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Observations sur les examens de Laboratoire 1
Genest, Paul (1949)
Summary of the Research Progress Meeting Jan. 6, 1949
Kramer, Henry (1949)
調査 : マソナイト工業 : 製材屑より木材プラスチック
桑井, 源禎 (1949)
Aids to Biochemistry
(1949)
Medical News
(1949)
Signs and Symptoms
Truelove, Sidney (1949)
1-8.上下振動に基く構造物の動的捩り不安定について(理工學研究所第3回定期講演會講演アブストラクト)
内田, 郁雄 (1949)
Quality, Intensity and Field Distribution of Radiation Emitted from a New Type of Low Voltage Roentgen Therapy Tube**From the New York Skin and Cancer Unit, Department of Dermatology and Syphilology (Dr. Marion B. Sulzberger, Director) Post-Graduate Medical School, New York University-Belle vue Medical Center.
Lewis, Henry M.; Mutscheller, Arthur (1949)
El empobrecimiento de los suelos mendocinos cultivados con manzanos
Berman, Isaac; Avellaneda, Manuel; Trione, Sinibaldo (1949)
En el presente trabajo se han estudiado las pérdidas edafológicas de nitrógeno, fósforo, y potasio del suelo mendocino cultivado con manzano (Malus sylvestris MILL.). Los autores llegan a la conclusión de que durante el trienio 1945 / 1948 se han perdido: 357,65 toneladas de N₂, 96,50 toneladas de P₂ O₅ y 525,88 toneladas de K₂ O. Asimismo consignan que para restituir dichas pérdidas se debería devolver a los suelos, en forma de fertilizantes:
1778 toneladas de sulfato de amonio
...
