Poor soil chemical fertility and climate change restrict pearl millet grain yield in Niger Republic. Apart from the seedball technology, which targets majorly early phosphorus supply to the plants, the recommended practices of mineral fertilization and seed treatments (coating and priming) are barely affordable to the local farmers in particular. In the case of female farmers, who usually have chemically infertile farmlands often located far away from their homestead, low pearl millet grain yield can be exacerbated. In quest for a cheap, affordable, and effective solution, we hypothesized that the application of sanitized human urine (Oga), in combination with organic manure (OM) or solely, increases pearl millet panicle yield in women’s fields and on different local soils. In on-farm large-N trials (N = 681) with women farmers in two regions of Niger (Maradi, Tillabery), pearl millet panicle yields were compared between the control (farmer practice), and a combination of Oga and OM in the first and second year, and Oga alone in the third year. Our results showed an average panicle yield increase of about +30%, representing +200 to +300 kg ha⁻¹. Major factors determining the yield effect are season, village, and local soil type. This study shows for the first time that Oga innovation can be used to increase pearl millet panicle yield particularly in the low fertile soils of women’s farmlands in Niger. Oga innovation is affordable, locally available, and does not pose a risk to resource-poor female farmers of Niger.

土壤化学肥力差和气候变化限制了尼日尔共和国珍珠粟的粮食产量。除了主要针对植物早期磷供应的种球技术外，推荐的矿物施肥和种子处理（涂层和底漆）方法对当地农民来说尤其难以负担。在女性农民的情况下，她们通常拥有远离家园的化学不育农田，低珍珠粟谷物产量可能会加剧。为了寻求一种廉价、负担得起且有效的解决方案，我们假设将消毒人尿 (Oga) 与有机肥料 (OM) 结合使用或单独使用，可以提高女性田地和不同当地土壤上的珍珠粟产量。在农场大型-N试验中（N = 681) 与尼日尔两个地区（马拉迪、蒂拉伯里）的女农民，在第一年和第二年比较了对照（农民实践）和 Oga 和 OM 组合以及单独的 Oga 之间的珍珠粟产量第三年。我们的结果显示平均穗产量增加约+30%，代表+200至+300 kg ha ^-1。决定产量效应的主要因素是季节、村庄和当地土壤类型。这项研究首次表明，Oga 创新可用于提高珍珠粟的产量，尤其是在尼日尔妇女农田的低肥沃土壤中。Oga 创新是负担得起的，在当地可用，并且不会对尼日尔资源贫乏的女性农民构成风险。