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Prapasiri Tongsiri
Department of Soil and Water Conservation, National Chung Hsing University, Taichung 40227, Taiwan

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Journal article
Published: 27 May 2020 in Sustainability
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The soil properties, climate, type of management, and fermentation process critically affect the productivity and quality of tea. In this study, tender tea leaves were collected from central Taiwan, and organic components in their infusions as well as physical and chemical soil properties differentiated using aerial photographs where good (G) and bad (B) growth exhibitions were determined. Eleven physical and chemical soil properties as well as five compounds in tea infusions were analyzed to determine the main factor that affects the growth of these tea trees. The Fleiss’ kappa statistic results revealed that the wet aggregate stability, pH, and exchangeable potassium content exhibit the most significant effect, with scores of 0.86, 0.64, and 0.62, respectively. Soil quality calculated using the mean weight diameter based on 11 soil properties revealed that ~67% of the total score of G is greater than that of B. Generally, contents of total polyphenols (51.67%) and catechins (51.76%) in the infusions of B were greater than those of G. In addition, significant positive correlations between the free amino acids content and soil properties, including pH and copper content, were observed. However, a negative correlation between the free amino acids and flavone contents and most of the soil properties was observed. The survey data set obtained from this study can provide useful information for the improved management of tea plantations.

ACS Style

Prapasiri Tongsiri; Wen-Yu Tseng; Yuan Shen; Hung-Yu Lai. Comparison of Soil Properties and Organic Components in Infusions According to Different Aerial Appearances of Tea Plantations in Central Taiwan. Sustainability 2020, 12, 4384 .

AMA Style

Prapasiri Tongsiri, Wen-Yu Tseng, Yuan Shen, Hung-Yu Lai. Comparison of Soil Properties and Organic Components in Infusions According to Different Aerial Appearances of Tea Plantations in Central Taiwan. Sustainability. 2020; 12 (11):4384.

Chicago/Turabian Style

Prapasiri Tongsiri; Wen-Yu Tseng; Yuan Shen; Hung-Yu Lai. 2020. "Comparison of Soil Properties and Organic Components in Infusions According to Different Aerial Appearances of Tea Plantations in Central Taiwan." Sustainability 12, no. 11: 4384.

Journal article
Published: 19 July 2018 in Sustainability
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Poultry-litter biochars (PLBs), which were prepared at two pyrolytic temperatures, were applied to the soils of croplands with four consecutive harvests of water spinach to assess the effects of PLBs on the soil properties and the growth of water spinach. The results show that PLB amendment resulted in an increase of soil pH. The electrical conductivity values, and the concentrations of extractable inorganic nitrogen, exchangeable potassium, and available phosphorus in the soils drastically increased in the 0.5% and 1% biochar-amended soils. However, most of the significant changes due to PLB amendment disappeared after four consecutive harvests of water spinach. The growth of water spinach was enhanced in the soils amended with PLBs, especially the one prepared at 350 °C. Nonetheless, the application of 1% PLBs to the soil resulted in an imbalance between calcium and magnesium in water spinach.

ACS Style

Chun-Hui Yu; Shan-Li Wang; Prapasiri Tongsiri; Mei-Ping Cheng; Hung-Yu Lai. Effects of Poultry-Litter Biochar on Soil Properties and Growth of Water Spinach (Ipomoea aquatica Forsk.). Sustainability 2018, 10, 2536 .

AMA Style

Chun-Hui Yu, Shan-Li Wang, Prapasiri Tongsiri, Mei-Ping Cheng, Hung-Yu Lai. Effects of Poultry-Litter Biochar on Soil Properties and Growth of Water Spinach (Ipomoea aquatica Forsk.). Sustainability. 2018; 10 (7):2536.

Chicago/Turabian Style

Chun-Hui Yu; Shan-Li Wang; Prapasiri Tongsiri; Mei-Ping Cheng; Hung-Yu Lai. 2018. "Effects of Poultry-Litter Biochar on Soil Properties and Growth of Water Spinach (Ipomoea aquatica Forsk.)." Sustainability 10, no. 7: 2536.