Bio-organic fertilizer for improving flavor quality of fruits and preparation method of bio-organic fertilizer

Abstract

The invention relates to the technical field of organic fertilizers, and discloses a bio-organic fertilizer for improving the flavor quality of fruits and a preparation method of the bio-organic fertilizer. Comprising the following components in parts by weight: 300 to 400 parts by weight of livestock and poultry manure, 150 to 200 parts by weight of crop straw, 100 to 120 parts by weight of soybean meal, 20 to 25 parts by weight of a microbial agent, 10 to 15 parts by weight of ammonium sulfate, 8 to 10 parts by weight of calcium superphosphate, 1 to 2 parts by weight of manganese sulfate, 1.1 to 1.2 parts by weight of zinc sulfate, 0.8 to 1 part by weight of copper sulfate and 30 to 40 parts by weight of humic acid. And 4-6 parts by weight of quaternary ammonium salt modified thiazole. The bio-organic fertilizer disclosed by the invention can effectively improve the soil structure, improve the soil fertility, promote the growth and development of fruits, enhance the disease and pest resistance of the fruits and remarkably improve the flavor quality of the fruits.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizers, in particular to a biological organic fertilizer for improving the flavor quality of fruits and a preparation method thereof. Background Art

[0002] As people's living standards improve, they have higher and higher requirements for the quality of fruits, not only focusing on their appearance and size, but also on their inherent flavor quality. However, although the use of traditional chemical fertilizers can increase the yield of fruits in the short term, long-term excessive application will lead to soil compaction and decreased fertility, affecting the flavor and taste of fruits. In addition, some harmful substances in chemical fertilizers may remain in fruits, posing a potential threat to human health. Therefore, it is of great practical significance to develop an environmentally friendly bio-organic fertilizer that can both increase fruit yield and improve the flavor quality of fruits. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a bio-organic fertilizer for improving the flavor quality of fruits and a preparation method thereof. The bio-organic fertilizer can effectively improve soil structure, increase soil fertility, promote the growth and development of fruits, enhance the disease and pest resistance of fruits, and significantly improve the flavor quality of fruits.

[0004] (II) Technical solution To achieve the above object, the present invention provides the following technical scheme: a biological organic fertilizer for improving the flavor quality of fruits, comprising the following components by weight: 300-400 parts by weight of livestock and poultry manure, 150-200 parts by weight of crop straw, 100-120 parts by weight of soybean meal, 20-25 parts by weight of microbial agent, 10-15 parts by weight of ammonium sulfate, 8-10 parts by weight of superphosphate, 1-2 parts by weight of manganese sulfate, 1.1-1.2 parts by weight of zinc sulfate, 0.8-1 parts by weight of copper sulfate, 30-40 parts by weight of humic acid, and 4-6 parts by weight of boron-modified thiazole.

[0005] Preferably, the preparation method of the boron-modified thiazole is: S1. Add 4-methyl-5-thiazoleethanol and itaconic anhydride to toluene solvent, stir evenly, add pyridine catalyst dropwise, stir and react at 75-80°C for 6-12h, concentrate under reduced pressure to remove the solvent after the reaction, then wash the crude product with ether, and then dissolve the product in dichloromethane for recrystallization and purification to obtain carboxylated thiazole; S2. Add carboxylated thiazole and N-methyldiethanolamine to N,N-dimethylformamide solvent, stir and mix, continue to add p-toluenesulfonic acid catalyst to carry out esterification reaction, react at 85-90° C. for 8-14 hours, and then distill under reduced pressure, filter, wash and dry to obtain intermediate 1; S3. 4-8 parts by weight of the intermediate 1 and 5-7 parts by weight of 2-bromoethanol were added to an isopropanol solvent, and the temperature was raised to 70-75 ° C for reaction. After the reaction, the solvent was removed by rotary evaporation and recrystallized from ethanol to obtain a quaternary ammonium salt-modified thiazole; S4. Add 1.3-1.5 g of boric acid and 3.44-3.68 g of quaternary ammonium salt-modified thiazole to N,N-dimethylformamide solvent, stir and mix, react at 70-86°C for 4-5 h, and then distill under reduced pressure, wash, and dry to obtain boron-modified thiazole.

[0006] In the above reaction process, the hydroxyl group in 4-methyl-5-thiazoleethanol reacts with the anhydride group in itaconic anhydride to generate a carboxyl group, which then reacts with the hydroxyl group in N-methyldiethanolamine to introduce a tertiary amine, and then reacts with the bromine in 2-bromoethanol to generate a quaternary ammonium salt and introduce a hydroxyl group, and finally reacts with boric acid to obtain a boron-modified thiazole.

[0007] Preferably, in S1, 4-methyl-5-thiazoleethanol, itaconic anhydride, and pyridine catalyst are 1.2-1.3 g: 1 g: 0.02-0.023 g.

[0008] Preferably, in S2, the carboxylated thiazole, N-methyldiethanolamine, and p-toluenesulfonic acid catalyst are 0.8-0.84 g: 1.4-1.6 g: 0.03-0.04 g.

[0009] Preferably, the reaction time in S3 is 10-12h.

[0010] Preferably, the preparation method of the biological organic fertilizer for improving the flavor quality of fruits is as follows: Step 1: putting livestock and poultry manure, crop straw, soybean meal, microbial agent, ammonium sulfate, superphosphate, manganese sulfate, zinc sulfate, copper sulfate, humic acid, and boron-modified thiazole into a blender, fully stirring and crushing, so that various raw materials are evenly mixed to obtain initial material A; Step 2: Transfer the mixed initial material A to the fermentation tank for aerobic fermentation. In the early stage of fermentation, ventilate 1-2 times a day, and each ventilation time is 30-40 minutes; in the middle stage of fermentation, turn the pile every 2-3 days; in the late stage of fermentation, reduce the ventilation frequency, turn the pile every 5-7 days, control the fermentation temperature at 55-65℃, and ferment for 30-40 days, until the material color turns dark brown, has no odor, is soft, and has a water content of about 30%, which means the fermentation is mature; Step 3: The fermented and decomposed materials are granulated by a granulator. The granulated bio-organic fertilizer is dried to reduce the moisture content to 10-15%, and then screened to remove unqualified particles. Finally, it is packaged by a packaging machine to obtain the bio-organic fertilizer that improves the flavor quality of fruits.

[0011] Preferably, the stirring time in step 1 is 20-40 min.

[0012] Preferably, in step three, the diameter of the particles is 2-4 mm.

[0013] 3. Beneficial technical effects Improve soil structure: The fertilizer of the present invention contains rich organic matter and microbial agents, which can increase the soil aggregate structure, improve the soil's air permeability and water retention, improve the soil's physical properties, and create a good soil environment for fruit growth.

[0014] Improve soil fertility: The macroelements such as nitrogen, phosphorus, potassium and trace elements such as iron, manganese and zinc in fertilizers can meet the various nutrient needs of fruit growth. At the same time, the decomposition of organic matter can release a large amount of active substances such as humic acid, which promotes the transformation and absorption of nutrients in the soil and improves soil fertility.

[0015] Promote the growth and development of fruits: The beneficial microorganisms in the microbial agents can form a dominant bacterial community around the roots of fruits, inhibit the growth and reproduction of harmful microorganisms, and enhance the fruit's resistance to diseases and pests; at the same time, the microbial agents can also secrete a variety of plant growth hormones, promote the growth and development of fruit roots, and improve the fruit set rate and fruit quality.

[0016] Improve the flavor quality of fruits: By rationally matching raw materials and optimizing the preparation process, the fertilizer of the present invention can significantly increase the sugar content of fruits, improve the flavor and taste of fruits, and make the fruits sweeter and more delicious.

[0017] Environmentally friendly and pollution-free: The bio-organic fertilizer of the present invention is made from organic waste such as livestock and poultry manure and crop straw as the main raw materials, and is made after fermentation and decomposition. It not only realizes the resource utilization of waste and reduces environmental pollution, but also does not contain any chemical synthetic substances. It is a green and environmentally friendly fertilizer. The quaternary ammonium salt contained in the boron-modified thiazole can be used as a soil conditioner to improve soil structure and fertility; the boron element contained therein can increase the porosity and permeability of the soil, which is beneficial for plants to absorb water and nutrients. DETAILED DESCRIPTION

[0018] Example 1 A biological organic fertilizer for improving the flavor quality of fruits comprises the following components by weight: 300 parts by weight of livestock and poultry manure, 150 parts by weight of crop straw, 100 parts by weight of soybean meal, 20 parts by weight of microbial agent, 10 parts by weight of ammonium sulfate, 8 parts by weight of superphosphate, 1 part by weight of manganese sulfate, 1.1 parts by weight of zinc sulfate, 0.8 parts by weight of copper sulfate, 30 parts by weight of humic acid, and 4 parts by weight of boron-modified thiazole.

[0019] The preparation method of the boron-modified thiazole is as follows: S1. Add 1.2 g of 4-methyl-5-thiazoleethanol and 1 g of itaconic anhydride to a toluene solvent, stir evenly, add 0.02 g of pyridine catalyst dropwise, stir and react at 75°C for 6 h, concentrate under reduced pressure to remove the solvent after the reaction, then wash the crude product with ether, and then dissolve the product in dichloromethane for recrystallization and purification to obtain carboxylated thiazole; S2. Add 0.8 g of carboxylated thiazole and 1.4 g of N-methyldiethanolamine to N,N-dimethylformamide solvent, stir and mix, and then add 0.03 g of p-toluenesulfonic acid catalyst to carry out esterification reaction at 85° C. for 8 h. After the reaction, distill under reduced pressure, filter, wash and dry to obtain intermediate 1; S3. 4 parts by weight of the intermediate 1 and 5 parts by weight of 2-bromoethanol were added to an isopropanol solvent, and the temperature was raised to 70 ° C for 10 h. After the reaction, the solvent was removed by rotary evaporation and recrystallized from ethanol to obtain a quaternary ammonium salt-modified thiazole; S4. Add 1.3 g of boric acid and 3.44 g of quaternary ammonium salt-modified thiazole to N,N-dimethylformamide solvent, stir and mix, react at 70°C for 4 h, and then distill under reduced pressure, wash, and dry to obtain boron-modified thiazole.

[0020] The preparation method of the biological organic fertilizer for improving the flavor quality of fruits is as follows: step 1: putting livestock and poultry manure, crop straw, soybean meal, microbial agent, ammonium sulfate, superphosphate, manganese sulfate, zinc sulfate, copper sulfate, humic acid, and boron-modified thiazole into a blender, and stirring them evenly for 20 minutes to make various raw materials evenly mixed to obtain initial material A; Step 2: Transfer the mixed initial material A to the fermentation tank for aerobic fermentation. In the early stage of fermentation, ventilate once a day for 30 minutes each time; in the middle stage of fermentation, turn the pile every 2 days; in the late stage of fermentation, reduce the ventilation frequency and turn the pile every 5 days. The fermentation temperature is controlled at 55°C and the fermentation time is 30 days, until the material color turns dark brown, has no odor, is soft, and has a water content of about 30%, which means the fermentation is mature; Step 3: The fermented and decomposed materials are granulated by a granulator with a particle diameter of 2 mm. The granulated bio-organic fertilizer is dried to reduce the moisture content to 10%, and then screened to remove unqualified particles. Finally, it is packaged by a packaging machine to obtain the bio-organic fertilizer that improves the flavor quality of fruits.

[0021] Example 2 A biological organic fertilizer for improving the flavor quality of fruits comprises the following components by weight: 400 parts by weight of livestock and poultry manure, 200 parts by weight of crop straw, 120 parts by weight of soybean meal, 25 parts by weight of microbial agent, 15 parts by weight of ammonium sulfate, 10 parts by weight of superphosphate, 2 parts by weight of manganese sulfate, 1.2 parts by weight of zinc sulfate, 1 part by weight of copper sulfate, 40 parts by weight of humic acid, and 6 parts by weight of boron-modified thiazole.

[0022] The preparation method of the boron-modified thiazole is as follows: S1. Add 1.3 g of 4-methyl-5-thiazoleethanol and 1 g of itaconic anhydride to a toluene solvent, stir evenly, add 0.023 g of pyridine catalyst dropwise, stir and react at 80°C for 12 h, concentrate under reduced pressure to remove the solvent after the reaction, wash the crude product with ether, and then dissolve the product in dichloromethane for recrystallization and purification to obtain carboxylated thiazole; S2. Add 0.84 g of carboxylated thiazole and 1.6 g of N-methyldiethanolamine to N,N-dimethylformamide solvent, stir and mix, and then add 0.04 g of p-toluenesulfonic acid catalyst to carry out esterification reaction at 90° C. for 14 h. After the reaction, distill under reduced pressure, filter, wash and dry to obtain intermediate 1; S3. 8 parts by weight of the intermediate 1 and 7 parts by weight of 2-bromoethanol were added to an isopropanol solvent, and the temperature was raised to 75 ° C for 12 h. After the reaction, the solvent was removed by rotary evaporation and recrystallized from ethanol to obtain a quaternary ammonium salt-modified thiazole; S4. Add 1.5 g of boric acid and 3.68 g of quaternary ammonium salt-modified thiazole to N,N-dimethylformamide solvent, stir and mix, react at 86°C for 5 h, and then distill under reduced pressure, wash, and dry to obtain boron-modified thiazole.

[0023] The preparation method of the biological organic fertilizer for improving the flavor quality of fruits is as follows: step 1: putting livestock and poultry manure, crop straw, soybean meal, microbial agent, ammonium sulfate, superphosphate, manganese sulfate, zinc sulfate, copper sulfate, humic acid, and boron-modified thiazole into a blender, and stirring them evenly for 40 minutes to make various raw materials evenly mixed to obtain initial material A; Step 2: Transfer the mixed initial material A to the fermentation tank for aerobic fermentation. In the early stage of fermentation, ventilate twice a day, each time for 40 minutes; in the middle stage of fermentation, turn the pile every 3 days; in the late stage of fermentation, reduce the ventilation frequency, turn the pile every 7 days, control the fermentation temperature at 65°C, and ferment for 40 days, until the material color turns dark brown, has no odor, is soft, and has a water content of about 30%, which means the fermentation is mature; Step 3: The fermented and decomposed materials are granulated by a granulator with a particle diameter of 4 mm. The granulated bio-organic fertilizer is dried to reduce the moisture content to 15%, and then screened to remove unqualified particles. Finally, it is packaged by a packaging machine to obtain bio-organic fertilizer that improves the flavor quality of fruits.

[0024] Example 3 A biological organic fertilizer for improving the flavor quality of fruits comprises the following components by weight: 350 parts by weight of livestock and poultry manure, 170 parts by weight of crop straw, 110 parts by weight of soybean meal, 24 parts by weight of microbial agent, 13 parts by weight of ammonium sulfate, 9 parts by weight of superphosphate, 2 parts by weight of manganese sulfate, 1.2 parts by weight of zinc sulfate, 0.9 parts by weight of copper sulfate, 35 parts by weight of humic acid, and 5 parts by weight of boron-modified thiazole.

[0025] The preparation method of the boron-modified thiazole is as follows: S1. Add 1.25 g of 4-methyl-5-thiazoleethanol and 1 g of itaconic anhydride to a toluene solvent, stir evenly, add 0.02 g of pyridine catalyst dropwise, stir and react at 78°C for 10 h, concentrate under reduced pressure to remove the solvent after the reaction, wash the crude product with ether, and then dissolve the product in dichloromethane for recrystallization and purification to obtain carboxylated thiazole; S2. Add 0.82 g of carboxylated thiazole and 1.5 g of N-methyldiethanolamine to N,N-dimethylformamide solvent, stir and mix, and then add 0.04 g of p-toluenesulfonic acid catalyst to carry out esterification reaction at 86° C. for 10 h. After the reaction, distill under reduced pressure, filter, wash and dry to obtain intermediate 1; S3. 6 parts by weight of intermediate 1 and 5 parts by weight of 2-bromoethanol were added to an isopropanol solvent, and the temperature was raised to 72 ° C for 11 hours. After the reaction, the solvent was removed by rotary evaporation and recrystallized from ethanol to obtain a quaternary ammonium salt-modified thiazole; S4. Add 1.4 g of boric acid and 3.57 g of quaternary ammonium salt-modified thiazole to N,N-dimethylformamide solvent, stir and mix, react at 80°C for 5 h, and then distill under reduced pressure, wash, and dry to obtain boron-modified thiazole.

[0026] The preparation method of the biological organic fertilizer for improving the flavor quality of fruits is as follows: step 1: putting livestock and poultry manure, crop straw, soybean meal, microbial agent, ammonium sulfate, superphosphate, manganese sulfate, zinc sulfate, copper sulfate, humic acid, and boron-modified thiazole into a blender, and stirring them evenly for 30 minutes to make various raw materials evenly mixed to obtain initial material A; Step 2: Transfer the mixed initial material A to the fermentation tank for aerobic fermentation. In the early stage of fermentation, ventilate twice a day, each time for 30 minutes; in the middle stage of fermentation, turn the pile every 3 days; in the late stage of fermentation, reduce the ventilation frequency, turn the pile every 5 days, control the fermentation temperature at 60°C, and ferment for 35 days, until the material color turns dark brown, has no odor, is soft, and has a water content of about 30%, which means the fermentation is mature; Step 3: The fermented and decomposed materials are granulated by a granulator with a particle diameter of 3 mm. The granulated bio-organic fertilizer is dried to reduce the moisture content to 12%, and then screened to remove unqualified particles. Finally, it is packaged by a packaging machine to obtain the bio-organic fertilizer that improves the flavor quality of fruits.

[0027] Example 4 A biological organic fertilizer for improving the flavor quality of fruits comprises the following components by weight: 300 parts by weight of livestock and poultry manure, 150 parts by weight of crop straw, 100 parts by weight of soybean meal, 20 parts by weight of microbial agent, 10 parts by weight of ammonium sulfate, 8 parts by weight of superphosphate, 1 part by weight of manganese sulfate, 1.1 parts by weight of zinc sulfate, 0.8 parts by weight of copper sulfate, 30 parts by weight of humic acid, and 4 parts by weight of boron-modified thiazole.

[0028] The preparation method of the boron-modified thiazole is as follows: S1. Add 1.2 g of 4-methyl-5-thiazoleethanol and 1 g of itaconic anhydride to a toluene solvent, stir evenly, add 0.02 g of pyridine catalyst dropwise, stir and react at 75°C for 6 h, concentrate under reduced pressure to remove the solvent after the reaction, then wash the crude product with ether, and then dissolve the product in dichloromethane for recrystallization and purification to obtain carboxylated thiazole; S2. Add 0.84 g of carboxylated thiazole and 1.6 g of N-methyldiethanolamine to N,N-dimethylformamide solvent, stir and mix, and then add 0.04 g of p-toluenesulfonic acid catalyst to carry out esterification reaction at 90° C. for 14 h. After the reaction, distill under reduced pressure, filter, wash and dry to obtain intermediate 1; S3. 8 parts by weight of the intermediate 1 and 7 parts by weight of 2-bromoethanol were added to an isopropanol solvent, and the temperature was raised to 75 ° C for 12 h. After the reaction, the solvent was removed by rotary evaporation and recrystallized from ethanol to obtain a quaternary ammonium salt-modified thiazole; S4. Add 1.3 g of boric acid and 3.44 g of quaternary ammonium salt-modified thiazole to N,N-dimethylformamide solvent, stir and mix, react at 70°C for 4 h, and then distill under reduced pressure, wash, and dry to obtain boron-modified thiazole.

[0029] The preparation method of the biological organic fertilizer for improving the flavor quality of fruits is as follows: step 1: putting livestock and poultry manure, crop straw, soybean meal, microbial agent, ammonium sulfate, superphosphate, manganese sulfate, zinc sulfate, copper sulfate, humic acid, and boron-modified thiazole into a blender, and stirring them evenly for 40 minutes to make various raw materials evenly mixed to obtain initial material A; Step 2: Transfer the mixed initial material A to the fermentation tank for aerobic fermentation. In the early stage of fermentation, ventilate twice a day, each time for 40 minutes; in the middle stage of fermentation, turn the pile every 3 days; in the late stage of fermentation, reduce the ventilation frequency, turn the pile every 7 days, control the fermentation temperature at 65°C, and ferment for 40 days, until the material color turns dark brown, has no odor, is soft, and has a water content of about 30%, which means the fermentation is mature; Step 3: The fermented and decomposed materials are granulated by a granulator with a particle diameter of 3 mm. The granulated bio-organic fertilizer is dried to reduce the moisture content to 12%, and then screened to remove unqualified particles. Finally, it is packaged by a packaging machine to obtain the bio-organic fertilizer that improves the flavor quality of fruits.

[0030] Example 5 A biological organic fertilizer for improving the flavor quality of fruits comprises the following components by weight: 400 parts by weight of livestock and poultry manure, 200 parts by weight of crop straw, 120 parts by weight of soybean meal, 25 parts by weight of microbial agent, 15 parts by weight of ammonium sulfate, 10 parts by weight of superphosphate, 2 parts by weight of manganese sulfate, 1.2 parts by weight of zinc sulfate, 1 part by weight of copper sulfate, 40 parts by weight of humic acid, and 6 parts by weight of boron-modified thiazole.

[0031] The preparation method of the boron-modified thiazole is as follows: S1. Add 1.3 g of 4-methyl-5-thiazoleethanol and 1 g of itaconic anhydride to a toluene solvent, stir evenly, add 0.023 g of pyridine catalyst dropwise, stir and react at 80°C for 12 h, concentrate under reduced pressure to remove the solvent after the reaction, wash the crude product with ether, and then dissolve the product in dichloromethane for recrystallization and purification to obtain carboxylated thiazole; S2. Add 0.82 g of carboxylated thiazole and 1.5 g of N-methyldiethanolamine to N,N-dimethylformamide solvent, stir and mix, and then add 0.04 g of p-toluenesulfonic acid catalyst to carry out esterification reaction at 86° C. for 10 h. After the reaction, distill under reduced pressure, filter, wash and dry to obtain intermediate 1; S3. 6 parts by weight of intermediate 1 and 5 parts by weight of 2-bromoethanol were added to an isopropanol solvent, and the temperature was raised to 72 ° C for 11 hours. After the reaction, the solvent was removed by rotary evaporation and recrystallized from ethanol to obtain a quaternary ammonium salt-modified thiazole; S4. Add 1.5 g of boric acid and 3.68 g of quaternary ammonium salt-modified thiazole to N,N-dimethylformamide solvent, stir and mix, react at 6°C for 5 h, and then distill under reduced pressure, wash, and dry to obtain boron-modified thiazole.

[0032] The preparation method of the biological organic fertilizer for improving the flavor quality of fruits is as follows: step 1: putting livestock and poultry manure, crop straw, soybean meal, microbial agent, ammonium sulfate, superphosphate, manganese sulfate, zinc sulfate, copper sulfate, humic acid, and boron-modified thiazole into a blender, and stirring them evenly for 30 minutes to make various raw materials evenly mixed to obtain initial material A; Step 2: Transfer the mixed initial material A to the fermentation tank for aerobic fermentation. In the early stage of fermentation, ventilate twice a day, each time for 30 minutes; in the middle stage of fermentation, turn the pile every 3 days; in the late stage of fermentation, reduce the ventilation frequency, turn the pile every 5 days, control the fermentation temperature at 60°C, and ferment for 35 days, until the material color turns dark brown, has no odor, is soft, and has a water content of about 30%, which means the fermentation is mature; Step 3: The fermented and decomposed materials are granulated by a granulator with a particle diameter of 2 mm. The granulated bio-organic fertilizer is dried to reduce the moisture content to 10%, and then screened to remove unqualified particles. Finally, it is packaged by a packaging machine to obtain the bio-organic fertilizer that improves the flavor quality of fruits.

[0033] Comparative Example 1 The difference between this comparative example and Example 5 is that no boron-modified thiazole is added.

[0034] Planting test Field tests were carried out using the bio-organic fertilizer for improving fruit flavor quality of Examples 1-5 and Comparative Example 1. The experiment adopted a randomized block design. Six repeated treatment areas were set in Experiment 1. The area of ​​each treatment area was 0.5 mu. 300 Crunchy and sweet 89 fruit corns 15 days after emergence were grown in each treatment area. The bio-organic fertilizer for improving fruit flavor quality was diluted 1500 times, 50 L / mu, and Crunchy and sweet 89 fruit corn seedlings were sprayed once every 15 days for 7-8 consecutive times. The growth of Crunchy and sweet 89 fruit corn was observed, and the average plant height, the number of diseases and insect pests, and the fruit weight of the fruit corn were recorded. The sweetness of the fruit corn was detected according to NY / T523-2002, and the diseases and insect pests of corn seedlings were judged according to DB33T 943.3-2014.

[0035] Table 1: Fertilizer performance tests.

[0036] It can be seen from Table 1 that the biological organic fertilizer for improving the flavor quality of fruits of the present invention is rich in nutrition, can prevent pests, and improves the quality of fruits.

[0037] It can be seen from Table 1 that after using the biological organic fertilizer of the present invention, the yield of fruits is increased on average, and the flavor quality of fruits is significantly improved; at the same time, the fertility of the soil is also effectively improved.

[0038] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well.

Claims

1. A bio-organic fertilizer for improving the flavor quality of fruits, characterized in that: The invention comprises the following components by weight: 300-400 parts by weight of livestock and poultry manure, 150-200 parts by weight of crop straw, 100-120 parts by weight of soybean meal, 20-25 parts by weight of microbial agent, 10-15 parts by weight of ammonium sulfate, 8-10 parts by weight of superphosphate, 1-2 parts by weight of manganese sulfate, 1.1-1.2 parts by weight of zinc sulfate, 0.8-1 parts by weight of copper sulfate, 30-40 parts by weight of humic acid and 4-6 parts by weight of boron-modified thiazole.

2. The bio-organic fertilizer for improving fruit flavor quality according to claim 1, characterized in that, The preparation method of the boron-modified thiazole is as follows: S1. Add 4-methyl-5-thiazoleethanol and itaconic anhydride to toluene solvent, stir evenly, add pyridine catalyst dropwise, stir and react at 75-80°C for 6-12h, concentrate under reduced pressure to remove the solvent after the reaction, then wash the crude product with ether, and then dissolve the product in dichloromethane for recrystallization and purification to obtain carboxylated thiazole; S2. Add carboxylated thiazole and N-methyldiethanolamine to N,N-dimethylformamide solvent, stir and mix, continue to add p-toluenesulfonic acid catalyst to carry out esterification reaction, react at 85-90° C. for 8-14 hours, and then distill under reduced pressure, filter, wash and dry to obtain intermediate 1; S3. 4-8 parts by weight of the intermediate 1 and 5-7 parts by weight of 2-bromoethanol were added to an isopropanol solvent, and the temperature was raised to 70-75 ° C for reaction. After the reaction, the solvent was removed by rotary evaporation and recrystallized from ethanol to obtain a quaternary ammonium salt-modified thiazole; S4. Add 1.3-1.5 g of boric acid and 3.44-3.68 g of quaternary ammonium salt-modified thiazole to N,N-dimethylformamide solvent, stir and mix, react at 70-86°C for 4-5 h, and then distill under reduced pressure, wash, and dry to obtain boron-modified thiazole.

3. The bio-organic fertilizer for improving fruit flavor quality according to claim 2, characterized in that, In the S1, 4-methyl-5-thiazoleethanol, itaconic anhydride, and pyridine catalyst are 1.2-1.3 g: 1 g: 0.02-0.023 g.

4. The bio-organic fertilizer for improving fruit flavor quality according to claim 2, characterized in that, In the S2, carboxylated thiazole, N-methyldiethanolamine, and p-toluenesulfonic acid catalyst are 0.8-0.84 g: 1.4-1.6 g: 0.03-0.04 g.

5. The bio-organic fertilizer for improving fruit flavor quality according to claim 2, characterized in that, The reaction time in S3 is 10-12h.

6. A method for preparing a bio-organic fertilizer for improving the flavor quality of fruits as claimed in any one of claims 1 to 5, characterized in that: The method for preparing the biological organic fertilizer for improving the flavor quality of fruits comprises: step 1: putting livestock and poultry manure, crop straw, soybean meal, microbial agent, ammonium sulfate, superphosphate, manganese sulfate, zinc sulfate, copper sulfate, humic acid, and boron-modified thiazole into a blender, and fully stirring to mix the various raw materials evenly to obtain initial material A; Step 2: Transfer the mixed initial material A to the fermentation tank for aerobic fermentation. In the early stage of fermentation, ventilate 1-2 times a day, and each ventilation time is 30-40 minutes; in the middle stage of fermentation, turn the pile every 2-3 days; in the late stage of fermentation, reduce the ventilation frequency, turn the pile every 5-7 days, control the fermentation temperature at 55-65℃, and ferment for 30-40 days, until the material color turns dark brown, has no odor, is soft, and has a water content of about 30%, which means the fermentation is mature; Step 3: The fermented and decomposed materials are granulated by a granulator. The granulated bio-organic fertilizer is dried to reduce the moisture content to 10-15%, and then screened to remove unqualified particles. Finally, it is packaged by a packaging machine to obtain the bio-organic fertilizer that improves the flavor quality of fruits.

7. The bio-organic fertilizer for improving fruit flavor quality according to claim 6, characterized in that, The stirring time in step 1 is 20-40 min.

8. The bio-organic fertilizer for improving fruit flavor quality according to claim 6, characterized in that: The particle diameter in step 3 is 2-4 mm.

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