of fertilizers. The arginine silicate inositol complex combines three substances: organic arginine, inorganic potassium silicate aqueous solution, and inositol. It can simultaneously provide nitrogen, potassium, and silicon to crops, thereby promoting crop growth and development. At the same time, arginine can improve the crop's resistance to adversity, while silicon increases the crop's hardness. After the above substances are chelated, the crop's fruit yield and quality are improved. The complex is non-toxic to the human body and can be applied by root application or spraying. It can reduce the use of fertilizers in agricultural production and avoid soil pollution caused by the co-application of single or multiple-element fertilizers or residuals from excessive application.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizers and relates to application of an arginine silicate inositol complex in improving the quality of crop fruits. Background Art

[0002] Silicon, the second most abundant element in the Earth's crust, is generally considered beneficial but non-essential for plants. Through long-term agricultural practice, it has been gradually recognized that crops require silicon in moderate quantities, second only to nitrogen, phosphorus, and potassium, making it the fourth most essential element for crop growth. Silicon in soil is mostly in a stable, crystalline and amorphous form, which plants cannot directly absorb and utilize. Only small amounts of water-soluble, single-molecule silicic acid can be absorbed by plants. Numerous studies have also shown that different plant species have varying abilities to absorb and accumulate silicon, with silicon content ranging from 0.1% to 10.0% of plant dry weight. After being absorbed by plant roots, silicon is transported along the xylem to the stem along with water flow. It is then transported through the xylem to the aerial parts of the plant. Silicon concentrations are low in absorptive organs such as roots and higher in transpiration organs such as leaves, with the highest concentrations in the stem. Studies have shown that silicon is deposited more in older leaves, with silicon accumulation increasing from the base to the tip. Consequently, silicon deficiency often occurs in apical organs with weak transpiration and relative isolation, such as fruits and young, tender parts.

[0003] Numerous studies have shown that silicon promotes balanced mineral absorption by crops, reduces heavy metal toxicity, enhances disease and stress resistance, increases stem strength and fruit firmness, promotes photosynthesis, and improves yield and quality. This is particularly true for edible fruit in horticultural crops, where the silicon content determines its firmness and storage properties, ultimately determining its commercial value. Currently, traditional silicon fertilizers are widely used, but they present several major challenges, including limited improvement in crop quality, the inconvenience of single-use silicon fertilizers, and soil contamination caused by excessive silicon fertilizer use.

[0004] Silicon compound fertilizer is a kind of fertilizer with rich nutrition. It can not only provide comprehensive nutrition for crops at one time, but also reduce the cost of crop fertilizer application.

[0005] Previous studies have shown that inositol participates in the ROS process to improve the ability of plants to resist adversity, but its effect on promoting plant growth and development and improving fruit quality remains unknown. Invention patent CN1182873C discloses an arginine silicate inositol complex and its application. The preparation method of the complex includes the steps of: (a) mixing arginine, silicate and inositol into a suspension; (b) heating the suspension to promote gel formation; (c) crystallizing the gel; (d) mixing the crystals generated in step (c) with alcohol to accelerate crystallization; and (e) collecting the crystals in step (d). The arginine silicate inositol complex disclosed in the invention is orally administered daily and is used for medium-sized pharmaceutical applications in the treatment of bone or cartilage diseases. However, there are currently few reports on the use of arginine silicate inositol complexes as silicon compound fertilizers to improve the quality of crop fruits. Summary of the Invention

[0006] In response to the shortcomings of the above-mentioned prior art, the present invention aims to provide an arginine silicate inositol complex for use in improving the quality of crop fruits. The arginine silicate inositol complex of the present invention is prepared by mixing potassium silicate with arginine and inositol. It can simultaneously provide nitrogen, silicon, and potassium to plants, promoting plant growth, increasing yield, and improving fruit quality.

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

[0008] The first aspect of the present invention provides the use of an arginine silicate inositol complex in improving the quality of crop fruits.

[0009] Preferably, the fruit quality is specifically fruit firmness, color difference, pectin content and / or soluble solids.

[0010] Preferably, the crops include tomatoes and apples.

[0011] Preferably, the preparation method of the arginine silicate inositol complex is:

[0012] A 25-35% potassium silicate aqueous solution is heated to 60° C., and then inositol is added and stirred. After the inositol is dissolved, arginine is added, and after the arginine is dissolved, a mixed solution is obtained. The mixed solution is heated to 90-100° C., maintained for 5-10 minutes, and then cooled to 16-26° C. The cooled mixed solution is dried at 60-70° C. to obtain an arginine silicate inositol complex.

[0013] Preferably, the ratio of arginine, potassium silicate aqueous solution and inositol is (400-450) g: (1-2) L

[0014] (200-210)g.

[0015] The second aspect of the present invention provides a method for improving the quality of crop fruits, comprising applying the arginine silicate inositol complex to the crops, wherein the application method includes spraying and root irrigation.

[0016] The root irrigation treatment specifically comprises: preparing an arginine silicate inositol complex into an aqueous solution with a mass concentration of 1% to 4%, and then performing root irrigation treatment on tomatoes;

[0017] The spraying treatment specifically comprises the following steps: preparing the arginine silicate inositol complex into an aqueous solution with a mass concentration of 20%-25%, and then spraying the solution on the apple trees.

[0018] Beneficial effects of the present invention:

[0019] (1) The arginine silicate inositol complex of the present invention is based on silicate (inorganic silicon fertilizer) and is compounded with arginine and inositol. It can provide crops with nitrogen, potassium and silicon at the same time, thereby promoting crop growth and development. At the same time, arginine can improve the resistance of crops to adversity, while silicon increases the hardness of crops. Inositol, as a solubilizer, can enhance the hydrogen bond between potassium silicate and arginine to promote the formation of a complex. At the same time, inositol has the effect of improving fertilizer application and can promote the absorption and application of potassium silicate and arginine by plants. After the above-mentioned substances are chelated, the yield and quality of crop fruits are improved. Compared with the use of potassium silicate, arginine and inositol alone, it has a significant synergistic effect.

[0020] (2) The complex prepared by the present invention is non-toxic to the human body and can be applied by root application or spraying, which can reduce the application of fertilizers in agricultural production and avoid soil pollution caused by the co-application of single or multiple element fertilizers or excessive application of residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a phenotypic comparison diagram of Tom tomatoes treated with root irrigation for 36 days;

[0022] Figure 2 This is a comparison diagram of Tom tomato fruit phenotypes treated by root irrigation in the present invention;

[0023] Figure 3 This is a comparison chart of silicon content in the leaves of Tom tomato seedlings treated by root irrigation in the present invention;

[0024] Figure 4 This is a comparison chart of silicon content in tomato fruits of Tom tomato plants treated by root irrigation in the present invention;

[0025] Figure 5 This is a phenotypic comparison diagram of Pingyi Tiancha apple seedlings treated with root irrigation for 42 days;

[0026] Figure 6This is a comparison diagram of Gala apple fruit phenotypes treated by spraying in the present invention;

[0027] Figure 7 This is a comparison chart of silicon content in the leaves of Pingyi Tiancha apple seedlings treated by root irrigation in the present invention;

[0028] Figure 8 This is a comparison of the silicon content in the peel and flesh of apple fruits of 6-year-old Gala / M9 apple trees treated by spraying in the present invention. DETAILED DESCRIPTION

[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0030] As mentioned above, in the prior art, only arginine silicate inositol complex is used to prepare drugs for treating bone or cartilage diseases, and there are few reports on its application in improving fruit quality.

[0031] In view of this, the present invention has conducted in-depth research on the application direction of arginine silicate inositol complex. The present invention has found that the arginine silicate inositol complex can simultaneously provide plants with nitrogen, silicon, and potassium, promoting plant growth, improving yield and fruit quality; inositol, as a solubilizer for the complex, can enhance the hydrogen bond between potassium silicate and arginine to promote the formation of a complex; at the same time, inositol has the effect of improving fertilizer application and can promote the absorption and application of potassium silicate and arginine by plants. Therefore, using potassium silicate, arginine, and inositol in the form of the above-mentioned complex has a synergistic effect in improving the quality of crop fruits compared to using them separately, achieving a 1+1>2 effect.

[0032] Moreover, arginine silicate inositol complex can increase the silicon content of crops by spraying or root irrigation. The method is simple and easy to operate, which can reduce the application of fertilizers in agricultural production and avoid soil pollution caused by the co-application of single or multiple element fertilizers or excessive application of residues.

[0033] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the technical solution of the present application will be described in detail below with reference to specific embodiments.

[0034] Example 1: Preparation of arginine silicate inositol complex.

[0035] Accurately measure 1.474 L of a 28% potassium silicate aqueous solution and add it to a three-necked round-bottom flask. Heat to 60°C while stirring. Maintaining the temperature, add 205.8 g of inositol and stir vigorously. Once the inositol has dissolved, add 417 g of arginine. Once the arginine has dissolved, a mixed solution is obtained. Heat the mixed solution to 95°C for 5 minutes, then pour it into a beaker and allow it to cool naturally. Finally, dry it in an oven at 60°C to obtain the arginine silicate inositol complex.

[0036] Example 2: Preparation of arginine silicate inositol complex.

[0037] Accurately measure 1L of a 25% potassium silicate aqueous solution and add it to a three-necked round-bottom flask. Heat to 60°C while stirring. Maintaining the temperature, add 200g of inositol and stir vigorously. Once the inositol has dissolved, add 400g of arginine. Once the arginine has dissolved, a mixed solution is obtained. Heat the mixed solution to 90°C for 5 minutes, then pour it into a beaker and allow it to cool naturally. Finally, dry it in an oven at 65°C to obtain the arginine silicate inositol complex.

[0038] Example 3: Preparation of arginine silicate inositol complex.

[0039] Accurately measure 2L of a 35% potassium silicate aqueous solution and add it to a three-necked round-bottom flask. Heat to 60°C while stirring. Maintaining the temperature, add 210g of inositol and stir vigorously. Once the inositol has dissolved, add 450g of arginine. Once the arginine has dissolved, a mixed solution is obtained. Heat the mixed solution to 100°C for 5 minutes, then pour it into a beaker and allow it to cool naturally. Finally, dry it in an oven at 70°C to obtain the arginine silicate inositol complex.

[0040] Test Example 1: Effects of arginine silicate inositol complex on tomatoes and their fruits.

[0041] The Tom tomatoes used in this experiment were planted in the National Key Laboratory of Wheat Breeding at Shandong Agricultural University.

[0042] (1) Test method:

[0043] In Example 1, the molar ratio of arginine:silicate:inositol in the dried arginine silicate inositol complex was approximately 1.8:2.1:1.2, and the silicon content of the arginine silicate inositol complex was determined to be 0.41%. A mother solution of arginine silicate inositol complex having a Si concentration of 30 mM was prepared based on the silicon content: 20.48 g of the arginine silicate inositol complex was dissolved in 100 ml of ultrapure water to obtain the mother solution of arginine silicate inositol complex. Subsequently, arginine mother liquor, potassium silicate mother liquor, and inositol mother liquor were prepared separately, and according to the ratio of 1.8:2.1:1.2, the concentration of silicon in the potassium silicate mother liquor was the same as that in the arginine silicate inositol complex mother liquor, the concentration of inositol mother liquor was the same as that in the arginine silicate inositol complex mother liquor, and the concentration of arginine mother liquor was the same as that in the arginine silicate inositol complex mother liquor. The specific steps are as follows: 0.46g potassium silicate was dissolved in 100ml ultrapure water to obtain potassium silicate mother liquor, 0.31g inositol was dissolved in 100ml ultrapure water to obtain inositol mother liquor, and 0.45g arginine was dissolved in 100ml ultrapure water to obtain arginine mother liquor. The above mother liquors were then taken to prepare different treatment groups, and the tomato plants were subjected to root irrigation treatment. The treatment groups are as follows:

[0044] 6.67 ml of each mother liquor was taken and the volume was adjusted to 100 ml to obtain a first potassium silicate solution, a first arginine solution, a first inositol solution and a first arginine silicate inositol complex solution; 20 ml of the mother liquor was taken and the volume was adjusted to 100 ml to obtain a second potassium silicate solution, a second arginine solution, a second inositol solution and a second arginine silicate inositol complex solution.

[0045] Control group 1 (CK): watered with clean water;

[0046] Positive control 1 (T1-1): application of the first potassium silicate solution;

[0047] Positive control 2 (T1-2): application of the second potassium silicate solution;

[0048] Positive control 3 (T1-3): application of the first inositol solution;

[0049] Positive control 4 (T1-4): application of the second inositol solution;

[0050] Positive control 5 (T1-5): application of the first arginine solution;

[0051] Positive control 6 (T1-6): application of the second arginine solution;

[0052] Treatment group 1 (T1-7): application of the first arginine silicate inositol complex solution;

[0053] Treatment group 2 (T1-8): the second arginine silicate inositol complex solution was applied.

[0054] For all the above treatments, watering began when the tomatoes had grown four true leaves. Three tomatoes were watered in each treatment, and each was watered with 30 ml of treatment solution. Treatment was carried out once every week and ended when the first bunch of tomatoes matured. Root irrigation was carried out 12 times in total. Six weeks after treatment, the plant height of the tomato seedlings was measured at the initial flowering stage using a steel ruler (0-15 cm, 0.1 cm); the stem diameter was measured using a vernier caliper (0-150 mm, 0.02 mm); after 24 hours of 95% ethanol extraction, the absorbance was measured at 649 nm, 665 nm, and 470 nm using a spectrophotometer to calculate the leaf pigment content; the net photosynthetic rate of tomato leaves, Pn (μmol·m -2 ·s -1 After the first bunch of fruits matured, samples were taken and the weight of each fruit was determined using an electronic balance (0-1500 g, 0.01 g). The vertical and horizontal diameters of the fruit were measured using a vernier caliper, and the fruit shape index was calculated as vertical diameter / horizontal diameter. Fruit firmness was determined using a texture analyzer (TA.XT plus massspectrometer, Stable Micro Systems, Godalming, England). Fruit color was determined using a colorimeter (CR-10, Konika-Minolta, Japan). The soluble solids content was determined using a handheld refractometer (TY / HTPTD-45, Tuya, Huizhou, China). The protopectin and soluble pectin contents of tomato pulp were determined using the carbazole colorimetric method, and the total pectin content was calculated. The measurements were repeated three times.

[0055] (2) Test results:

[0056] The growth phenotype of Tom tomato seedlings treated with the arginine silicate inositol complex prepared in Example 1 of the present invention by root irrigation is shown in the figure below. Figure 1 The comparison of tomato fruit phenotypes after treatment is shown in Figure 2 As shown, the silicon content of tomato seedling leaves is Figure 3 As shown, the silicon content of tomato fruit is Figure 4 shown.

[0057] The test data are shown in Tables 1 to 5.

[0058] from Figure 1 It can be seen that the treatment with arginine silicate inositol complex can significantly promote the growth of tomato seedlings and significantly advance the flowering period of tomato seedlings. Figure 1 The phenotypic diagram also clearly shows that the leaves of tomato plants treated with arginine silicate inositol complex are greener.

[0059] Table 1: Effects of arginine silicate inositol complex on the growth of tomato seedlings

[0060]

[0061] It can be seen from Table 1 that the plant height, stem diameter and net photosynthetic rate of tomato seedlings treated with arginine silicate inositol complex were significantly increased compared with those treated with potassium silicate, inositol, arginine and water.

[0062] Table 2: Effects of arginine silicate inositol complex on pigment content in leaves of Tom tomato seedlings

[0063]

[0064] As shown in Table 2, the contents of chlorophyll a, b and carotenoids were significantly increased compared with those in the CK, potassium silicate and inositol treatments, but there was no significant difference compared with the arginine treatment.

[0065] Table 3: Effects of arginine silicate inositol complex on appearance quality of Tom tomato fruit

[0066] Single fruit weight (g) Fruit shape index Hardness (g) CK 2.51±0.56bcd 0.89±0.04ab 689.53±86.61cd T1-1 2.54±0.86bcd 0.88±0.07b 788.03±68.44ab T1-2 2.28±0.51cd 0.90±0.04ab 750.23±32.55bc T1-3 2.36±0.66cd 0.93±0.04a 647.53±42.76d T1-4 2.08±0.81d 0.88±0.04b 692.33±70.07cd T1-5 2.81±0.44bc 0.87±0.03b 715.87±15.02cd T1-6 3.13±0.57ab 0.89±0.04ab 690.77±49.19cd T1-7 3.63±0.51a 0.90±0.02ab 819.00±51.54ab T1-8 3.57±0.50a 0.89±0.05ab 831.77±61.54a

[0067] Table 4: Effects of arginine silicate inositol complex on appearance quality of Tom tomato fruit

[0068]

[0069] from Figure 3 As shown in Table 4, the tomato fruits treated with arginine silicate inositol complex were larger than those treated with CK, pure water, potassium silicate, and inositol, and the single fruit weight was significantly higher than those treated with pure water, potassium silicate, and inositol. The fruit shape index did not change significantly, and the tomato fruits treated with T1-8 were redder than those treated with pure water (Table 4). As shown in Table 3, the firmness of the tomato fruits treated with arginine silicate inositol complex and potassium silicate was significantly higher than that treated with pure water, inositol, and arginine. Specifically, the firmness of the tomato fruits treated with arginine silicate inositol complex was higher than that of the potassium silicate treatment, and the firmness of the tomato fruits treated with T1-8 was significantly higher than that of the tomato fruits treated with T1-2.

[0070] like Figure 3 The figure shows the silicon content in the leaves of tomato seedlings treated with arginine silicate inositol complex. The silicon content in the leaves of tomato seedlings treated with arginine silicate inositol complex and potassium silicate was significantly increased compared with the CK and arginine treatments. Among them, the silicon content in the leaves of tomato seedlings treated with T1-7 increased significantly by 52.0% compared with the T1-1 treatment. The silicon content in the leaves of tomato seedlings treated with T1-7, T1-8 and T1-2 was slightly different.

[0071] Table 5: Effects of arginine silicate inositol complex on the intrinsic quality of Tom tomato fruit

[0072]

[0073] From Table 5, it can be seen that the soluble solids content, protopectin, soluble pectin and total pectin content of tomato fruits in the arginine silicate inositol complex watering treatment were significantly higher than those in the water, inositol and arginine watering treatments. Among them, the soluble solids content of fruits in T1-7 and T1-8 were significantly increased by 1% and 1.1% compared with the CK treatment, and the total pectin content was significantly increased by 85.1% and 111.9%.

[0074] Test Example 2: Effects of arginine silicate inositol complex on sweet tea apples.

[0075] (1) Test method:

[0076] The arginine silicate inositol complex prepared in Example 1 was dissolved in ultrapure water, and the solution preparation method of each treatment group was the same as that of Experimental Example 1. The treatment groups were as follows:

[0077] Control group 1 (CK): watered with clean water;

[0078] Positive control 1 (T2-1): application of the first potassium silicate solution;

[0079] Positive control 2 (T2-2): application of the second potassium silicate solution;

[0080] Positive control 3 (T2-3): application of the first arginine solution;

[0081] Positive control 4 (T2-4): application of the second arginine solution;

[0082] Treatment group 1 (T2-5): application of the first arginine silicate inositol complex solution;

[0083] Treatment group 2 (T2-6): the second arginine silicate inositol complex solution was applied.

[0084] Treatment began when the Pingyi sweet tea seedlings had four leaves and one heart. Twelve apple seedlings were watered in each treatment, with each apple seedling receiving 30 ml of treatment solution. Treatments were conducted once every week for a total of 12 treatments. Following treatment, plant height, stem diameter, leaf pigment content, and net photosynthetic rate of the treated Pingyi sweet tea seedlings were measured using the same methods as for tomato seedlings.

[0085] (2) Test results:

[0086] The growth phenotype of apple seedlings after treatment is shown in the figure below. Figure 5 As shown in Figure 2, the silicon content in the leaves of apple seedlings is as follows: Figure 7 shown.

[0087] The test data are shown in Table 6-7.

[0088] Table 6: Effects of arginine silicate inositol complex on the growth of Pingyi Tiancha apple seedlings

[0089]

[0090] Table 7: Effects of arginine silicate inositol complex on the pigment content in leaves of Pingyi Tiancha apple seedlings

[0091]

[0092] Depend on Figure 5 As shown in Tables 6 and 7, the arginine silicate inositol complex treatment significantly increased plant height, stem diameter, chlorophyll a, b, and carotenoid content compared to the other three treatments. As shown in Table 6, the arginine silicate inositol complex treatment also significantly increased the net photosynthetic rate of seedlings, increasing it 5.97 times compared to the water treatment.

[0093] like Figure 7 The figure shows the silicon content in the leaves of apple seedlings treated with arginine silicate inositol complex. The silicon content in the leaves of apple seedlings treated with arginine silicate inositol complex and potassium silicate was significantly increased compared with the CK and arginine treatments. Among them, the silicon content in the leaves of apple seedlings treated with T5 increased by 16.1% compared with the T1 treatment, but it was not significant. The silicon content in the leaves of apple seedlings treated with T5, T6 and T2 was similar.

[0094] Test Example 3: Effects of arginine silicate inositol complex on Gala apples.

[0095] (1) Test method:

[0096] The arginine silicate inositol complex prepared in Example 1 of the present invention was used to prepare an aqueous solution with a concentration of 30 mM. The preparation method was the same as that of Example 1. Gala apple trees were treated by spraying. The spraying method was as follows: spraying treatment began when the Gala apple trees were in full bloom (mid-April), 6 trees were sprayed per treatment, and each tree was sprayed with 0.5 L of spray. The spraying was performed once every month and stopped after the fruits matured (mid-August). A total of 5 spraying treatments were performed. After the fruits matured, they were picked and taken to the laboratory to measure indicators such as single fruit weight, fruit shape index, hardness, color difference and pectin content. The measurement method was the same as that of tomato fruits. The various treatment groups are as follows:

[0097] Control group 1 (CK): watered with clean water;

[0098] Treatment group 1 (T3-1): 20.48% arginine silicate inositol complex was applied.

[0099] (2) Test results:

[0100] The comparison of apple fruit phenotypes after treatment is shown in the figure below. Figure 6 As shown in the figure below, the silicon content of apple fruit peel and flesh is compared. Figure 8 shown.

[0101] The test data are shown in Table 8-9.

[0102] Table 8: Gala apple fruit appearance quality

[0103]

[0104] Table 9 Gala apple fruit internal quality

[0105] Soluble solids (%) Protopectin (%) Soluble pectin (%) Total pectin content (%) CK 13.36±0.79b 0.77±0.10a 0.42±0.06a 1.19±0.14b T3-1 13.84±0.61a 1.14±0.15b 0.54±0.08a 1.68±0.23a

[0106] like Figure 4 As shown in Table 5, apple fruit treated with arginine silicate inositol complex showed a significant reddish color shift. The skin firmness of apple fruit treated with arginine silicate inositol complex increased by 0.1% compared to the water treatment, and the flesh firmness increased by 5.0%. As shown in Table 6, the internal quality of Gala apples showed a significant increase in soluble solids, protopectin, and total pectin content in apple fruit treated with arginine silicate inositol complex compared to the water treatment. Soluble pectin increased slightly, but not significantly. Arginine silicate inositol complex significantly increased soluble solids by 3.66% and total pectin by 41.3% compared to the water treatment.

[0107] like Figure 8 As shown in the results, the silicon content of apple peel and flesh treated with arginine silicate inositol complex increased by 103.3% and 167.9% respectively compared to the water treatment. Therefore, treatment with arginine silicate inositol complex can significantly promote apple fruit coloring, increase sugar content, firmness, pectin content, and silicon content, and improve apple fruit quality.

[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the implementation and application of the present invention. Any modifications, equivalent replacements, etc. made in the implementation and application within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Application of arginine silicate inositol complex in improving crop fruit quality; The preparation method of the arginine silicate inositol complex is: A 25-35% potassium silicate aqueous solution is heated to 60° C., and then inositol is added and stirred. After the inositol is dissolved, arginine is added, and after the arginine is dissolved, a mixed solution is obtained; the mixed solution is heated to 90-100° C., maintained for 5-10 minutes, and then cooled to 16-26° C. The cooled mixed solution is dried at 60-70° C. to obtain an arginine silicate inositol complex; The crop is tomato or apple; The fruit quality includes: fruit hardness and protopectin content.

2. The use according to claim 1, characterized in that The usage ratio of the arginine, the potassium silicate aqueous solution and the inositol is (400-450) g: (1-2) L: (200-210) g.

3. A method for improving the quality of crop fruits, characterized in that: Applying the arginine silicate inositol complex according to claim 1 to crops, wherein the application method includes spraying and root irrigation; The crop is tomato or apple.

4. The method according to claim 3, characterized in that The root irrigation step comprises: preparing the arginine silicate inositol complex into an aqueous solution with a mass concentration of 1%-4%, and then performing root irrigation treatment on the crops.

5. The method according to claim 3, characterized in that The spraying step comprises: preparing the arginine silicate inositol complex into an aqueous solution with a mass concentration of 20%-25%, and then spraying the solution on the crops.

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