Legume hyperspectral and in-situ biophysical/biochemical dataset collected in the Southern Plains

A field experiment focused on three legumes (soybeans [Glycine max], mothbeans [Vigna aconitifolia], and tepary bean [Phaseolus acutifolius]) was conducted in El Reno, OK over a two year period (2018, 2019). The split-split plot design for the legumes were subject to various row spacing (38cm and 76cm) and irrigation regimes (irrigated and rainfed). Sampling of the plots took place a total of seven times over the two year period. Each of the samplings included an initial triplicate (averaged) hyperspectral readings using a spectroradiometer (350nm to 2500nm; FieldSpec Pro FR: Malvern Panalytical, Westborough, MA, USA), in-situ measurements (canopy cover [collected with the “Canopeo” app where a ratio of plant to ground pixels were calculated], chlorophyll content [collected with Chlorophyll Content Meter-300, Opti-Sciences, Hudson, NH, USA]), and biomass clipping for various laboratory analytics (dry weight, nitrogen/carbon content, crude protein, neutral detergent fiber, acid detergent fiber, in vitro true digestibility). Locations for sampling (n=334) within the 4m x 3m plots were chosen at random.

一项针对三种豆类作物（大豆（Glycine max）、蛾豆（Vigna aconitifolia）和鹰嘴豆（Phaseolus acutifolius）的田间试验在俄克拉荷马州埃尔雷诺进行了两年（2018年至2019年）。豆类作物的分分析析设计受到不同行距（38厘米和76厘米）和灌溉制度（灌溉和雨养）的影响。在整个两年期间，共进行了七次样地采样。每次采样均包括使用光谱仪（350nm至2500nm；FieldSpec Pro FR：Malvern Panalytical，韦斯特罗布瑞，马萨诸塞州，美国）进行的初始三次重复（平均）高光谱读数，现场测量（叶面积盖度[使用“Canopeo”应用程序收集，其中计算了植物与地面像素的比例]，叶绿素含量[使用叶绿素含量计-300，Opti-Sciences，哈德逊，新罕布什尔州，美国]），以及为各种实验室分析（干重、氮碳含量、粗蛋白、中性洗涤纤维、酸性洗涤纤维、体外真消化率）的生物量剪取。在4米x3米的样地内，随机选择了334个采样点。