Gypsum and other sulfur materials for soil conditioning /

Mode of access: Internet.

Agstone used in Illinois in 1946,

Mode of access: Internet.

Agstone used in Illinois in 1945

Mode of access: Internet.

Agstone used in Illinois in 1944: Preliminary annual report,

Mode of access: Internet.

Agstone used in Illinois in 1947

Mode of access: Internet.

Abstracts of the minutes of the annual meeting.

Mode of access: Internet.

Wie verhalten sich roh- und reinerträge bei steigender düngung? ...

Lebenslauf.

Sulfur and its importance in food production, conclusions and recommendations of the Special Subcommittee on Fertilizer and Farm Machinery of the Committee on Agriculture, House of Representatives, based on hearings before the subcommittee February 20-23, 1951.

Mode of access: Internet.

Química agrícola.

Mode of access: Internet.

Die Ernährung der Pflanze.

"Illustr. Halbmonatschrift über die Fortschritte im Ackerbau u. Landwirtschaftlichen Düngewesen des in- u. Auslandes ..."

Year book.

Mode of access: Internet.

Annual fertilizer circular /

Title from cover.

Bulletin /

Separately cataloged in LC after vol. for Feb. 1958.

Fertilizer experiments /

Cover title.

Proceedings of the annual convention.

Mode of access: Internet.