INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY

Volume 16, No. 02, Month MARCH, Year 2020, Pages 247 - 258

Effects of soil moisture content and arbuscular mycorrhizal fungi on phosphorus fractions in soil

Chudaeng, D. and Teamkao, P.

Abstract Download PDF

The results of the investigation showed that soil moisture significantly affected Pwater, P-loosely, P-Fe and P-apatite. P-loosely and P-apatite contents were higher than the control, while P-water and P-Fe contents were high at 75% of soil water holding capacity (WHC) after 90 days of experiment. Arbuscular mycorrhizal fungi (Glomus sp. and Acaulospora sp.) inoculation significantly differed in P-Al, P-Ca and P-apatite contents. AMF inoculation reduced amounts of P-Al, P-Ca and P-apatite in soil. Interaction between soil moisture and AMF significantly differed in P-loosely and P-apatite with. P-Fe, P-Ca and P-apatite increased while P-water, P-loosely and P-Al decreased. It showed that drought stress reduced P-water content, while AMF addition reduced unavailable phosphorus forms of P-Al, P-Ca and P-apatite in soil.

Keywords

Soil moisture, Arbuscular mycorrhizal, Phosphorus fractions

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