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N-Transfer Through Aspen Litter And Feather Moss Layers After Fertilization With Ammonium Nitrate And Urea, N A. Startsev, V J. Lieffers, S M. Landhausser, A Velazquez-Martinez

Aspen Bibliography

When fertilizer is broadcast in boreal forest stands, the applied nutrients must pass through a thick layer of either feather moss or leaf litter which covers the forest floor. In a growth chamber experiment we tested the transfer of N through living feather moss or aspen litter when fertilized with urea ((NH2)2CO) or NH4NO3 at a rate of 100 kg ha−1 and under different watering regimes. When these organic substrates were frequently watered to excess they allowed the highest transfer of nutrients through, although 72% of the applied fertilizer was captured in the substrates. In a field experiment we also …