Influence of the N/K ratio on the production and quality of cucumber in hydroponic system
The objective of this work was to evaluate the quality of fruits and the nutritional status of cucumber CV. Aodai cultivated in nutrient solutions with different N:K ratios. The hydroponic cultivation was initially performed, during the vegetative growth, in nutrient solution with 1:2.0 mmol L-1 N:K, and, later, during fruit setting, in four different nutrient solutions with N:K (w/w) at the ratios 1:1.4, 1:1.7, 1:2.0 and 1:2.5. An additional treatment with a nutrient solution containing the ratio 1:2.2 (w/w) N:K during the vegetative growth and N:K 1:1.4 (w/w) during fruit setting, both with 10% ammonium (NH4+) was included. The treatments were arranged in a randomized design with six replicates. Irrigation was carried out with deionized water until seed germination, and then with nutrient solution until 30 days after germination, when plants were transplanted. Plants in the hydroponic growing beds were irrigated with the solutions for vegetative growth, and, after 21 days, the solutions were replaced by solutions for fruit setting. At 45 and 60 days after transplanting, the fresh weight, length, diameter, volume and firmness of the fruit were evaluated, and, at 45 days after transplanting, the macronutrient concentrations in the leaves were determined. The use of different N:K ratios during fruit setting influenced the cucumber production. The ratio of 1.0:1.7 N: K (w/w), with 10% of N in the form of ammonia, is recommended for the whole cycle.
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Universidade Federal de Viçosa
2011
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oai:scielo:S0034-737X20110005000122011-11-22Influence of the N/K ratio on the production and quality of cucumber in hydroponic systemPedrosa,Adriene WoodsMartinez,Herminia Emilia PrietoMatiello,Edson MarcioFontes,Paulo Cezar RezendePereira,Paulo Roberto Gomes Cucumis sativus L nutrient solution ammonium biometric evaluation of fruits The objective of this work was to evaluate the quality of fruits and the nutritional status of cucumber CV. Aodai cultivated in nutrient solutions with different N:K ratios. The hydroponic cultivation was initially performed, during the vegetative growth, in nutrient solution with 1:2.0 mmol L-1 N:K, and, later, during fruit setting, in four different nutrient solutions with N:K (w/w) at the ratios 1:1.4, 1:1.7, 1:2.0 and 1:2.5. An additional treatment with a nutrient solution containing the ratio 1:2.2 (w/w) N:K during the vegetative growth and N:K 1:1.4 (w/w) during fruit setting, both with 10% ammonium (NH4+) was included. The treatments were arranged in a randomized design with six replicates. Irrigation was carried out with deionized water until seed germination, and then with nutrient solution until 30 days after germination, when plants were transplanted. Plants in the hydroponic growing beds were irrigated with the solutions for vegetative growth, and, after 21 days, the solutions were replaced by solutions for fruit setting. At 45 and 60 days after transplanting, the fresh weight, length, diameter, volume and firmness of the fruit were evaluated, and, at 45 days after transplanting, the macronutrient concentrations in the leaves were determined. The use of different N:K ratios during fruit setting influenced the cucumber production. The ratio of 1.0:1.7 N: K (w/w), with 10% of N in the form of ammonia, is recommended for the whole cycle.info:eu-repo/semantics/openAccessUniversidade Federal de ViçosaRevista Ceres v.58 n.5 20112011-10-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2011000500012en10.1590/S0034-737X2011000500012 |
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Pedrosa,Adriene Woods Martinez,Herminia Emilia Prieto Matiello,Edson Marcio Fontes,Paulo Cezar Rezende Pereira,Paulo Roberto Gomes |
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Pedrosa,Adriene Woods Martinez,Herminia Emilia Prieto Matiello,Edson Marcio Fontes,Paulo Cezar Rezende Pereira,Paulo Roberto Gomes Influence of the N/K ratio on the production and quality of cucumber in hydroponic system |
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Pedrosa,Adriene Woods Martinez,Herminia Emilia Prieto Matiello,Edson Marcio Fontes,Paulo Cezar Rezende Pereira,Paulo Roberto Gomes |
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Pedrosa,Adriene Woods |
title |
Influence of the N/K ratio on the production and quality of cucumber in hydroponic system |
title_short |
Influence of the N/K ratio on the production and quality of cucumber in hydroponic system |
title_full |
Influence of the N/K ratio on the production and quality of cucumber in hydroponic system |
title_fullStr |
Influence of the N/K ratio on the production and quality of cucumber in hydroponic system |
title_full_unstemmed |
Influence of the N/K ratio on the production and quality of cucumber in hydroponic system |
title_sort |
influence of the n/k ratio on the production and quality of cucumber in hydroponic system |
description |
The objective of this work was to evaluate the quality of fruits and the nutritional status of cucumber CV. Aodai cultivated in nutrient solutions with different N:K ratios. The hydroponic cultivation was initially performed, during the vegetative growth, in nutrient solution with 1:2.0 mmol L-1 N:K, and, later, during fruit setting, in four different nutrient solutions with N:K (w/w) at the ratios 1:1.4, 1:1.7, 1:2.0 and 1:2.5. An additional treatment with a nutrient solution containing the ratio 1:2.2 (w/w) N:K during the vegetative growth and N:K 1:1.4 (w/w) during fruit setting, both with 10% ammonium (NH4+) was included. The treatments were arranged in a randomized design with six replicates. Irrigation was carried out with deionized water until seed germination, and then with nutrient solution until 30 days after germination, when plants were transplanted. Plants in the hydroponic growing beds were irrigated with the solutions for vegetative growth, and, after 21 days, the solutions were replaced by solutions for fruit setting. At 45 and 60 days after transplanting, the fresh weight, length, diameter, volume and firmness of the fruit were evaluated, and, at 45 days after transplanting, the macronutrient concentrations in the leaves were determined. The use of different N:K ratios during fruit setting influenced the cucumber production. The ratio of 1.0:1.7 N: K (w/w), with 10% of N in the form of ammonia, is recommended for the whole cycle. |
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Universidade Federal de Viçosa |
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2011 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2011000500012 |
work_keys_str_mv |
AT pedrosaadrienewoods influenceofthenkratioontheproductionandqualityofcucumberinhydroponicsystem AT martinezherminiaemiliaprieto influenceofthenkratioontheproductionandqualityofcucumberinhydroponicsystem AT matielloedsonmarcio influenceofthenkratioontheproductionandqualityofcucumberinhydroponicsystem AT fontespaulocezarrezende influenceofthenkratioontheproductionandqualityofcucumberinhydroponicsystem AT pereirapaulorobertogomes influenceofthenkratioontheproductionandqualityofcucumberinhydroponicsystem |
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