TY  - JOUR 
T1  - Tillage systems and nutrient sources affecting soil cover, temperature and moisture in a clayey oxisol under corn
JO  - Revista Brasileira de Ciência do Solo
A1  - Veiga, Milton da
A1  - Reinert, Dalvan José
A1  - Reichert, José Miguel
SN  - 0100-0683
UL  - 10.1590/S0100-06832010000600025
VL  - 34 
Y1  - 2010
PB  - Brasil 
ER  -