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|Title:||The Effect of Irrigation and Nitrogen Fertilizer on Nitrate Nitrogen Concentration in Cotton Petioles|
Soil pore system
|Abstract:||Determination of the petiole nitrate nitrogen concentration (PNN) in the youngest fully expanded leaf (YFEL) of cotton is a useful indicator of plant nitrogen status. In a review of literature Hearn (1981) reported for various phenological stages, l evels of petiole nitrate nitrogen (PNN) adequate for crop growth. These declined from 14000 - 25000 mg kg-1 at first square to 20QO mg kg- 1 at first open boll. He reported a critical level of 2000 mg kg- 1 above which growth would not decline.|
|Appears in Collections:||1988 Australian Cotton Conference|
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|ACConf88-302102019.pdf||Conference paper||210.41 kB||Adobe PDF||View/Open|
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