What is it about?
Echinochloa oryzicola, Schoenoplectus juncoides and Monochoria vaginalis are formidable weeds in paddy field. They are dominant in paddy field because of their strong torelance of Fe-toxicity.
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Why is it important?
For example, the population of Echinochloa crus-galli is smaller than that of E. oryzicola. That is because E. oryzicola has an strong torelance for Fe-toxity. Namely, whether or not weeds can survive in paddy fields is depends on the torelance of Fe-toxicity.
Perspectives
To reduce the weeds in paddy fields, the apprication of organic materials is important because it increase the Fe2+ content in soil solution, and thus the reduction of these weeds.
Dr. Takuhito Nozoe
national agricultural and food research organization
Read the Original
This page is a summary of: Effects of ferrous iron (Fe) on the germination and root elongation of paddy rice and weeds, Weed Biology and Management, March 2009, Wiley,
DOI: 10.1111/j.1445-6664.2008.00314.x.
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