Effects of burning followed by grazing or deferring on residual dry matter, soil temperature and mesofauna of a natural pasture

Ciência Rural

Antoniolli, Zaida Inês¹  Damé, Paulo Rogério Viegas²  Quadros, Fernando Luiz Ferreira de¹  Trindade, José Pedro Pereira²  Kersting, César Eduardo Bicca² 

[1] Universidade Federal de Santa Maria (UFSM);Universidade Federal de Santa Maria (UFSM), Pelotas

关键词: burning;    deferring;    natural pasture;    residue;    soil temperature;    soil mesofauna;   

DOI  :  10.1590/S0103-84781996000300008

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

This study was carried out to evaluate the effects of burning associated with grazing and burning with deferring periods, on residual dry matter, soil temperature and mesofauna composition of a natural pasture. The experiment was conducted at the Animal Science Departament, UFSM, Santa Maria, RS, Brasil. The trial was initiated in the Winter of 1992 and data were collected from May, 1993 to June, 1994. Treatments consisted of: burned in 9/17/92 and grazed: burned in 9/17/92 and deferred, reburned in 9/5/93 and grazed; not burned in 1992 and grazed, burned in 6/22/93 and deferred. Burning reduced dry matter residue and the reduction was more pronounced when burning was followed by grazing. Soil temperature was not affected by burning mainly because its intensity was low. Soil mesofauna was not significantiy affected by the diffèrent treatments tested.

【 授权许可】

CC BY-NC