How application of agricultural waste can enhance soil health in soils acidified by tea cultivation: a review

Le, Viet San; Herrmann, Laetitia; Hudek, Lee; Nguyen, Thi Binh; Bräu, Lambert; Lesueur, Didier

doi:10.1007/s10311-021-01313-9

Cited by 32 publications

(24 citation statements)

References 165 publications

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“…When the soil pH value was between 4.0 and 4.5, it was considered as mild soil acidification, and when the pH value was below 4.0, it was considered as severe soil acidification (Mohammad et al, 2014;Mehra and Baker, 2017;Lin et al, 2022). Soil acidification destroyed the root system of tea trees and seriously affected their growth, which in turn led to lower tea yield and quality, and lower economic benefits (Wen et al, 2021;Yang et al, 2021;Le et al, 2022;Tang et al, 2022). In this study, the effect of different fertilization treatments on soil pH in tea plantations for four consecutive years was analyzed, and the results showed (Figure 2) that fertilization significantly changed soil pH in tea plantations, and the difference in soil pH between different fertilization treatments reached a significant level, with the highest soil pH in tea plantations using all organic fertilizers and the lowest in those using all chemical fertilizers (Figure 2A).…”

Section: Effect Of Fertilization Treatment On Soil Phmentioning

confidence: 99%

“…Amino acids, as primary metabolites of the tea tree, played an important role in the formation of umami and sweet taste of tea soup (Miyauchi et al, 2014;Ye et al, 2016;Jia et al, 2018;Chen et al, 2021). Many scholars usually used tea polyphenols, theanine, amino acids and catechin components as evaluation indicators in evaluating the effect of biotic or abiotic stress on tea quality, and their high content means good quality and vice versa (Yan et al, 2020;Wen et al, 2021;Le et al, 2022;Tang et al, 2022). Accordingly, this study evaluated the effects of different fertilization treatments and soil acidification on the quality of tea leaves with the above mentioned indicators, and the results showed (Figures 4, 5) that fertilization had a significant effect on the content of quality indexes (tea polyphenols, theanine, amino acids, caffeine, and catechin components) of tea leaves, and the differences in the content of quality indexes among different fertilization treatments reached a significant level, with the highest content of tea leaf quality indexes still found in tea plantations using organic fertilizers and the lowest in those using chemical fertilizers (Figures 4A, 5A).…”

Section: Effect Of Fertilization Treatment On Tea Qualitymentioning

confidence: 99%

“…Therefore, the use of organic fertilizer instead of chemical fertilizer was an effective way to improve soil acidification and an important path to achieve organic ecological agriculture. In recent years, numerous scholars have also carried out a large number of studies on soil acidification remediation by organic fertilizer, for example, rapeseed cake organic fertilizer (Xie et al, 2021), pig manure organic fertilizer (Ye et al, 2019;Cai et al, 2021), sheep manure organic fertilizer (Li et al, 2018;Le et al, 2022), cow manure organic fertilizer (Yin et al, 2022), commercial organic fertilizer (Lin et al, 2019;Wang et al, 2019) etc., to improve acidified soil. These studies confirmed that organic fertilizer could improve soil acidification.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

Wang

et al. 2022

Front. Plant Sci.

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Soil acidification in tea plantation seriously reduced the yield and quality of tea. It was an effective method to use organic fertilizer for acidified soil remediation to ensure tea yield and quality. In this study, different fertilizers were used to treat the acidified tea plantation soils for 4 consecutive years to analyze the remediation effect of different fertilizers on acidified soil and their effects on tea yield and quality. The results showed that during the period of 2017-2021, the soil pH value of tea plantation (S1) with long-term use of chemical fertilizer decreased continuously, from 3.07 to 2.82. In the tea plantation (S2), the soil pH value was stable between 4.26 and 4.65 in the combination of organic fertilizer and chemical fertilizer for a long time. The tea plantation (S3) with long-term use of organic fertilizer has a stable soil pH value between 5.13 and 5.33, which is most suitable for the growth of tea trees. The analysis results of tea yield and quality indicators (tea polyphenols, theanine, amino acids, caffeine, catechin components) showed that after long-term use of chemical fertilizer in S1 tea plantation, soil pH value decreased continuously, soil acidification intensified, tea tree growth was hindered, and tea yield and quality decreased continuously. S2 tea plantation used some organic fertilizer in combination with chemical fertilizer for a long time, the soil pH value gradually improved, soil acidification weakened, and tea yield and quality improved steadily. After long-term use of organic fertilizer in S3 tea plantation, soil acidification was significantly improved, which was conducive to the normal growth of tea trees and the yield and quality of tea reached the maximum. The results of interaction analysis showed that the long-term use of chemical fertilizer had a negative effect on the growth of tea trees, and the combination of organic fertilizer and chemical fertilizer improved the growth of tea trees to some extent, but the effect was poor, while the long-term use of organic fertilizer was the most beneficial to the growth of tea trees and most conducive to ensuring the yield and quality of tea. This study provides important practical significance for the remediation and fertilizer regulation of acidified tea plantation soils. In the process of field experiment, climate is a variable factor, and attention should be paid to the effect of climate change on fertilization efficiency in subsequent experiment.

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Section: Effect Of Fertilization Treatment On Soil Phmentioning

confidence: 99%

Section: Effect Of Fertilization Treatment On Tea Qualitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

Wang

et al. 2022

Front. Plant Sci.

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“…Several agricultural byproducts such as corncob, rice husk, bagasse, corn stover, coconut shell, banana peels, crop residues, etc. have been suggested and used in field trials to counter the "deforestation concern" [47][48][49] and tremendous amount of related work on agro-waste derived biochars so far has been carried out in China and various European countries [50,51] . Although there is research on biochars produced from individual agro-waste materials, comparable data on nutrients composition and plant availability of nutrients from agro-waste-derived biochars versus plant-and animal-based biochars are currently scarce.…”

Section: Nutrient Contents Of Biochars From Animal-and Plant-based Fe...mentioning

confidence: 99%

The use of biochar for reducing carbon footprints in land-use systems: prospects and problems

2022

Carbon Footprints

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Biochar, a carbonaceous solid material obtained from the pyrolysis of biomass, has received considerable research attention because of its unique properties and potential to improve crop yields and soil carbon (C) sequestration while reducing environmental degradation and carbon footprints (CF). This paper summarizes the available results on several aspects of biochar research from numerous studies despite their short-term nature. The studies have shown that (1) biochar from the same source added at a given rate to different soils could have different effects, particularly on phosphorus (P) release/retention, based on the respective soil properties; (2) the elemental composition of a feedstock (the biomass source used for biochar production) is not an indication of plant-nutrient availability; (3) pyrolysis temperature has a significant influence on the properties of the biochar, but the optimal temperature depends on the desired qualities of the product such as P release, cation exchange capacity, and surface area; and (4) the risk of nutrient loss during biochar application depends on the nutrient release potential of the biochar as well as the nutrient retention properties of the soil. Some evidence from nature suggests that biochar can hold C in soils for thousands of years, but the mechanisms involved are not fully understood. In general, the available results on the effect of biochar application on field crops have been variable and site-specific so that general conclusions cannot be drawn on their applicability to a wide spectrum of situations and systems. A number of researchable priorities were identified, including CF under biochar. Similarly, although the land application of biochar to decrease CF sounds like a promising proposition, rigorous long-term studies under farm settings are required before recommending it for large-scale adoption.

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“…Therefore, many scholars have also conducted a large number of studies on effects of animal organic fertilizers on the improvement of soil acidification and properties, such as sheep manure organic fertilizer [ 15 , 16 ], cow manure organic fertilizer [ 17 ], and pig manure organic fertilizer [ 18 , 19 ]. All these studies have shown that animal manure fertilizers can effectively improve soil, promote crop growth and improve the yield and quality of crops.…”

Section: Introductionmentioning

confidence: 99%

Effects of Long-Term Use of Organic Fertilizer with Different Dosages on Soil Improvement, Nitrogen Transformation, Tea Yield and Quality in Acidified Tea Plantations

Wang

Kang

et al. 2022

Plants

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In this study, sheep manure fertilizers with different dosages were used for five consecutive years to treat acidified tea plantation soils, and the effects of sheep manure fertilizer on soil pH value, nitrogen transformation, and tea yield and quality were analyzed. The results showed that soil pH value showed an increasing trend after a continuous use of sheep manure fertilizer from 2018 to 2022. After the use of low dosage of sheep manure fertilizer (6 t/hm2–15 t/hm2), tea yield, the content of tea quality indicators (tea polyphenols, theanine, amino acid, and caffeine) and soil ammonium nitrogen content, ammoniating bacteria number, ammoniating intensity, urease activity and protease activity showed increasing trends and were significantly and positively correlated to soil pH value, while the related indexes showed increasing and then decreasing trends after the use of high dosage of sheep manure fertilizer (18 t/hm2). Secondly, the nitrate nitrogen content, nitrifying bacteria number, nitrifying intensity, nitrate reductase activity, and nitrite reductase activity showed decreasing trends after the use of low dosage of sheep manure fertilizer and showed significant negative correlations with soil pH value, while the related indexes showed decreasing trends after the use of high dosage of sheep manure and then increased. The results of principal component and interaction analysis showed that the effects of sheep manure fertilizers with different dosages on tea yield and quality were mainly based on the transformation ability of ammonium nitrogen and nitrate nitrogen in the soil, and the strong transformation ability of ammonium nitrogen and the high ammonium nitrogen content in the soil were conducive to the improvement of tea yield and quality, and vice versa. The results of topsis comprehensive evaluation and analysis showed that the most influential effect on the fertilization effect was the ammonium nitrogen content in the soil and long-term treatment with 15 t/hm2 of sheep manure fertilizer had the highest proximity to the best fertilization effect. This study provided an important practical basis for the remediation and fertilizer management in acidified tea plantation soils.

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How application of agricultural waste can enhance soil health in soils acidified by tea cultivation: a review

Cited by 32 publications

References 165 publications

Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

The use of biochar for reducing carbon footprints in land-use systems: prospects and problems

Effects of Long-Term Use of Organic Fertilizer with Different Dosages on Soil Improvement, Nitrogen Transformation, Tea Yield and Quality in Acidified Tea Plantations

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