Abstract Recycling of livestock manure in agroecosystems has been shown to improve crop yields, increase resource use efficiency, and reduce adverse environmental consequences from intensive crop-livestock systems. However, such effects have not been well explored for the widely planted winter wheat - summer maize double cropping system in the North China Plain, especially under deficit irrigation. A three years split-plot field experiment was established with and without irrigation (at wheat jointing stage) as main plots, and with chemical fertilizer N (Fc), manure N (Fm), and 50 % chemical fertilizer N + 50 % manure N (Fc + m) using the same amount of N input as sub-plots. Irrigation increased wheat yield significantly by 8–19 % in the normal years (2015/2016 and 2016/2017, p

中文翻译：

---

华北平原冬小麦-夏玉米系统缺水条件下化肥代肥增产效益

摘要 在农业生态系统中回收牲畜粪便已被证明可以提高作物产量，提高资源利用效率，并减少集约化作物-牲畜系统对环境的不利影响。然而，对于华北平原广泛种植的冬小麦-夏玉米双熟制，尤其是在亏缺灌溉条件下，这种影响尚未得到很好的探索。以小麦拔节期为主要地块，以化肥N（Fc）、粪肥N（Fm）、50%化肥N+50%粪肥N的3年分块田试验(Fc + m) 使用相同数量的 N 输入作为子图。在正常年份，灌溉使小麦产量显着提高了 8-19%（2015/2016 和 2016/2017，p