Influence of arbuscular mycorrhiza and phosphate rock on uptake of major nutrients by Acacia mangium seedlings on degraded soil |
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| Authors: | M A Satter M M Hanafi T M M Mahmud H Azizah |
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| Institution: | (1) Soil Science Division, Bangladesh Agriculture Research Institute (BARI), Joydebpur, Gazipur, Bangladesh;(2) Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;(3) Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia |
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| Abstract: | To investigate the effects of arbuscular mycorrhiza (AM) and phosphorus (P) source on the uptake of major nutrients by Acacia mangium seedlings, three P sources were used: (1) Gafsa phosphate rock (GPR), (2) China phosphate rock (CPR), and (3) triple superphosphate
(TSP). The plant samples were analyzed at 60, 75, 90, 105, 120, and 135 days after planting (DAP) for their N, P, K, Ca, and
Mg contents. The uptake of these nutrients was significantly influenced by AM inoculation. Nutrient use efficiency in the
AM-inoculated seedlings was also significantly higher than that in uninoculated seedlings. The effect of P sources on the
uptake of these nutrients decreased in the order of TSP>GPR>CPR>control. There was a significant (P<0.05) interaction effect of AM and P source on P and K uptake by A. mangium. The uptake of P and K by mycorrhizal seedlings supplemented with TSP was significantly higher than that provided with other
sources of P treatments. As a natural and cheaper P source, GPR might be used in combination with AM for growing A. mangium seedlings on degraded tin tailings. |
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| Keywords: | Arbuscular mycorrhiza Phosphate rock Acacia mangium Degraded soil Nutrient use efficiency Plant uptake |
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