waterloggedweakweatheringweedingwetlandwetting frontwheel track plantingwilting coefficientwilting pointwind erosion equationwindbreakwindrow compostingwindthrow moundxxenobioticxeralfsxerandsxerertsxericxerollsxerophytesxerultsyyieldyield curveyield goalyield sustainedzzero point of chargezero tillagezeta potentialzonal soilzpczymogenous flora
