CN112514588A - Method for improving soil fertility of tea garden by using biomass charcoal - Google Patents
Method for improving soil fertility of tea garden by using biomass charcoal Download PDFInfo
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- CN112514588A CN112514588A CN202011379171.1A CN202011379171A CN112514588A CN 112514588 A CN112514588 A CN 112514588A CN 202011379171 A CN202011379171 A CN 202011379171A CN 112514588 A CN112514588 A CN 112514588A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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Abstract
The invention relates to the technical field of biomass charcoal utilization. The invention provides a method for improving soil fertility of a tea garden by using biomass charcoal, which is implemented by applying the biomass charcoal, an organic fertilizer and a chemical fertilizer as top application in soil with the depth of 5-15 cm according to the seedling age of tea seedlings. The method not only provides effective technology and method for improving soil fertility and developing and operating soil with high quality, high yield and high efficiency in the tea garden, particularly Lushan mist tea garden, but also effectively disposes agricultural and forestry waste resources, achieves harmlessness, reduction and recycling of solid waste, enlarges the utilization range of biomass charcoal, prolongs the industrial chain and is beneficial to the development of circular economy.
Description
Technical Field
The invention relates to the technical field of biomass charcoal utilization, in particular to a method for improving soil fertility of a tea garden by using biomass charcoal.
Background
At present, most of tea gardens in China are affected by various factors such as poor garden building foundation, single fertilization and poor management, so that the yield and the quality of tea leaves are reduced. Lushan Yunwu tea is named after Lushan, China Jiangxi Lushan, and belongs to green tea. The production area of Yunwu tea is a tea field in the range of the four-foot cottage areas and the sub-mountain cottage areas of the cottage mountains, a tea field of Dongmuian tea of star, a tea field of the Ming mountain of Jiujiang county and the like. The Lushan mist tea garden is mostly built in the 60-70 years of the 20 th century, due to the poor garden building foundation, the poor tea garden management is poor, the single-class multiple factors of tea field fertilization influence, and in nearly ten years, the yield and the quality of Lushan mist tea are reduced. In the high-yield and high-quality cultivation management of tea trees, fertilization is one of the most effective measures. However, the fertilization period and method are different due to different properties and effects of various fertilizers. Therefore, according to the soil property of the tea garden, the nutritional characteristics of tea trees in the tea field, the soil fertility condition of the tea field and various factors such as weather conditions and the like, three elements of nitrogen, phosphorus and potassium and other nutrients are reasonably proportioned, and the nutritional balance of the tea trees is kept, so that the purposes of high quality, high yield and high efficiency of tea leaves in the tea field are achieved. Therefore, in order to better improve the yield and the quality of the tea, in particular Lushan mist tea, the reasonable fertilizer and the corresponding fertilization technology are adopted according to the actual conditions and the production characteristics of each tea production area, in particular Lushan mist tea production area, so that the yield and the quality of the tea, in particular Lushan mist tea, can be improved, and the purposes of increasing the yield and the income of tea farmers and producing the Lushan mist tea with high quality, high yield and high efficiency are achieved.
The biomass charcoal is a high-stability carbide produced by high-temperature thermal cracking of biomass materials under the condition of partial or complete hypoxia, and has a good anatomical structure, good physicochemical properties, wide material sources and wide industrial development prospects, so that the biomass charcoal is paid much attention in recent years and has been widely applied to agriculture and forestry. However, no reports on the aspect of improving the soil fertility of the Lushan mist tea garden by using biomass charcoal, particularly other fertilizers matched with the biomass charcoal are found at present.
Disclosure of Invention
The invention aims to provide a method for improving soil fertility of a tea garden by using biomass charcoal, which enlarges the utilization range of the biomass charcoal, prolongs an industrial chain and is beneficial to the development of circular economy.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a method for improving soil fertility of a tea garden by using biomass charcoal, which comprises the following steps: according to the seedling age of tea tree seedlings, biomass charcoal, organic fertilizer and chemical fertilizer are used as top application and applied to soil with the depth of 5-15 cm.
Preferably, when the seedling age of the tea tree is 1-4 years, ditching and applying biomass charcoal, organic fertilizer and chemical fertilizer at a position 5-15 cm away from the outer edge of a crown; when the seedling age of the tea tree seedling is 5 years or more, ditching and applying biomass carbon, organic fertilizer and chemical fertilizer right below the outer edge of the crown.
Preferably, when the biomass charcoal, the organic fertilizer and the chemical fertilizer are applied, the biomass charcoal and the soil are uniformly mixed, the organic fertilizer and the chemical fertilizer are applied to the soil layer by layer, the soil is covered layer by layer, and the uppermost surface is covered with a layer of soil.
Preferably, the biomass charcoal contains 5-10% of water, has a granularity of 0.1-1 mm, and is applied in an amount of 1000-2000 kg per mu.
Preferably, the fertilizer is ground phosphate rock, calcium magnesium phosphate fertilizer, calcium superphosphate, urea or potassium sulfate.
Preferably, when the fertilizer is ground phosphate rock, calcium magnesium phosphate fertilizer and calcium superphosphate, the application amount is 200-300 kg per mu; when the fertilizer is urea, the application amount is 50-70 kg per mu; when the fertilizer is potassium sulfate, the application amount is 10-20 kg per mu.
Preferably, the organic fertilizer is compost, and the total application amount is 10000-15000 kg per mu.
Preferably, the organic fertilizer is one or more of green manure, grass manure, straws, cake manure or stable manure, and the total application amount is 1000-2000 kg per mu.
Preferably, when the tea garden is a single tea garden with 1-4 years of seedling age of tea seedlings, the first topdressing time is 3 ten days before month, the second topdressing time is 5 ten days after month or 7-8 months after month, and the weight ratio of the biomass charcoal, the organic fertilizer and the chemical fertilizer used in the two topdressing processes is 5-6: 4 to 5.
Preferably, when the tea garden is a densely planted tea garden with the seedling age of tea tree seedlings of 1-4 years or a production tea garden with the seedling age of tea tree seedlings of 5 years or more, the first topdressing time is 3 months last ten days, the second topdressing time is 5 months later ten days, the third topdressing time is 7 months-8 months, and the weight ratio of the biomass carbon, the organic fertilizer and the chemical fertilizer used in the three topdressing processes is 4-5: 2.5-3: 2.5 to 3.
The invention provides a method for improving soil fertility of a tea garden by using biomass charcoal, which is implemented by applying the biomass charcoal, an organic fertilizer and a chemical fertilizer as top application in soil with the depth of 5-15 cm according to the seedling age of tea seedlings. The method not only provides effective technology and method for improving soil fertility and developing and operating Lushan Yunwu tea garden with high quality, high yield and high efficiency, but also effectively disposes agricultural and forestry waste resources, achieves harmlessness, reduction and recycling of solid waste, expands utilization range of biomass charcoal, prolongs industrial chain and is beneficial to development of circular economy.
Detailed Description
The invention provides a method for improving soil fertility of a tea garden by using biomass charcoal, which comprises the following steps: according to the seedling age of tea tree seedlings, biomass charcoal, organic fertilizer and chemical fertilizer are used as top application and applied to soil with the depth of 5-15 cm.
In the invention, the tea garden is preferably a Lushan mist tea garden.
In the invention, the biomass charcoal is preferably prepared from agricultural and forestry wastes at the anoxic environment of 400-600 ℃, more preferably 450-550 ℃, and still more preferably 500 ℃.
In the invention, the agricultural and forestry wastes are preferably Lushan mist tea branches, tea leaves and tea residues.
According to the method, when the seedling age of the tea tree is 1-4 years, the biomass charcoal, the organic fertilizer and the chemical fertilizer are preferably applied to the positions 5-15 cm away from the outer edge of the crown in a ditching manner, the positions 8-12 cm away from the outer edge of the crown in a ditching manner are further preferred, and the positions 10cm away from the outer edge of the crown in a ditching manner is further preferred.
In the invention, when the seedling age of the tea tree is 5 years or more, the biomass charcoal, the organic fertilizer and the chemical fertilizer are preferably applied to the outer edge of the crown in a ditching manner.
In the invention, when the biomass charcoal, the organic fertilizer and the chemical fertilizer are applied, the biomass charcoal and the soil are preferably uniformly mixed, the organic fertilizer and the chemical fertilizer are applied to the soil layer by layer, the soil is covered layer by layer, and the top is covered with a layer of soil.
In the present invention, the moisture content of the biomass charcoal is preferably 5% to 10%, more preferably 6% to 9%, and still more preferably 7% to 8%.
In the present invention, the particle size of the biomass char is preferably 0.1 to 1mm, more preferably 0.3 to 0.7mm, and still more preferably 0.5 mm.
In the invention, the total application amount of the biomass charcoal is preferably 1000-2000 kg per mu, more preferably 1200-1800 kg per mu, and even more preferably 1500kg per mu.
In the invention, the fertilizer is ground phosphate rock, calcium magnesium phosphate fertilizer, calcium superphosphate, urea or potassium sulfate.
In the invention, when the fertilizer is ground phosphate rock, calcium magnesium phosphate fertilizer and calcium superphosphate, the application amount is preferably 200-300 kg per mu, more preferably 220-280 kg per mu, and even more preferably 250kg per mu; when the fertilizer is urea, the application amount is preferably 50-70 kg per mu, and further preferably 60kg per mu; when the fertilizer is potassium sulfate, the application amount is preferably 10-20 kg per mu, and more preferably 15kg per mu.
In the present invention, the organic fertilizer is preferably compost.
In the invention, the usage amount of the compost is preferably 10000-15000 kg per mu, and more preferably 12000-13000 kg per mu.
In the invention, the organic fertilizer is one or more of green manure, grass fertilizer, straw, cake fertilizer or stable manure.
In the invention, the using amount of the green manure, the grass manure, the straw, the cake manure and the stable manure is preferably 1000-2000 kg per mu, more preferably 1200-1800 kg per mu, and even more preferably 1500kg per mu.
In the invention, when the tea garden is a single tea garden with the seedling age of the tea tree seedling of 1-4 years, the first topdressing time is preferably ten days before 3 months, and the second topdressing time is preferably ten days after 5 months or 7 months-8 months.
In the invention, when the tea garden is a single tea garden with the seedling age of tea tree seedlings of 1-4 years, the weight ratio of biomass carbon, organic fertilizer and chemical fertilizer used in the two topdressing processes is preferably 5-6: 4 to 5.
In the invention, when the tea garden is a densely planted tea garden with the seedling age of the tea tree seedling of 1-4 years or a production tea garden with the seedling age of the tea tree seedling of 5 years or more, the first topdressing time is preferably 3 ten days before month, the second topdressing time is preferably 5 ten days after month, and the third topdressing time is preferably 7-8 months.
In the invention, when the tea garden is a densely planted tea garden with the seedling age of tea tree seedlings of 1-4 years or a production tea garden with the seedling age of tea tree seedlings of 5 years or more, the weight ratio of biomass carbon, organic fertilizer and chemical fertilizer used in the three-time topdressing process is preferably 4-5: 2.5-3: 2.5 to 3.
In the invention, when the top dressing time is 3 months, the fertilizer is preferably applied before spring tea.
In the present invention, when the top dressing time is 5 late ten months, it is preferable to apply the fertilizer after the end of spring tea or when the growth of spring tips stops.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
Selecting a Lushan Yunwu tea single tea garden with the tea tree seedling age of 1 year, wherein the first topdressing time is 3 months and 9 days, and the second topdressing time is 5 months and 25 days. And (2) ditching and applying the biomass charcoal at a position 5cm away from the outer edge of the crown when two topdresses are applied, wherein 1000kg of the biomass charcoal with the water content of 5 percent and the granularity of 0.1mm, 1000kg of green manure and 200kg of phosphate rock powder are applied to each mu of the two topdresses, and the weight ratio of the biomass charcoal, the green manure and the phosphate rock powder used in the first topdressing process to the second topdressing process is 5: 5. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the green manure and the ground phosphate rock are applied to the soil layer by layer in a concentrated strip application mode, soil is covered layer by layer, the soil and the fertilizer are combined, and finally a layer of thin soil is covered on the top.
Example 2
Selecting Lushan Yunwu tea single tea garden with the seedling age of 2 years of tea tree seedlings, wherein the first topdressing time is 3 months and 1 day, and the second topdressing time is 8 months and 20 days. And (2) ditching and applying the biomass charcoal at a position 10cm away from the outer edge of the crown during two topdressing applications, wherein the biomass charcoal with the water content of 7 percent and the granularity of 0.5mm, the compost 12000kg and the calcium magnesium phosphate fertilizer 250kg are applied to each mu in total for the two topdressing applications, and the weight ratio of the biomass charcoal, the compost and the calcium magnesium phosphate fertilizer used in the first topdressing process to the second topdressing process is 6: 4. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the compost and the calcium-magnesia phosphate fertilizer are applied to the soil layer by layer in a concentrated strip application mode, soil and fertilizer are combined layer by layer, and finally a layer of thin soil is covered on the top.
Example 3
Selecting Lushan Yunwu tea single tea garden with the seedling age of 4 years of tea tree seedlings, wherein the first topdressing time is 3 months and 5 days, and the second topdressing time is 7 months and 15 days. And (2) ditching and applying the biomass charcoal at a position 15cm away from the outer edge of the crown during two topdressing applications, wherein the biomass charcoal with the water content of 10 percent and the granularity of 1mm, the cake fertilizer of 2000kg and the calcium superphosphate of 300kg are applied to each mu in total for the two topdressings, and the weight ratio of the biomass charcoal, the cake fertilizer and the calcium superphosphate used in the first topdressing process to the second topdressing process is 5: 5. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the cake fertilizer and the calcium superphosphate are applied into the soil layer by layer in a concentrated strip application mode, soil is covered layer by layer, the soil and the fertilizer are combined, and finally a layer of thin soil is covered on the top.
Example 4
Selecting Lushan Yunwu tea with the seedling age of 4 years for close planting in a tea garden, wherein the first topdressing time is 3 months and 3 days, the second topdressing time is 5 months and 29 days, and the third topdressing time is 7 months and 10 days. When the three-time top dressing is applied, the biomass charcoal is ditched and applied at a position 15cm away from the outer edge of the crown, the water content of the biomass charcoal with the granularity of 0.1mm is 5 percent, the straw manure is 1000kg and the phosphate rock powder are 200kg in total applied per mu of the three-time top dressing, and the weight ratio of the biomass charcoal, the straw manure and the phosphate rock powder used in the processes of the first time top dressing, the second time top dressing and the third time is 4: 3: 3. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the grass fertilizer and the ground phosphate rock are applied to the soil layer by layer in a concentrated strip application mode, soil is covered layer by layer, the soil and the fertilizer are combined, and finally a layer of thin soil is covered on the top.
Example 5
Selecting Lushan mist tea with the seedling age of 5 years for tea tree seedlings to produce a tea garden, wherein the first topdressing time is 3 months and 7 days, the second topdressing time is 5 months and 21 days, and the third topdressing time is 7 months and 20 days. When the three times of topdressing are applied, the biomass charcoal is applied to the outer edge of the crown in a ditching mode under the outer edge, 1500kg of biomass charcoal with the water content of 9 percent and the granularity of 0.7mm, 2000kg of stable manure and 230kg of calcium magnesium phosphate fertilizer are applied to each mu of the three times of topdressing, and the weight ratio of the biomass charcoal, the stable manure and the calcium magnesium phosphate fertilizer used in the first topdressing, the second topdressing and the third topdressing is 4: 3: 3. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the stable manure and the calcium magnesium phosphate fertilizer are applied into the soil layer by layer in a concentrated strip application mode, soil is covered layer by layer, the soil and the fertilizer are blended, and finally a layer of thin soil is covered on the top.
Example 6
Selecting Lushan mist tea with the seedling age of 10 years for producing a tea garden, wherein the first topdressing time is 3 months and 2 days, the second topdressing time is 5 months and 27 days, and the third topdressing time is 8 months and 13 days. And (2) ditching and applying the biomass charcoal just below the outer edge of the crown when the three times of topdressing are applied, wherein the biomass charcoal with the water content of 10 percent and the granularity of 1mm, the compost of 10000kg and the superphosphate of 230kg are applied to each mu in total for the three times of topdressing, and the weight ratio of the biomass charcoal, the compost and the superphosphate used in the processes of the first topdressing, the second topdressing and the third time is 5: 2.5: 2.5. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the compost and the calcium superphosphate are applied into the soil layer by layer in a concentrated strip application mode, soil is covered layer by layer, soil and fertilizer are combined, and finally a layer of thin soil is covered on the top.
Example 7
Selecting Lushan mist tea with the seedling age of 15 years for tea tree seedlings to produce a tea garden, wherein the first topdressing time is 3 months and 1 day, the second topdressing time is 5 months and 25 days, and the third topdressing time is 8 months and 10 days. When the three topdressing is applied, the biomass charcoal is applied to the outer edge of the crown in a ditching manner under the outer edge, the biomass charcoal with the water content of 10 percent and the granularity of 1mm, the compost of 11000kg and the urea of 60kg are applied to each mu of the three topdressing in total, and the weight ratio of the biomass charcoal, the compost and the urea used in the processes of the first topdressing, the second topdressing and the third topdressing is 5: 2.5: 2.5. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the compost and the urea are applied into the soil layer by layer in a concentrated strip application mode, soil is covered layer by layer to achieve soil-fertilizer compatibility, and finally a layer of thin soil is covered on the uppermost surface.
Example 8
Selecting Lushan mist tea with the age of 18 years of tea tree seedlings to produce a tea garden, wherein the first topdressing time is 3 months and 9 days, the second topdressing time is 5 months and 28 days, and the third topdressing time is 7 months and 30 days. And (2) ditching and applying the biomass charcoal just below the outer edge of the crown when the three times of topdressing are applied, wherein the biomass charcoal with the water content of 7 percent and the granularity of 0.5mm, the stable manure of 1700kg and the potassium sulfate of 15kg are applied to each mu of the three times of topdressing, and the weight ratio of the biomass charcoal, the stable manure and the potassium sulfate used in the processes of the first topdressing, the second topdressing and the third topdressing is 4: 3: 3. when the fertilizer is applied, the biomass charcoal and the soil are fully and uniformly mixed, the manure and the potassium sulfate are applied into the soil layer by layer in a concentrated strip application mode, the soil is covered layer by layer, the soil and the fertilizer are mixed, and finally, a layer of thin soil is covered on the uppermost surface.
And (4) analyzing results: compared with the Lushan mist tea garden soil without the biomass charcoal, the Lushan mist tea garden soil with the biomass charcoal can obviously increase the levels of organic matters, total nitrogen, total phosphorus, total potassium, alkaline hydrolysis nitrogen, available phosphorus and quick-acting potassium in the Lushan mist tea garden soil, the increase amount is more than 10%, the soil fertility of the Lushan mist tea garden is obviously improved, and the Lushan mist tea garden is obviously better in growth vigor.
According to the embodiments, the invention provides a method for improving soil fertility of a tea garden by using biomass charcoal, wherein the biomass charcoal, an organic fertilizer and a chemical fertilizer are used as additional fertilizers and applied to soil with the depth of 5-15 cm according to the seedling age of tea tree seedlings. The method not only provides effective technology and method for improving soil fertility and developing and operating with high quality, high yield and high efficiency in the tea garden, particularly the Lushan mist tea garden, but also effectively disposes the agricultural and forestry waste resources, achieves harmlessness, reduction and recycling of solid waste, enlarges the utilization range of biomass charcoal, prolongs the industrial chain and is beneficial to the development of circular economy.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for improving soil fertility of a tea garden by using biomass charcoal is characterized by comprising the following steps: according to the seedling age of tea tree seedlings, biomass charcoal, organic fertilizer and chemical fertilizer are used as top application and applied to soil with the depth of 5-15 cm.
2. The method for improving the soil fertility of the tea garden by using the biomass charcoal, according to claim 1, is characterized in that when the seedling age of the tea tree seedling is 1-4 years, the biomass charcoal, the organic fertilizer and the chemical fertilizer are applied in a ditch 5-15 cm away from the outer edge of a crown; when the seedling age of the tea tree seedling is 5 years or more, ditching and applying biomass carbon, organic fertilizer and chemical fertilizer right below the outer edge of the crown.
3. The method for improving the soil fertility of the tea garden by using the biomass charcoal as claimed in claim 2, wherein the biomass charcoal, the organic fertilizer and the chemical fertilizer are applied by uniformly mixing the biomass charcoal with the soil, the organic fertilizer and the chemical fertilizer are applied to the soil layer by layer, the soil is covered layer by layer, and the top of the soil is covered with a layer of soil.
4. The method for improving the soil fertility of the tea garden by using the biomass charcoal as claimed in claim 3, wherein the biomass charcoal has a water content of 5% -10%, a particle size of 0.1-1 mm, and a total application amount of 1000-2000 kg per mu.
5. The method for improving the soil fertility of the tea garden by using the biomass charcoal as claimed in claim 4, wherein the fertilizer is powdered rock phosphate, calcium magnesium phosphate, calcium superphosphate, urea or potassium sulfate.
6. The method for improving the soil fertility of the tea garden by using the biomass charcoal as claimed in claim 5, wherein the organic fertilizer is compost, and the total amount of the organic fertilizer applied is 10000-15000 kg per mu.
7. The method for improving the soil fertility of the tea garden by using the biomass charcoal as claimed in claim 6, wherein the organic fertilizer is one or more of green manure, grass manure, straw, cake manure or stable manure, and the total application amount is 1000-2000 kg per mu.
8. The method for improving the soil fertility of the tea garden by using the biomass charcoal, according to claim 7, wherein when the fertilizer is ground phosphate rock, calcium magnesium phosphate fertilizer and calcium superphosphate, the application amount is 200-300 kg per mu; when the fertilizer is urea, the application amount is 50-70 kg per mu; when the fertilizer is potassium sulfate, the application amount is 10-20 kg per mu.
9. The method for improving soil fertility of a tea garden by using biomass charcoal according to any one of claims 1 to 8, wherein when the tea garden is a single tea garden with 1 to 4 years of seedling age of tea seedlings, the first topdressing time is 3 last ten days of month, the second topdressing time is 5 last ten days of month or 7 to 8 months, and the weight ratio of the biomass charcoal, the organic fertilizer and the chemical fertilizer used in the two topdressing processes is 5 to 6: 4 to 5.
10. The method for improving soil fertility of a tea garden by using biomass charcoal according to any one of claims 1 to 8, wherein when the tea garden is a densely planted tea garden with 1 to 4 years of seedling age of tea tree seedlings or a tea garden with 5 years or more of seedling age of tea tree seedlings, the first topdressing time is 3 last ten days, the second topdressing time is 5 last ten days, the third topdressing time is 7 to 8 months, and the weight ratio of the biomass charcoal, the organic fertilizer and the chemical fertilizer used in the third topdressing process is 4 to 5: 2.5-3: 2.5 to 3.
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| CN106550640A (en) * | 2016-11-17 | 2017-04-05 | 华侨大学 | It is a kind of to improve tea garden soil and improve the cultural method of tea leaf quality |
| CN108441222A (en) * | 2018-03-30 | 2018-08-24 | 华中农业大学 | A kind of tea place acidified soil conditioner and preparation method thereof |
| CN108276231A (en) * | 2018-04-19 | 2018-07-13 | 江西省农业科学院土壤肥料与资源环境研究所 | A kind of Soil organic phosphorus fractions modifying agent, preparation method and applications |
| CN108849208A (en) * | 2018-08-13 | 2018-11-23 | 孝昌县凤凰茶叶有限责任公司 | Tea planting applying fertilizer method |
| CN109644764A (en) * | 2019-01-21 | 2019-04-19 | 光山县诚信实业开发有限责任公司 | A kind of field planting method of white tea seedling |
| CN111116275A (en) * | 2020-01-17 | 2020-05-08 | 中国农业科学院茶叶研究所 | Efficient organic fertilizer special for tea garden and application method thereof |
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