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Inorganic Plant Poisons and Stimulants PDF Author: Winifred E. Brenchley
Publisher: Cambridge University Press
ISBN: 110750239X
Category : History
Languages : en
Pages : 162

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Book Description
First published in 1927, this book examines the effect of various inorganic substances on the growth of plants. Brenchley performs experiments to prove that certain compounds then in use in artificial fertilisers sometimes had a deleterious effect on the plants to which they were applied in various settings.

Inorganic Plant Poisons and Stimulants

Inorganic Plant Poisons and Stimulants PDF Author: Winifred E. Brenchley
Publisher: Cambridge University Press
ISBN: 110750239X
Category : History
Languages : en
Pages : 162

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Book Description
First published in 1927, this book examines the effect of various inorganic substances on the growth of plants. Brenchley performs experiments to prove that certain compounds then in use in artificial fertilisers sometimes had a deleterious effect on the plants to which they were applied in various settings.

Inorganic Plant Poisons and Stimulants

Inorganic Plant Poisons and Stimulants PDF Author: Winifred Elsie Brenchley
Publisher: Theclassics.Us
ISBN: 9781230287379
Category :
Languages : en
Pages : 44

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Book Description
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, ..

Inorganic plant poisons and stimulants

Inorganic plant poisons and stimulants PDF Author: Winifred Elsie Brenchley
Publisher:
ISBN:
Category :
Languages : en
Pages : 110

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Inorganic Plant Poisons and Stimulants

Inorganic Plant Poisons and Stimulants PDF Author:
Publisher: CUP Archive
ISBN:
Category : Botanical chemistry
Languages : en
Pages :

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Inorganic Plant Poisons and Stimulants, By Winifred E. Brenchley

Inorganic Plant Poisons and Stimulants, By Winifred E. Brenchley PDF Author: Winifred Elsie Brenchley
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Inorganic Plant Poisons and Stimulants (Classic Reprint)

Inorganic Plant Poisons and Stimulants (Classic Reprint) PDF Author: Winifred E. Brenchley
Publisher: Forgotten Books
ISBN: 9780266241447
Category : Science
Languages : en
Pages : 140

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Book Description
Excerpt from Inorganic Plant Poisons and Stimulants Ever since the physiological side Of botany began to emerge from obscurity, the question Of the relation between the nutrition and the growth of the plant has occupied a foremost position. All kinds of theories, both probable and improbable, have been held as to the way in which plants obtain the various components of their foods. But quite early in the history of the subject it was acknowledged that the soil was the source Of the mineral constituents of the plant food, and that the roots were the organs by which they were received into the plant. A new chapter in the history of science was begun when Liebig in 1840 first discussed the importance of inorganic or mineral substances in plant nutrition. This discussion led to a vast amount of work dealing with the problem of nutrition from many points of view, and the general result has been the sorting out of the elements into three groups, nutritive, indifferent, and toxic. Thus calcium, phosphorus, nitrogen and potassium are classed as nutritive, arsenic, copper and boron as toxic, and many others are regarded as indifferent. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Inorganic Plant Poisons and Stimulants. With Plates and a Bibliography.

Inorganic Plant Poisons and Stimulants. With Plates and a Bibliography. PDF Author: Winifred Elsie BRENCHLEY
Publisher:
ISBN:
Category :
Languages : en
Pages : 134

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A General Review of Inorganic Plant Poisons and Stimulants and a Special Examination of the Toxicity of Iodine and Nickel to Buckwheat Grown in Solution Cultures

A General Review of Inorganic Plant Poisons and Stimulants and a Special Examination of the Toxicity of Iodine and Nickel to Buckwheat Grown in Solution Cultures PDF Author: Marjorie Cotton
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Die Mineralische Ernährung der Pflanze / Mineral Nutrition of Plants

Die Mineralische Ernährung der Pflanze / Mineral Nutrition of Plants PDF Author:
Publisher: Springer-Verlag
ISBN: 3642947298
Category : Science
Languages : de
Pages :

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Plants Poisonous to Live Stock

Plants Poisonous to Live Stock PDF Author: Harold Cecil Long
Publisher: DigiCat
ISBN:
Category : Fiction
Languages : en
Pages : 131

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Book Description
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).