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1991年在黑龙江省查哈阳农场四分场五队进行了凯米丰田间除草药效试验。试验地前茬为玉米,有机质3.757％,pH8.32,所用品种为双丰305。在生产田内选3个点,每点10m~2,5月31日下午(杂草2～4叶期)利用背负式工农16型喷雾器一次性均匀喷洒。凯米丰用量400mL/亩,稀释50倍。施药前记载小区杂草种类及数量,施药后每7天(即6月份,7日、14日、21日)3次调查每一小区的除草效果,记载致死杂草种类及数量。结果表明,凯米丰对藜、苍耳、苣买菜、蓟的平均防效为82.96％、78.46％、69.36％、68.93％。
In 1991 in Chahayang Farm in Heilongjiang Province, four teams of five field Kemi Toyota herbicidal effect test. Before the test crop as corn, organic matter 3.757%, pH8.32, the use of varieties of Shuangfeng 305. In the production of field selection of three points, each point of 10m ~ 2, on the afternoon of May 31 (weeds 2 ~ 4 leaf stage) using a sprayer piggyback worker-peasant type one-time uniform spray. Kemi Feng dosage 400mL / mu, diluted 50 times. Before spraying, the types and quantity of weeds in the community were recorded. The weeding effect of each plot was investigated 3 times every 7 days (ie June, 7, 14 and 21) after application. The types and quantity of lethal weeds were recorded. The results showed that the average control effect of Kemi Feng was 82.96%, 78.46%, 69.36%, 68.93% on the pigweed, cocklebur, borage, and thistle.