說明 |
55 p : illus ; 23 cm. |
Notes |
Cover-title. |
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The Joint committee is composed of representatives from the American Society of Agronomy, the American Society of Agricultural Engineers, the National Fertilizer Association and the National Association of Farm Equipment Manufacturers. |
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"Errata" slip mounted on back cover. |
Bibliography |
"Annotated bibliography of works on methods of applying fertilizer, compiled by E. Truog": p. 32-55. |
主題 |
Fertilizers.
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Fertilizers.
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添加作者 |
Truog, Emil, 1884-
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Jensen, Ove F.
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National Fertilizer Association (1925-
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