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Band sowing with hoeing in organic grains: II. Evidence of improved weed management in spring wheat, oats, field peas, and flax
Weed Science ( IF 2.1 ) Pub Date : 2020-02-20 , DOI: 10.1017/wsc.2020.18
Margaret R. McCollough , Eric R. Gallandt , Thomas Molloy

The long-term success of weed management programs requires that all crops in a rotation receive satisfactory weed control. Band sowing with inter-band hoeing has been proposed as an innovative weed management strategy for grain crops. In the band-sowing system, crops are sown in a broadcast pattern within a band of some chosen width (here we selected 12.7 cm); weeds between bands are controlled with inter-band hoeing, with or without so-called “blind cultivation,” for example, tine harrowing. Alteration of the crop spatial arrangement from typical single-line rows to a more evenly distributed pattern aims to enhance interspecific competition while reducing intraspecific competition. Field experiments, conducted in Maine in 2016 and 2017, compared band sowing with inter-band hoeing to the region’s standard practice of planting in 16.5-cm rows and tine harrowing in four test crops: spring wheat (Triticum aestivum L. ‘Glenn’), oat (Avena sativa L. ‘Colt’), field pea (Pisum sativum L. ‘Jetset’), and flax (Linum usitatissimum L. ‘Prairie Thunder’). Band sowing improved weed control relative to the standard practice, especially in crops with greater competitive ability (wheat and oat). Despite improved weed control, in most cases, yields were unaffected by treatment. While band sowing with hoeing provided improved weed control in multiple crops, further study is warranted to optimize seeding rate, band width, and inter-band width to improve crop yields.

中文翻译:

有机谷物锄带播种:II.春小麦、燕麦、豌豆和亚麻中杂草管理得到改善的证据

杂草管理计划的长期成功要求轮作中的所有作物都得到令人满意的杂草控制。带间锄带播种已被提议作为一种创新的粮食作物杂草管理策略。在带播系统中,作物在选定宽度的带内(这里我们选择 12.7 厘米)以广播模式播种;带间杂草通过带间锄来控制,有或没有所谓的“盲耕”,例如耙齿。将作物空间排列从典型的单行排列变为更均匀分布的模式旨在增强种间竞争,同时减少种内竞争。2016 年和 2017 年在缅因州进行的田间试验将带播和带间锄头与该地区 16 年种植的标准做法进行了比较。小麦L.“格伦”),燕麦(燕麦L. 'Colt'), 豌豆 (豌豆L. 'Jetset')和亚麻(亚麻L.“草原雷霆”)。相对于标准做法,带播改善了杂草控制,特别是在具有更强竞争能力的作物(小麦和燕麦)中。尽管杂草控制得到了改善,但在大多数情况下,产量不受处理的影响。虽然带锄头的带播可以改善多种作物的杂草控制,但需要进一步研究优化播种率、带宽和带间宽度以提高作物产量。
更新日期:2020-02-20
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