HortScience · 1986 · 111 citations · 0 references
AgricultureAgronomyPlant SciencesPlant NutritionSoil FertilitySoil-water RelationsIrrigationNutrient AvailabilitySoil Nutrient AvailabilitySoil PhWater ContentWater RelationsCompactionDivalent Ion EffectsFertilizer Interaction EffectsSoil Ph Effects On Nutrient AvailabilityWater Retention AmendmentsWater Retention MediaWater Retention PropertiesWater-limited Growth
Abstract Ligustrum lucidum Ait. ‘Compaction’ grown in hydrophilic polymer-amended medium required irrigation less frequently than plants in nonamended medium. Plants contained higher levels of N and K and lower levels of Ca, Mg, and other divalent cations when grown in polymer-amended medium, as compared to controls. Polymer was associated with maintenance of higher pH. With an osmocote rate increase from 15 to 45 g, a polymer × fertilizer interaction was observed. Dry weights of polymer-treated plants decreased and controls increased with increasing fertility.