Yazar
John Clay Overpeck
4 cilt bulundu.
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Corn production in New Mexico
John Clay Overpeck · Agricultural Experiment Station of the New Mexico College of Agriculture and Mechanic Arts
31 sayfa · 1928
Corn
Johnson grass eradication
John Clay Overpeck · New Mexico College of Agriculture and Mechanic Arts, Agricultural Experiment Station
15 sayfa · 1925
Johnson grass / Weeds / Control
Alfalfa variety tests
John Clay Overpeck, W. T. Conway · Agricultural Experiment Station of the New Mexico College of Agriculture and Mechanic Arts
11 sayfa · 1926
Alfalfa / Varieties
Cotton
John Clay Overpeck, W. T. Conway, Conway, W.T. · New Mexico College of Agriculture and Mechanic Arts, Agricultural Experiment Sttion
17 sayfa · 1924
Cotton / Cotton growing