In the quest for knowledge to address these challenges, a research team led by Associate Professor Wushuang Zhang, alongside colleagues from esteemed institutions, including Southwest University and the Chinese Academy of Agricultural Sciences, embarked on a comprehensive review of green technology advancements influences on major food crops over a significant period from 2000 to 2022. The inquiry placed focus on a crucial query: how can China harmonize the seemingly contradictory objectives of high agricultural yield and high resource efficiency given the ever-tightening constraints on resources? Their findings, officially documented in the peer-reviewed journal “Frontiers of Agricultural Science and Engineering,” introduce critical insights into the evolving landscape of agricultural practices.

Over the two-decade timeline under discussion, the transformation of China’s food production systems has been nothing short of remarkable. The total output from the three staple crops—rice, wheat, and corn—witnessed a dramatic rise of 58% since 2000, with corn yields astonishingly skyrocketing by an impressive 162%. This remarkable surge in production is underscored by minimal expansion in arable land, which increased by only 8.6%, highlighting that the driving force behind this agricultural renaissance stems primarily from enhancements in yield per unit area. The specific metrics are equally notable, with wheat yield per unit area soaring by 56.7%, corn yielding an increase of 40%, and rice experiencing a more modest rise of 12.9%.

Equipped with extensive data, the researchers are excited to underline not only the yield improvements but also the advanced efficiency in resource utilization. The usage of fertilizers, a crucial aspect of modern agriculture, peaked in 2016 and subsequently witnessed a decline totaling 0.83 million tons by 2022. The reductions included a noteworthy 9.4% decrease in nitrogen fertilizer applications, with nitrogen utilization efficiency experiencing a marked improvement—from an initial rate of 27.5% in 2000 to an impressive 41.3% in 2022. This trajectory illustrates a paradigm of progressive agricultural innovation whereby more food is generated with less requisite fertilizer, thereby relieving some environmental pressures.

The successes seen thus far are attributed to several groundbreaking technological advancements. Take, for instance, the “Integrated Soil-Crop System Management (ISSM)” methodology, a hallmark of modern agronomy partnering with sustainability goals. This pioneering technology tailors the selection of crop varieties, optimizes sowing times, and improves planting densities, all aimed at maximizing both light energy utilization and nutrient supply efficiencies. Remarkably, field application of this technology within North China resulted in a staggering 91.2% increase in corn yields, while simultaneously mitigating nitrogen losses and greenhouse gas emissions by 30% and 11%, respectively.

The impact of tailored approaches like the “Root Zone Nutrient Regulation Technology” should also be underscored. This innovative strategy transcends traditional applications by aligning nitrogen supplies with crop needs at varying growth stages, yielding an 8% increase in corn production alongside a 25% reduction in nitrogen fertilizer application. Another technology, “Rhizosphere Nutrient Regulation Technology,” tackles fertilizer application’s localized impacts within the root zone, achieving a remarkable 20.2% rise in rice yields, complemented by a 20-30% decrease in nitrogen fertilizer usage—a clear testament to the integration of scientific research and practical application.

Despite these advancements, challenges loom large on the horizon. With the anticipated growth of the population paired with the expanding demand for animal husbandry, projections indicate a staggering increase in food demand, chiefly corn, with total projections suggesting a 30% rise by the year 2050. Concurrently, issues related to the surplus of nitrogen and phosphorus in farmlands remain concerning, compounded by a low utilization rate for organic resources that continue to hold vast untapped potential within China’s agricultural landscape.

To combat these prevalent challenges, the research team advocates for a quartet of strategies designed to harness the immense capabilities of innovative technology in agriculture. These strategies include a robust focus on the precision management of organic resources, the promotion of enhanced-efficiency fertilizers, the integration and adoption of rhizosphere nutrient regulation technologies, and the exploration of cutting-edge technologies like intelligent nutrient management. Collectively, these strategies harness a multi-faceted approach to empower agricultural efficacy while minimizing ecological footprints.

The researchers are optimistic that fully implementing the principles of Integrated Soil-Crop System Management could catalyze significant improvements in output volumes by 2050, suggesting a potential increase in total rice, wheat, and corn outputs of 45.8 million tons, 115 million tons, and 360 million tons, respectively. This optimistic forecast not only promises bolstered food security for China’s population but also a pronounced reduction in environmental ramifications associated with past agricultural practices.

Thus, the groundbreaking work carried out by Zhang and his colleagues signals a pivotal moment in the evolution of agricultural practices within China, merging innovative technologies with sustainability-based strategies. Their comprehensive exploration of the intersection between yield efficiency and environmental stewardship paves a path forward, fostering hope within the scientific community and the agricultural industry. Through focused endeavors, the prospect of achieving a productive balance between meeting the nutritional demands of millions while safeguarding the planet’s ecological health remains tantalizingly within reach.

Subject of Research: Innovations in green technology for increasing major grain crop production and efficiency in China
Article Title: Innovations in green technology for increasing major grain crop production and efficiency in China
News Publication Date: 16-Jul-2025
Web References: https://journal.hep.com.cn/fase/EN/10.15302/J-FASE-2025633
References: DOI: 10.15302/J-FASE-2025633
Image Credits: Credit: Fulin ZHAO1, Xingbang WANG1, Wushuai ZHANG1, Peng HOU2, Qingfeng MENG3, Zhenling CUI4,5, Xinping CHEN1,4

Keywords

Agriculture, Food Security, Sustainable Practices, Green Technology, Resource Efficiency.

Confronting these environmental externalities without compromising food production is a pivotal challenge confronting agricultural scientists and policymakers alike. It is within this context that a team led by Professor Wenfeng Cong at China Agricultural University has pioneered a transformative approach termed “green technology.” This methodology has been rigorously validated over thousands of field trials nationwide, a scale and breadth rarely matched in agricultural science. Their approach not only illuminates pathways toward reconciling high-yield agriculture with ecological stewardship but also reframes the agricultural research paradigm itself by advancing a novel conceptual framework dubbed the “12345” model.

The “12345” model reimagines agricultural innovation as fundamentally anchored in real-world production demands. It emphasizes solving the inherent contradictions prevalent in modern farming—between maximizing grain yield and ensuring environmental protection, and between fostering economic development alongside ecological preservation. This paradigm mandates cross-disciplinary collaboration and active involvement from multiple stakeholders, from farmers to scientists, enabling tailored, practical solutions that synthesize agronomic, environmental, and socioeconomic factors.

At its core, the green technology approach optimizes the intricate “soil-crop-microbe” system to harness synergies that drive enhanced productivity, nutrient efficiency, and minimized pollution. The strategy is tripartite. Firstly, it involves constructing high-density crop populations through breeding dense-tolerant varieties and manipulating planting densities or deploying intercropping systems. Intercropping, such as the cultivation of corn alongside fava beans, effectively maximizes light interception and heat utilization, boosting photosynthetic efficiency and resource capture.

Secondly, green technology prioritizes precise rhizosphere regulation to fine-tune nutrient uptake dynamically. This is accomplished via “smart” fertilizers that synchronize nutrient release with crop developmental stages and leverage ammonium nitrogen forms to stimulate root architectural changes favorable for phosphorus acquisition. Such precision fertilization enhances nutrient use efficiency, directly contributing to lower fertilizer requirements without sacrificing yield.

Thirdly, the approach fosters the cultivation of healthy soils through integrated management practices. These include the combined application of organic amendments alongside chemical fertilizers and the adoption of conservation tillage or no-till systems. The dual focus is on improving soil structure and bolstering microbial diversity—a foundational factor in sustaining nutrient cycling and soil resilience.

The empirical validation of these principles is grounded in an unprecedented dataset from 12,403 field trials spanning fifteen years (2005–2020) driven by a nationwide collaborative framework. The outcomes are robust and compelling. Relative to conventional management, green technology elevates grain production by a remarkable 21% to 87%, achieved without corresponding increases in nitrogen fertilizer inputs. More impressively, Nitrogen Use Efficiency (NUE) improves by 24% to 32%, signaling marked reductions in nutrient wastage. Concurrently, nitrogen losses and greenhouse gas emission intensities decline by 50% to 56% and 31% to 47%, respectively, underscoring significant environmental benefits.

By 2015, this innovative technology had been embraced by roughly 20.9 million farming households across 452 counties in China, covering an agricultural expanse of 40 million hectares. Such large-scale adoption not only marks a turning point for Chinese agriculture but also presents a scalable model of sustainable intensification that other nations could emulate. Amid global uncertainties in fossil fuel markets, rising fertilizer costs, and escalating climate change impacts, strategies that prioritize “less input, more output, and low pollution” are more crucial than ever.

China’s experience underscores the feasibility of this triple-win paradigm. Should green technology be widely implemented, it holds the potential to dramatically mitigate the environmental footprint of Chinese agriculture—substantially lowering global resource consumption, nutrient runoff, and greenhouse gas emissions linked with crop production. The approach aligns synergistically with multiple United Nations Sustainable Development Goals, including hunger eradication, clean water, climate action, and sustainable land use.

More than a technical intervention, the green technology framework embodies a shift toward holistic, systems-based thinking in agronomy. It moves beyond isolated innovations, promoting integrated management that leverages advancements in plant breeding, nutrient management, soil science, and microbial ecology. Such interdisciplinarity, coupled with concerted stakeholder participation, exemplifies how science can meaningfully address the complex socio-ecological challenges facing modern agriculture.

For farmers on the ground, green technology translates into tangible benefits: increased yields, higher profitability through better input efficiency, and improved environmental conditions that sustain productivity long term. For policymakers and researchers worldwide, it provides a valuable blueprint for balancing productivity with sustainability in diverse agro-ecological contexts.

In summary, the green technology initiative led by China Agricultural University is not only a breakthrough in agricultural science but a beacon for global food systems transformation. It showcases how combining scientific rigor, innovation, and inclusive collaboration can design agricultural models that meet today’s pressing needs without compromising the planet’s future. As the global community grapples with the intertwined crises of food insecurity and environmental degradation, the lessons from China’s green technology and the “12345” model offer both hope and a practical roadmap toward resilient, sustainable agriculture.

Subject of Research: Not applicable

Article Title: Green technology for increasing grain crop production and efficiency: innovation and application in China

News Publication Date: 16-Jul-2025

Web References: http://dx.doi.org/10.15302/J-FASE-2025630

Image Credits: Wen-Feng CONG, Hao YING, Feiyu YING, Zhichao AN, Jianbo SHEN, Fusuo ZHANG

Keywords: Agriculture