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Author :
Publisher : CUP Archive
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4./5 ( download)
Download or read book Inorganic Plant Poisons and Stimulants written by and published by CUP Archive. This book was released on with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Winifred Elsie Brenchley
Publisher : Createspace Independent Publishing Platform
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.3/5 (91 download)
Download or read book Inorganic Plant Poisons and Stimulants written by Winifred Elsie Brenchley and published by Createspace Independent Publishing Platform. This book was released on 1914 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last century great and widespread changes have been made in agricultural practice-changes largely associated with the increase in the use of artificial fertilisers as supplements to the bulky organic manures which had hitherto been used. The value of certain chemical compounds as artificial manures is fully recognised, yet many attempts are being made to prove the value of other substances for the same purpose, with a view to increase in efficiency and decrease in cost. The interest in the matter is naturally great, and agriculturists, botanists and chemists have all approached the question from their different standpoints. In the following pages an attempt is made to correlate the work that has been done on a few inorganic substances which gave promise of proving useful in agricultural practice. Much of the evidence put forward by different workers is conflicting, and it is clear that no definite conclusions can yet be reached. Nevertheless, examination of the evidence justifies the hope that results of practical value will yet be obtained, and it is hoped that the analysis and coordination of the available data put forward in this book will aid in clearing the ground for those investigators who are following up the problem from both the academic and the practical standpoints.
Author :
Publisher :
ISBN 13 :
Total Pages : 364 pages
Book Rating : 4.7/5 (37 download)
Download or read book The Plant World written by and published by . This book was released on 1915 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.:/5 (3 download)
Download or read book International Sugar Journal written by and published by . This book was released on 1915 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Harold C. Long
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.F/5 ( download)
Download or read book Plants poisonous to live stock written by Harold C. Long and published by . This book was released on 1917 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Harold Cecil Long
Publisher : DigiCat
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.8/5 (596 download)
Download or read book Plants Poisonous to Live Stock written by Harold Cecil Long and published by DigiCat. This book was released on 2022-07-21 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preparation of this handbook was undertaken because of the great lack of readily available and reliable information on the subject in English scientific literature. Many of the facts were known to a few interested persons, but many others were so scattered here and there in technical reports and journals that they were scarcely known even to expert chemists and botanists. The subject is of importance for farmers and veterinary surgeons alike, for the annual loss of stock due to poisonous plants, though not ascertainable, is undoubtedly considerable. It was felt that notes on mechanical injury caused by plants and on the influence of plants on milk might usefully be included, as in some degree related to poisoning; this has therefore been done. On the other hand, a number of cultivated plants (e.g. Rhus, Wistaria) which are poisonous have not been included because exotic and hardly likely to be eaten by stock. Fungi generally also find no place in the volume, as they are sufficiently extensive to deserve a volume to themselves, and are far less readily identified than flowering plants. The dividing line between plants that are actually poisonous and those which are only suspected is far from clear, but a division was considered desirable for the convenience of the reader, and an endeavor has been made to give a sound but brief statement as to the present information on plants poisonous to livestock in the United Kingdom, with symptoms, toxic principles, and a list of the more important references to the bibliography in relation to each plant included in Chapters II to VI (the numbers corresponding with the numbers in the Bibliography).
Author : Winifred Elsie Brenchley
Publisher : Theclassics.Us
ISBN 13 : 9781230287379
Total Pages : 44 pages
Book Rating : 4.2/5 (873 download)
Download or read book Inorganic Plant Poisons and Stimulants written by Winifred Elsie Brenchley and published by Theclassics.Us. This book was released on 2013-09 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ... CHAPTER VIII CONCLUSIONS In the foregoing chapters a very limited number of plant poisons have been considered, yet there is sufficient evidence to show that even these few differ considerably in their action upon plant-life. This action is most variable, and it is impossible to foretell the effect of any substance upon vegetative growth without experiments. The degree of toxicity of the different poisons is not the same, and also one and the same poison varies in the intensity and nature of its action on different species of plants. While certain compounds of copper, zinc and arsenic are exceedingly poisonous, compounds of manganese and boron are far less deleterious, so that a plant can withstand the presence of far more of the latter substances than of the former. Again, the tested compounds of copper, zinc and arsenic do not seem to stimulate growth, even when they are applied in the smallest quantities, whereas very dilute solutions of manganese and boron compounds decidedly increase growth. But, differentiation occurs even in this stimulative action, for while manganese is the more effective in stimulating barley, boric acid is far more potent for peas, the shoots being particularly improved. A consideration of the experimental work that has been done on this subject of poisoning and stimulation leads one to the inevitable conclusion that it is not true to maintain the hypothesis that all inorganic plant poisons act as stimulants when they are present in very small quantities, for while some poisons do increase plant growth under such conditions, others fail to do so in any circumstances. It is probable that what has been found true with the few substances tested would prove to be similarly true over a much wider range of poisons, ..
Author : Rothamsted Experimental Station
Publisher :
ISBN 13 :
Total Pages : 546 pages
Book Rating : 4.3/5 (91 download)
Download or read book Rothamsted Memoirs on Agricultural Chemistry and Physiology written by Rothamsted Experimental Station and published by . This book was released on 1914 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rothanstead experimental station, Harpenden, Eng
Publisher :
ISBN 13 :
Total Pages : 542 pages
Book Rating : 4.:/5 (28 download)
Download or read book The Rothamstead Memoirs on Agricultural Science written by Rothanstead experimental station, Harpenden, Eng and published by . This book was released on 1914 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rothamsted Experimental Station
Publisher :
ISBN 13 :
Total Pages : 542 pages
Book Rating : 4.3/5 (126 download)
Download or read book Rothamsted Memoirs written by Rothamsted Experimental Station and published by . This book was released on 1914 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Isaac Bayley Balfour
Publisher :
ISBN 13 :
Total Pages : 982 pages
Book Rating : 4.F/5 ( download)
Download or read book Annals of Botany written by Isaac Bayley Balfour and published by . This book was released on 1914 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 1-13 include Botanical necrology for 1887-89; vols. 1-4 include section called Record of current literature.
Author : John Bennet Lawes
Publisher :
ISBN 13 :
Total Pages : 542 pages
Book Rating : 4.3/5 (243 download)
Download or read book Rothamsted Memoirs on Agricultural Chemistry and Physiology. (From the 'Philosophical Transactions') written by John Bennet Lawes and published by . This book was released on 1914 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : University of California, Berkeley
Publisher :
ISBN 13 :
Total Pages : 680 pages
Book Rating : 4.3/5 (91 download)
Download or read book University of California Publications in Agricultural Sciences written by University of California, Berkeley and published by . This book was released on 1917 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles Bernard Lipman
Publisher :
ISBN 13 :
Total Pages : 1012 pages
Book Rating : 4.:/5 (321 download)
Download or read book The Distribution and Activities of Bacteria in Soils of the Arid Region written by Charles Bernard Lipman and published by . This book was released on 1912 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles Bernard Lipman
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.3/5 (117 download)
Download or read book Experiments on the Effects of Constituents of Solid Smelter Wastes on Barley Growth in Pot Cultures written by Charles Bernard Lipman and published by . This book was released on 1917 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1644 pages
Book Rating : 4.E/5 ( download)
Download or read book British Medical Journal written by and published by . This book was released on 1927 with total page 1644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jim E. Riviere
Publisher : CRC Press
ISBN 13 : 1420018442
Total Pages : 412 pages
Book Rating : 4.4/5 (2 download)
Download or read book Biological Concepts and Techniques in Toxicology written by Jim E. Riviere and published by CRC Press. This book was released on 2006-03-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlighting the latest advances in molecular biology, mathematical modeling, quantitative risk assessment, and biopharmaceutical development, this reference presents how current scientific applications and methods impact and revolutionize mainstream toxicological research. Presenting findings from disciplines that will impact the future of toxicol
