Phosphorus fixation in soils to which varying quantities of vermiculite and kaolinite...

Effect of soil base saturation, Ca:Mg in soil and levels of phosphorus on dry matter...

Efficiency of ion exchange resin and chemical phosphorus extractants evaluated by...

Growth and nutrient concentration in Vigna unguiculata (L.) Walp. "Jaguaribe" in...

Potassium, calcium and sodium levels on yield and mineral composition of tropical...

Relative effect of triple superphosphate and thermphosphate on the yield and nutritive...

Growth of oil palms (Elaeis guineenses Jacq.) nutrient concentration, content and...