Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Studies on Effective Period and Dosage for IBP Granules Application to Control Rice Blast, Especially Neck Blast

IBP입제(粒劑)의 최적(最適) 살포시기(撒布時期) 및 살포량(撒布量) 구명(究明)을 위(爲)한 조사연구(調査硏究) -특(特)히 수수(穗首)도열병(病) 방제(防除)를 중심(中心)으로-

  • Park, Jong Seong (Dept. of Agronomy, Coll. of Agriculture, Chungnam Natl. Univ.) ;
  • Kim, Hong Gi (Dept. of Agricultural Biology, Coll. of Agriculture, Chungnam Natl. Univ.)
  • Published : 1983.06.30
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Abstract

This study was attempted to find out the most effective period and dosage for IBP granules application to control rice blast, especially neck blast. The results obtained from the study are as follows; The most effective application period was about 15-20 days before heading. The most effective dosage was 4kg per 10a. The most effective control on rice blast was obtained when 4kg per 10a of IBP granules was applied about 15 to 20 days before heading. Therefore it should be emphasized that application period and dosage should be considered together, when applied by farmers. However, it may be necessary to apply chemicals at least one or two times before or after rice heading, since applications of IBP Ec. in July and IBP granules in August may not be enough to control rice blast completely.

이삭도열병(病) 방제(防除)를 위(爲)한 IBP 17% 입제(粒劑)의 최적살포시기(最適撒布時期) 및 살포량(撒布量)을 구명(究明)하기 위해 실시(實施)한 이 실험(實驗)의 결과(結果)는 아래와 같다. IBP 입제(粒劑)의 최적살포시기(最適撒布時期)는 출수(出穗) 15~20일전(日前)쯤이 가장 효과적(效果的)인 경향이었다. 최적살포량(最適撒布量)은 4kg/10a 수준(水準)이었으나 살포시기(撒布時期)와 살포량(撒布量)이 복합적(複合的)으로 고려되어야 한다. 1회(回)의 IBP 유제살포(乳劑撒布)와 입제살포(粒劑撒布)로 도열병(病)의 완전방제(完全防除)는 불가능(不可能)하기 때문에 출수(出穗) 전후(前後)에 1~2회(回)의 추가약제살포(追加藥劑撒布)가 불가피하다.

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