Selenium-accumulating and selenium-enriching fertilizing method for tea trees

A fertilization method and selenium-enriched fertilizer technology, applied in fertilization methods, microbial-based methods, fertilization devices, etc., can solve the problems of low selenium utilization rate, soil environmental pollution, uncertainty of selenium conversion rate, etc., and achieve plant selenium absorption The effect of promoting and improving the soil environment and preventing plant root disease

Pending Publication Date: 2021-09-24
SHAANXI SCI TECH UNIV
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AI Technical Summary

Problems solved by technology

There are two main methods of artificial selenium application, soil selenium application and foliar spraying. Soil selenium application has the characteristics of long timeliness and high safety,

Method used

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  • Selenium-accumulating and selenium-enriching fertilizing method for tea trees

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0041] Example 1

[0042] Fertilization method of selenium selenium, including the following steps:

[0043] 1, the whole land ditch: Ditch chooses to maintain soil moisture after the rain or after the land is raised. The binding groove is opened at 10 ~ 15cm from the tea tree, and the ditch depth is 20 ~ 25cm, and the width is about 10 to 15 cm;

[0044] 2, administration of basic fertilizer: Every year, the spring and early spring season, in the opening of the ditch, the base fertilizer is 1 year after 1 year, the base fertilizer is mixed by the oil residue, the ammonium carbonate fertilizer is mixed according to the mass ratio of 2: 1, carrying the compost fermentation result. The temperature is 40 ° C during the fermentation process, and it has undergone 30-40 days. The oil residue is a mixture of any one or more of oil tea oil slag, soybean oil residue, sesame oil residue, peanut oil residue, rapeseed oil residue, castor oil slag. The amount of base fertilizer is 2000kg / hm ...

Example Embodiment

[0070] Example 2

[0071] In a green tea planting base, an experimental tea garden is organized, a total of 9 ridgetts, about 10m per ridge area. 2 , Total area of ​​about 90m 2 , Choose 2 ridgetes, do not process, as a blank control. This experimental community bottom tea selenium content is 0.11-0.13 mg / kg.

[0072] The method of fertilizing the tea tree polyorbite of the above-mentioned green tea planting base is made by the method of the second embodiment of the present invention.

[0073] Select 4 ridge tea, in mid-January, the tea tree is sleeping, and the soil is wet after the rain, close to the tea tree base 10 to 15 cm, the ditch depth is 20-25 cm, the groove is 10-15 cm. The tea area of ​​each ridge is about 10m 2 .

[0074] Then, in the open trench, a uniform application of organic base fertilizer, 1.5kg for each ridge. Bacillus granules were evenly sprinkled into the ditch, and 30 g was applied per ridge. Finally, 30 g of sodium selenite is added to the 2L water diss...

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Abstract

The invention provides a selenium-accumulating and selenium-enriching fertilizing method for tea trees, which comprises the following steps: S1, ditching at a position 10-15 cm away from the base of each tea tree, wherein the ditching depth being 20-25 cm, and the ditching width being 10-15 cm; S2, in late winter and early spring every year, applying a base fertilizer to ditches, uniformly applying bacillus subtilis and a selenium-rich fertilizer to the base fertilizer, and then covering soil, wherein the application amount of the base fertilizer is 1500-2000 kg/hm<2>; the application amount of the bacillus subtilis is 25-30 kg/hm<2>, and the effective viable count is greater than or equal to 0.2 billion/g; the application amount of the selenium-rich fertilizer is 25-30 kg/hm<2>; and S3, 8 months after the selenium-rich fertilizer is applied, spraying selenium-rich photosynthetic bacterial fertilizer, wherein the content of sprayed selenium is 75-80 g/hm<2>; the selenium-rich photosynthetic bacterial fertilizer is formed by mixing a selenium-rich photosynthetic bacteria agent and an organic silicon additive with water; and the use amount of the selenium-rich photosynthetic bacterial agent is 500-530 L/hm<2>, and the application amount of the organic silicon additive is 2500-2800 mL/hm<2>. Tea trees are subjected to selenium-rich cultivation in a mode of combining soil application and foliage spraying of a fungicide and a selenium fertilizer, and the effects of efficient selenium enrichment and yield increase are achieved.

Description

technical field [0001] The invention relates to the technical field of selenium-enriched tea planting and breeding, in particular to a method for fertilizing tea trees to accumulate selenium and enrich selenium. Background technique [0002] Selenium is an essential trace element for the human body and participates in the construction of enzyme activity centers such as glutathione peroxidase, thioredoxin reductase, and deiodinase. At the same time, selenium, as a component of 25 selenoproteins, plays an important role in immune regulation, antioxidant defense system and thyroid hormone metabolism. However, the average selenium intake of Chinese residents is 43.3 μg / d, which is lower than the minimum daily intake of 50 μg / d recommended by the Chinese Nutrition Association in 1988. Moreover, my country's selenium-rich areas are limited, and hundreds of millions of people in about 22 provinces are in selenium-deficient or low-selenium areas. Therefore, the development of sele...

Claims

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Application Information

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IPC IPC(8): A01C21/00C05G3/00C05G3/80C05G5/20C12N1/20C12R1/38
CPCA01C21/005C05F11/08C05G3/00C05G5/20C05C3/00C05G3/80C12N1/20C05D9/00C05F5/002
Inventor 昝丽霞李新生张文夷燕飞付静
Owner SHAANXI SCI TECH UNIV
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