The Scientific Basis of the Illinoi, System of Permanent Soil Fertility.
نویسنده
چکیده
MSS. intended for publication and books, etc.,intended for review should be sent to The Editor of Science, Garrison-onHudson, N. Y. THE SCIENTIFIC BASIS OF THE ILLINOI,S SYSTEM OF PERMANENT SOIL FERTILITY' IT is practically impossible to cover, in an adequate way, the scientific principles underlying the Illinois system of permanent soil fertility in the brief space of time allotted me on the program. Nevertheless, I shall point out the fundamental principles underlying the system without attempting to illustrate the points made by definite data as I should like to do. Eighty years ago Liebig, the father of agricultural chemistry, made the following statement:
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ورودعنوان ژورنال:
- Science
دوره 52 1332 شماره
صفحات -
تاریخ انتشار 2005