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结果 1-10 的 18
Oat production in Texas
1947
Atkins, Irvin Milburn | McFadden, E. S. (Edgar Sharp)
Onion Production in Ohio
1947
Comin, Donald
Ensayo comparativo de tipos de maíz procedentes de algunos estados de la República Mexicana
1947
Cárdenas Villareal, Humberto | Limón, Eduardo | Álvarez, Alfredo
"Este trabajo consiste en el estudio de un grupo de tipos de maíz recolectados de los estados de San Luis Potosí, Oaxaca, México y Jalisco con el objeto de determinar cuales son los que poseen caracteres agronómicos"
显示更多 [+] 显示较少 [-]The goat in relation to New Zealand agriculture : Dissertation submitted concerning Subsection (b) 605 of the Animal Husbandry Section of the Master of Agricultural Science degree
1947
Laing, William Isbister
Poor quality printed version digitised, due to the age of the manuscript the letters are blurred | Goats were introduced into New Zealand before it was settled by Europeans; for many years they have been present in every land district in the dominion, yet nobody has ever attempted a comprehensive survey of their uses or effects on agricultural production. In this dissertation an attempt will be made to describe the importance of goats in our present farm economy, giving some of their uses and some of their disadvantages.
显示更多 [+] 显示较少 [-]Soybean production in Missouri
1947
King, B. M. (Bascom Milton)
Breeding and feeding in spring lamb production
1947
Leveck, Henry Herbert
Price and production trends in Virginia truck crops
1947
Conner, M. C. (Maynard Calvin)
Range cattle production in western North Dakota
1947
Johnson, M. Bruce
Soil type and soil management factors in hemp production
1947
Vessel, A. J. (Anton Joseph) | Black, C. A (Charles Allen)
Range management and sheep production in the Bridger Mountains, Montana
1947
Heady, Harold F. | Clark, R. T. (Richard Turnbull) | Lommasson, T.
