2013
DOI: 10.1590/s0034-737x2013000200018
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Effect of N and K doses in nutritive solution on growth, production and coffee bean size

Abstract: RESUMOCrescimento, produção e tamanho de grãos de café decorrentes de doses de N e K em solução nutritiva O suprimento adequado de nutrientes ao cafeeiro é essencial para obtenção de alta produtividade. O objetivo deste trabalho foi avaliar o efeito do nitrogênio, do potássio e da relação N:K no crescimento vegetativo e reprodutivo do cafeeiro. Para isto, plantas de café receberam solução nutritiva, contendo K nas concentrações de 1,08; 2,15; 3,23 e 5,38 mmol L -1 , combinadas com a dose de 6 mmol L -1 de N, o… Show more

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Cited by 29 publications
(21 citation statements)
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“…The yield reduction at the highest K rate (Table 1) indicates a possible nutritional imbalance as a result of cationic competition among K, Ca, and Mg and anionic competition among Cl, S, and P (Jakobsen, 1993;Clemente et al, 2013). According to Alvarez V. et al (1999), the probability of coffee response to K fertilization is high, if soil K concentration ranges from 1.0 to 1.75 mmol c dm -3 .…”
Section: Resultsmentioning
confidence: 98%
“…The yield reduction at the highest K rate (Table 1) indicates a possible nutritional imbalance as a result of cationic competition among K, Ca, and Mg and anionic competition among Cl, S, and P (Jakobsen, 1993;Clemente et al, 2013). According to Alvarez V. et al (1999), the probability of coffee response to K fertilization is high, if soil K concentration ranges from 1.0 to 1.75 mmol c dm -3 .…”
Section: Resultsmentioning
confidence: 98%
“…Pasokan N yang cukup akan meningkatkan jumlah cabang plagiotrop (cabang produksi), luas daun, dan produksi pati, serta karbohidrat lainnya yang berperan dalam pembentukan dan pertumbuhan biji kopi (Guimarães & Mendes, 1997 cited in Clemente et al, 2013). Selain itu, unsur hara N berpengaruh terhadap pertumbuhan tanaman dan kandungan kafein dalam jaringan tanaman kopi.…”
Section: Korelasi Ketinggian Tempat Dengan Sifat Kimia Tanahunclassified
“…Selain itu, unsur K juga berperan dalam reproduksi tanaman kopi, terutama pada hasil dan ukuran biji (Clemente et al, 2013), menentukan kualitas citarasa dengan mengaktifkan enzim polifenol oksidase serta menentukan kandungan kafein dan fenol dalam biji kopi (Gonthier, Witter, Spongberg, & Philpott, 2011;Clemente et al, 2013;Mancuso, Soratto, Crusciol, & Castro, 2014;Clemente, Martinez, Alves, Finger, & Cecon, 2015).…”
Section: Korelasi Ketinggian Tempat Dengan Sifat Kimia Tanahunclassified
“…A melhor qualidade sensorial foi obtida com doses de K que permitiram obter 98,70% da produção máxima de café cereja (Clemente, 2010). O N influenciou principalmente as características de crescimento vegetativo, enquanto o K influenciou principalmente as características de crescimento reprodutivo, como número de frutos do ramo índice, produção e tamanho de grãos (Clemente et al, 2013).…”
Section: Nitrogênio E Potássiounclassified