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Evaluation of Wheat Planted on 15-Inch Row Spacing in Eastern Kansas

机译:堪萨斯州东部15英寸行距种植小麦的评估

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Producers in eastern Kansas are beginning to use planters with 15-inch row spacing to plant hard red winter wheat (Triticum aestivum L.) vs. traditional 7- to 10-inch drill equipment. The objectives of this study were to evaluate weed emergence and wheat yield effects when sowing wheat with a 15-inch row planter vs. 7.5-inch row drill equipment at a seeding rate of 1.0 and 1.2 million seeds/ acre. The experiments were duplicated each year, one with an herbicide application and one without herbicide.Henbit (Lamium amplexicaule L.), Carolina foxtail {Alopecurus carolinianus Walt.), smallflowered bittercress (Cardamine parviflora L.), and common chickweed [Stellaria media (L.) Vill.] emergence was greater in the 15-inch planter rows vs. the 7.5-inch drill rows. Wheat sown in the 15-inch planter rows in the herbicide-treated experiment yielded 17.4 bu/acre less than wheat sown with the 7.5-inch drill rows. Wheat sown with the 15-inch planter in the untreated herbicide experiment yielded 15.1 bu/acre less than wheat sown with the 7.5-inch drill. Yield losses for wheat in 15-inch planter rows in both experiments are attributed to too wide of a row spacing to maximize yields.
机译:堪萨斯州东部的生产商开始使用行距为15英寸的播种机来种植硬红冬小麦(Triticum aestivum L.),而不是传统的7到10英寸播种设备。这项研究的目的是评估当播种速率为1.0和120万种子/英亩时,使用15英寸行式播种机与7.5英寸行式播种机播种小麦时,杂草出苗和小麦产量影响。每年重复实验一次,一次使用除草剂,一次不使用除草剂。 [L.)Vill。]在15英寸的播种机行中,相对于7.5英寸的播种机行,出苗率更高。在除草剂处理过的实验中,在15英寸种植行中播种的小麦比在7.5英寸钻行中播种的小麦低17.4 bu /英亩。在未经处理的除草剂实验中,使用15英寸播种机播种的小麦比使用7.5英寸播种机播种的小麦减产15.1 bu /英亩。在两个实验中,15英寸播种机行中小麦的产量损失均归因于行距太宽而无法最大化产量。

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