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Soil P Buffer Capacity Effects on Leucaena leucocephala Response to Va Mychorrhizae

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Title:Soil P Buffer Capacity Effects on Leucaena leucocephala Response to Va Mychorrhizae
Authors:Kleinjans, John Klaaren
Date Issued:1989
Abstract:In two glasshouse experiments, Leucaena leucocephala was grown in different soils adjusted to several levels of available P, with half of the treatments inoculated with the vesicular-arbuscular mycorrhizal (VAM) fungus Glomus aggregatum.
The first experiment used two soils with different mineralogies but similar P buffer capacities. Each soil was adjusted to three P levels, and half of the treatments were fumigated with methyl bromide. Fumigation decreased plant growth, while VAM inoculation and added P increased it.
In the second experiment, four soils were used. The soils were selected to provide a wide range of P buffer capacities. All soils were fumigated and each was adjusted to nine P levels. An equation incorporating soil solution P concentration, soil P buffer capacity, and VAM inoculation accounted for 91% of the variation in plant P uptake.
URI/DOI:http://hdl.handle.net/10125/56336
Appears in Collections: M.S. - Agronomy and Soil Science


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