Residual phytotoxicity effects of paraquat, glyphosate and glufosinate-ammonium herbicides in soils from field-treated plots

• Published in: International journal of agriculture and biology Vol. 11; no. 2; pp. 214 - 216
• Main Authors: Wibawa, W. (Universiti Putra Malaysia, Selangor (Malaysia). Dept. of Crop Science), Rosli Bin Mohamad (Universiti Putra Malaysia, Selangor (Malaysia). Dept. of Crop Science), Adam Bin Puteh (Universiti Putra Malaysia, Selangor (Malaysia). Dept. of Crop Science), Omar, D. (Universiti Putra Malaysia, Selangor (Malaysia). Dept. of Plant Protection), Juraimi, A.S, Abdullah, S.A
• Format: Journal Article
• Language: English
• Published: 01.03.2009
• Subjects: CUCUMIS SATIVUS; DRY MATTER CONTENT; GERMINATION; GLUFOSINATE; GLYPHOSATE; GROWTH; HEIGHT; HERBICIDES; LEAF AREA; PARAQUAT; PHYTOTOXICITY; RESIDUAL EFFECTS; RESIDUES; SOIL; ZEA MAYS
• ISSN: 1560-8530; 1814-9596

Soil residual phytotoxicity of commonly used herbicides in plantation crops in Malaysia were investigated through bioassay. Paraquat (Gramoxone) and glufosinate-ammonium (Basta) at 200, 400, 600 and 800 g a.i. per ha, and glyphosate (Round-up) at 400, 800, 1200 and 1600 g a.i. per ha were applied to field plots of 5 x 20 m2. Cucumber and corn were used in the bioassay to test the residual effect of herbicides in the soil of the treated plots. Soil, sampled at 1 day after treatment (DAT) and until 2 weeks (WAT) later, did not affect the seed germination and seedling development of cucumber and corn. Recommended rates, paraquat (400-600 g a.i. per ha), glufosinate-ammonium (500 g a.i.per ha) and glyphosate (1000 g a.i. per ha) applied to field to control weeds in oil palm plantation, therefore leave no phytotoxic residue in the soil.