Development and Activities of Roots of Crop Plants: A Study in Crop Ecology (Classic Reprint) - Couverture souple

Weaver, John E.

9781332920464: Development and Activities of Roots of Crop Plants: A Study in Crop Ecology (Classic Reprint)

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ISBN 10 : 1332920462 ISBN 13 : 9781332920464

Editeur : Forgotten Books, 2018

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Plate 1. A. Iowa Silver Mine corn 57 days old; root system shown in fig. 8. B. Potato 2.3 feet high on July 8; root system shown in fig. 11. C. Corn onS eptember 2; root system shown in fig. 9. D. Trench used in examining the roots of cereals. Plate 2. A. Marquis Spring wheat at Burlington, 1020. B. Marquis Spring wheat from a square meter at Burlington (left), Phillipeburg, and Lincoln. Plate 3. A. White Kherson oats from a square meter at Burlington (left), Phillipeburg, and Lincoln. B. Manchuria barley from a square meter at Burlington (left), Phillipeburg, and Lincoln. Plate 4. A. Four hundred plants of alfalfa from lower crop plats (left) and upper crop plats at Lincoln; and from Phillipeburg and Burlington, respectively. B. Three hundred plants of sweet clover from lower crop plats (left) and upper crop plats at Lincoln; and from Phillipeburg and Burlington, respectively. Plate 5. A. Wheat from Lincoln (left), Phillipeburg, and Burlington, May 18-21. B. Barley from Lincoln (left), Phillipeburg, and Burlington, May 18-21. Plate 6. A. Oats at Lincoln, May 18. B. Oats atP hillipeburg, May 19. C. Oats at Burlington, May 20. Plate 7. A. Wheat from Lincoln (left), Phillipeburg, and Burlington, June 10. B. Barley from Lincoln (left), Phillipeburg, and Burlington, June 10. Plate 8. A. Oats at Lincoln, June 10. B. Oats atP hillipeburg, June 10. C. Oats at Burlington, June 10. Plate 9. A. Barley grown in container with wax seals at 6-inch intervals. B. Same with upper portion of container removed. C. Wax seal at depth of 2feet (left) showing the penetration of the seal by roots and their abundance under field conditions. Fertilised soil at 2.5 feet depth filled with copiously branched roots. D. Arrangement of containers in greenhouse experiment, 1920-21. Plate 10. A. Development of barley on December 11 in unaerated, fertilised soil. B. Development of barley on
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�diteur: Forgotten Books
Date d'�dition: 2018
Langue: anglais
ISBN 10: 1332920462
ISBN 13: 9781332920464
Reliure: Broch�
Nombre de pages: 158
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Development and Activities of Roots of Crop Plants: A Study in Crop Ecology

John E. Weaver, Frank C. Jean

Edit� par Forgotten Books, 2024

ISBN 10 : 1332920462 ISBN 13 : 9781332920464

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Vendeur : Forgotten Books, London, Royaume-Uni

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Paperback. Etat : New. Print on Demand. This book presents a thorough examination of the relation between root development and activities of crop plants as they relate to crop ecology. Through multiple experiments conducted by the author, the book offers a detailed analysis of root depth and growth in several cereal crops. This work builds upon the author's previous research on root systems of native plants growing in various soil types found in grasslands, chaparral, sandhills, plains, and prairies. The book's experiments observe the position, extent, and activity of roots in relation to soil composition and environmental conditions across multiple growth stages. The investigations provide a valuable database for root distribution and absorption under cropping conditions, shedding light on the relative value of greenhouse experiments and the interpretation of results from both field and container studies. The insights presented in this book are of great significance to crop production and management, especially in semiarid or arid regions. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. N� de r�f. du vendeur 9781332920464_0

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