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Can tropical grasses grown as cover crops improve soil phosphorus availability?

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Figure

Table 2 Changes ((Time 0) and after grasses growth, as a function of soil P level and grass species, and a ∆) in soil phosphorus (P) fractions content between soils sampled before control treatment with soil kept fallow
Table 3 Changes (and after grasses growth, as affected by soil P level and grass species, and a control treatment with soil kept fallow
Table 4 Microbial biomass phosphorus (P), as affected by soil P level and grass species, and a control treatment with soil kept fallow
Table 6 Grass shoot, root, and total dry matter, grass shoot phosphorus (P) uptake before desiccation, P release from grass straw 60 days after desiccation, and decomposition of grasses straw, as affected by soil P level and grass species

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