Chapter 1. Agricultural nitrogen transformations in soils, plants and the atmosphere: Beata Ku?ek -- Chapter 2. Adoption, diffusion and scaling of agricultural technologies in developing countries: Jonathan S. Colton -- Chapter 3. Agricultural bioenergy production: Katrin Heinsoo, Indrek Melts, Tiiu Kull -- Chapter 4. Agrobiodiversity for biological pest control in Sub-Saharan Africa: Duna Madu Mailafiya -- Chapter 5. Factors influencing water dynamics in agriculture: Karuppan Sakadevan -- Chapter 6. Greenhouse cooling systems and models for arid climate: Tilahun Workneh -- Chapter 7. Direct seeded rice in South Asia: Rajan Bhatt -- Chapter 8. Zinc application to rice genotypes under saline conditions: Muhammad Anwar-ul-Haq -- Chapter 9. Organic farming of potato in Iran: Seyed Alireza Ghadimi -- Chapter 10. Wheat root selections for sustainable production: Amir Raza.