An international journal of forestry and forest industries

Revue internationale des forts et des industries forestires

In view of the continuing increase in cost and scarcity of mineral fertilizers resulting from the use of high-cost fossil energy, there is renewed interest in organic recycling and biological nitrogen-fixation to improve soil fertility and productivity.

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.

An international journal of forestry and forest industries

Revista internacional de silvicultura e industrias forestales

The Convention on the Elimination of All Forms of Discrimination against Women (CEDAW) - currently ratified by 187 countries - is the only human rights treaty that deals specifically with rural women (Art. 14). Adopted in 1979 by the United Nations Generally Assembly, entered into force in 1981. The Convention defines discrimination against women as follows:

The Study Tour was financed by the UNDP and had the following objectives. To gain knowledge and experience in: - The multiplication of Azolla as a source of biological nitrogen, particular attention being paid to propagation of Azolla and its protection form disease, insect damage and adverse climatic conditions. - Harvesting and agricultural use of Azolla.

A major problem facing the areas already under cultivation, is the seriousness of soil degradation and loss of soil fertility due to indiscriminate misuse of agricultural lands, forests and grazing lands. The modern thinking assigns to soil conservation a comprehensive and more positive role than in the past.