Use of nutrient: phosphorus ratios to evaluate the effects of vesicular arbuscular mycorrhiza on nutrient uptake in unsterilized soils |
| |
Authors: | J Arines A Vilariño |
| |
Institution: | (1) U.E. de Fisíologia Vegetal, Instituto de Investigaciones Agrobiológicas de Galicia (CSIC), Apartado 122, E-15080 Santiago de Compostela, Spain |
| |
Abstract: | Summary Red clover was grown in soil previously treated with P at various rates, and growth, nutrient uptake, nutrient uptake in relation to phosphorus values, and levels of vesicular-arbuscular mycorrhizal (VAM) infection were determined. The soil was a silty clay loam and Glomus lacteum was the only fungus colonizing the plant roots. An examination of the effects of various rates of P application and of VAM colonization on nutrient (P, K, Ca, Mg, Mn, Fe, and Zn) uptake showed that the Mg : P ratio significantly increased and the Mn : P ratio significantly decreased with increasing VAM infection. It is concluded that in the Trifolium pratense-Glomus lacteum symbiosis, mycorrhizae improve Mg uptake and depress Mn uptake. |
| |
Keywords: | Manganese uptake Red clover Relative nutrient uptake Vesicular-arbuscular mycorrhizae Trifolium pratense Glomus lacteum Phosphorus uptake |
本文献已被 SpringerLink 等数据库收录! |
|