Theoretical Assessment of Potential for Increasing Productivity of Sugarcane through Increased Nitrogen Fertilisation
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چکیده
PAR, J.lmol/m2/s x 10o o Environment. The standard environment comprised 50 'standard' weeks (-1 year), a week being defined as the period during which 58 heat units (HU) accumulate (mean annual temperature at Mount Edgecombe, 20,3°C, giving 8,3 HU/day, using a base temperature of 12, or 58 HU/wk). Mean annual photosynthetically active radiation (PAR) income at Mount Edgecombe is 7,9 Ml/mvday, giving 55,3 MJ/m per standard week. The Mount Edgecombe climate was used because the Experiment Station is situated more or less at the centre of the coastal sugarcane belt.
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