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为适应农业现代化发展的需要,黑龙江省植物保护学会于1979年9月6日至11日在哈尔滨举行了杂草防除学术讨论会参加会议的有有关杂草防除的科技人员,并邀请了沈阳、华南农学院,沈阳化工研究院、南开大学、北京农业大学和云南、天津农科院、广东农业局等单位的教授、专家参加指导,共四十四人。 会议交流了杂草防除,特别是化学除草的科技成果和经验,黑龙江省农田杂草发生较为严重,每年草害面积约有一千至一千五百万亩,影响农业增产和劳动生产率的提高,自五十年代研究化学除草以来,已先后在水稻、小麦、谷子田推广应用,获得了良好除草效果。近年来对大豆田化学除草又有了新的突破,据会议交流,各地研究和推广了除草剂氟乐灵、拉
In order to meet the needs of the development of agricultural modernization, the Crop Protection Society of Heilongjiang Province held a weed control scientific and technical personnel participating in the weed control seminar in Harbin from September 6 to September 11, 1979, and invited Shenyang, South China Agricultural College, Shenyang Institute of Chemical Industry, Nankai University, Beijing Agricultural University and Yunnan, Tianjin Academy of Agricultural Sciences, Guangdong Bureau of Agriculture and other units of professors and experts to participate in the guide, a total of 44 people. The meeting exchanged the scientific and technological achievements and experiences of weed control, especially chemical weed control. The incidence of weeds in farmland in Heilongjiang Province was relatively serious with an annual area of about 1 to 15 million mu of grassland damage, which affected the increase of agricultural output and the increase of labor productivity Since the research of chemical weeding in the 1950s, it has been popularized and applied in rice, wheat and millet field, and good herbicidal effect has been obtained. In recent years, there has been a new breakthrough in chemical weeding in soybean fields. According to the conference exchange, we have studied and popularized the herbicide trifluralin