كتب ذات صلة

Untersuchungen über die Stickstoffnahrung der Gramineen und Leguminosen

Row Spacing Affects Yields of Forage Grasses in the Brown Soil Zone of Saskatchewan.

Rational methods for predicting quality and digestible energy concentration of warm-season forages for ruminants

Populäres handbuch des grasbaus, futterpflanzenbaus und der milchwirthschaft.

• Michigan flora : a list of the fern and seed plants growing without cultivation
  المؤلفون: Beal, W. J.
• Index to the names of North American grasses : a report presented to the Society for the Promotion of Agricultural Science, at the Indianapolis meeting, 1890
  المؤلفون: Beal, W. J. ,  Lamson-Scribner, F.
• Grasses of North America for farmers and students ...
  المؤلفون: Beal, W. J.

• Variation in animals and plants
  المؤلفون: Vernon, Horace Middleton
• A text-book of plant physiology by George James Peirce ...
  المؤلفون: Peirce, George James
• A text-book of invertebrate morphology.
  المؤلفون: McMurrich, J. Playfair