期刊
PLANT AND SOIL
卷 376, 期 1-2, 页码 165-175出版社
SPRINGER
DOI: 10.1007/s11104-013-1967-7
关键词
Zinc fertiliser; Phosphorus fertiliser; Arbuscular mycorrhizas (AM); Water use efficiency; Mycorrhiza defective tomato mutant (rmc); Solanum lycopersicum (Tomato)
资金
- Monash University, School of Biological Sciences
- Australian Research Council [FT120100463]
- Australian Research Council [FT120100463] Funding Source: Australian Research Council
Water solubility of zinc (Zn) fertilisers affects their plant availability. Further, simultaneous application of Zn and phosphorus (P) fertiliser can have antagonistic effects on plant Zn uptake. Arbuscular mycorrhizas (AM) can improve plant Zn and P uptake. We conducted a glasshouse experiment to test the effect of different Zn fertiliser materials, in conjunction with P fertiliser application, and colonisation by AM, on plant nutrition and biomass. We grew a mycorrhiza-defective tomato genotype (rmc) and its mycorrhizal wild-type progenitor (76R) in soil with six different Zn fertilisers ranging in water solubility (Zn sulphate, Zn oxide, Zn oxide (nano), Zn phosphate, Zn carbonate, Zn phosphate carbonate), and supplemental P. We measured plant biomass, Zn and P contents, mycorrhizal colonisation and water use efficiency. Whereas water solubility of the Zn fertilisers was not correlated with plant biomass or Zn uptake, plant Zn and P contents differed among Zn fertiliser treatments. Plant Zn and P uptake was enhanced when supplied as Zn phosphate carbonate. Mycorrhizal plants took up more P than non-mycorrhizal plants; the reverse was true for Zn. Zinc fertiliser composition and AM have a profound effect on plant Zn and P uptake.
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