S231 : Effects of Mycorrhizal Fungi and Phosphorus Fertilization on Growth and Yield of corn (Zea mays L.) in Competition with Weeds
Thesis > Central Library of Shahrood University > Agricultural Engineering > MSc > 2015
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Abstarct: To study the effect of mycorrhizal fungi inoculation and phosphorus fertilizer application on
growth traits and yield of corn in competition with weeds, a field experiment was conducted at
the Research farm of Shahrood University. Treatments were the factorial arrangement of
mycorrhizae (inoculated with Glomus mussea and non-inoculated), phosphorus fertilizer (triple
superphosphate source) at three levels (non-application, application of 25 and 40 kg of phosphate
fertilizer per hectare) and weeding with three levels (weeding all season, no weeding all season
and cultivating Chenopodium album). The results showed that compared with control,
inoculation improved the traits studied. In terms of weeding, inoculation and application of 25 kg
of phosphorus corn yield increased by 67% compared to non-inoculated and non-application of
phosphorus fertilizer in the presence of C. album. Biological yield increased by 44% for weeding
+ fertilization compared with non-inoculation states. The highest positive effect was found for
weeding× inoculation×25 kg P by which the 100-seed weight increased by 45.13%. No
weeding× inoculation decreased weed biomass by 32%. No weeding×inoculation×40 kg P
diminished the total number of weeds by 52.84%. Mycorrhizal fungi significantly increased the
percentage of phosphorus in corn and soil by 60.97 and 26.70%, respectively, compared to noninoculated case. Generally, mycorrhizal inoculation increased P uptake and water and
subsequently enhanced the growth and ability of corn to compete with weeds.
Keywords:
#Bio-fertilizer #seed yield #non-chemical weed management #competitiveness Link
Keeping place: Central Library of Shahrood University
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Keeping place: Central Library of Shahrood University
Visitor: