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首页> 外文会议>Annual International Conference on Material Science and Environmental Engineering >Investigation on Weeds in Vegetable Fields in the Northern Suburbs of Meizhou City, South China
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Investigation on Weeds in Vegetable Fields in the Northern Suburbs of Meizhou City, South China

机译：南方梅州市北郊南郊杂草探析

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There were a total of 81 weed species in the northern suburbs of Meizhou, belonging to 34 families and 71 genera, and most of them were dicotyledons. Asteraceae and Gramineae were the dominant families. The genera were mainly distributed in the tropical zone, accounting for 71.83% of the total species, with a strong tropical. The short-lived weeds in the first and second year accounts for 53.09% of the total species, and there were more annual weeds. From the light intensity adaptability point of view, these vegetable weeds were dominated by light-demanding and shade-tolerant plants. From the standpoint of water adaptability, most of them were mesophytes. Weeds with a high degree of damage to vegetable crops were usually herbs, meeting the R countermeasures, having strong ecological adaptability, strong reproduction ability, and high competitiveness, and can spread rapidly in the wild. In addition, a total of 19 alien invasive species were found in this weed community, with the largest number in the Asteraceae family and most originating from tropical America. Among them, Alternanthera philoxeroides.Wedelia trilobata, etc. can form a single superior community, causing great harm. These weeds have strong resistance to herbicides, insecticides, domestic sewage, etc., so how to control them is still a difficult problem.
机译：梅州北部郊区共有81种杂草物种，属于34个家庭和71个属，其中大部分是二榫龙。 Asteraceae和Gramineae是主要的家庭。本身主要分布在热带区，占总物种的71.83％，热带强烈。第一年和第二年的短暂杂草占总物种的53.09％，并且有更多的年度杂草。从光强度适应性的角度来看，这些植物杂草是由轻苛和耐湿的植物主导。从水适应性的角度来看，它们中的大多数是患蛋白酶体。杂草对蔬菜作物的高度损害通常是草本植物，符合R的反应，具有强大的生态适应性，强大的繁殖能力和高竞争力，并且可以在野外迅速传播。此外，在这个杂草群落中发现了19种外来的侵入物种，其中奥尔西西家族中最多，最多来自热带美国。其中，交替的anterandanthera philoxeroides.wedelia trilobata等可以形成一个卓越的社区，造成巨大的伤害。这些杂草对除草剂，杀虫剂，家庭污水等具有很强的抵抗力，因此如何控制它们仍然是一个难题。

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