Abstract
[Objective] The research aimed to get know of the soil nutrient conditions and study the leaf fertilization technology of in tea garden. [Method] Foliar fertilizer was prepared according to the determination results of soil nutrient and the fertilizer demand law of tea tree in tea garden. The leaf nutrient of tea tree was regulated and the yield and the quality of tea leaf were analyzed. [Result] The pH value of the soil in the tea garden was 4.21, which could be increased till the suitable pH range for tea leaf by applying partial alkaline fertilizers. The contents of available phosphorus, potassium, magnesium in the garden were 14.00, 83.00 and 24.60 mg/kg resp., which were all lower than the soil index in high-quality tea garden. The content of available nitrogen was as high as 213 mg/kg and the contents of iron, manganese, cuprum, calcium and zinc were 62.40, 20.17, 1.93, 2.80 and 2.53 mg/kg respectively. The prepared leaf fertilizer contained nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, zinc, manganese, molybdenum and boron. It was sprayed twice on the 20th and 10th d before picking tea leaf, and the yield of tea leaf was increased by 10 %, the content of tea polyphenol was increased by 2.02 % and the contents of caffeine, amino acids and water extracts were all increased by more than 1 %. [Conclusion] This research provided theoretical foundation for scientific fertilization in tea garden.
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Claims 4
Claim · model-written summary
Available phosphorus, potassium and magnesium in the tea garden soil were lower than the high-quality garden index.
Verbatim
e1“The contents of available phosphorus, potassium, magnesium in the garden were 14.00, 83.00 and 24.60 mg/kg resp., which were all lower than the soil index in high-quality tea garden”
Claim · model-written summary
Foliar fertilizer increased tea leaf yield by 10%.
Not reportedComparator
Verbatim
e2“It was sprayed twice on the 20th and 10th d before picking tea leaf, and the yield of tea leaf was increased by 10 %”
e3“Foliar fertilizer was prepared according to the determination results of soil nutrient”
Claim · model-written summary
Foliar fertilizer increased tea polyphenol content by 2.02%.
- Taxon
- teae4
- Treatment
- Foliar fertilizere3
- Outcome
- content of tea polyphenole4
- Direction
- increasede4
- Value
- 2.02 %e4
Not reportedComparator
Verbatim
e3“Foliar fertilizer was prepared according to the determination results of soil nutrient”
e4“the content of tea polyphenol was increased by 2.02 %”
Claim · model-written summary
Foliar fertilizer increased caffeine, amino acids and water extracts by more than 1% in tea.
- Taxon
- teae4
- Treatment
- Foliar fertilizere3
- Outcome
- caffeine, amino acids and water extractse5
- Direction
- increasede5
- Value
- more than 1 %e5
Not reportedComparator
Verbatim
e3“Foliar fertilizer was prepared according to the determination results of soil nutrient”
e4“the content of tea polyphenol was increased by 2.02 %”
e5“the contents of caffeine, amino acids and water extracts were all increased by more than 1 %”
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