TY - CHAP A1 - Ana I. Ribeiro‐Barros A2 - Maria J. Silva A3 - Isabel Moura A4 - José C. Ramalho A5 - Cristina Máguas‐Hanson A6 - Natasha S. Ribeiro ED1 - Amanullah ED2 - Shah Fahad Y1 - 2018-02-01 PY - 2018 T1 - The Potential of Tree and Shrub Legumes in Agroforestry Systems N2 - Nitrogen is the most yield-restraining nutrient in crop production globally. Efficient nitrogen management is one of the most important factor for improving nitrogen use efficiency, field crops productivity and profitability. Efficient use of nitrogen for crop production is therefore very important for increasing grain yield, maximizing economic return and minimizing nitrous oxide (N2O) emission from the fields and nitrate (NO3) leaching to ground water. Integrated nitrogen management is a good strategy to improve plant growth, increase yield and yield components, grain quality and reduce environmental problems. Integrated nitrogen management (combined use of chemical + organic + bio-fertilizers) in field crop production is more resilient to climate change. BT - Nitrogen in Agriculture SP - Ch. 12 UR - https://doi.org/10.5772/intechopen.69995 DO - 10.5772/intechopen.69995 SN - 978-953-51-3769-6 PB - IntechOpen CY - Rijeka Y2 - 2021-06-23 ER -