Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability

The effects of foliar and soil applied phosphite on grain yield in common bean (Phaseolus vulgaris L.) grown in a weathered soil under low and adequate phosphate availability were evaluated. In the first experiment, treatments were composed of a 2 x 7 + 2 factorial scheme, with 2 soil P levels supplied as phosphate (40 e 200 mg P dm-3 soil), 7 soil P levels supplied as phosphite (0-100 mg P dm-3 soil), and 2 additional treatments (without P supply in soil, and all P supplied as phosphite). In the second experiment, treatments were composed of a 2 x 3 x 2 factorial scheme, with 2 soil phosphate levels (40 e 200 mg P dm-3 soil), combined with 3 nutrient sources applied via foliar sprays (potassium phosphite, potassium phosphate, and potassium chloride as a control), and 2 foliar application numbers (single and two application). Additional treatments showed that phosphite is not P source for common bean nutrition. Phosphite supply in soil increased the P content in shoot (at full physiological maturity stage) and grains, but at the same time considerably decreased grain yield, regardless of the soil phosphate availability. Foliar sprays of phosphite decreased grain yield in plants grown under low soil phosphate availability, but no effect was observed in plants grown under adequate soil phosphate availability. In general, foliar sprays of phosphate did not satisfactorily improve grain yield of the common bean plants grown under low soil phosphate availability.

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Main Authors: Ávila,Fabricio William, Faquin,Valdemar, Silva,Douglas Ramos Guelfi, Bastos,Carla Elisa Alves, Oliveira,Nilma Portela, Soares,Danilo Araújo
Format: Digital revista
Language:English
Published: Editora da UFLA 2012
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600006
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spelling oai:scielo:S1413-705420120006000062012-12-17Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availabilityÁvila,Fabricio WilliamFaquin,ValdemarSilva,Douglas Ramos GuelfiBastos,Carla Elisa AlvesOliveira,Nilma PortelaSoares,Danilo Araújo Phaseolus vulgaris tropical soil foliar fertilizer plant nutrition The effects of foliar and soil applied phosphite on grain yield in common bean (Phaseolus vulgaris L.) grown in a weathered soil under low and adequate phosphate availability were evaluated. In the first experiment, treatments were composed of a 2 x 7 + 2 factorial scheme, with 2 soil P levels supplied as phosphate (40 e 200 mg P dm-3 soil), 7 soil P levels supplied as phosphite (0-100 mg P dm-3 soil), and 2 additional treatments (without P supply in soil, and all P supplied as phosphite). In the second experiment, treatments were composed of a 2 x 3 x 2 factorial scheme, with 2 soil phosphate levels (40 e 200 mg P dm-3 soil), combined with 3 nutrient sources applied via foliar sprays (potassium phosphite, potassium phosphate, and potassium chloride as a control), and 2 foliar application numbers (single and two application). Additional treatments showed that phosphite is not P source for common bean nutrition. Phosphite supply in soil increased the P content in shoot (at full physiological maturity stage) and grains, but at the same time considerably decreased grain yield, regardless of the soil phosphate availability. Foliar sprays of phosphite decreased grain yield in plants grown under low soil phosphate availability, but no effect was observed in plants grown under adequate soil phosphate availability. In general, foliar sprays of phosphate did not satisfactorily improve grain yield of the common bean plants grown under low soil phosphate availability.info:eu-repo/semantics/openAccessEditora da UFLACiência e Agrotecnologia v.36 n.6 20122012-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600006en10.1590/S1413-70542012000600006
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Ávila,Fabricio William
Faquin,Valdemar
Silva,Douglas Ramos Guelfi
Bastos,Carla Elisa Alves
Oliveira,Nilma Portela
Soares,Danilo Araújo
spellingShingle Ávila,Fabricio William
Faquin,Valdemar
Silva,Douglas Ramos Guelfi
Bastos,Carla Elisa Alves
Oliveira,Nilma Portela
Soares,Danilo Araújo
Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability
author_facet Ávila,Fabricio William
Faquin,Valdemar
Silva,Douglas Ramos Guelfi
Bastos,Carla Elisa Alves
Oliveira,Nilma Portela
Soares,Danilo Araújo
author_sort Ávila,Fabricio William
title Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability
title_short Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability
title_full Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability
title_fullStr Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability
title_full_unstemmed Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability
title_sort phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability
description The effects of foliar and soil applied phosphite on grain yield in common bean (Phaseolus vulgaris L.) grown in a weathered soil under low and adequate phosphate availability were evaluated. In the first experiment, treatments were composed of a 2 x 7 + 2 factorial scheme, with 2 soil P levels supplied as phosphate (40 e 200 mg P dm-3 soil), 7 soil P levels supplied as phosphite (0-100 mg P dm-3 soil), and 2 additional treatments (without P supply in soil, and all P supplied as phosphite). In the second experiment, treatments were composed of a 2 x 3 x 2 factorial scheme, with 2 soil phosphate levels (40 e 200 mg P dm-3 soil), combined with 3 nutrient sources applied via foliar sprays (potassium phosphite, potassium phosphate, and potassium chloride as a control), and 2 foliar application numbers (single and two application). Additional treatments showed that phosphite is not P source for common bean nutrition. Phosphite supply in soil increased the P content in shoot (at full physiological maturity stage) and grains, but at the same time considerably decreased grain yield, regardless of the soil phosphate availability. Foliar sprays of phosphite decreased grain yield in plants grown under low soil phosphate availability, but no effect was observed in plants grown under adequate soil phosphate availability. In general, foliar sprays of phosphate did not satisfactorily improve grain yield of the common bean plants grown under low soil phosphate availability.
publisher Editora da UFLA
publishDate 2012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600006
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