Canopy cover, biomass production and nutrient accumulation by coper crops

Authors

  • Neuro Hilton Wolschick Universidade do Estado de Santa Catarina - UDESC
  • Fabrício Tondello Barbosa Universidade do Estado de Santa Catarina - UDESC
  • Ildegardis Bertol Universidade do Estado de Santa Catarina - UDESC
  • Kristiana Fiorentin dos Santos Universidade Federal de Santa Maria - UFSM
  • Romeu de Souza Werner Universidade do Estado de Santa Catarina - UDESC
  • Bárbara Bagio Universidade do Estado de Santa Catarina - UDESC

DOI:

https://doi.org/10.5965/223811711522016134

Keywords:

Soil conservation, intercropping cover crops, green manure, nutrient cycling.

Abstract

The use of cover crops is an important strategy for maintaining the productive capacity of agricultural land. This research aimed to determine the soil coverage, biomass production and accumulation of N, P, K, Ca and Mg in plant tissue of different species of cover crops on the southern plateau of Santa Catarina, Brazil. The experiment was conducted in a Humic Cambisol (Inceptisol) with the following treatments: i) BO - black oat (Avena strigosa); ii) WR - wild radish (Raphanus sativus L.); iii) CV - common vetch (Vicia sativa); iv) IS - intercropping of the three species; and v) WF - winter fallow with spontaneous vegetation. The use of cover crops has potential for high biomass production, canopy cover and nutrient accumulation by plant tissue, higher than winter fallow. In the early stage of plant development the highest growth rates and soil coverage occur in WR and IS, while at the end are higher in CV and IS. The crops of BO, CV and IS produce large amounts of dry shoot mass and BO produces greater dry root mass. In general, the CV and IS treatments and the shoot accumulate greater amounts of nutrients in plant tissue as compared to other treatments and the roots, respectively.

Author Biographies

Neuro Hilton Wolschick, Universidade do Estado de Santa Catarina - UDESC

Doutorando em Ciência do Solo, Departamento de Solos e Recursos Naturais. Área de Manejo e Conservação do Solo.

Fabrício Tondello Barbosa, Universidade do Estado de Santa Catarina - UDESC

Professor do Departamento de Solos e Recursos Naturais. Área de Manejo e Conservação do Solo.

Ildegardis Bertol, Universidade do Estado de Santa Catarina - UDESC

Professor do Departamento de Solos e Recursos Naturais. Área de Uso e Conservação do Solo.

Kristiana Fiorentin dos Santos, Universidade Federal de Santa Maria - UFSM

Doutorando em Engenharia Florestal, Departamento de Ciências Florestais. Área de ecologia florestal.

Romeu de Souza Werner, Universidade do Estado de Santa Catarina - UDESC

Doutorando em Ciência do Solo, Departamento de Solos e Recursos Naturais. Área de Uso e Conservação do Solo.

Bárbara Bagio, Universidade do Estado de Santa Catarina - UDESC

Mestranda em Ciência do Solo, Departamento de Solos e Recursos Naturais. Área de Uso e Conservação do Solo.

Published

2016-08-15

Issue

Section

Research Article - Science of Plants and Derived Products