Meine Van Noordwijk, Kurniatun Hairiah
Mycorrhizal infection was studied in mixed samples from rain-forest roots in relation to soil fertility (pH(KCl), total P and P-Al), vegetation structure and litterfall in a rain forest reserve on terraces of different geological age. A marked lowering of topsoil pH and reduction in available phosphorus levels with increasing geological age was found. Vesicular-arbuscular mycorrhizal infection of root samples of mixed vegetation was negatively correlated with both soil pH and P-Al. © 1986 Martinus Nijhoff Publishers.
Institute for Soil Fertility, Harein (Gr.), P.O. Box 30003, Netherlands; Department of Soil Science, Fac. of Agriculture, Brawijaya University, Malang, Indonesia