LINGRA-N is a simple grass growth model which can calculate grass growth and yields under potential (i.e. optimal), water limited (i.e. rainfed) and nitrogen limited growing conditions. LINGRA-N is a generic model which can be used for different grass types growing under a large range of soil and weather conditions and with different mowing regimes.
The model is based on LINGRA.fst but can be applied more easily at the regional scale (for different soil-gras-weather-management combinations) and can be applied for N limited conditions too.