Assertion: fertilizer's nutrient | /r/HasProperty | released in time per unit area
Facets:
Source sentences:
text: This can be further simplified to take a form of where is the concentration of the given nutrient released in time per unit area , is the initial concentration of the nutrient, is the nutrient solubility in the matrix media, and is the diffusivity of the nutrients molecules (diffusion coefficient) in the matrix substance .