Studies on the mineral nutrition of tea

Willson, K. C.

doi:10.1007/bf00017939

Cited by 9 publications

(3 citation statements)

References 10 publications

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“…By contrast, the biomass induced by high concentrations of ferrous sulfate with sulfuric acid was lower than that in the CK treatment, suggesting that a high concentration of ferrous sulfate with sulfuric acid restrained the growth of the tea plants. This reduction, confirmed by our data showing high concentration of ferrous sulfate with sulfuric acid impeded the absorption of other nutrients (Table 5), is in line with previous studies showing Ca in the soil restrained the growth of tea plants (Willson et al 1975;Y.H. Wang et al 2010).…”

Section: Discussionsupporting

confidence: 93%

Effects of ferrous sulfate with sulfuric acid on tea (Camellia sinensis(L.) O. Kuntz) soil environment

Wang

Ding

2013

Soil Science and Plant Nutrition

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In brown tea soil, the effects of ferrous sulfate with sulfuric acid on soil environment and tea plant (Camellia sinensis (L.) O. Kuntz) growth were examined by enzyme activity, microbe quantity, nutrients in rhizosphere soil, and the nutrients and dry matter weight in the tea plant. We found that the pH value in the brown soil was significantly decreased by ferrous sulfate with sulfuric acid treatments, compared with the value in unfertilized control (CK) or sulfuric acid treatments. The acid phosphatase activities of 3 g kg -1 ferrous sulfate with 0.05 mL L -1 sulfuric acid were increased by 210.53%. Interestingly, the quantities of fungi were increased by 19.76% and the bacteria and actinomyces were decreased in the CK treatment. Specifically, the nitrogen and magnesium in rhizosphere soil and leaves were significantly increased by the low concentrations of ferrous sulfate with 0.05 mL L -1 sulfuric acid, whereas the dry matter weight under 3 g kg -1 ferrous sulfate with 0.05 mL L -1 sulfuric acid was increased by 36.22% in the CK treatment. Thus, we concluded that ferrous sulfate with sulfuric acid affected not only the soil environment but also the growth of tea plants. Our results suggested that the concentration of ferrous sulfate at 3 g kg -1 soil diluted in 0.05 mL L -1 sulfuric acid could be considered a good soil conditioner to make a suitable soil environment for tea production.

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Section: Discussionsupporting

confidence: 93%

Effects of ferrous sulfate with sulfuric acid on tea (Camellia sinensis(L.) O. Kuntz) soil environment

Wang

Ding

2013

Soil Science and Plant Nutrition

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“…The concentration of potassium is higher in two leaves and a bud (about 2.0%) than the third leaf. Potassium concentration is 1.75% in first leaf with a bud and 1.57% in third leaf clearly indicate that potassium is limiting yield 74 which is in full agreement with the results of the present investigation.…”

Section: Brandssupporting

confidence: 92%

Evaluation for the Qualitative Status of Eight Marketed Teas of Finlay Brand Produced In Bangladesh

2018

IJGHC

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Eight different marketed teas of Finlay brand available in the local markets of Bangladesh viz; Premium tea, Gold tea, BOP tea, Finlay's tea, Dust (WP) tea, English breakfast tea bag, Gold double chamber tea bag and Finlay tea bag were experimented before expiry dates to evaluate their qualitative status viz; Caffeine, Total Polyphenol (TP), Total Catechin (TC), Theaflavin (TF), Thearubigin (TR), Theabrownin (TB), Highly polymerized substances (HPS), Total liquor color (TLC), Antioxidant activity (AA), Briskness index (BI), Color index (CI) and nutrient contents (N, P, K, Ca, Na and Fe). All the studied qualitative parameters were found to be varied significantly among the teas of Finlay brand. The values of caffeine and antioxidant activity (AA) were found to be changed from 6.42% (English breakfast tea bag) to 3.5% (BOP tea) and 88.52% (Gold tea) to 86.28% (Finlay tea bag) respectively. Likewise, the estimated maximum values of TF, TB, TC, TLC, and TP content were detected to be 1.15%, 13.75%, 5.93%, 4.21 and 38.3% respectively in English breakfast tea bag but maximum value of HPS was estimated to be 5.28% in Gold tea. On the contrary, minimum TF, TC, TLC, HPS and TP were found to be 0.71%, 4.24%, 3.4, 3.96% and 26.81% in Dust (WP) tea respectively whereas minimum value of TB was found to be 5.72% in Gold tea. In case of TR, the value ranged from 18.42% (BOP tea) to 9.32% (Finlay tea). On the other hand, the highest CI was determined to be 6.36 in Finlay's tea whilst maximum BI was detected to be 24.13 in BOP and both the CI and BI was found to be minimum (4.55 and 11.91) in Dust (WP) tea. Moreover, the highest average value of N, P, K, Na and Fe contents Evaluation … K. M. Mesbaul Alam et al.

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“…(1978) üç sürgün döneminde çay yapraklar ı n ı n potasyum içeriklerinin %1.39-1.95 aras ı nda de ğ i ştiğ ini belirlemişlerdir. Her üç hasat döneminde belirlenen çay yapra ğı potasyum içerikleri Willson (1975) tarafı ndan belirlenen sinir de ğer (%1.57) ile karşı la şt ı rı ld ığı nda ve optimum geli ş me için yapraklar ı n potasyum içeri ğ inin %1.8-2.1 (Sarishvili ve Burchuladze, 1977) aras ı nda olmas ı dikkate al ı nd ığı nda, çayl ı klara potasyumlu gübre uygulamas ı n ı n mutlaka yap ı lmas ı gerekli oldu ğ u anla şı lmaktad ı r.…”

Section: Bulgular Ve Tart ışMaunclassified

Değişik Dönem ve Dozlarda Uygulanan Yaprak Gübresinin Çay Bitkisi Yaprağının Kalite ve Mineral Madde İçerikleri Üzerine Etkisi

;OKAY¹

2000

Tarım Bilimleri Dergisi

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Özet: Tek ba şı na ve NPK ile birlikte farkl ı dönem ve miktarlarda uygulanan yaprak gübresinin çay bitkisi yaprağı n ı n ekstrakt, toplam polifenol, kül, N, P, K, Ca, Na, Fe, Mn, Znve Cu içerikleri üzerine olan etkileri ara şt ı r ı lm ışt ı r. Yaprak gübresi a) Nisan ba şı , b) I. hasat sonu, c) Il. hasat sonu olmak üzere 3 dönemde ve % O, 1.5, ve 3.0 konsantrasyonlarda uygulanm ıştı r.Deneme sonunda, farkl ı dönem ve dozlarda tek ba şı na ve NPK ile birlikte uygulanan yaprak gübresinin çay yaprağı n ı n ekstrakt, toplam polifenol, kül, N, P, K, Ca, Na, Fe, Mn, Zn ve Cu içerikleri üzerine olan etkileri önemli bulunmu ştur. Kontrolle karşı la ştı rı ld ığı nda, yapra ğı n ekstrakt, toplam polifenol, kül, K, Na, Fe, Mn, Zn ve Cu içerikleri uygulama konuları na ba ğ l ı olarak art ış ve azal ış lar göstermi ştir. Diğ er yandan, hasat dönemlerine ba ğ l ı olarak yapra ğı n ekstrakt, toplam polifenol, kül, N, K, Na, Fe, Mn ve Zn içerikleri azal ı rken, Ca içeri ğ i artm ıştı r. Genel olarak NPK ile birlikte farkl ı dönem ve dozlarda uygulanan yaprak gübresi yapra ğı n N, K, Fe, Mn ve Zn içerikleri üzerine etkisi daha belirgin olmu ştur.

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Studies on the mineral nutrition of tea

Cited by 9 publications

References 10 publications

Effects of ferrous sulfate with sulfuric acid on tea (Camellia sinensis(L.) O. Kuntz) soil environment

Effects of ferrous sulfate with sulfuric acid on tea (Camellia sinensis(L.) O. Kuntz) soil environment

Evaluation for the Qualitative Status of Eight Marketed Teas of Finlay Brand Produced In Bangladesh

Değişik Dönem ve Dozlarda Uygulanan Yaprak Gübresinin Çay Bitkisi Yaprağının Kalite ve Mineral Madde İçerikleri Üzerine Etkisi

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