Kesan Paras N dan K dalam Larutan Nutrien terhadap Keupayaan Pertukaran Kation Akar Tanaman Selada (Lactuca sativa)

A. Kazar, Mazuki and Hussin, Aminuddin and Abdul Raffar, Khalip (1994) Kesan Paras N dan K dalam Larutan Nutrien terhadap Keupayaan Pertukaran Kation Akar Tanaman Selada (Lactuca sativa). Pertanika Journal of Tropical Agricultural Science, 17 (2). pp. 133-137. ISSN 0126-6128

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Abstract

A study on the influence of nitrogen (N) (100, 200, 300 and 400 mgNL-l ) and potassium (K) (100, 200 and 400 mgKL-l) combinations in solution using the nutrient film technique, hydroponic system on the root cation exchange capacity (GE.G) of lettuce plant (Lactuca sativa var crispa cv. Poly) was undertaken. Roots were sampled on the 20th, 30th and 40th day after germination. Significant increase in roots GE. Cfrom 39.4 7 to 51.11 cmol(+)kgl due to the N level was only detected on the 40th day of sampling. However, increasing the k concentration in nutrient solution at the three sampling times significantly decreased the root GE.C values from 29.48-57.00 to 23.25-35.92 cmol(+)kgl . Root GE.C increased from 27.1 7 to 46.23 cmol(+)kg1 with plant growth stage.

Item Type:Article
Keyword:KPK-akar, N, K, umur tanaman, larutan nutrien, teknik nutrien cetek (TNC), selada
Publisher:Universiti Putra Malaysia Press
ID Code:3262
Deposited By: Nasirah Abu Samah
Deposited On:25 Nov 2009 01:32
Last Modified:27 May 2013 07:06

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