| 摘要 |
<p>PROBLEM TO BE SOLVED: To make the adsorption effect of a wood vinegar liquid and a bamboo vinegar liquid more certain and stable by solving the problem that it is known that the wood vinegar liquid or the bamboo vinegar liquid have effect for adsorbing a malodor, stamping out noxious insects and increasing the yield of agricultural products and these liquids are sprayed or mixed with soil or the like presently when used but they are allowed to run out by rainwater or the like to loose effect in a short period. SOLUTION: Clay is baked at a predetermined low temperature to form unglazed clay having many spaces therein. This unglazed clay is impregnated with the wood vinegar liquid or the bamboo vinegar liquid to be taken out. This impregnated clay is used as it is or dried if necessary to be used as an adsorbent.</p> |
