Use of Pulsed Arc Discharge Exposure to Impede Expansion of the Invasive Vine Pueraria montana
Use of Pulsed Arc Discharge Exposure to Impede Expansion of the Invasive Vine Pueraria montana
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DOI：
10.3390/agriculture10120600
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发表时间：
2020-12-01
影响因子：
3.6
通讯作者：
Toyoda, Hideyoshi
中科院分区：
文献类型：
--
作者：
Matsuda, Yoshinori;Takikawa, Yoshihiro;Toyoda, Hideyoshi
入侵的葛藤野葛属植物。龙虾是一种扰乱农作物田间种植的农业公害。我们开发了一种简单的静电方法来抑制葛藤的入侵生长，作为除草剂用于杂草控制的替代方法。将藤尖暴露在高压弧光放电下是研究的重点。为了实现这一点，我们构造了一个梯形装置，在绝缘框架中以特定的间隔排列几根平行的铜棒。顶棒连接到直流电压发生器，并在-10千伏脉冲充电，其余棒连接到接地线。由于接地藤体的导电性质，沿着接地棒攀爬的藤条在其顶端进入带电棒周围产生的电场时，受到带电棒的脉冲弧光放电。暴露在排放物中的葡萄藤部分被加热，这促进了体内水分的蒸发。这破坏了顶端生长点，阻止了藤条的伸长。开发了一种简化的除草装置，它可以用廉价的现成材料制造成实用。
The invasive kudzu vine Pueraria montana var. lobata is an agricultural nuisance that disturbs the field cultivation of crop plants. We developed a simple electrostatic method of suppressing the invasive growth of kudzu vines as an alternative to the use of herbicides for weed control. Exposure of the vine apex to a high-voltage arc discharge was the focal point of the study. To achieve this, we constructed a ladder-shaped apparatus by arranging several parallel copper rods at specific intervals in an insulating frame. The top rod was linked to a direct current voltage generator and pulse-charged at -10 kV, and the remaining rods were linked to a grounded line. Because of the conductive nature of the grounded vine body, the vine climbing along the grounded rods was subjected to a pulsed arc discharge from the charged rod when its apex entered the electric field produced around the charged rod. The part of the vine exposed to the discharge was heated, which promoted vaporisation of body water. This destroyed the tip growing point and prevented vine elongation. A simplified weed control apparatus was developed, which can be fabricated for practical use from inexpensive, ready-made materials.