Dual inoculation withAspergillus fumigatusandGlomus mosseaeenhances biomass production and nutrient uptake in wheat (Triticum aestivumL.) supplied with organic phosphorus as Na-phytate
✍ Scribed by J. C. Tarafdar; H. Marschner
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 484 KB
- Volume
- 173
- Category
- Article
- ISSN
- 0032-079X
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✦ Synopsis
In a pot experiment, wheat was grown for 50 days in two heat-sterilized low-phosphorus (P) soils supplied with organic P as Na-phytate. Seed inoculation with the phosphatase-producing fungus (PPF) Aspergillusfumigatus or soil inoculation with the vesicular-arbuscular mycorrhizal (VAM) fungus Glomus mosseae increased shoot and root dry weight and root length, phosphatase activity in the rhizosphere and shoot concentrations of P and to a lesser extent of K and Mg. As a rule, the greatest effects on those parameters were most in the combined inoculation treatment (PPF+VAM). Shoot concentrations of Cu and Zn were only enhanced by VAM, not by PPF. At harvest, depletion of organic P in the rhizosphere soil increased in the order of: sterilized soil < PPF < VAM < PPF+VAM which corresponded with the enhanced P concentrations in the plants. The results demonstrate that organic P in form of Na-Phytate is efficiently used by VAM and that use of organic P can be increased by simultaneous inoculation with phosphatase-producing fungi.