nutrient cycling - css.cornell.edu nut mngmt 1.pdfplant uptake of nutrients foliar uptake (aquatic...
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Practical Nutrient Management (I)
Nutrient Cycling
Essential for all life& its availability (or lack thereof) controls
the distribution of flora and fauna
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Its availability is controlled by 3 things
1.Sources
2.Sinks (pools)
3.Fluxes
For use by organisms, nutrients must be in a specific form –
each to its own…
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The largest sinks of nutrients are generally unavailable to organism,
But there is a large group of specialized organisms that can
transform this “unavailable” pool to usable form – and thus make it
available for all organism.Much of this transformation is soil
related and controlled by soil characteristics!
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Practical Nutrient Management (1)
• Nutrient Cycling• Nutrient Uptake• Nutrient Management• Fertilizers• Environmental Dynamics & Quality
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18 Essential Elements:
C, H, O, N, P, K, Ca, Mg and S - Macronutrients
Fe, Mn, B, Zn, Cu, Cl, Co, Mo & Ni - Micronutrients
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