Abstract
Soil acidification in Chinese tea plantations is widespread, and it has significantly affected the growth of tea trees; it was important to explore soil remediation of acidified tea plantations in depth for the sustainable development of tea industry. In this study, the effects of sheep manure fertilizer with different application depths on soil acidification, tea yield and quality, and soil nitrogen transformation in tea plantations were analyzed for five consecutive years from 2018 to 2022. The results showed that long-term use of sheep manure fertilizer significantly reduced soil acidification ( P < 0.05) in tea plantations, improved soil pH and soil ammonium nitrogen content, enhanced root activity and root nitrogen uptake capacity of tea trees, and thus improved tea yield and quality. The effect of different application depths of sheep manure fertilizer on tea yield and quality was mainly reflected in the transformation ability of soil ammonium nitrogen and nitrate nitrogen, which showed that high transformation ability of soil ammonium nitrogen and high ammonium nitrogen content were beneficial to high tea yield and vice versa, and the best effect was achieved when sheep manure was applied at a depth of 50 cm and 70 cm. The topsis analysis confirmed that sheep manure fertilization had a greater effect on root activity, ammonium nitrogen, ammonia intensity, and nifH gene. This study provided an important practical basis for the restoration of acidified tea plantation soil through sheep manure fertilizer management.
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Claims 7
Claim · model-written summary
Long-term sheep manure fertilization reduced soil acidification in tea plantations.
Verbatim
e0“long-term use of sheep manure fertilizer significantly reduced soil acidification ( P < 0.05) in tea plantations”
t0“Reasonable deep application of sheep manure fertilizer to alleviate soil acidification to improve tea yield and quality”
Claim · model-written summary
Sheep manure fertilizer improved plantation soil pH and ammonium nitrogen content.
Verbatim
e0“long-term use of sheep manure fertilizer significantly reduced soil acidification ( P < 0.05) in tea plantations, improved soil pH and soil ammonium nitrogen content”
t0“Reasonable deep application of sheep manure fertilizer to alleviate soil acidification to improve tea yield and quality”
Claim · model-written summary
Sheep manure enhanced tea root activity and root nitrogen uptake capacity.
- Taxon
- tea trees
Camellia sinensise0 - Treatment
- sheep manure fertilizere0
- Outcome
- root activity and root nitrogen uptake capacitye0
- Direction
- enhancede0
- Comparator
- tea plantationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“long-term use of sheep manure fertilizer significantly reduced soil acidification ( P < 0.05) in tea plantations, improved soil pH and soil ammonium nitrogen content, enhanced root activity and root nitrogen uptake capacity of tea trees”
Claim · model-written summary
Sheep manure improved tea yield and quality.
Verbatim
e0“long-term use of sheep manure fertilizer significantly reduced soil acidification ( P < 0.05) in tea plantations, improved soil pH and soil ammonium nitrogen content, enhanced root activity and root nitrogen uptake capacity of tea trees, and thus improved tea yield and quality”
t0“Reasonable deep application of sheep manure fertilizer to alleviate soil acidification to improve tea yield and quality”
Claim · model-written summary
Higher soil ammonium nitrogen transformation and content were beneficial to tea yield.
Verbatim
e0“high transformation ability of soil ammonium nitrogen and high ammonium nitrogen content were beneficial to high tea yield”
t0“Reasonable deep application of sheep manure fertilizer to alleviate soil acidification to improve tea yield and quality”
Claim · model-written summary
Manure depths of 50 cm and 70 cm gave the best effect on tea yield and quality.
Verbatim
e0“The effect of different application depths of sheep manure fertilizer on tea yield and quality was mainly reflected in the transformation ability of soil ammonium nitrogen and nitrate nitrogen, which showed that high transformation ability of soil ammonium nitrogen and high ammonium nitrogen content were beneficial to high tea yield and vice versa, and the best effect was achieved when sheep manure was applied at a depth of 50 cm and 70 cm”
t0“Reasonable deep application of sheep manure fertilizer to alleviate soil acidification to improve tea yield and quality”
Claim · model-written summary
TOPSIS analysis found greater sheep manure effects on root activity, ammonium nitrogen, ammonia intensity, and nifH gene.
Verbatim
e0“The topsis analysis confirmed that sheep manure fertilization had a greater effect on root activity, ammonium nitrogen, ammonia intensity, and nifH gene”
t0“Reasonable deep application of sheep manure fertilizer to alleviate soil acidification to improve tea yield and quality”
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