חיפוש מתקדם
Plant and Soil
Silber, A., Inst. Soils, Water and Environ. Sci., Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Ganmore-Neumann, R., Inst. Soils, Water and Environ. Sci., Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Ben-Jaacov, J., Dept. of Ornamental Horticulture, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
A greenhouse experiment was conducted to establish the optimal fertilization management for Leucadendron 'Safari Sunset' (Leucadendron salignum x L. laureolum). Addition of NPK and micronutrient fertilizer or raising phosphorus concentration by itself increased total fresh weight and improved plant growth. Elevating the total nutrients or P concentration increased N and P concentrations. Clusters of proteoid roots were present along the root system of plants irrigated with tap-water, whereas few proteoid roots developed on plants irrigated with complete nutrient solution when only P was omitted, and none developed in any of the other treatments with P present. The pH in leachate of plants irrigated with tap water or with high nutrient levels (100, 20 and 100 mg L-1 of N, P and K, respectively) was consistently lower compared with leachate without plants. Increasing concentration resulted in a significant change in the ΔpH values (pH in leachate with plant - pH in leachate without plant) from negative to positive. This phenomenon is probably related to rhizosphere effects due to plant and microbial activity.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Effects of nutrient addition on growth and rhizosphere pH of Leucadendron 'Safari sunset'
199
Silber, A., Inst. Soils, Water and Environ. Sci., Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Ganmore-Neumann, R., Inst. Soils, Water and Environ. Sci., Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Ben-Jaacov, J., Dept. of Ornamental Horticulture, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Effects of nutrient addition on growth and rhizosphere pH of Leucadendron 'Safari sunset'
A greenhouse experiment was conducted to establish the optimal fertilization management for Leucadendron 'Safari Sunset' (Leucadendron salignum x L. laureolum). Addition of NPK and micronutrient fertilizer or raising phosphorus concentration by itself increased total fresh weight and improved plant growth. Elevating the total nutrients or P concentration increased N and P concentrations. Clusters of proteoid roots were present along the root system of plants irrigated with tap-water, whereas few proteoid roots developed on plants irrigated with complete nutrient solution when only P was omitted, and none developed in any of the other treatments with P present. The pH in leachate of plants irrigated with tap water or with high nutrient levels (100, 20 and 100 mg L-1 of N, P and K, respectively) was consistently lower compared with leachate without plants. Increasing concentration resulted in a significant change in the ΔpH values (pH in leachate with plant - pH in leachate without plant) from negative to positive. This phenomenon is probably related to rhizosphere effects due to plant and microbial activity.
Scientific Publication
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