Weaver, John E. (John Ernest), 1884-1966 Root development of vegetable crops - New York Mc Graw-Hill Book 1927 - xiii, 351 p. il. ; 24 cm. - Mc Graw-Hill Publications in the Agricultural and biological science . Incluye bibliografía e índice Subjects--Topical Terms: VEGETALESCLIMATOLOGIAAGRICULTURASUELOCULTIVOSRAICES