火焰除草:燃烧器角度对除草控制和温度模式的影响

IF 1.7 4区 农林科学 Q2 AGRONOMY Acta Agriculturae Scandinavica Section B-Soil and Plant Science Pub Date : 1998-12-01 DOI:10.1080/09064719809362505
J. Ascard
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引用次数: 17

摘要

在田间试验中,研究了火焰燃烧器角度对小杂草的控制效果。一个开式燃烧器以5个角度指向地面:45°和67°分别指向前方和后方,90°垂直向下。67°后向燃烧器减除杂草效果最好,但不同角度的减除效果无显著差异。生长点受保护的杂草耐火,生长点外露的杂草耐火。火焰的温度是在实验室轨道上离地面1厘米的地方测量的,与现场使用的燃烧器角度和速度相同。分析了温度-时间曲线的最高温度,以及在一定温度以上的时间和温度总和。不同燃烧器角度的温度有显著差异,但实验室得到的不同热参数之间没有显著关系。
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Flame weeding: Effects of burner angle on weed control and temperature patterns
The effects of flame burner angle on control of small weeds were studied in the field. An open burner was directed at five angles towards the ground: 45 and 67° aimed forwards and backwards, and 90° straight down. A burner angle of 67° directed backwards gave the highest weed reduction, but there were no significant differences between the effects of the different burner angles. Weed species with protected growing points were tolerant to flames, whereas species with sensitive leaves and exposed growing points were susceptible. Temperatures in the flame were measured 1 cm above the ground in a rail track in the laboratory with the same burner angles and speed that were used in the field. The temperature‐time curves were analysed for maximum temperatures as well as the period of time and temperature sum above certain temperatures. There were significant differences in temperature between different burner angles but no significant relationships between the different thermal parameters obtained in the laborat...
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来源期刊
CiteScore
4.40
自引率
0.00%
发文量
56
审稿时长
2.3 months
期刊介绍: Acta Agriculturæ Scandinavica Section B publishes original research in applied soil and plant science with special attention given to to crop production in agri- and horticultural systems. We welcome manuscripts dealing with: Climate smart and sustainable crop production systems Water and nutrient efficiency Soil conservation and productivity Precise agriculture systems Applications of bio- and nanotechnology Digitalisation and robotics Soil-plant interactions Acta Agriculturæ Scandinavica, Section B – Soil & Plant Science forms part of a series of titles published on behalf of the Nordic Association of Agricultural Science (NJF). The series also includes Section A - Animal Science .
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