Organic nitrogen fertilisation of spring cereals - Schäfer, Winfried; Pihala, M.; Lötjönen, T.; Mikkola, H.; Granstedt, A.; Lilja, T. (vdf Hochschulverlag AG and der ETH Zurich, 2000)
Keywords: Ra; Ka; viherlannoitus; kateviljely; lietelanta; lannoitus; kevätviljat; sadon laatu; typpi; green mulch; liquid slurry; fertilization; spring wheat; cereal crops; fertilizer application; nitrogen; quality; technique; spring cereals; spreading technique; grain quality; organic culture; green manuring