A method for growing flavorful tomatoes in saline-alkali soil

By pre-treating the saline-alkali soil, spraying the treatment solution and adding the substrate at the time of transplanting, applying the conditioner during the flowering period, and managing the fertilizer during the fruiting period, the problem of maintaining the taste and nutritional value of tomatoes grown on saline-alkali soil has been solved, and the results of high-yield and high-nutritional-value tomato cultivation have been achieved.

CN117461520BActive Publication Date: 2025-10-28HUBEI COLORFUL MANOR AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202311232409.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-22
Publication Date
2025-10-28
Estimated Expiration
2043-09-22

AI Technical Summary

Technical Problem

When growing tomatoes on saline-alkali land, existing technologies make it difficult to grow tomatoes with good taste and high nutritional value, and after many years of continuous planting, it is difficult to maintain a high level of nutritional value and taste.

Method used

Pre-treating the saline-alkali soil before planting involves watering with a mixture of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran; spraying the treatment solution and adding a composite substrate at the time of transplanting; applying a conditioner during the flowering period; and applying appropriate amounts of nitrogen, phosphorus, and potassium fertilizers during the fruiting period.

Benefits of technology

The tomatoes grown here have a good taste and high nutritional value. Even after being grown for many years, the nutritional value and taste can still maintain a high level. The yield reaches 8754-8783 kg/mu, and the vitamin C content, soluble solids and sugar content remain stable over many years.

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Abstract

This invention provides a method for cultivating flavorful tomatoes in saline-alkali soil, belonging to the field of tomato cultivation. The method includes soil pretreatment, transplanting, flowering period treatment, and fruiting period treatment. The flowering period treatment involves applying a conditioner to the tomato roots after the first flower bud appears. The conditioner is prepared by mixing deionized water, malic acid, and sodium stearate, and then subjecting the mixture to low-temperature ultrasonic treatment. The temperature of the low-temperature ultrasonic treatment is controlled at 2.3-2.5℃, the ultrasonic power at 254-266W, and the ultrasonic time at 14-16 minutes. After the low-temperature ultrasonic treatment, manganese sulfate, potassium sulfate, and tartaric acid are added, and the mixture is heat-treated at 56-60℃ for 26-30 minutes. After cooling to room temperature, the conditioner is obtained. Tomatoes cultivated using this method have excellent taste and high nutritional value, and even after many years of cultivation, their nutritional value and taste remain at a high level.
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Description

Technical Field

[0001] This invention belongs to the field of tomato cultivation, specifically relating to a method for cultivating flavorful tomatoes in saline-alkali soil. Background Technology

[0002] Saline-alkali land is a type of soil where salt accumulation affects crop growth. In my country, saline-alkali land is mainly distributed in the northeastern and northwestern inland areas, as well as the coastal areas north of the Yangtze River.

[0003] Salinization deteriorates the physical and chemical properties of the soil, making it difficult for crop roots to absorb water and nutrients from fertilizers, causing physiological drought and nutrient deficiencies, which in turn have an adverse effect on crop growth.

[0004] The damage caused by saline-alkali soil to plants is mainly manifested in the following three aspects: First, the increase in soil salt content leads to an increase in soil solution concentration and a continuous increase in osmotic pressure, which weakens the plant's ability to absorb water from the soil, thus affecting plant growth; second, the plant absorbs a large amount of chloride ions, sodium ions, etc. from the soil, thereby disrupting the plant's own ion balance and affecting the plant's growth, metabolism, and photosynthesis; third, the high pH value of saline-alkali soil causes an imbalance between the plant and the external environment.

[0005] Therefore, plants grown in saline-alkali soil will experience leaf shrinkage, blackening or even rotting of roots, and death of stems and leaves, which will affect plant growth and yield.

[0006] Currently, the common method for growing tomatoes in saline-alkali land is to add soil conditioners and growth promoters during the planting process. However, the tomatoes grown in this way have poor taste and low nutritional content. Furthermore, after several years of continuous planting, the nutritional content of the tomatoes shows a sharp decline, and the taste is also poor.

[0007] Therefore, providing a method for growing flavorful tomatoes in saline-alkali land, which has good taste and high nutritional value, and whose nutritional value and taste can still be maintained at a high level after many years of continuous planting, is a technical problem that needs to be solved by existing technologies. Summary of the Invention

[0008] To address the technical problems existing in the prior art, this invention provides a method for growing flavorful tomatoes in saline-alkali land. The tomatoes grown have a good taste and high nutritional value, and their nutritional value and taste can still be maintained at a high level after many years of continuous planting.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0010] 1. Soil pretreatment

[0011] Before planting tomatoes, the saline-alkali soil is watered until the soil moisture content is 73-77%. Potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran are added during the watering process. The watering is completed, and the soil is pretreated.

[0012] The mass ratio of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran is 0.8-1.2:2.7-3.2:1.8-2.2:1.4-1.6.

[0013] The total mass of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran added is 16.0-16.8 kg / mu.

[0014] 2. Planting

[0015] Before transplanting tomato seedlings, cover the soil with mulch film, then make holes in the mulch film directly above the tomato seedlings and plant the tomato seedlings in the holes. Spray the roots of the tomato seedlings with a treatment solution, 250-270g per seedling. When transplanting the tomatoes, add 0.5-0.7kg of composite substrate to the soil around the roots of each tomato plant.

[0016] The treatment solution is composed of deionized water, chitosan, sodium alginate and carboxymethyl cellulose, and the mass ratio of deionized water, chitosan, sodium alginate and carboxymethyl cellulose is 44-50:0.4-0.6:0.6-0.8:1.0-1.4.

[0017] The preparation method of the composite matrix is ​​as follows:

[0018] Vermiculite powder was immersed in sulfuric acid solution for 37-45 minutes. After immersion, it was washed and calcined at 224-235℃ for 46-48 minutes. After calcination, it was immediately placed at -14 to -10℃ and allowed to stand for 38-42 minutes. After standing, the temperature was increased to 70-74℃ at a rate of 0.4-0.6℃ / min. Deionized water, glycerol, sodium citrate, ethylene glycol, and mannitol were added, and the mixture was stirred at 66-70℃ for 18-22 minutes. After stirring, the mixture was dried to obtain modified vermiculite powder. The modified vermiculite powder was then mixed evenly with straw, shrimp shells, and decaying leaves to obtain a composite matrix.

[0019] The vermiculite powder has a particle size of 115-125 nm;

[0020] The sulfuric acid solution has a mass concentration of 32-36%;

[0021] The mass ratio of vermiculite powder to sulfuric acid solution is 1:2.6-3.0;

[0022] The mass ratio of vermiculite powder, deionized water, glycerin, sodium citrate, ethylene glycol, and mannitol is 10-14:73-77:0.5-0.7:0.4-0.6:0.7-0.9:0.2-0.4.

[0023] The mass ratio of the modified vermiculite powder, straw, shrimp shells and decaying leaves is 8-12:2.8-3.2:1.6-2.4:10-14.

[0024] 3. Flowering period treatment

[0025] After the first flower buds appear in the tomato plant, apply a conditioner to the tomato roots. The amount applied to each tomato plant is 1.3-1.5 kg. The application time is 18:30 in the afternoon. Apply once every 4 days, for a total of 3 times.

[0026] The preparation method of the conditioner is as follows: deionized water, malic acid and sodium stearate are mixed and stirred, and then subjected to low-temperature ultrasonic treatment. The temperature of the low-temperature ultrasonic treatment is controlled at 2.3-2.5℃, the ultrasonic power is 254-266W, and the ultrasonic time is 14-16min. After the low-temperature ultrasonic treatment, manganese sulfate, potassium sulfate and tartaric acid are added and mixed evenly. The mixture is then placed at 56-60℃ for 26-30min for heat treatment, and then cooled to room temperature to obtain the conditioner.

[0027] The mass ratio of the deionized water, malic acid, sodium stearate, manganese sulfate, potassium sulfate, and tartaric acid is 90-110:1.5-1.9:1.9-2.3:0.3-0.7:0.4-0.8:1.0-1.4.

[0028] 4. Results processing

[0029] Apply fertilizer at the beginning of the tomato fruit enlargement period, with nitrogen fertilizer applied at a rate of 0.023-0.027 kg / m³ (pure nitrogen). 2 The application rate of phosphate fertilizer, calculated as P2O5, is 0.02-0.04 kg / mm. 2 The application rate of potassium fertilizer, calculated as K2O, is 0.020-0.025 kg / mm. 2 .

[0030] Compared with the prior art, the present invention achieves the following beneficial effects:

[0031] 1. Tomatoes grown using the method of this invention have a good taste and a yield of 8754-8783 kg / mu;

[0032] 2. Tomatoes grown using the method of this invention, in their first year, have a vitamin C content of 38.5-39.2 mg / 100g, a soluble solids content of 8.2-8.5%, and a soluble sugar content of 7.0-7.3%.

[0033] The tomatoes from the second year have a vitamin C content of 37.2-38.4 mg / 100g, a soluble solids content of 7.9-8.3%, and a soluble sugar content of 6.7-7.1%.

[0034] Tomatoes from the third year have a vitamin C content of 36.8-38.1 mg / 100g, a soluble solids content of 7.7-8.2%, and a soluble sugar content of 6.5-7.0%. Detailed Implementation

[0035] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention are now described.

[0036] Example 1: A method for growing flavorful tomatoes in saline-alkali soil

[0037] 1. Soil pretreatment

[0038] Before planting tomatoes, the saline-alkali soil is watered until the soil moisture content is 75%. During the watering process, potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran are added. The watering is completed, and the soil is pretreated.

[0039] The mass ratio of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran is 1:3:2:1.5;

[0040] The total mass of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran added is 16.4 kg / mu.

[0041] 2. Planting

[0042] Before transplanting tomato seedlings, cover the soil with mulch film, then make holes in the mulch film directly above the tomato seedlings and plant the tomato seedlings in the holes. Spray the roots of the tomato seedlings with a treatment solution, 260g per seedling. When transplanting the tomatoes, add 0.6kg of composite substrate to the soil around the roots of each tomato plant.

[0043] The treatment solution is composed of deionized water, chitosan, sodium alginate and carboxymethyl cellulose, and the mass ratio of deionized water, chitosan, sodium alginate and carboxymethyl cellulose is 46:0.5:0.7:1.2.

[0044] The preparation method of the composite matrix is ​​as follows:

[0045] Vermiculite powder was immersed in sulfuric acid solution for 40 minutes. After immersion, it was washed and calcined at 230°C for 47 minutes. After calcination, it was immediately placed at -12°C and allowed to stand for 40 minutes. After standing, the temperature was increased to 72°C at a rate of 0.5°C / min. Deionized water, glycerol, sodium citrate, ethylene glycol, and mannitol were added. The mixture was stirred at 68°C for 20 minutes. After stirring, it was dried to obtain modified vermiculite powder. The modified vermiculite powder was then mixed evenly with straw, shrimp shells, and decaying leaves to obtain a composite matrix.

[0046] The vermiculite powder has a particle size of 120 nm;

[0047] The sulfuric acid solution has a mass concentration of 34%.

[0048] The mass ratio of vermiculite powder to sulfuric acid solution is 1:2.8;

[0049] The mass ratio of vermiculite powder, deionized water, glycerin, sodium citrate, ethylene glycol, and mannitol is 12:75:0.6:0.5:0.8:0.3.

[0050] The mass ratio of the modified vermiculite powder, straw, shrimp shells, and decaying leaves is 10:3:2:12.

[0051] 3. Flowering period treatment

[0052] After the first flower buds appear in the tomato plant, apply a conditioner to the tomato roots. The amount applied to each tomato plant is 1.4 kg. The application time is 18:30 in the afternoon. Apply once every 4 days, for a total of 3 times.

[0053] The preparation method of the conditioner is as follows: deionized water, malic acid and sodium stearate are mixed and stirred, and then subjected to low-temperature ultrasonic treatment. The temperature of the low-temperature ultrasonic treatment is controlled at 2.4℃, the ultrasonic power is 260W and the ultrasonic time is 15min. After the low-temperature ultrasonic treatment is completed, manganese sulfate, potassium sulfate and tartaric acid are added and mixed evenly. The mixture is then placed at 58℃ for 28min for heat treatment and then cooled to room temperature to obtain the conditioner.

[0054] The mass ratio of the deionized water, malic acid, sodium stearate, manganese sulfate, potassium sulfate, and tartaric acid is 100:1.7:2.1:0.5:0.6:1.2.

[0055] 4. Results processing

[0056] Apply fertilizer at the beginning of the tomato fruit enlargement period, with nitrogen fertilizer applied at a rate of 0.025 kg / m³ (pure nitrogen). 2 The application rate of phosphate fertilizer, calculated as P2O5, is 0.03 kg / mm. 2 The potassium fertilizer application rate, calculated as K2O, is 0.023 kg / mm². 2 .

[0057] Example 2: A method for growing flavorful tomatoes in saline-alkali land

[0058] 1. Soil pretreatment

[0059] Before planting tomatoes, the saline-alkali soil is watered until the soil moisture content is 73%. During the watering process, potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran are added. The watering is completed, and the soil is pretreated.

[0060] The mass ratio of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran is 1.2:2.7:1.8:1.4.

[0061] The total mass of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran added is 16.0 kg / mu.

[0062] 2. Planting

[0063] Before transplanting tomato seedlings, cover the soil with mulch film, then make holes in the mulch film directly above the tomato seedlings and plant the tomato seedlings in the holes. Spray the roots of the tomato seedlings with a treatment solution, 250g per seedling. When transplanting the tomatoes, add 0.5kg of composite substrate to the soil around the roots of each tomato plant.

[0064] The treatment solution is composed of deionized water, chitosan, sodium alginate and carboxymethyl cellulose, and the mass ratio of deionized water, chitosan, sodium alginate and carboxymethyl cellulose is 44:0.4:0.6:1.0.

[0065] The preparation method of the composite matrix is ​​as follows:

[0066] Vermiculite powder was immersed in sulfuric acid solution for 37 minutes. After immersion, it was washed and calcined at 224℃ for 46 minutes. After calcination, it was immediately placed at -14℃ and allowed to stand for 38 minutes. After standing, the temperature was increased to 70℃ at a rate of 0.4℃ / min. Deionized water, glycerol, sodium citrate, ethylene glycol, and mannitol were added. The mixture was stirred at 66℃ for 18 minutes. After stirring, the mixture was dried to obtain modified vermiculite powder. The modified vermiculite powder was then mixed evenly with straw, shrimp shells, and decaying leaves to obtain a composite matrix.

[0067] The vermiculite powder has a particle size of 115 nm;

[0068] The sulfuric acid solution has a mass concentration of 32%.

[0069] The mass ratio of vermiculite powder to sulfuric acid solution is 1:2.6;

[0070] The mass ratio of vermiculite powder, deionized water, glycerin, sodium citrate, ethylene glycol, and mannitol is 10:73:0.5:0.4:0.7:0.2.

[0071] The mass ratio of the modified vermiculite powder, straw, shrimp shells and decaying leaves is 8:2.8:1.6:10.

[0072] 3. Flowering period treatment

[0073] After the first flower buds appear in the tomato plant, apply a conditioner to the tomato roots. The amount applied to each tomato plant is 1.3 kg. The application time is 18:30 in the afternoon. Apply once every 4 days, for a total of 3 times.

[0074] The preparation method of the conditioner is as follows: deionized water, malic acid and sodium stearate are mixed and stirred, and then subjected to low-temperature ultrasonic treatment. The temperature of the low-temperature ultrasonic treatment is controlled at 2.3℃, the ultrasonic power is 254W and the ultrasonic time is 14min. After the low-temperature ultrasonic treatment is completed, manganese sulfate, potassium sulfate and tartaric acid are added and mixed evenly. The mixture is then placed at 56℃ for 26min for heat treatment and then cooled to room temperature to obtain the conditioner.

[0075] The mass ratio of the deionized water, malic acid, sodium stearate, manganese sulfate, potassium sulfate, and tartaric acid is 90:1.5:1.9:0.3:0.4:1.0.

[0076] 4. Results processing

[0077] Apply fertilizer at the beginning of the tomato fruit enlargement period, with nitrogen fertilizer applied at a rate of 0.023 kg / m³ (pure nitrogen). 2 The application rate of phosphate fertilizer, calculated as P2O5, is 0.02 kg / mm. 2 The potassium fertilizer application rate, calculated as K2O, is 0.020 kg / mm. 2 .

[0078] Example 3: A method for growing flavorful tomatoes in saline-alkali land

[0079] 1. Soil pretreatment

[0080] Before planting tomatoes, the saline-alkali soil is watered until the soil moisture content is 77%. During the watering process, potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran are added. The watering is completed, and the soil is pretreated.

[0081] The mass ratio of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran is 0.8:3.2:2.2:1.6.

[0082] The total mass of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran added is 16.8 kg / mu.

[0083] 2. Planting

[0084] Before transplanting tomato seedlings, cover the soil with mulch film, then make holes in the mulch film directly above the tomato seedlings and plant the tomato seedlings in the holes. Spray the roots of the tomato seedlings with a treatment solution, 270g per seedling. When transplanting the tomatoes, add 0.7kg of composite substrate to the soil around the roots of each tomato plant.

[0085] The treatment solution is composed of deionized water, chitosan, sodium alginate and carboxymethyl cellulose, and the mass ratio of deionized water, chitosan, sodium alginate and carboxymethyl cellulose is 50:0.6:0.8:1.4.

[0086] The preparation method of the composite matrix is ​​as follows:

[0087] Vermiculite powder was immersed in sulfuric acid solution for 45 minutes, washed after immersion, and calcined at 235℃ for 48 minutes. After calcination, it was immediately placed at -10℃ and allowed to stand for 42 minutes. After standing, the temperature was increased to 74℃ at a rate of 0.6℃ / min, and deionized water, glycerol, sodium citrate, ethylene glycol, and mannitol were added. The mixture was stirred at 70℃ for 22 minutes and dried after stirring to obtain modified vermiculite powder. The modified vermiculite powder was then mixed evenly with straw, shrimp shells, and decaying leaves to obtain a composite matrix.

[0088] The vermiculite powder has a particle size of 125 nm;

[0089] The sulfuric acid solution has a mass concentration of 36%.

[0090] The mass ratio of vermiculite powder to sulfuric acid solution is 1:3.0;

[0091] The mass ratio of vermiculite powder, deionized water, glycerin, sodium citrate, ethylene glycol, and mannitol is 14:77:0.7:0.6:0.9:0.4.

[0092] The mass ratio of the modified vermiculite powder, straw, shrimp shells and decaying leaves is 12:3.2:2.4:14.

[0093] 3. Flowering period treatment

[0094] After the first flower buds appear in the tomato plant, apply a conditioner to the tomato roots. The amount applied to each tomato plant is 1.5 kg. The application time is 18:30 in the afternoon. Apply once every 4 days, for a total of 3 times.

[0095] The preparation method of the conditioner is as follows: deionized water, malic acid and sodium stearate are mixed and stirred, and then subjected to low-temperature ultrasonic treatment. The temperature of the low-temperature ultrasonic treatment is controlled at 2.5℃, the ultrasonic power is 266W and the ultrasonic time is 16min. After the low-temperature ultrasonic treatment is completed, manganese sulfate, potassium sulfate and tartaric acid are added and mixed evenly. The mixture is then placed at 60℃ for 30min for heat treatment and then cooled to room temperature to obtain the conditioner.

[0096] The mass ratio of deionized water, malic acid, sodium stearate, manganese sulfate, potassium sulfate, and tartaric acid is 110:1.9:2.3:0.7:0.8:1.4.

[0097] 4. Results processing

[0098] Apply fertilizer at the beginning of the tomato fruit enlargement period, with nitrogen fertilizer applied at a rate of 0.027 kg / m³ (pure nitrogen). 2 The application rate of phosphate fertilizer, calculated as P2O5, is 0.04 kg / mm. 2 The potassium fertilizer application rate, calculated as K2O, is 0.025 kg / mm. 2 .

[0099] Comparative Example 1

[0100] Based on Example 1, the change is that in the planting step, only the tomato seedlings are covered with mulch film, and then holes are made in the mulch film directly above the tomato seedlings to plant the tomato seedlings. The steps of spraying treatment solution and adding composite substrate are omitted, and the rest of the operations are the same.

[0101] Comparative Example 2

[0102] Based on Example 1, the change is that in the step of treating during the flowering period, the conditioner is prepared by mixing deionized water, manganese sulfate, and potassium sulfate evenly to obtain the conditioner, and the mass ratio of deionized water, manganese sulfate, and potassium sulfate is 100:0.5:0.6. All other operations are the same.

[0103] Test case

[0104] A 10-mu (approximately 1.65 acres) saline-alkali land plot was selected in Weifang City, Shandong Province, and divided into 5 equal parts, labeled as Saline-Alkali Plots 1, 2, 3, 4, and 5. Flavor-type tomatoes were then planted according to the methods described in Examples 1, 2, 3, Comparative Example 1, and Comparative Example 2, respectively. The plant spacing at transplanting was controlled at 42 cm, and the row spacing at 43 cm. Other cultivation methods (water, fertilizer, temperature, humidity, and pre-transplanting cultivation) were performed as usual. After the tomato harvest, statistics were collected.

[0105] 1. Production

[0106]

[0107] 2. Fifteen tomatoes were randomly selected from saline-alkali land plots 1-5 respectively, and their vitamin C content, soluble solids content, and soluble sugar content were tested. The results are as follows:

[0108]

[0109] Unless otherwise specified, all proportions mentioned in this invention are mass proportions, and all percentages are mass percentages.

[0110] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for cultivating flavorful tomatoes in saline-alkali land, characterized in that, The method includes soil pretreatment, planting, flowering period treatment, and fruiting period treatment; The soil pretreatment involves watering the saline-alkali soil before planting tomatoes until the soil moisture content reaches 73-77%. During the watering process, potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran are added. The process is completed after watering, resulting in pretreated soil. Before transplanting the tomato seedlings, the soil is covered with mulch film. Then, holes are made in the mulch film directly above the tomato seedlings, and the tomato seedlings are planted in the holes. The roots of the tomato seedlings are sprayed with a treatment solution, 250-270g per seedling. When transplanting the tomatoes, 0.5-0.7kg of composite substrate is added to the soil around the roots of each tomato seedling. The treatment solution is composed of deionized water, chitosan, sodium alginate and carboxymethyl cellulose, and the mass ratio of deionized water, chitosan, sodium alginate and carboxymethyl cellulose is 44-50:0.4-0.6:0.6-0.8:1.0-1.

4. The preparation method of the composite matrix is ​​as follows: vermiculite powder is immersed in sulfuric acid solution for 37-45 minutes, washed after immersion, calcined at 224-235℃ for 46-48 minutes, and immediately placed at -14 to -10℃ for 38-42 minutes after calcination. After standing, the temperature is increased to 70-74℃ at 0.4-0.6℃ / min, and deionized water, glycerol, sodium citrate, ethylene glycol, and mannitol are added. The mixture is stirred at 66-70℃ for 18-22 minutes, and dried after stirring to obtain modified vermiculite powder. The modified vermiculite powder is then mixed evenly with straw, shrimp shells, and decaying leaves to obtain the composite matrix. The aforementioned flowering period treatment involves applying a conditioner to the roots of tomatoes after the first flower buds appear. The amount applied per tomato plant is 1.3-1.5 kg, and the application time is 18:30 in the afternoon. The conditioner is applied once every 4 days, for a total of 3 applications. The preparation method of the conditioner is as follows: deionized water, malic acid and sodium stearate are mixed and stirred, and then subjected to low-temperature ultrasonic treatment. The temperature of the low-temperature ultrasonic treatment is controlled at 2.3-2.5℃, the ultrasonic power is 254-266W, and the ultrasonic time is 14-16min. After the low-temperature ultrasonic treatment, manganese sulfate, potassium sulfate and tartaric acid are added and mixed evenly. The mixture is then placed at 56-60℃ for 26-30min for heat treatment, and then cooled to room temperature to obtain the conditioner. The aforementioned fruit-bearing stage treatment involves applying fertilizer at the beginning of the tomato fruit enlargement period, with nitrogen fertilizer applied at a rate of 0.023-0.027 kg / m³ (pure nitrogen). 2 The application rate of phosphate fertilizer, calculated as P2O5, is 0.02-0.04 kg / mm. 2 The application rate of potassium fertilizer, calculated as K2O, is 0.020-0.025 kg / mm. 2 .

2. The method for cultivating flavorful tomatoes in saline-alkali land according to claim 1, characterized in that, In the preparation method of the composite matrix, the vermiculite powder has a particle size of 115-125 nm; The sulfuric acid solution has a mass concentration of 32-36%; The mass ratio of vermiculite powder to sulfuric acid solution is 1:2.6-3.0; The mass ratio of vermiculite powder, deionized water, glycerin, sodium citrate, ethylene glycol, and mannitol is 10-14:73-77:0.5-0.7:0.4-0.6:0.7-0.9:0.2-0.

4. The mass ratio of the modified vermiculite powder, straw, shrimp shells and decaying leaves is 8-12:2.8-3.2:1.6-2.4:10-14.

3. The method for cultivating flavorful tomatoes in saline-alkali land according to claim 1, characterized in that, In the preparation method of the conditioner, the mass ratio of deionized water, malic acid, sodium stearate, manganese sulfate, potassium sulfate, and tartaric acid is 90-110:1.5-1.9:1.9-2.3:0.3-0.7:0.4-0.8:1.0-1.

4.

4. The method for cultivating flavorful tomatoes in saline-alkali land according to claim 1, characterized in that, In the soil pretreatment step, the mass ratio of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran is 0.8-1.2:2.7-3.2:1.8-2.2:1.4-1.

6. The total mass of potassium nitrate, magnesium sulfate, magnesium nitrate, and dextran added is 16.0-16.8 kg / mu.

Citation Information

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