| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition capable of exhibiting an outstanding effect on blast in rice farming, having a sufficiently controlling effect on disease damage of paddy-rice plant for the whole rice farming period by a row lateral application in a paddy field by making the composition include a specific compound and a fertilizer. SOLUTION: This composition comprises (A) 5-methyl-1,2,4-triazolo[3,4- b]benzothiazole of the formula and (B) a fertilizer (e.g. nitrogenous fertilizer such as urea, ammonium nitrate, etc., phosphatic fertilizer such as calcium superphosphate, etc., a potassium fertilizer, etc.). Preferably the content of the component A is 25-0.0001 wt.% calculated as the amount of an active ingredient. The composition is obtained, for example, by feeding 50-99.9 pts.wt. of granular or massive fertilizer into a blender free from a grinding element, spraying an aqueous solution containing 0.1-5 pts.wt. of a tacky agent in a blending operation process to uniformly distribute the tacky agent to the surface of the fertilizer and blending the mixture with a material containing 1-50 wt.% of the compound of the formula formulated into a powdery state. Consequently a secure controlling effect can be expected.
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