4 public-domain matches

Agronomy And Crop Production

Cover of Umbu-cajazeira

Umbu-cajazeira

Francisco Xavier de Souza, Francisco de Queiroz Porto Filho, Nouglas Veloso Barbosa Mendes

Cover of The principles of agronomy

The principles of agronomy

Franklin Stewart Harris

Cover of Emergency crops for overflowed lands in the Mississippi Valley

Emergency crops for overflowed lands in the Mississippi Valley

Bradford Knapp

Cover of Burt oats

Burt oats

United States. Bureau of Plant Industry. Seed and Plant Introduction and Distribution