Seasonal Dynamics of N, P, and K in an Organic and Inorganic Fertilized Willow Biomass System

<div>Soil P and K bioavailability and supply (mean and standard error) in four sampling periods (seasons) of a shrub willow (<i>S. miyabeana </i>SX64) field that has been treated with two rates each of commercial fertilizer (CF), biosolid compost (BC), and dairy manure (DM). CT0 is unfertilized control.</div>

Applied and Environmental Soil Science

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Figure 4

Figure 4: Seasonal Dynamics of N, P, and K in an Organic and Inorganic Fertilized Willow Biomass System 