LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONS

This study was conducted in a agrossilvicultural system with two years of deployment, located in Goiânia, Goiás, using tree component as the species Tectona grandis L. f. This objective was evaluate the radiation incidence in the seasons dry and rainy under different fertilization. The design was a...

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Main Authors: S. A. H Abreu, M. P. Santos, F. N. Calil, N. P. R. Reges, R. B. Costa, P. A. Ximenes, P. P. Cunha
Format: Article
Language:English
Published: Universidade Federal de Rondonópolis 2017-02-01
Series:Scientific Electronic Archives
Subjects:
Online Access:http://www.seasinop.com.br/revista/index.php?journal=SEA&page=article&op=view&path%5B%5D=313&path%5B%5D=pdf
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author S. A. H Abreu
M. P. Santos
F. N. Calil
N. P. R. Reges
R. B. Costa
P. A. Ximenes
P. P. Cunha
author_facet S. A. H Abreu
M. P. Santos
F. N. Calil
N. P. R. Reges
R. B. Costa
P. A. Ximenes
P. P. Cunha
author_sort S. A. H Abreu
collection DOAJ
description This study was conducted in a agrossilvicultural system with two years of deployment, located in Goiânia, Goiás, using tree component as the species Tectona grandis L. f. This objective was evaluate the radiation incidence in the seasons dry and rainy under different fertilization. The design was a randomized block, in split plot, factorial arrangement 4 x 2 x 2. The plots received the factors fertilization and measurement of height, being four types of fertilization (control, NPK, sewage sludge and cattle manure) and two heights measure (soil level and 1.3 m above the soil). The subplots were allocated two seasons (dry and rainy), with four repetitions (blocks). They evaluated the photon flux density (PFD) in μmol.m-2.s-1 and the percentage of shading in the understory. The types of fertilizer did not influence the soil fertility and the light avaliability in any of the seasons and heights of measurement. The percentage (%) shading differed only at soil level, being higher in the rainy season compared to season dry (37.18 vs. 19.80%). In the dry season is reduced (%) shading and the consequent increase in photon reflectance rate at soil level in the agrossilvicultural system in initial stage.
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spelling doaj.art-ab26903f49d64bf09ee43d0066cfde4b2022-12-21T19:17:14ZengUniversidade Federal de RondonópolisScientific Electronic Archives2316-92812316-92812017-02-011011313LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONSS. A. H AbreuM. P. SantosF. N. CalilN. P. R. RegesR. B. CostaP. A. XimenesP. P. CunhaThis study was conducted in a agrossilvicultural system with two years of deployment, located in Goiânia, Goiás, using tree component as the species Tectona grandis L. f. This objective was evaluate the radiation incidence in the seasons dry and rainy under different fertilization. The design was a randomized block, in split plot, factorial arrangement 4 x 2 x 2. The plots received the factors fertilization and measurement of height, being four types of fertilization (control, NPK, sewage sludge and cattle manure) and two heights measure (soil level and 1.3 m above the soil). The subplots were allocated two seasons (dry and rainy), with four repetitions (blocks). They evaluated the photon flux density (PFD) in μmol.m-2.s-1 and the percentage of shading in the understory. The types of fertilizer did not influence the soil fertility and the light avaliability in any of the seasons and heights of measurement. The percentage (%) shading differed only at soil level, being higher in the rainy season compared to season dry (37.18 vs. 19.80%). In the dry season is reduced (%) shading and the consequent increase in photon reflectance rate at soil level in the agrossilvicultural system in initial stage.http://www.seasinop.com.br/revista/index.php?journal=SEA&page=article&op=view&path%5B%5D=313&path%5B%5D=pdfCanopy gapsorganic wastesolar radiation
spellingShingle S. A. H Abreu
M. P. Santos
F. N. Calil
N. P. R. Reges
R. B. Costa
P. A. Ximenes
P. P. Cunha
LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONS
Scientific Electronic Archives
Canopy gaps
organic waste
solar radiation
title LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONS
title_full LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONS
title_fullStr LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONS
title_full_unstemmed LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONS
title_short LIGHT AVALIABILITY AT THE DRY AND RAINY SEASONS IN AGROSSIVICULTURAL SYSTEM UNDER DIFFERENT FERTILIZATIONS
title_sort light avaliability at the dry and rainy seasons in agrossivicultural system under different fertilizations
topic Canopy gaps
organic waste
solar radiation
url http://www.seasinop.com.br/revista/index.php?journal=SEA&page=article&op=view&path%5B%5D=313&path%5B%5D=pdf
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