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The causes for these low yields are variously estimated. Bad management, over-cropping, loss of soil fertility, washing away of soils, changing climatic conditions, and even overdrainage are among the more prominent of the causes named. Bad management is a very comprehensive term. Loss of soil fertility is a much used expression, but indifferently understood. Sometimes it is properly applied, but in many cases it probably does not apply except in so far as it may be synonymous with malnutrition of the crop. The improper functioning of common soils, because of the extended presence, at some time during each year, of excessive amounts of water, is seldom mentioned ;and yet one needs but to travel through the land with an observant eye in the cropping season to discover areas (even in the so-called garden spots )where half stands exist, fourth stands, and actually no stands for a half field or whole field, indicating failure in germination or very soon thereafter. He discovers sickly full stands, half stands and less; also drowned areas, and places where no crops have been planted skipped areas in fields that in other parts have a thrifty appearance of crops. It is difficult, indeed, to estimate the losses resulting from such conditions.
(Typographical errors above are due to OCR software and don't occur in the book.)
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Vendeur : Forgotten Books, London, Royaume-Uni
Paperback. Etat : New. Print on Demand. This book explores the critical role of drainage in maximizing crop yields, a topic of vital importance to farmers throughout history. The author argues that poor drainage is a major factor in low yields, often overlooked in favor of explanations like bad management or soil fertility loss. The book delves into the intricate physical relationships in soil, explaining how water affects soil temperature, ventilation, and structure. The author emphasizes that optimal conditions for plant growth require a balance of moisture, ventilation, and temperature. This book provides practical insights into the science behind effective drainage, discussing various drainage methods and their application in different landscapes, including swamps, alluvial plains, and marine marshes. By explaining the science and techniques of land drainage, the author empowers readers to improve their agricultural practices and ensure greater crop success. 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 réf. du vendeur 9781330767399_0
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Vendeur : PBShop.store US, Wood Dale, IL, Etats-Unis
PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000. N° de réf. du vendeur LW-9781330767399
Quantité disponible : 15 disponible(s)
Vendeur : PBShop.store UK, Fairford, GLOS, Royaume-Uni
PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000. N° de réf. du vendeur LW-9781330767399
Quantité disponible : 15 disponible(s)
Vendeur : Buchpark, Trebbin, Allemagne
Etat : Sehr gut. Zustand: Sehr gut | Seiten: 296 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar. N° de réf. du vendeur 25848798/2
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