Bibliography On Ammonium Nitrate Fertilizers 1934 1956
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Manganese In Soils And Plants
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Author : R.D. Graham
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Manganese In Soils And Plants written by R.D. Graham and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Sixty years ago at the Waite Agricultural Research Institute, G. Samuel, a plant pathologist, and C. S. Piper, a chemist, published their conclusion that the cause of roadside take-all, a disease of oats, was manganese deficiency. This report, together with the concurrent and independent studies of W. M. Carne in Western Australia were the first records of manganese deficiency in Australia and came only six years after McHargue's paper which is generally accepted as the final proof of the essentiality of this element. There must have been a few doubts for some people at the time, however, as the CAB publication, 'The Minor Elements of the Soil' (1940) expressed the view that further evidence to this effect was provided by Samuel and Piper. Their historic contributions are recognised by the International Symposium on Manganese in Soils and Plants as it meets on the site of their early labours to celebrate the 60th anniversary. This year Australians also acknowledge 200 years of European settlement in this country and so the Symposium is both a Bicentennial and a diamond jubilee event which recognises the impact of trace elements on agricultural development in Australia. In a broader sense, a symposium such as this celebrates, as it reviews, the efforts of all who over the ages have contributed to our knowledge of manganese in soils and plants.
Soil Nitrogen
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Author : William Victor Bartholomew
language : en
Publisher:
Release Date : 1965
Soil Nitrogen written by William Victor Bartholomew and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Science categories.
Origin and distribution of nitrogen in soil. Soil inorganic nitrogen. Organic nitrogen in soils. Ammonium fixation and other reactions involving a nonenzymatic immobilization of mineral nitrogen in soil. Mineralization and immobilization of nitrogen in the decomposition of plant and animal residues. Nitrification. Denitrification. Symbiotic nitrogen fixation. Environmental factors in the fixation of nitrogen by the legume. Nonsymbiotic nitrogen fixation. The plant's need for and use of nitrogen. Movement of nitrogen in soil. Evaluation of incoming and outgoing processes thar affect soil nitrogen.
Organic Matter And Rice
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Author :
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1984
Organic Matter And Rice written by and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Agricultural wastes categories.
Bibliography Of Soil Science Fertilizers And General Agronomy
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Author : Commonwealth Bureau of Soils
language : en
Publisher:
Release Date : 1960
Bibliography Of Soil Science Fertilizers And General Agronomy written by Commonwealth Bureau of Soils and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Agriculture categories.
Bibliography Of Bureau Of Mines Investigations Of Coal And Its Products 1910 60
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Author : United States. Bureau of Mines. Division of Bituminous Coal
language : en
Publisher:
Release Date : 1962
Bibliography Of Bureau Of Mines Investigations Of Coal And Its Products 1910 60 written by United States. Bureau of Mines. Division of Bituminous Coal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Coal categories.
The Role Of Organic Matter In Modern Agriculture
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Author : Y. Chen
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Role Of Organic Matter In Modern Agriculture written by Y. Chen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
The use of organic residues as a means of maintaining and increasing soil fertility is of long-standing. This tradition has been somewhat neglected since the introduc tion of mineral fertilizers at low cost. More and more farmers and scientists are now showing renewed interest in the proper and effective use of org~tnic residues, composts and other recycled organic additives. The role and function of organic amendments in modern agricultural systems have become topics of major interest in the scientific and agricultural communities. Research work on residue disposal has provided new concepts on the interaction between organic components and soils as well as new handling technologies (e. g. pelletizing of organic residues). The trend to conserve energy has led scientists to study the minimal tillage system, to find ways of replacing conventional inorganic fertilizers with natural organic prod ucts or microbial preparations, and to develop new composting methods. The drive to achieve higher yields in commercial greenhouse farming has led to a search for optimum substrates as growth media and for improved management techniques. This has led to the introduction of organic substitutes for peat, nota bly those originating from agricultural wastes. Another important aspect is the current interest in organic farming, where use of synthetic chemicals is avoided or prohibited. An increasing percentage of the population in highly developed countries is willing to pay premium prices for food produced on soils where inorganic fertilizers and other agricultural chemicals have not been used.
Chemistry And Technology Of Fertilizers
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Author : Archie Vivian Slack
language : en
Publisher:
Release Date : 1967
Chemistry And Technology Of Fertilizers written by Archie Vivian Slack and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Fertilizer industry categories.
The Rice Economy Of Asia
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Author : Randolph Barker
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1985
The Rice Economy Of Asia written by Randolph Barker and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Business & Economics categories.
The purpose of this book is to present a comprehensive picture of the role of rice in the food and agricultural sectors of Asian nations.
Peach Culture In Missouri
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Author : Henry Daggett Hooker
language : en
Publisher:
Release Date : 1923
Peach Culture In Missouri written by Henry Daggett Hooker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1923 with Agriculture categories.
Principles And Practices Of Rice Production
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Author : Surajit K. De Datta
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1981
Principles And Practices Of Rice Production written by Surajit K. De Datta and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Rice categories.