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Machine vision guided cultivation in lettuce and celery.

机译：机器视觉引导着莴苣和芹菜的栽培。

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摘要

Integrated weed management in lettuce requires the use of cultural weed control, hand weeding, cultivation, and herbicides for the economical control of weeds. If more weeds can be removed with an efficient cultivation, then there will be fewer weeds for hand weeding crews to remove. Machine vision guided cultivation can improve the efficiency of cultivation and reduce the use of expensive hand weeding. In 2007 and 2008 four trials were conducted on romaine lettuce and two trials were conducted on celery to test if the machine vision guided cultivator tools or directed herbicide applications could be used to improve hand weeding efficiency. In the lettuce trials three different cultivation tools and two directed post-emergent herbicide treatments were tested, both with and without pronamide applied pre-emergent at 1.34 kg/ha. The cultivator tools included in the comparison were: sweep knives, Bezzerides (torsion weeders), and coulters with sweep knives. The post-emergent directed herbicides included pelargonic acid at 3, 6 and 9% v/v and carfentrazone applied at 37 g ai/ha in 2007 trials 1 and 2 and at 10 g ai/ha in 2008 trials 3 and 4. Data gathered were the number of marketable lettuce heads, weed densities prior to and after cultivation and herbicide applications, hand thinning and weeding times. Lettuce yields were similar among treatments, but differences were found in levels of weed control and amount of labor required. The treatments that consistently had high levels of weed control along with low labor requirements included the knives, Bezzerides, and carfentrazone. Pelargonic acid was found to provide the same level of weed control as the cultivator tools when used at the highest concentration. The pre-emergent application of pronamide was required to reduce hand thinning times. The celery trials compared the levels of weed control, hand weeding times, and yield between mechanical cultivation with sweep knives treatments and a directed herbicide application treatment of pelargonic acid at 3, 6 and 9% v/v. Data gathered were marketable yield, weed densities prior to and after cultivation and herbicide applications, and hand-weeding times. In celery, there was little difference between directed sprays of pelargonic acid and mechanical cultivation in terms of weed control, hand weeding time, or yield. This means that mechanical cultivation and directed herbicide applications have the same success rates when used with the RoboCrop(c) in celery.
机译：生菜的综合杂草管理要求使用文化杂草控制，人工除草，栽培和除草剂来经济地控制杂草。如果可以通过有效的耕种去除更多的杂草，那么用于手工除草人员的杂草将减少。机器视觉引导的耕作可以提高耕作效率，并减少使用昂贵的人工除草。在2007年和2008年，对长叶莴苣进行了四项试验，对芹菜进行了两项试验，以测试机器视觉引导的中耕机工具或定向除草剂的应用是否可用于提高手除草效率。在生菜试验中，测试了三种不同的耕作工具和两种定向的芽后除草剂处理方法，无论是否在芽前施用1.34 kg / ha的丙烯酰胺。比较中包括的耕地机工具是：sweep草刀，Bezzerides（扭转除草机）和带有sweep草刀的犁刀。芽后定向除草剂包括浓度分别为3％，6％和9％v / v的壬酸，以及在2007年试验1和2中以37 g ai / ha施用的灭草灵和在2008年试验3和4中以10 g ai / ha施用。可销售的生菜头数，栽培前后的杂草密度和除草剂施用，手间苗和除草时间。不同处理方法的生菜产量相似，但杂草控制水平和所需劳动量却存在差异。杂草控制水平高且劳动要求低的治疗方法包括刀，Bezzerides和Carfentrazone。发现以最高浓度使用时，壬酸可提供与中耕工具相同水平的除草效果。为了减少手稀疏的时间，需要在芽前使用丙烯酰胺。芹菜试验比较了在3％，6％和9％v / v的香菜酸机械耕作与定向除草剂喷施壬草酸之间的杂草控制水平，人工除草时间和产量。收集的数据包括可销售的产量，种植和除草剂施用前后的杂草密度以及人工除草时间。在芹菜中，在控制杂草，手动除草时间或产量方面，壬酸直接喷洒与机械栽培之间几乎没有差异。这意味着与RoboCrop（c）一起用于芹菜时，机械耕种和定向除草剂施用具有相同的成功率。

著录项

  • 作者

    George, Christina Ashley.;

  • 作者单位

    University of California, Davis.;

  • 授予单位 University of California, Davis.;
  • 学科 Agriculture Horticulture.;Agriculture Agronomy.
  • 学位 M.S.
  • 年度 2009
  • 页码 51 p.
  • 总页数 51
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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