Studies on a New Herbicide, Oxadiazon (G-315, 17623-RP)
II. Effect of Soil Properties on the Herbicidal Activity in Paddy Field
1974 Volume 1974 Issue 17 Pages 59-64
Details
1974 Volume 1974 Issue 17 Pages 59-64
1) The herbicidal activity of Oxadiazon [5-t-butyl-3-(2, 4-dichloro-5-isopropoxyphenyl) 1, 3, 4-oxadiazoline-2-one] against barnyard grass under paddy field conditions varied in eight soil types. Nitrofen and MO-338 showed a similar variation as Oxadiazon.
2) Oxadiazone activity differed according to soil type. However, the change in activity was not correlated to any specific individual soil factor.
3) Oxadiazon activity in twenty different soils was closely related to the concentration of the herbicide present in the flooding water after herbicide application and puddling. The herbicidal activity was lowest in soils which caused the greatest reduction in Oxadiazon concentration.
4) There was a tendency that Oxadiazon showed higher herbicidal activity in a large volume weight soil than a small volume weight soil.
5) Soil color and degree of compaction after the puddling operation were not related to herbicidal activity.
