Sistemas de preparo do solo e culturas de cobertura na produção orgânica de feijão e milho: I - atributos físicos do solo

By E. D. Q. Cunha, L. F. Stone, E. Ferreira, A. Didonet, J. Moreira, W. Leandro. 2011

115 citations recorded by the source corpus.

The influence of cover crops and their management on the maintenance or improvement of soil physical quality in areas under organic production should be investigated. This study aimed to determine the influence of the cover crops sunn hemp (Crotalaria juncea), pigeon pea (Cajanus cajan (L.) Millsp), velvet bean (Mucuna aterrima), sorghum (Sorgum technicum), and fallow on physical properties of soil under organic cultivation of common bean and corn, in no-tillage (NT) and conventional tillage (CT) systems. The study was conducted in Santo Antonio de Goias-GO, on an Oxisol, in a randomized block design, with four replications. In November 2003 four experiments were installed, two of them under NT and the other two in CT. In each management system, one experiment was carried out with common bean and another with corn. Samples were taken from the layers 0.00-0.10 and 0.10-0.20 m in November 2007, from the plots and from a neighboring native forest, to determine soil organic matter (SOM) and physical properties. The use of this soil for agricultural production, regardless of the tillage system, reduced the SOM content and affected the physical properties, increased bulk density (BD) and soil penetration resistance (PR) and decreased macroporosity (Mp), soil porosity (SP), and the weighted mean diameter of aggregates (WMDA). However, BD and Mp did not reach the critical values indicated in the literature as limiting for crop growth. The soil tillage systems diverged in relation to WMDA and PR. The soil physical properties were favorably affected by SOM. The S index was correlated to the soil physical properties and to SOM and seems to be an adequate indicator of soil physical quality.

Subfields: Plant Science, Soil Science

View Paper: https://www.semanticscholar.org/paper/a9346af3c27518fb90408f0fd15a3c76cb17f12d

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Plant Science

1. Wim Cornelis
2. Mansonia Pulido Moncada
3. Donald Gabriëls

In Soil Science

1. Donald Gabriëls
2. Mansonia Pulido Moncada
3. D. Lobo
4. B. Ball
5. Wim Cornelis

Citations in the corpus

• Evaluation of Soil Physical Quality Index S for Some Tropical and Temperate Medium-Textured Soils (2015, methodology): “Using the critical values suggested by Andrade and Stone (2009), Cunha et al. (2011) found that S was well correlated to other soil physical properties and enabled evaluation of the SPQ of tropical soils under different soil tillage systems and cover crops.”