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Challenges of developing sustainable nitrogen sources in agriculture : cover crops, nitrogen fixation and ecological principles

Challenges of developing sustainable nitrogen sources in agriculture : cover crops, nitrogen fixation and ecological principles

Wilke, Brook Jonathan

Text (2010)

Part of Electronic Theses & Dissertations

Field bean farming systems and prospects for the use of Rhizobium inoculum in Egypt

Field bean farming systems and prospects for the use of Rhizobium inoculum in Egypt

Chhetri, Purna Bahadur

Text (1993)

Part of Electronic Theses & Dissertations