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Advances in Agronomy
Advances in AgronomyPrepared under the auspices of the American Society of Agronomy. Vol. 3. Edited by A. G. Norman. Pp. x + 361. (New York: Academic Press, Inc., 1951.) 7.80 dollars.
Soil and Fertilizer Phosphorus in Crop Nutrition
Soil and fertilizer phosphorus in crop nutrition , Soil and fertilizer phosphorus in crop nutrition , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
Soybean physiology, agronomy, and utilization.
That's it, a book to wait for in this month. Even you have wanted for long time for releasing this book soybean physiology agronomy and utilization; you may not be able to get in some stress. ShouldExpand
Effects of Nonionic Surfactants on Root Growth and Cation Uptake.
Surfactants are frequently employed by biological investigators to reduce the surface tension of aqueous solutions and to bring about ready wetting of tissues. Maximum expression of this property isExpand
The Mineralization of the Organic Phosphorus of Various Compounds in Soil
R. W. PEARSON, A. G. NORMAN, AND CHUNG Ho THE amounts of phosphorus present in many soils in .forms available to higher plants and the value of green and farm manures as phosphorus carriers depend toExpand
The Threshold Moisture Content for Active Decomposition of Some Mature Plant Materials1
'"Tp HE range of moisture and temperature within 1 which aerobic soil microorganisms are capable of activity is rather wide. The rate of activity, however, within this range is not uniform. EachExpand
The effect of polymyxin on plant roots.
  • A. G. Norman
  • Chemistry, Medicine
  • Archives of biochemistry and biophysics
  • 1 October 1955
Abstract Root growth of young seedlings of barley and other species was substantially inhibited when placed in 5–10 p.p.m. solutions of the antibiotic, polymyxin B. The inhibiting effect wasExpand
Considerations in the Use of Surfactants in Plant Systems: A Review
Many different types of surfactants are employed by biological investigators to reduce the surface tension of aqueous solutions in order to enhance the wetting of tissues for the penetration ofExpand
Cellulose Decomposition by Aerobic Mesophilic Bacteria from Soil: III. The Effect of Lignin.
It is a matter of common observation that lignified plant materials are more slowly and less extensively decomposed than unlignified materials. Lignin, though not wholly unavailable, is utilized farExpand