Impact of different nitrogen forms and K added on N and K losses into drainage water under cotton cultivation in clay soil of North Delta [electronic resource].

Includes references.

A field experiment was conducted to study the effect of applied fertilizer forms from nitrogen on N and K+ leaching through a clay soil into subsurface drains under cotton cultivation in north Delta) Egypt). The N-fertilizers forms (ammonium nitrate; ammonium sulphate and urea) were added to the soil with and without potassium sulphate fertilizer in recommended doses (70 and 48 unit/fed for N and K20, respectively) in two equal doses after the first irrigation and the second one, respectively.

Summary in Arabic.

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