Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.

Root is an important organ which supplies water and nutrients to growing plants. Data related to root growth and nutrient uptake by tropical legume cover crops are limited. The objective of this study was to evaluate root growth of tropical legume cover crops and nitrogen and phosphorus uptake and use efficiency under different phosphorus (P) levels. The P levels used were 0 (low), 100 (medium) and 200 (high) mg kg-1 of soil and 5 cover crops were evaluated. Root dry weight, maximum root length, specific root length were significantly influenced by P and cover crop treatments. Maximum values of these root growth parameters were achieved with the addition of 100 mg P kg-1 soil. The P x cover crops interaction for all the macro and micronutrients, except Mn was significant, indicating variation in uptake pattern of these nutrients by cover crops with the variation in P rates. Cover crops which produced higher root dry weight also accumulated higher amount of N and P compared to cover crops which produced lower root dry weight. Higher uptake of N compared to other nutrients by cover crops indicated that use of cover crops in the cropping systems can reduce loss of NO3- from soil-plant systems.

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Bibliographic Details
Main Authors: FAGERIA, N. K., GHEYI, H. R., CARVALHO, M. C. S., MOREIRA, A.
Other Authors: NAND KUMAR FAGERIA, CNPAF; H. R. GHEYI; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; ADONIS MOREIRA, CNPSO.
Format: Parte de livro biblioteca
Language:English
eng
Published: 2014-05-22
Subjects:Peso seco da raiz, Peso seco do caule, Cumprimento radicular, Relação raiz-parte aérea, Fertilizante fosfatado, Fósforo, Nitrogênio, Raíz,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/986843
http://dx.doi.org/10.12702/ii.inovagri.2014-a606
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spelling dig-alice-doc-9868432017-08-16T00:21:26Z Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization. FAGERIA, N. K. GHEYI, H. R. CARVALHO, M. C. S. MOREIRA, A. NAND KUMAR FAGERIA, CNPAF; H. R. GHEYI; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; ADONIS MOREIRA, CNPSO. Peso seco da raiz Peso seco do caule Cumprimento radicular Relação raiz-parte aérea Fertilizante fosfatado Fósforo Nitrogênio Raíz Root is an important organ which supplies water and nutrients to growing plants. Data related to root growth and nutrient uptake by tropical legume cover crops are limited. The objective of this study was to evaluate root growth of tropical legume cover crops and nitrogen and phosphorus uptake and use efficiency under different phosphorus (P) levels. The P levels used were 0 (low), 100 (medium) and 200 (high) mg kg-1 of soil and 5 cover crops were evaluated. Root dry weight, maximum root length, specific root length were significantly influenced by P and cover crop treatments. Maximum values of these root growth parameters were achieved with the addition of 100 mg P kg-1 soil. The P x cover crops interaction for all the macro and micronutrients, except Mn was significant, indicating variation in uptake pattern of these nutrients by cover crops with the variation in P rates. Cover crops which produced higher root dry weight also accumulated higher amount of N and P compared to cover crops which produced lower root dry weight. Higher uptake of N compared to other nutrients by cover crops indicated that use of cover crops in the cropping systems can reduce loss of NO3- from soil-plant systems. 2014-05-22T22:28:32Z 2014-05-22T22:28:32Z 2014-05-22 2014 2014-05-22T22:28:32Z Parte de livro In: INOVAGRI INTERNATIONAL MEETING, 2., 2014, Fortaleza. Anais... Fortaleza: Instituto de Pesquisa e Inovação na Agricultura Irrigada, 2014. http://www.alice.cnptia.embrapa.br/alice/handle/doc/986843 http://dx.doi.org/10.12702/ii.inovagri.2014-a606 en eng openAccess 1 CD-ROM.
institution EMBRAPA
collection DSpace
country Brasil
countrycode BR
component Bibliográfico
access En linea
databasecode dig-alice
tag biblioteca
region America del Sur
libraryname Sistema de bibliotecas de EMBRAPA
language English
eng
topic Peso seco da raiz
Peso seco do caule
Cumprimento radicular
Relação raiz-parte aérea
Fertilizante fosfatado
Fósforo
Nitrogênio
Raíz
Peso seco da raiz
Peso seco do caule
Cumprimento radicular
Relação raiz-parte aérea
Fertilizante fosfatado
Fósforo
Nitrogênio
Raíz
spellingShingle Peso seco da raiz
Peso seco do caule
Cumprimento radicular
Relação raiz-parte aérea
Fertilizante fosfatado
Fósforo
Nitrogênio
Raíz
Peso seco da raiz
Peso seco do caule
Cumprimento radicular
Relação raiz-parte aérea
Fertilizante fosfatado
Fósforo
Nitrogênio
Raíz
FAGERIA, N. K.
GHEYI, H. R.
CARVALHO, M. C. S.
MOREIRA, A.
Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
description Root is an important organ which supplies water and nutrients to growing plants. Data related to root growth and nutrient uptake by tropical legume cover crops are limited. The objective of this study was to evaluate root growth of tropical legume cover crops and nitrogen and phosphorus uptake and use efficiency under different phosphorus (P) levels. The P levels used were 0 (low), 100 (medium) and 200 (high) mg kg-1 of soil and 5 cover crops were evaluated. Root dry weight, maximum root length, specific root length were significantly influenced by P and cover crop treatments. Maximum values of these root growth parameters were achieved with the addition of 100 mg P kg-1 soil. The P x cover crops interaction for all the macro and micronutrients, except Mn was significant, indicating variation in uptake pattern of these nutrients by cover crops with the variation in P rates. Cover crops which produced higher root dry weight also accumulated higher amount of N and P compared to cover crops which produced lower root dry weight. Higher uptake of N compared to other nutrients by cover crops indicated that use of cover crops in the cropping systems can reduce loss of NO3- from soil-plant systems.
author2 NAND KUMAR FAGERIA, CNPAF; H. R. GHEYI; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; ADONIS MOREIRA, CNPSO.
author_facet NAND KUMAR FAGERIA, CNPAF; H. R. GHEYI; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; ADONIS MOREIRA, CNPSO.
FAGERIA, N. K.
GHEYI, H. R.
CARVALHO, M. C. S.
MOREIRA, A.
format Parte de livro
topic_facet Peso seco da raiz
Peso seco do caule
Cumprimento radicular
Relação raiz-parte aérea
Fertilizante fosfatado
Fósforo
Nitrogênio
Raíz
author FAGERIA, N. K.
GHEYI, H. R.
CARVALHO, M. C. S.
MOREIRA, A.
author_sort FAGERIA, N. K.
title Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
title_short Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
title_full Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
title_fullStr Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
title_full_unstemmed Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
title_sort root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization.
publishDate 2014-05-22
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/986843
http://dx.doi.org/10.12702/ii.inovagri.2014-a606
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