Archive image from page 197 of Dairy farming being the. Dairy farming : being the theory, practice, and methods of dairying dairyfarmingbein00shel Year: 1880 136 DAIRY FARMING. grown in the soil. Dr. Wolff raised in such a solution four perfect oat plants, with 40 stems and 1,.j35 well-developed seeds. Dr. Nobbe ob- tained a Japanese buckwheat plant, 9 feet high, its roots ha<l been immersed only in watery solutions. The above were obtained in the ' noi-mal solutions.' ATiat would result if one of the necessary food ingredients were omitted ? Fig. 43.âExPEatrMENTS in â Water-Cultuke.
Archive image from page 197 of Dairy farming being the. Dairy farming : being the theory, practice, and methods of dairying dairyfarmingbein00shel Year: 1880 136 DAIRY FARMING. grown in the soil. Dr. Wolff raised in such a solution four perfect oat plants, with 40 stems and 1,.j35 well-developed seeds. Dr. Nobbe ob- tained a Japanese buckwheat plant, 9 feet high, its roots ha<l been immersed only in watery solutions. The above were obtained in the ' noi-mal solutions.' ATiat would result if one of the necessary food ingredients were omitted ? Fig. 43.âExPEatrMENTS in â Water-Cultuke. (By Dr. Nihhe, at the ExpcriTtiental Station in Tluirandt, Saa-ony.) The above en£rravin<7 is copied from of buckwheat plants, jTrown with the roots immersed in jars containing various solations of the infrredieuts of pbiut-food in water. Tlie jilants were supported by perforated corks reiting on the covers of the jars, and by upright sticks. In jars I, and w-s a nonnnl notniion, that is, a solution containiu' nil the essential ingredients of plant-food, incluiliug potassium ns chloride. The plnnt in was nearly 3J feet high. The solution in II. was the same as normal solution in I. and La, except that l)Otassium was omitted in the jar II. The plant was scarcely 3 inches hib. The jar commenced as II., that is, without potassium, but potassium chloride was afterwards added. VI. contained the normal solution, except that sodium was substituted for potassium. IX., X., XI., and III., same as I., except that IX. contained no lime, X. no chlorine, and XI. no nitrogen, and III. had nitrate instead of chloride of potassium. weighing, air-dry, 4,786-fold the weight of the seed, and bearing 7'J6 ripe and 108 imperfect seeds. And Dr. Knop used to delight in showing his friends a young oak-tree, very small indeed, but the growth of which had been norma, though Tliis is answered in Dr. Nobbe's experiments. The engraving (Fig. 4.'5), with the explanations,
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