Published in Scientific Papers. Series A. Agronomy, Vol. LX
Written by Ahmet ALMACA, Ali COSKAN
A pot experiment was carried out to determine the effects of phosphorus as triple super phosphate and sulfur as CaSO4 (gypsum) applications along with mycorrhiza inculcation on wheat plant growth and nutrient uptake. Gypsum was applied as equivalent to 0, 40 and 80 kg S ha-1 with 0, 40 and 80 kg of P2O5 ha-1. Glomus mossea was used as an inoculant. The highest infection rate determined in 40 kg ha-1 S applied pots as 67%. Based on the mean values both S and P applications were decreased the infection rate. The highest shoot dry weight value was in mycorrhiza inoculated control plot which S and P were not applied (3.21 g); however, based on the mean values no statistical differences determined between mycorrhiza inoculated and non-inoculated pots. Mycorrhizal inoculation increased nitrogen contents of the plants, the highest mean nitrogen value gathered from mycorrhiza applied pots as 1.49%. Although the rather higher infection rate observed in mycorrhiza inoculated pot, P concentration was not influenced from these considerable infection rates. Ca concentration was significantly improved from P application, whereas Mg concentration was not affected from any of the treatment tested. Fe concentration of the plant was the highest in mycorrhiza inoculated and 80 kg ha-1 P2O5 applied pot as 45 mg kg-1, while there was no influence of gypsum application on Fe. Similarly, Zn contents was influenced from P application but other treatments were not effective. Surprisingly mycorrhiza inoculation was not effective as expected, even some parameters were adversely effected.
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