High-low seedbed cultivation drives the efficient utilization of key production resources and the improvement of wheat productivity in the North China Plain

• DOI: 10.1016/j.agwat.2023.108357
• Publication Date: 2023-05-16T11:09:46Z
• Authors: Junming Liu; Zhuanyun Si; Lifeng Wu; Xiaojun Shen; Yang Gao; Aiwang Duan
• Keywords: Seedbed; Tiller (botany); Photosynthetically active radiation

High-low seedbed cultivation (HLSC) is a key technique now used by smallholder and large farmers to increase the land utilization rate of wheat production in North China Plain (NCP). However, little information available on its superiority crop productivity, resource efficiency, net return comparison with flat (FC). A field experiment was conducted NCP 2020–2021 2021–2022 seasons determine whether HLSC would evapotranspiration (ET), intercepted photosynthetically active radiation (IPAR), nitrogen uptake use efficiency. Two treatments were established, i.e., FC HLSC, respectively. The results showed that significantly increased tiller development, leaf area index (LAI), aboveground biomass compared FC. Although did not ET relative (P > 0.05), it IPAR 5.5–6.6 % grain 12.1–12.6 < 0.05). Pearson correlation analysis indicated yield regulated capture wheat. Therefore, 14.5–18.3 45.4–59.3 enhanced efficient resources 13.2–15.6 water, 8.5–11.1 radiation, promising planting system for improving productivity