A new study led by researchers at China Agricultural University highlights the potential to significantly increase grain output on the North China Plain while reducing environmental impacts. The study outlines pathways to achieve an annual yield of 22.5 t/ha from the region’s dominant winter wheat–summer maize rotation system.

The NCP produces nearly three-quarters of China’s wheat and one-third of its maize. Despite this, current yields remain only 53%–66% of the genetic potential. Addressing soil quality, resource use efficiency, climate extremes, and socioeconomic constraints will be essential to closing this gap, according to the study.

Researchers propose integrated soil–crop system management as a central pathway. Precision nutrient and irrigation practices, improved land and soil management, and the use of superior crop genotypes were all identified as key strategies to increase yields while conserving resources. Data show that integrated approaches can lift yields by 18%–35% while reducing nitrogen use and greenhouse gas emissions.

Soil health plays a particularly important role. Long-term practices such as deep tillage, straw return, organic fertilizer application, and conservation tillage were found to increase soil organic matter, improve water retention, and enhance resilience against climate stress. At the same time, modern irrigation technologies—such as micro- and drip-irrigation—are seen as critical to reducing the region’s heavy reliance on groundwater.

The paper also stresses the role of digital tools and precision agriculture. Remote sensing, soil sensors, and GPS-guided equipment allow farmers to fine-tune planting, fertilization, and irrigation, helping balance higher yields with environmental stewardship.

Finally, the study points to the importance of socioeconomic support. Models such as Science and Technology Backyards (STBs), which embed researchers directly in farming communities, have shown success in raising yields and nitrogen-use efficiency. Expanding such multistakeholder collaborations, along with building farmer cooperatives and socialized services, will be necessary to scale up sustainable practices across the region.

Overall, the researchers conclude that sustainable crop production in the NCP requires an interdisciplinary effort linking agronomy, soil science, climate adaptation, technology, and rural development. By pursuing these integrated pathways, China can move closer to meeting rising food demand while protecting its environment.

This article was sourced from Pathways for sustainable production to approach the potential yield of winter wheat and summer maize on the North China Plain, authored by Peng Ning, Xiaojie Feng, Zhanhong Hao, and others, and published in Frontiers of Agricultural Science and Learning.