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Impact of field headlands on wheat and barley performance in a cool Atlantic climate as assessed in 40 Irish tillage fields
Irish Journal of Agricultural and Food Research ( IF 1.5 ) Pub Date : 2020-11-30 , DOI: 10.15212/ijafr-2020-0113
M. Ward 1, 2 , P.D. Forristal 2 , K. McDonnell 1
Affiliation  

The reduction in cereal crop yields on field headlands has previously been examined in other geographical regions, with research focusing on the relationship between yield and the distance from the crop edge. Headlands are subject to greater machinery trafficking than the centre of the field and the level of traffic imposed depends on the machine size and adopted turning practice. The aim of this work was to examine the impact of turning headlands on crop performance in a survey of 40 field sites in Irish conditions. The headland was categorised into three distinct zones: the area next to the field edge subject to moderate traffic intensities (field edge); the main headland area of greatest turning traffic (turning) and a transition zone (transition). An in-field zone (in-field) in which no machinery turns occur was also included. The 2-year survey included sites from three regions, four soil texture classes and had crops established with plough-based systems. Crop measurements, including plant densities, shoot counts and light interception, and yields were recorded at each site and included winter barley (WB), spring barley (SB) and winter wheat (WW) crops. The yield response of each crop type varied with sample zone, region and soil texture. There were significant (P < 0.001) yield differences recorded between the turning area and in-field zone for all three crops. Winter barley yields were reduced by 1.3 t/ha in the turning zone compared with the in-field section, while SB and WW had yield reductions of 2.08 and 4.04 t/ha, respectively, between these two field zones.

中文翻译:

在 40 个爱尔兰耕地中评估的田地岬角在凉爽的大西洋气候下对小麦和大麦性能的影响

先前已在其他地理区域研究过田间地头谷类作物产量的减少,研究重点是产量与作物边缘距离之间的关系。岬角比场地中心更容易受到机械运输的影响,所施加的运输水平取决于机器尺寸和采用的转弯实践。这项工作的目的是在爱尔兰条件下对 40 个田间地点进行调查,以检查转向岬角对作物性能的影响。岬角被分为三个不同的区域:靠近场地边缘的区域受到中等交通强度的影响(场地边缘);最大转弯交通(turning)和过渡区(transition)的主要岬角区域。还包括不发生机械转弯的场内区域(场内)。为期 2 年的调查包括来自三个地区、四个土壤质地等级的地点,并使用基于犁的系统建立了作物。在每个地点记录作物测量,包括植物密度、芽计数和光拦截,以及产量,包括冬大麦 (WB)、春大麦 (SB) 和冬小麦 (WW) 作物。每种作物类型的产量响应因样本区、地区和土壤质地而异。所有三种作物的转向区和田间区之间记录的产量差异显着(P < 0.001)。与田间部分相比,转向区的冬大麦产量减少了 1.3 吨/公顷,而在这两个田间地带,SB 和 WW 的产量分别减少了 2.08 和 4.04 吨/公顷。四个土壤质地类别,并使用基于犁的系统建立作物。在每个地点记录作物测量,包括植物密度、芽计数和光拦截,以及产量,包括冬大麦 (WB)、春大麦 (SB) 和冬小麦 (WW) 作物。每种作物类型的产量响应因样本区、地区和土壤质地而异。所有三种作物的转向区和田间区之间记录的产量差异显着(P < 0.001)。与田间部分相比,转向区的冬大麦产量减少了 1.3 吨/公顷,而在这两个田间地带,SB 和 WW 的产量分别减少了 2.08 和 4.04 吨/公顷。四个土壤质地类别,并使用基于犁的系统建立作物。在每个地点记录作物测量,包括植物密度、芽计数和光拦截,以及产量,包括冬大麦 (WB)、春大麦 (SB) 和冬小麦 (WW) 作物。每种作物类型的产量响应因样本区、地区和土壤质地而异。所有三种作物的转向区和田间区之间记录的产量差异显着(P < 0.001)。与田间部分相比,转向区的冬大麦产量减少了 1.3 吨/公顷,而在这两个田间地带,SB 和 WW 的产量分别减少了 2.08 和 4.04 吨/公顷。记录了每个地点的产量,包括冬大麦 (WB)、春大麦 (SB) 和冬小麦 (WW) 作物。每种作物类型的产量响应因样本区、地区和土壤质地而异。所有三种作物的转向区和田间区之间记录的产量差异显着(P < 0.001)。与田间部分相比,转向区的冬大麦产量减少了 1.3 吨/公顷,而在这两个田间地带,SB 和 WW 的产量分别减少了 2.08 和 4.04 吨/公顷。记录了每个地点的产量,包括冬大麦 (WB)、春大麦 (SB) 和冬小麦 (WW) 作物。每种作物类型的产量响应因样本区、地区和土壤质地而异。所有三种作物的转向区和田间区之间记录的产量差异显着(P < 0.001)。与田间部分相比,转向区的冬大麦产量减少了 1.3 吨/公顷,而在这两个田间地带,SB 和 WW 的产量分别减少了 2.08 和 4.04 吨/公顷。
更新日期:2020-11-30
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