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

Figure 2

Seasonal dynamics in soil nutrient supply rate and bioavailability (mean and standard error) of four different compounds ((a) , (b) , (c) P, and (d) K) in a shrub willow (S. miyabeana SX64) biomass crops that had been amended with organic wastes and commercial fertilizer.

(a)

(b)

(c)

(d)