Nutrient Budgeting for Forest Garden Design
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ABCDEFGHIJ
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Area of demand
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Nutrient demanding trees20m2
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Nutrient demanding shrubs200m2
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Slightly demanding crops50m2
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Total270m2
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Nutrient requirements
Range from
toUnitNotes
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Nitrogen12kg / yrCan have too much N (unless the source is N-fixers) which increases risk of pests and diseases and sappy young growth
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Potassium1.693.23kg / yrMost soils contain plenty of potassium however almost all is insoluble and only made available by weathering processes.
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Phosphorus0.270.27kg / yrSoil levels generally very stable and fungi and normal weathering processes usually make enough for gowth.
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kg / year supplied
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My nutrient sources
How much?
UnitNitrogenPotassiumPhosphorus
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Comfrey100plants0.204.200.00
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Compost0.2tonnes1.001.340.26
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N-fixing plants - part shade50m20.250.000.00
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0.000.000.00
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0.000.000.00
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0.000.000.00
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0.000.000.00
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0.000.000.00
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0.000.000.00
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0.000.000.00
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Total kg / yr1.455.540.26
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