Method for lowering content of rare earth elements in new tips of tea trees
A technology of rare earth elements and tea trees, which is applied in the field of tea garden management and tea tree cultivation, can solve problems such as the inability to effectively control rare earth content, shorten the transportation distance of rare earths, and reduce tea production, and achieve the effects of beneficial governance, economic loss, and low cost
Active Publication Date: 2014-07-23
FUZHOU HUAMING TEA IND RES INST
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Problems solved by technology
Since the detection of rare earth content in tea has increased to 16 kinds of rare earth elements, even though the implementation of the above measures has reduced the content of rare earth elements in tea, the pass rate of oolong tea has still dropped to about 20%. Existing measures are still unable to effectively control the content of rare earth elements
In addition, the moderately tender picking of tea leaves reduces the output of tea, which may lead to an increase in tea prices under the situation that the production cost of famous and high-quality tea is increasing
At present, the dwarfing of tea trees in tea areas (tree height 30-40cm) is common. Although the tea gardens are put into production quickly, the transportation distance of rare earths in the tea trees is shortened. This may be one of the main reasons why rare earths still exceed the standard after taking measures.
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Embodiment Construction
[0016] A method for reducing rare earth element content in new shoots of tea trees, the steps are:
[0017] (1) Plant rare earth enrichment plants: Plant rare earth enrichment plants around the tea garden and between tea tree rows. Among them, rare earth-enriched arbor plants are planted around tea gardens, on main roads or between rows to enrich rare earth elements in the soil below 20cm of tea gardens. The velvety hickory and hickory can not only reduce the rare earth content in the soil, but also have high nutritional value and economic value; the herb rich in rare earth is widely planted in tea garden tree rows, beside roads, stairs and other gaps , mainly to enrich the rare earth in the soil above 20cm in the tea garden, such as ferns, and it can also benefit the water and soil conservation of the tea garden.
[0018] The rare-earth-enriched plant is a plant whose aerial rare earth element content reaches or exceeds 1000 μg / g, or a plant whose aerial rare earth element a...
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The invention provides a method for lowering content of rare earth elements in new tips of tea trees. The method comprises the steps of planting rare earth hyperaccumulators, increasing the height of the tea trees, properly carrying out tender picking, applying fertilizer or farm chemicals with zero or low rare earth content, and applying dolomite dust to a severely-acidized tea garden. The method is easy and convenient to implement, easy to operate and low in cost, under the premise that the production goals of the high quality and high yield and efficiency of tea leaves are not influenced, the content of the rare earth elements in the new tips of the tea trees is effectively lowered, the qualified rate of the content of the rare earth of the tea leaves is greatly improved, the treatment to soil rare earth pollution is further facilitated, and the economic losses caused by the problem of exceeding of the rare earth in the future domestic and oversea trading of the tea leaves can be avoided.
Description
technical field [0001] The invention belongs to the fields of tea tree cultivation and tea garden management, and in particular relates to a method for reducing the content of rare earth elements in new shoots of tea trees, and is especially suitable for tea areas where the background value of rare earth elements is relatively high or where moderately mature new shoots of tea trees are used as raw materials. Background technique [0002] Tea is one of the three major beverages in the world today. China is the origin of the tea tree, the birthplace of tea medicine and tea culture, and also the birthplace of the world's six major tea categories, red, green, black, green, white and scented tea. Among them, black tea , Oolong tea (that is, green tea), white tea and scented tea are special teas in my country. After more than 5,000 years of development, tea has been distributed and cultivated in many countries and regions in the six oceans of the world, among which Asia has the lar...
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IPC IPC(8): A01G1/00
Inventor 董青华
Owner FUZHOU HUAMING TEA IND RES INST