Relação entre produtividade e resistência Ã  penetração em área irrigada por pivô central, sob dois sistemas de preparo

Jose de Deus Viana da Mata; Antônio Carlos Andrade Gonçalves; Sidney Rosa Vieira; Marcos Vinicius Folegatti

doi:10.4025/actasciagron.v21i0.4264

Relationship between bean yield and penetrometer soil strength (PSS) in irrigated area under conventional tillage and chiseling

Authors

Jose de Deus Viana da Mata UEM Author
Antônio Carlos Andrade Gonçalves UEM Author
Sidney Rosa Vieira IAC - Campinas Author
Marcos Vinicius Folegatti USP Author

DOI:

https://doi.org/10.4025/actasciagron.v21i0.4264

Keywords:

resistência Ã penetração, produtividade, épocas de amostragens, sistemas de preparo, geoestatística

Abstract

The changes in PSS of the soil submitted to conventional tillage and chisel plow were studied at the Technical Center of Irrigation of Universidade Estadual de Maringá (PR), August through December 1995. The PSS was sampled two times: before chiseling or conventional tillage and after harvesting. The PSS values were correlated with biomass and grain productivity for bean yield. The lack of randomness for biomass and grain productivity, and PSS did not allow application of traditional statistical tests to show the interactions between soil and plant in this field experiment. The spatial analysis showed that soil and plant attributes are space-dependent, within a range of approximately 10 meters. Regression analysis was inappropriate to identify the strong spatial relationship between plant productivity and PSS, but the cross semivariogram showed this relationship.

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Author Biography

Jose de Deus Viana da Mata, UEM

Possui graduação em Engenharia Agronômica pela Universidade Federal do Paraná (1978) , mestrado em Ciências do Solo pela Universidade Federal do Paraná (1988) e doutorado em Agronomia (Solos e Nutrição de Plantas) pela Universidade de São Paulo (1997) . Atualmente é Professor associado da Universidade Estadual de Maringá. Tem experiência na área de Agronomia , com ênfase em Ciência do Solo. Atuando principalmente nos seguintes temas: GEOESTATATISTICA, PREPARO DE SOLO, COMPACTACAO. Currículo Lattes

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Published

2008-07-14

Issue

Vol. 21 (1999)

Section

Agronomy

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How to Cite

Relationship between bean yield and penetrometer soil strength (PSS) in irrigated area under conventional tillage and chiseling. (2008). Acta Scientiarum. Agronomy, 21, 519-525. https://doi.org/10.4025/actasciagron.v21i0.4264