An international journal of forestry and forest industries
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Showing items 1 through 9 of 10.-
Library ResourceJournal Articles & BooksDecember, 1980India, Iraq, Honduras, United States of America, Italy
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Library ResourceJournal Articles & BooksDecember, 1980Uganda, Philippines, Asia
Revista internacional de silvicultura e industrias forestales
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Library ResourceJournal Articles & BooksDecember, 1980Honduras
Revue internationale des forts et des industries forestires
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Library ResourceJournal Articles & BooksDecember, 1980Kenya, United States of America, Belgium, Japan, Dominican Republic, Mexico, Tanzania, India, Bulgaria, Netherlands, Venezuela, Costa Rica, Barbados, Brazil
Methods for evaluating nutrient status in order to obtain better plant growth and increased yield are constantly being developed and improved. New analytical techniques and procedures for soil and plant analysis have been invented and tested in many countries and laboratories. There have been innovations in data processing leading to preparation of more refined and specific fertilizer recommendations. The purpose of the Consultation was: i.
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Library ResourceJournal Articles & BooksDecember, 1980Italy
The paper discusses the problems facing countries when managing stocks of fish that move between their EEZs and the EEZs of adjacent countries, or onto the high seas. The action needed depends on the pattern of movement of the stocks. The different patterns of movement are discussed; they vary from small local dispersions in which only a small proportion of the stock cross boundaries between national EEZs to long migrations in which virtually all the stock may move from one EEZ to another.
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Library ResourceJournal Articles & BooksDecember, 1980Bangladesh, Germany, Peru, Indonesia, Bulgaria, Bolivia, Portugal, Myanmar, Romania, Japan, Turkey, Uzbekistan, Italy, Brunei Darussalam, India, Bhutan, Paraguay, Mexico, Brazil, Greece, South-Eastern Asia
Projections reveal that to sustain the likely world population in the year 2000, an increase of 60 percent in agricultural production will be required. "Is there sufficient land to meet these needs?" becomes the overriding question. However, little precise information exists on which to base a reliable answer. Previous appraisals of the global extents of arable lands, to support present and future human populations, vary from 3 to 7 thousand million hectares. Estimates of the populations these lands can support, vary from 7.5 to 40 thousand million.
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Library ResourceJournal Articles & BooksDecember, 1980Benin, Nigeria, Zambia, Mali, Ghana, Congo, Sierra Leone, Niger, Colombia, Kenya, Liberia, Japan, Cameroon, Chad, Senegal, Sudan, Togo, Côte d'Ivoire, Africa
Policy makers as well as scientists have started to acquire an honest appreciation of the possibilities of reducing the wastage of materials which could be profitably utilized for improving or maintaining soil productivity. In addition, the great opportunities offered by making more efficient use of the potentials of biological nitrogen fixation in farming systems are now fully recognized. A number of recommendations and suggested guidelines were made by the various Working Groups during the two-week Workshop.
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Library ResourceJournal Articles & BooksDecember, 1980Indonesia, United States of America, Philippines, Uganda, China, Italy, Asia
An international journal of forestry and forest industries
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Library ResourceJournal Articles & BooksDecember, 1980
Revista internacional de silvicultura e industrias forestales
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Library ResourceJournal Articles & BooksDecember, 1980Switzerland, Belgium
General principles of plant nutrition don't furnish the concrete information, necessary for practical treatments in a given situation. Thus, the questions arise which parameters must be considered an how can they be determined. This leads to consider the concepts of nutrients diagnosis, as well as the methodology and the corresponding equipment and instrumentation, for putting it into practice.
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