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Soil P Buffer Capacity Effects on Leucaena leucocephala Response to Va Mychorrhizae
|Title:||Soil P Buffer Capacity Effects on Leucaena leucocephala Response to Va Mychorrhizae|
|Authors:||Kleinjans, John Klaaren|
|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.
|Appears in Collections:||
M.S. - Agronomy and Soil Science|
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