Organic manuring and biofertilization approaches as potential economic and safe substitutes for mineral nitrogenous fertilization [electronic resource].

Includes references.

The present work aimed at throwing some light on the possibility of substituting, partially, the amount required of mineral nitrogen for fertilization ofa certain crop by organic manuring and biofertilization. Such an investigation would provide knowledge about to what extent these substitutes can replace mineral nitrogen fertilizer and how far they can affect the percentage of fertilizer N recovery (% FNR) by maize plant (Zea meys) grown on an alluvial soil from Moshtohor and a calcareous one from El- Noubaria. An additional desired environmental goal can be achieved through minimizing pollution of soil with mineral nitrogen and hence reducing its release to groundwater or surface water.

Summary in Arabic.

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