John Frederick Ahrens

John Frederick Ahrens · Connecticut Agricultural Experiment Station

13 sayfa · 1976

Herbicides / Plants / Effect of herbicides on / Seedlings / Weed control

Ahrens, John Frederick, 1929- · Connecticut Agricultural Experiment Station, 1975.

16 sayfa · 1975

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Ahrens, John Frederick, 1929- · Connecticut Agricultural Experiment Station, 1959.

30 sayfa · 1959

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Ahrens, John Frederick, 1929- · Connecticut Agricultural Experiment Station, 1961.

42 sayfa · 1961

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Ahrens, John Frederick, 1929- · Connecticut Agricultural Experiment Station, 1968.

16 sayfa · 1968

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Ahrens, John Frederick, 1929- · Connecticut Agricultural Experiment Station, 1969.

28 sayfa · 1969

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Ahrens, John Frederick, 1929- · Connecticut Agricultural Experiment Station, 1962.

20 sayfa · 1962

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