Average height of 10 trees planted on reclaimed, mined-over land
Growth factor added Nothing added 100 kg/ha N 50 kg/ha P 2 cm/wk water
no lime 56 45 63 50
lime added 85 170 58 62
Consider the data in the accompanying table giving the average height of 10 trees planted in order to revegetate a disturbed soil. What was the first limiting factor for tree growth on this soil?
A) soil pH B) nitrogen C) phosphorus D) water
A
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