Soil spatial variability and the estimation of the irrigation water depth.

Vista sencilla de ítem
dc.contributorKLAUS HEICHARDT, UNIVERSIDADE DE SÃO PAULO
dc.contributorJOSÉ CARLOS DE ARAÚJO SILVA, EMPRESA MARANHENSE DE PESQUISA AGROPECUÁRIA
dc.contributorLUIS HENRIQUE BASSOI, CPATSA
dc.contributorLUÍS CARLOS TIMM, UNIVERSIDADE DE SÃO PAULO
dc.contributorJULIO CESAR MARTINS DE OLIVEIRA, ESCOLA DE ENGENHARIA DE PIRACICABA
dc.contributorOSNY OLIVEIRA SANTOS BACCHI, UNIVERSIDADE DE SÃO PAULO
dc.contributorJOÃO EDUARDO PILOTTO, UNIVERSIDADE DE SÃO PAULO.
dc.creatorREICHARDT, K.
dc.creatorSILVA, J. C. de A.
dc.creatorBASSOI, L. H.
dc.creatorTIMM, L. C.
dc.creatorOLIVEIRA, J. C. M. de
dc.creatorBACCHI, O. O. S.
dc.creatorPILLOTTO, J. E.
dc.date2018-09-18T00:32:35Z
dc.date2018-09-18T00:32:35Z
dc.date2001-12-19
dc.date2001
dc.date2018-09-18T00:32:35Z
dc.date.accessioned2026-07-07T05:51:29Z
dc.descriptionThe effects of soil water spatial variability previous to irrigation and of the field capacity on the estimation of irrigation water depth are evaluated. The experiment consisted of a common bean (Phaseolus vulgaris L.) crop established on a Kandiudalfic Eutrudox of Piracicaba, SP, Brazil, irrigated by central pivot, in which soil water contents were evaluated with a depth neutron gauge, in a grid of 20x4 points with lag of 0.5 m. In a given situation, the 80 calculated irrigation water depths presented a coefficient of variation of 29.3%, with an average water value of 18 mm, maximum of 41 mm and minimum of 9 mm. It is concluded that the only practical way of irrigation is the use of an average water depth, due to the inherent variability of the soil, and that the search for better field capacity values does not imply in better water depth estimates.
dc.identifierScientia Agricola, v. 58, n. 3, p. 549-553, jul./set. 2001.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/134466
dc.identifier.urihttp://hdl.handle.net/123456789/501341
dc.languageeng
dc.rightsopenAccess
dc.subjectCapacidade de campo
dc.subjectEspaco
dc.subjectVariabilidade
dc.subjectIrrigation water depth
dc.subjectSoil moisture
dc.subjectSpatial variability
dc.subjectÁgua
dc.subjectIrrigação
dc.subjectProfundidade
dc.subjectUmidade do Solo
dc.subjectfield capacity
dc.titleSoil spatial variability and the estimation of the irrigation water depth.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Semi-Árido (CPATSA)