EFFECT OF DIFFERENT TILLAGE SYSTEMS ON OLIGOCHAETA POPULATIONS AND SOIL PHYSICAL CHARACTERISTICS

Ciência Rural

Krabbe, Everton Luiz¹  Antoniolli, Zaida Inês²  Giracca, Ecila Maria Nunes²  Driemeyer, Daniel Júlio¹ 

[1] UFSM, Santa Maria;UFSM

关键词: water stable agregates;    average geometrical diameter;    tiliage systens;    oligochaeta;   

DOI  :  10.1590/S0103-84781994000100010

学科分类：农业科学（综合）

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

【 摘 要 】

Purple Structured (Paleudult) Soil, in autumn, winter and spring seasons, during 1991, in Teutônia-RS, evaluations were done of the effects from different soil tillage systems (no till, conventional and natural forest) on soil physical and biological characteristics. The average geometric diameter of the water stable agregates and the number of oligoquetes for each season. The results from natural forest soil were greater in ali seasons, for average geometric diameter of the water stable agregates as much as for oligoquete population, continued from no till and conventional soil tiliage systems. This indict that the frequent mobilizations and incorporation from the soil mulching, allied with climatic factors, have large participation of soil characteristics.

【 授权许可】

CC BY-NC