陇黄2号是由甘肃省农业科学院旱地农业研究所和农业生物技术国家重点实验室(香港中文大学)于2008年从山西省农业科学院经济作物研究所引进的以晋豆23为母本、鲁豆4号为父本常规杂交的F3代群体中，采用系谱法选育而成的大豆新品种。2013 — 2014年参加甘肃省大豆品种(系)区域试验，2 a 10点(次)平均折合产量为2 572.28 kg/hm2，比对照品种陇豆2号平均增产9.17%。2015 年参加甘肃省大豆品种(系)生产试验，平均折合产量2 501.70 kg/hm2，比对照品种陇豆2号增产6.09%。陇黄2号田间表现高抗花叶病毒病和大豆黑斑病。籽粒含粗蛋白(干基)385.3 g/kg、粗脂肪(干基)204.2 g/kg，品质优良。陇黄2号适用于机械化作业的间套作带状复合种植。该品种适宜在甘肃省河西灌区、中部沿黄灌区、陇东旱塬区及生态条件相近地区种植。

Longhuang 2 is a new soybean cultivar， bred by Institute of Dryland Agriculture， Gansu Academy of Agricultural Sciences， and School of Life Sciences， Chinese University of Hong Kong， by using pedigree breeding from F3 generation of combination of Ludou 4 as the male parent and Jindou 23 as female parent which was introduce from Institute of Economic Crops， Shanxi Academy of Agricultural Sciences. In 2013 — 2014， the average yield of Longhuang 2 was 2 572.28 kg/hm2， 9.17% higher than the control Longdou 2 in the Gansu Provincial Soybean Regional Test. In 2015， the average yield was 2 501.70 kg/hm2， 6.09% higher than the control Longdou 2 in the Gansu Soybean Production Test. Longhuang 2 showed high resistance to mosaic virus and soybean black spot in the field. The crude protein(dry basis) of grain is 385.3 g/kg， crude fat(dry basis) is 204.2 g/kg， confirming good quality. Longhuang 2 is suitable for mechanized intercropping. It is suitable to be grown in Hexi Irrigation Area of Gansu Province， central Yellow River Irrigation Area， Loess Plateau of east Gansu and similar ecological regions.

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国家大豆产业技术体系兰州综合试验站(CARS-04-CES17)；甘肃省特色作物产业技术体系项目；甘肃省农业科学院科技支撑计划(2017GAAS47)。