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THE FATE OF YOUR N FERTILIZER

Humphreys, E., Freney, J.R., Constable, G.A., Smith, J.W.B., Lilley, D., Rochester, I.J.

The objective of the experiments reported in this paper is to determine the fate of fertilizer nitrogen applied to the grey clays in the Namoi Valley.

EFFECT OF TILLAGE PRACTICE & ROTATION ON NITROGEN FERTILISER STRATEGY

Constable, G.A.

One of the aims of this project is to assess the N fertiliser requirements of cotton under more enlightened tillage systems currently being adopted.

The Fate of Nitrogen Fertilizer Applied to Cotton

Humphreys, Liz, Freny, John, Lilley, Dianne, Smith, Barry

Cotton growers commonly apply nitrogen (N) fertilizer at rates of between 100 and 200 kg N/ha, yet the cotton plants seldom recover more than 40% of the applied N, and often much less.