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Abstract ▼ AI-Helper

In this research, the allelopathic effect of soybean meal on paddy weeds and composition of phenolic compounds of soybean meal were studied. When transplanted rice was treated with 2.00ton $ha^{-1}$ soybean meal, the fresh weight was 53.2% higher than untreated control. To the plant numbe...

In this research, the allelopathic effect of soybean meal on paddy weeds and composition of phenolic compounds of soybean meal were studied. When transplanted rice was treated with 2.00ton $ha^{-1}$ soybean meal, the fresh weight was 53.2% higher than untreated control. To the plant number of Echinochloa crus-galli, Monochoria vaginalis, Cyperus difformis, Scirpus juncoides and Aneilema keisak inhibitory effects show the range like from 40.6 to 100%. However there were no inhibitory effects on sedges of Eleocharis kuroguwai, Scirpus planiculmis, Cyperus serotinus Rottb. When treated with 5% aqueous extract of soybean meal, inhibitory effects to the plant number of E. crus-galli and A. keisak were decreased to 31.1% and 46.4%, respectively of control. Inhibition effect of the extract of soybean meal was higher on the root growth than on the shoot growth of E. crus-galli, A. keisak and S.juncoide. Soybean meal contains some phenolic compounds, such as p-coumaric acid, benzoic acid, caffeic acid, ferulic acid, trans-cinnamic acid and so on.

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