2009
DOI: 10.1590/s0100-06832009000200005
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Intervalo hídrico ótimo num nitossolo vermelho distroférrico irrigado

Abstract: RESUMOO manejo da irrigação tem-se baseado no controle do potencial da água no solo (Ψ Ψ Ψ Ψ Ψ) como fator limitante do crescimento das plantas. Entretanto, outras variáveis podem influenciar a cultura mesmo que o Ψ Ψ Ψ Ψ Ψ não seja limitante. O Intervalo Hídrico Ótimo (IHO) é um conceito de disponibilidade de água no solo que leva em consideração a porosidade de aeração e a resistência do solo à penetração em adição ao Ψ Ψ Ψ Ψ Ψ. O objetivo deste estudo foi quantificar o IHO num Nitossolo Vermelho distroférri… Show more

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Cited by 32 publications
(40 citation statements)
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References 32 publications
(55 reference statements)
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“…Anoxia problems were sporadic, happening after high rainfall, so, in general, water content is lower than the UL over the following evaluations. These results confirm the small limitation of oxygen diffusion in soil and root respiration (Blainski et al, 2009) (Figure 4). …”
Section: Monitoring Of the Soil Water Content According To The Llwr Csupporting
confidence: 86%
“…Anoxia problems were sporadic, happening after high rainfall, so, in general, water content is lower than the UL over the following evaluations. These results confirm the small limitation of oxygen diffusion in soil and root respiration (Blainski et al, 2009) (Figure 4). …”
Section: Monitoring Of the Soil Water Content According To The Llwr Csupporting
confidence: 86%
“…These measurements continued until the harvest of each cultivar according to an adaptation of the method proposed by Blainski et al (2009).…”
Section: Thementioning
confidence: 99%
“…Therefore, monitoring temporal variation of soil water content during crop cycles through quantification of the critical limits of the LLWR is a useful tool for making inferences regarding the optimal number of crop cycles and the periods of phenological development during which plants are more or less subject to stress in terms of water availability, aeration and resistance to root penetration (Blainski et al, 2009;2012).…”
Section: Introductionmentioning
confidence: 99%
“…A RP foi correlacionada positivamente com a Ds e negativamente com , fato já amplamente reportado na literatura (Tormena et al, 2007;Blainski et al, 2009;Petean et al, 2010;Moreira et al, 2014).…”
Section: Resultsunclassified
“…Diferentes valores críticos de RP para o crescimento de plantas têm sido reportados na literatura, mas o valor de 2 MPa é o mais frequentemente utilizado (Silva et al, 1994;Tormena et al, 1998;Betz et al, 1998;Blainski et al, 2009). Visto que o objetivo deste estudo foi avaliar duas estratégias metodológicas para obter as CRA e CRS, a fim de quantificar o IHO (Figura 4), adotou-se o limite crítico de RP de 2 MPa.…”
Section: Resultsunclassified