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engrais naturels

On the effects of gypsum or plaster of Paris, as a manure

By

Barnyard manure

By Frank Thomas Shutt

Manures and fertilizers

By Frank Thomas Shutt

The manuring of market garden crops

By Frank Thomas Shutt

Fosfornai︠a︡ kislota navoza pri razlichnykh uslovii︠a︡kh ego razlozhenii︠a︡

By Mikhail Andreevich Egorov

Neglected pastures

By John Struthers

On the effects of gypsum, or plaster of Paris, as a manure

By

Two lectures on agricultural chemistry

By Hind, Henry Youle

Manure matters

By Richard Jones