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Floyd Perry Harrison

8 cilt bulundu.

Cilt sonuçları

Advancing Agricultural Horizons Through Research

Advancing Agricultural Horizons Through Research

University of Maryland. Agricultural Experiment Station, Alva Morgan Golden, Arthur Howard Thompson, George Louis Steffens, Lewis Polster Ditman, Willard Wynn Green, Floyd Perry Harrison, Herman S. Todd · Yayınevi bilinmiyor

964 sayfa · 1957

Agriculture

Research, Gateway to Agricultural Progress

Research, Gateway to Agricultural Progress

Donald Busby Dunlap, Edward Arthur Stahly, Floyd Perry Harrison, John Dominic Bowling, Ronald Allan Davis, University of Maryland. Agricultural Experiment Station, Walter T. McDonough, Arthur Howard Thompson, Hugh Gilbert Gauch, Lewis Polster Ditman · Yayınevi bilinmiyor

1044 sayfa · 1959

Agriculture

Maryland Tobacco

Maryland Tobacco

Donald Busby Dunlap, Edward Arthur Stahly, Floyd Perry Harrison, Henry Barr Engle, John Dominic Bowling, Ronald Allan Davis, University of Maryland. Agricultural Experiment Station, Walter T. McDonough, Arthur Howard Thompson, Hugh Gilbert Gauch, Lewis Polster Ditman · Yayınevi bilinmiyor

916 sayfa · 1959

Agriculture

Investigations on Insects Attacking the Sweet Corn Ear

Investigations on Insects Attacking the Sweet Corn Ear

Lewis Polster Ditman, Floyd Perry Harrison, Herman S. Todd · Yayınevi bilinmiyor

28 sayfa · 1955

Agriculture

Ecological Studies of Insects Attacking Canning Sweet Corn in Relation to Timing Chemical Control

Ecological Studies of Insects Attacking Canning Sweet Corn in Relation to Timing Chemical Control

Floyd Perry Harrison · Yayınevi bilinmiyor

32 sayfa · 1958

Agriculture

Myzocallis (Passerini)Biological Studies of Some Species of Myzocallis (Passerini).Floyd Perry Harrison

Biological Studies of Some Species of Myzocallis (Passerini).

Floyd Perry Harrison · Yayınevi bilinmiyor

104 sayfa · 1953

Myzocallis (Passerini)

Sweet cornFurther Studies on the Timing of Chemical Treatments for the Control of Insects Attacking the Sweet Corn EarFloyd Perry Harrison, Maryland Agricultural Experiment Station, Lewis Polster Ditman

Further Studies on the Timing of Chemical Treatments for the Control of Insects Attacking the Sweet Corn Ear

Floyd Perry Harrison, Maryland Agricultural Experiment Station, Lewis Polster Ditman · Yayınevi bilinmiyor

9 sayfa · 1960

Sweet corn

Beneficial insectsEcological Studies of Insects Attacking the Sweet Corn Ear in Relation to Timing Chemical ControlFloyd Perry Harrison

Ecological Studies of Insects Attacking the Sweet Corn Ear in Relation to Timing Chemical Control

Floyd Perry Harrison · Yayınevi bilinmiyor

156 sayfa · 1955

Beneficial insects