Revista internacional de silvicultura e industrias forestales
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Library ResourceJournal Articles & BooksDecember, 1981China
Library ResourceReports & ResearchDecember, 1981Greece, Belgium, Iraq, Chile, Germany, Guatemala, Guinea-Bissau, Ireland, Ghana, Iran, Iceland, Costa Rica, Colombia, Cyprus, Hungary, Haiti, Italy, Brunei Darussalam, Ecuador, Cuba, India, Brazil, Canada, Africa
This course teaches the farmer about the water cycle. It covers rainfall, ground water, the water table, surface water, evaporation, and transpiration. It also delivers information on wells and springs, swamps, ponds, lakes, streams and rivers. It explains how water is necessary for life.
Library ResourceJournal Articles & BooksDecember, 1981United States of America, China, Italy
An international journal of forestry and forest industries
Library ResourceJournal Articles & BooksDecember, 1981Egypt, Morocco, United States of America, Philippines, South Africa, Iraq, Japan, Sweden, China, Myanmar, India, Senegal
This manual is designed to give detailed, practical advice on the various methodologies of organic recycling. Blue-green algae form a self-sufficient system which is capable of fixing atmospheric nitrogen in organic forms and which grows upon a free water surface. It is thus ideally suited for propagation in rice fields. The development and use of blue-green algae require special techniques. The manual summarizes the present status of algal biofertilizer technology for rice with practical information for its adoption by agricultural extension personnel and subject matter specialists.
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