Organic fertilizer reduced carbon and nitrogen in runoff and buffered soil acidification in tea plantations: Evidence in nutrient contents and isotope fractionations

Xie, Shilin; Yang, Fangxing; Feng, Hanxiao; Yu, Zhiming; Liu, Chengshuai; Wei, Chaoyang; Liang, Tao

doi:10.1016/j.scitotenv.2020.143059

Cited by 79 publications

(42 citation statements)

References 55 publications

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“…The highest pH in the Bogor soil was associated with the highest C-organic and N total. This finding highlighted the role of soil organic matter as a buffer to soil pH, leading to preserve soil C and N pool [ 38 ].…”

Section: Resultsmentioning

confidence: 92%

Relationship among Agroclimatic Variables, Soil and Leaves Nutrient Status with the Yield and Main Composition of Kaffir Lime (Citrus hystrix DC) Leaves Essential Oil

et al. 2021

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Previous studies revealed the impact growing location has on the quantity and quality of essential oils derived from numerous Citrus spp., except on the kaffir lime. This study aims to analyze the relationship shared by agroclimatic variables and soil-plant nutrient status to kaffir lime leaves essential oil yield and main composition. The experiment was conducted between February and April 2019 in four growing locations, namely Bogor (6°36′36″ S, 106°46′47″ E), West Bandung (6°48′12″ S, 107°39′16″ E), Pasuruan (7°45′5″ S, 112°40′6″ E) and Tulungagung (8°6′27″ S, 112°0′35″ E). The highest essential oil yield was obtained from Bogor (1.5%), while the lowest one was from Tulungagung (0.78%). The yield was positively and significantly correlated with the rainfall, soil organic carbon, soil pH, and macronutrient levels, i.e., nitrogen, phosphorus, and magnesium. Citronellal, the major component in metabolites’ profile of kaffir lime leaves essential oils, was significantly affected by the growing location. The absolute content of citronellal was positively and significantly correlated with the actual soil pH and leaf Ca content; furthermore, it negatively correlated with the leaf content of Fe, Mn, Zn, Cu. Pearson correlation analysis also showed (i) a negative significant correlation between the relative percentage of citronellol and annual rainfall intensity; (ii) a negative significant correlation between altitude and relative percentage of caryophyllene, and (iii) a positive significant correlation between the relative percentage of linalool and leaf K content.

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Section: Resultsmentioning

confidence: 92%

Relationship among Agroclimatic Variables, Soil and Leaves Nutrient Status with the Yield and Main Composition of Kaffir Lime (Citrus hystrix DC) Leaves Essential Oil

et al. 2021

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“…Many of the carbon-containing compounds produced by photosynthesis are used to synthesize protein under conditions of N insufficiency or excess, which restricts the conversion of some sugars to polyphenols and results in an overall decrease in these compounds [20]. A short-term field experiment showed that optimized N fertilization significantly reduced the phenol-ammonia ratio in tea leaves [16], and the same phenomena also occurred in the long-term N application ( Figure 3B). In addition, long-term N application decreased the content of benzyl alcohol and 2-phenylethanol ( Figure 5A), affecting the formation of aroma compounds during the withering process of tea.…”

Section: Effect Of Long-term Nitrogen Application In Decreasing Metabmentioning

confidence: 87%

“…According to official statistics, high N application cultivation is universal in tea plantations in China; the national average application is 491 kg/hm 2 N per year [ 14 ]. However, the utilization rate of N fertilizer is only about 30%, while the rest is lost through ammonia volatilization, N 2 O emission, surface leaching and underground runoff, resulting in fertilizer waste and environmental pollution [ 15 , 16 , 17 ]. It has been shown that reasonable application of N fertilizer (200–350 kg/hm 2 ) can significantly increase tea yield and also affect quality-related components of fresh tea leaves, such as polyphenols, amino acids, caffeine and aroma compounds [ 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Long-Term Nitrogen Fertilization on the Formation of Metabolites Related to Tea Quality in Subtropical China

Chen

Wang

et al. 2021

Metabolites

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As a main agronomic intervention in tea cultivation, nitrogen (N) application is useful to improve tea yield and quality. However, the effects of N application on the formation of tea quality-related metabolites have not been fully studied, especially in long-term field trials. In this study, a 10-year field experiment was conducted to investigate the effect of long-term N application treatments on tea quality-related metabolites, their precursors, and related gene expression. Long-term N application up-regulated the expression of key genes for chlorophyll synthesis and promoted its synthesis, thus increasing tea yield. It also significantly increased the contents of total free amino acids, especially l-theanine, in fresh tea leaves, while decreasing the catechin content, which is conducive to enhancing tea liquor freshness. However, long-term N application significantly reduced the contents of benzyl alcohol and 2-phenylethanol in fresh tea leaves, and also reduced (E)-nerolidol and indole in withered leaves, which were not conducive to the formation of floral and fruity aroma compounds. In general, an appropriate amount of N fertilizer (225 kg/hm2) balanced tea yield and quality. These results not only provide essential information on how N application affects tea quality, but also provide detailed experimental data for field fertilization.

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“…The responses of all dependent variables given the treatment showed that the soil condition needed external input, synthetic fertilizers, and organic fertilizers (J. Song et al, 2020;Xie et al, 2020). The association between variables has been analyzed by calculating the Correlation value (R), as presented in Table 3.…”

Section: Characteristics Of Agricultural Soil and Effect Of Treatment Omentioning

confidence: 99%

Sustaining farmers life affected by the natural disaster; an implication during the covid-19 pandemic

Cyio

Anshary

Mahfudz

et al. 2021

Preprint

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Purpose This study aims to measure two investigate and identify effect of treatment factors: Organic Material and Triple Super Phosphate Fertilizer and also to study four main components: Extension (X1), Agricultural Production Facilities (X2), Government Assistance (X3), and Covid-19 dissemination (X4) information. Materials and methods The data collected through surveys and interviews include; (i) soil characteristics data and (ii) socio-economic conditions of farmers affected by the disaster and the Covid-19 pandemic. The statistical analysis used is Principal Component Analysis (PCA) using the Paleontological Statistics (PAST) application.Result and Discussion The result showed the M3 P3 treatment combination gave the highest effect: pH-H2O (6.13), P-total (52.28 mg/100g), P-available (28.62 ppm), plant dry weight (713.75 g/plot), P-uptake (0.58 g/plant), and Corncob (6.2 t/ha). The main component, the most effective factor to the successive variation X2 (PC-1) 75.55%; X3 (PC-2) 18.22%; and X4 (PC-3) 3.94%, while X1 (PC-4) did not result in variation (2.28%). The probability analysis showed farmers post-Earthquake income was affected by production facilities provisions (X2) p (0.015) < µ(0.05) and Government aid (X3) p (0.035) <µ(0.05) and amidst pandemic (X3) p (0.028) <µ (0.05) by government aid, with Correlation Value of each Jono Oge (R) 0.91 and Toaya (R) 0.64, indicating main component factor in Jono Oge is higher at (0.91) since land was displaced by Liquefaction while (0.64) in Toaya—the ground failure was by Earthquake.

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Organic fertilizer reduced carbon and nitrogen in runoff and buffered soil acidification in tea plantations: Evidence in nutrient contents and isotope fractionations

Cited by 79 publications

References 55 publications

Relationship among Agroclimatic Variables, Soil and Leaves Nutrient Status with the Yield and Main Composition of Kaffir Lime (Citrus hystrix DC) Leaves Essential Oil

Relationship among Agroclimatic Variables, Soil and Leaves Nutrient Status with the Yield and Main Composition of Kaffir Lime (Citrus hystrix DC) Leaves Essential Oil

Effects of Long-Term Nitrogen Fertilization on the Formation of Metabolites Related to Tea Quality in Subtropical China

Sustaining farmers life affected by the natural disaster; an implication during the covid-19 pandemic

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