Monthly rate at which the soil fertility replenishes naturally (without fertilizer).The less fertile soil, the higher replenish rate. When soil fertility is above 100%, natural replenishment will be negative and fertility will slowly decrease.
Mėnesio norma, kai dirvožemio derlingumas atsinaujina natūraliai (be trąšų). Kuo mažiau derlinga dirva, tuo didesnis atsinaujinimo rodiklis. Kai dirvožemio derlingumas viršija 100%, natūralus atsinaujinimas bus neigiamas, o derlingumas pamažu mažės.