Sagot :
Answer:
Though phosphorus is usually a lim- iting nutrient for most agricultural plants grown on volcanic ash soils, the Mt. Usu ash contains a sub- stantial amount of plant available phosphorus. This fact strongly suggests that nitrogen is the most important nutrient limiting revegetation of Mt.
Answer:
Nitrogen
Explanation:
Though phosphorus is usually a lim- iting nutrient for most agricultural plants grown on volcanic ash soils, the Mt. Usu ash contains a sub- stantial amount of plant available phosphorus (Shoji et al., 1993b). This fact strongly suggests that nitrogen is the most important nutrient limiting revegetation of Mt.