First Principles of Soil Fertility

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Orange Judd, 1908 - 265 páginas
 

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Página 268 - The Cereals in America By THOMAS F. HUNT, MS, D.Agri., Professor of Agronomy, Cornell University. If you raise five acres of any kind of grain you cannot afford to be without this book. It is in every way the best book on the subject that has ever been written.
Página 268 - The Forage and Fiber Crops in America By THOMAS F. HUNT. This book is exactly what its title indicates. It is indispensable to the farmer, student and teacher who wishes all the latest and most important information on the subject of forage and fiber crops. Like its famous companion, "The Cereals in America...
Página 268 - The Book of Alfalfa History. Cultivation and Merits. Its Uses as a Forage and Fertilizer. The appearance of the Hon. FD COBURN'S little book on Alfalfa a few years ago has been a profit revelation to thousands of farmers throughout the country, and the increasing demand for still more information on the subject has induced the author to prepare the present volume, which is by far the most authoritative, complete and valuable work on this forage crop published anywhere. It is printed on fine paper...
Página 268 - Illustrated. 428 pages. 5l/2 x 8 inches. Cloth $1.75 The Book of Alfalfa History. Cultivation and Merits. Its Uses as a Forage and Fertilizer. The appearance of the Hon. FD COBURN'S little book on Alfalfa a few years ago has been a profit revelation to thousands of farmers throughout the country, and...
Página 221 - Furthermore, the mineral elements are relatively cheap, while the nitrogen is relatively expensive, and the economical use of this expensive element, nitrogen, is dependent to a large degree upon the abundance of the mineral elements in the soil. It is, therefore, advocated that for all crops and for all soils that are in a good state of cultivation, a reasonable excess of phosphoric acid and potash...
Página 267 - WILLIAM BURKETT, Director Kansas Agricultural Experiment Station. The most complete and popular work of the kind ever published. As a rule, a book of this sort is dry and uninteresting, but in this case it reads like a novel. The author has put into it his individuality. The story of the properties of the soils, their improvement and management, as well as a discussion of the problems of crop growing and crop feeding, make this book equally valuable to the farmer, student and teacher. Illustrated....
Página 268 - Alfalfa a few years ago has been a profit revelation to thousands of farmers throughout the country, and the increasing demand for still more information on the subject has induced the author to prepare the present volume, which is by far the most authoritative, complete and valuable work on this forage crop published anywhere. It is printed on fine paper and illustrated with many full-page photographs that were taken with the especial view of their relation to the text. 336 pages. 6>/
Página 241 - One will seek to know what the different forms of plant-food are, what they do, from what sources they can be obtained, and how he can use them to best advantage. He will become to some extent an investigator, and will, of necessity, take a deeper interest in his work.
Página 268 - If you raise five acres of any kind of grain you cannot afford to be without this book. It is in every way the best book on the subject that has ever been written. It treats of the cultivation and improvement of every grain crop raised in America in a thoroughly practical and accurate manner. The...

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