N-(unsubstituted or substituted)-4-substituted-6-(unsubstituted or substituted)phenoxy-2-pyridinecarboxamides or thiocarboxamides, processes for producing the same, and herbicides
N-(unsubstituted or substituted)-4-substituted-6-(unsubstituted or substituted)phenoxy-2-pyridinecarboxamides or thiocarboxamides, processes for producing the same, and herbicides
NOVEL N-(UNSUBSTITUTED OR SUBSTITUTED)-4-SUBSTITUTED-6-(UNSUBSTITUTED OR SUBSTITUTED)PHENOXY-2-PYRIDINECARBOXAMIDES OR THIOCARBOXAMIDES, PROCESSES FOR PRODUCING THE SAME, AND HERBICIDES