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() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
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"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
수도에 대하여 본질적으로 근부흡수선택성 또는 안전성이 있다고 생각되는 몇 가지 약제들에 대하여 MO 모내기 후 처리를 대조로 SiCL 토양조건에서 시용약량, 혼화심도, 처리시기를 달리하여 모내기 전 토양혼화처리 (Ronstar, Saturn, TOK, Saturn-S)와 모내기 전 토양표면처리(Machete, PCP, MON-0385)를 실시하였던 바 그 결과를 요약하면 다음과 같다. 1. 제초효과 1차 조사결과(모내기 27일후 조사) 처리구 모두
Weed control tests with 6 herbicides which seem to have selectivity of absorption by roots of rice were carried out by the rate of application, the depth of incorporation and the time of application in comparison with the after transplanting treatment of MO in SiCL soil. Soil-incorporated treatment of Ronstar, Saturn, TOK and Saturn·5 were applied before transplanting and soil surface treatment of Machete, PCP and MON·0385 were applied. The results are summarized as follows: 1. Initial crop injury and growth Soil surface treatment before transplanting of PCP of 1,000g ai/10a caused heavy initial injury, which was recovered from by about 50 days after application. Saturn-S at 4kg prod.110a caused slight crop injury sectionally, which was soon recovered from. And little crop injury was caused by other treatments. 2. Effect in weed control Excellent weed control of 90 to 97.7 percent was obtained, when measured 27 days after transplanting, by all the treatments. More than 90 percent weed control was maintained for about 73 days after transplanting by all the treatments of Ronstar and Saturn-S of 3 to 4kg prod./10a. The treatments of MON-0385 of 175g ai/10a and TOK of 280g ai/10a showed somewhat poor weed control. 3. Yield No reduction of yield was observed at all the plots except the non·weeded plot at which 11.4 percent yield reduction was observed compared with the hand weeding plot. The yield was increased by the 1 DBT and 2 DBT treatments of Machete of 210g ai/10a, the treatments of Ronstar of 60g ai/10a, when incorporated to the depth of 2.5 and 12cm, the incorporation treatment of Saturn-S of 3kg prod./10a and 1 DBT treatment of MON-0385 of 175g ai/10a.
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