Mineral nutrition of Arachis pintoi. [Portuguese
The nutritional aspects of Arachis pintoi was studied in hydroponic culture in the greenhouse. Data on growth were collected through systematic sampling up to 74 days. The adjusted growth curves, as an exponential and linear model, showed that total leaf P, K, Ca and Mg followed the ratio of 1:14:8:...
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Published in | Pasturas Tropicales Vol. 18 |
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Main Authors | , , , |
Format | Journal Article |
Language | Portuguese |
Published |
1996
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Abstract | The nutritional aspects of Arachis pintoi was studied in hydroponic culture in the greenhouse. Data on growth were collected through systematic sampling up to 74 days. The adjusted growth curves, as an exponential and linear model, showed that total leaf P, K, Ca and Mg followed the ratio of 1:14:8:2. The Ca:Mg ratio was 4:1. The maximum absorption (mg/pot) for Zn (2.52), Cu (0.38), Fe (5.54), and Mn (0.65) was at 62, 54, 60 and 54 days, respectively. The first approach for plant diagnosis could be K = 2 percent (51 cmolc/kg); P = 0.15 percent (4.8 cmolikg); Mg = 0.29 percent (24 cmolc/kg), and Ca =1 percent (50 cmolc/kg). The Ca + Mg/K ratio was 1.5.
En el invernadero de la estacion experimental de la Empresa de Pesquisa Agropecuaria de Minas Gerais (EPAMIG), Brasil, se evaluo la exigencia nutricional de Arachis pintoi, cultivado en un medio hidroponico y establecido por medio de estolones. A partir de 30 dias y hasta 74 dias despues de la siembra se hicieron ocho cosechas, separando las partes aerea y radical de las plantas. En ellas se determinaron la produccion de MS y la concentraccion de macro y micronutrimentos. El ajuste de modelos exponencial y lineal mostraron que la concentracion total de P, K, Ca y Mg en las hojas presentaron una relacion 1:14:8:2 y la relacion Ca:Mg fue de 4:1. La maxima absorcion (mg/pote) fue Zn (2.52), Cu (0.38), Fe (5.54) y Mn (0.65), a los 62, 54, 60 y 54 dias, respectivamente. Una primera aproximacion para el diagnostico sobre el estado de la nutricion (cmol/kg) en esta planta puede ser: K = 2 por ciento (51 cmolc/kg); P = 0.15 por ciento (4.8 cmolc/kg); Mg = 0.29 por ciento (24 cmolc/kg) y Ca = 1 por ciento (50 cmolc/kg). La relacion Ca + Mg/K fue de 1.5. |
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AbstractList | The nutritional aspects of Arachis pintoi was studied in hydroponic culture in the greenhouse. Data on growth were collected through systematic sampling up to 74 days. The adjusted growth curves, as an exponential and linear model, showed that total leaf P, K, Ca and Mg followed the ratio of 1:14:8:2. The Ca:Mg ratio was 4:1. The maximum absorption (mg/pot) for Zn (2.52), Cu (0.38), Fe (5.54), and Mn (0.65) was at 62, 54, 60 and 54 days, respectively. The first approach for plant diagnosis could be K = 2 percent (51 cmolc/kg); P = 0.15 percent (4.8 cmolikg); Mg = 0.29 percent (24 cmolc/kg), and Ca =1 percent (50 cmolc/kg). The Ca + Mg/K ratio was 1.5.
En el invernadero de la estacion experimental de la Empresa de Pesquisa Agropecuaria de Minas Gerais (EPAMIG), Brasil, se evaluo la exigencia nutricional de Arachis pintoi, cultivado en un medio hidroponico y establecido por medio de estolones. A partir de 30 dias y hasta 74 dias despues de la siembra se hicieron ocho cosechas, separando las partes aerea y radical de las plantas. En ellas se determinaron la produccion de MS y la concentraccion de macro y micronutrimentos. El ajuste de modelos exponencial y lineal mostraron que la concentracion total de P, K, Ca y Mg en las hojas presentaron una relacion 1:14:8:2 y la relacion Ca:Mg fue de 4:1. La maxima absorcion (mg/pote) fue Zn (2.52), Cu (0.38), Fe (5.54) y Mn (0.65), a los 62, 54, 60 y 54 dias, respectivamente. Una primera aproximacion para el diagnostico sobre el estado de la nutricion (cmol/kg) en esta planta puede ser: K = 2 por ciento (51 cmolc/kg); P = 0.15 por ciento (4.8 cmolc/kg); Mg = 0.29 por ciento (24 cmolc/kg) y Ca = 1 por ciento (50 cmolc/kg). La relacion Ca + Mg/K fue de 1.5. |
Author | Vianna M.C. Melo Vasconcellos Carlos Alberto Franca C.C. Moura Purcino Hortencia M.A |
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SubjectTerms | absorcion de sustancias nutritivas absorption de substances nutritives arachis pintoi besoin nutritionnel calcio calcium cinc cobre copper cuivre exigence des plantes fer fosforo hierro iron magnesio magnesium manganese manganeso necesidades de las plantas necesidades de nutrientes nutrient uptake nutritional requirements phosphore phosphorus plant requirements potasio potassium zinc |
Title | Mineral nutrition of Arachis pintoi. [Portuguese |
Volume | 18 |
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