Site

Crop

Soil Texture

Period

Barbalha-CE

Cotton (Gossipium hirsuum L. cv. BRS-200 Marrom)

Clay

Sep-Dec, 2005

Barbalha-CE

Castor bean (Ricinus communis L. cv. BRS-Energia)

Clay

Sep-Dec, 2005

Apodi-RN

Cotton(Gossipium hirsuum L. cv. BRS-187-8H)

Sandy-clay-loam

Sep-Dec, 2008