I-nitrogen - ukusetshenziswa okusha kweprotocol kwizitshalo zamazambane
Iphrothokholi entsha yokulinganisa ukuthi izinhlobonhlobo zamazambane zingacaciswa kanjani izokhishwa ezinyangeni ezimbalwa ezizayo futhi izongezwa kwi-AHDB Nutrient Management Guide (RB209).