Data/hora: 10/06/2024 03:41:16

Provedor de dados: | Engenharia Agrícola
País: | Brazil
Título: | STRUCTURAL PROPERTIES OF SOIL IN MAIZE AND FORAGE GRASS INTERCROPPING UNDER NO-TILLAGE IN THE BRAZILIAN CERRADO
Autores: | Cagna,Camila P.; Calábria,Zieglenristen K. P.; Guedes Filho,Osvaldo; Pacheco,Leandro P.; Silva,Tonny J. A. da.
Data: | 2019-08-01
Ano: | 2019
Palavras-chave: | Aggregate stability index; Tensile strength; Soil physical quality.
Resumo: | ABSTRACT Integration of forage grasses with grain crops, such as maize, allows maintaining soil cover. The objective of this study was to evaluate the tensile strength, friability, and stability of soil aggregates in the maize and forage grass intercropping under no-tillage system. The study used a completely randomized block design with seven treatments and three replications. Undisturbed soil samples were collected in two seasons (2015 and 2016) at 0–0.10 m and 0.10–0.20 m soil depth. The following properties of soil aggregates were measured: tensile strength (TS), friability (F), gravimetric moisture (GM), weighted mean diameter (WMD), geometric mean diameter (GMD), and aggregate stability index (ASI). The intercropping of maize with Urochloa ruziziensis presented higher WMD and GMD at 0.10–0.20 m soil depth. Moreover, TS at 0.10–0.20 m soil depth was lower in maize without intercropping. The effects of the intercropping system on soil aggregates were better detected by aggregate stability than by TS or F. The intercropping of maize and U. ruziziensis improved soil aggregation to a higher extent than those systems with other forage grasses.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000400512
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/1809-4430-eng.agric.v39n4p512-517/2019
Formato: | text/html
Fonte: | Engenharia Agrícola  v.39 n.4 2019
Fonte: | info:eu-repo/semantics/openAccess