Effects of vesicular–arbuscular mycorrhizal inoculation on the yield and phosphorus uptake of field-grown barley

• Published in: Soil biology & biochemistry 2000-10, Vol.32 (11), p.1691-1696
• Main Authors: Khaliq, A., Sanders, F.E.
• Format: Article
• Language: English
• Subjects: Agronomy. Soil science and plant productions; Barley; Biological and medical sciences; Crop yield; Economic plant physiology; Field study; Fumigation; Fundamental and applied biological sciences. Psychology; Glomus mosseae; Hordeum vulgare; P uptake; Phosphorus; Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...); VA-mycorrhiza
• ISSN: 0038-0717; 1879-3428
• DOI: 10.1016/S0038-0717(00)00086-9

In a field experiment on barley, the effects of soil application of phosphorus fertilizer and inoculum of Glomus mosseae on the mycorrhizal colonization of roots, crop yield and P uptake were evaluated in a natural or methyl bromide fumigated soil. Soil fumigation raised the amount of available nitrogen (NH 4–N+NO 3–N) in the soil by 13 mg kg −1. Although both soils were equalized for the N status by adding N fertilizer to non-fumigated soil, fumigated soil gave higher crop yield. The applied P increased the dry matter yield significantly but suppressed mycorrhizal infection. An overall small increase of 3% in total P uptake and a decrease of up to 2% in grain and straw yield were observed as a result of inoculation, which were statistically non-significant at P