LINHE
Climate
Science & Technology
In the context of the dual carbon policy promoting the green transformation of agriculture, facility agriculture has become a core area of agricultural modernization in China. During the 14th Five-Year Plan period, the scale of facility agriculture has exceeded 40 million acres, accounting for 80% of the global total area of facility agriculture, demonstrating significant industrial foundational advantages. However, facility agriculture in China has long faced the dilemma of low yield and inefficiency. Relevant data shows that the actual yield of facility crops in China is only 24% of its production potential, which is significantly lower than that of developed agricultural countries such as the Netherlands and Japan. Insufficient capacity release has become a key issue restricting the high-quality development of facility agriculture.
In 2025, the “Opinions of the Central Committee of the Communist Party of China and the State Council on Further Deepening Rural Reform and Promoting Comprehensive Rural Revitalization” clearly proposed to “lead the gathering of advanced production factors through technological innovation and develop new agricultural productivity according to local conditions.” The key to promoting the development of new agricultural productivity lies in leading with technological innovation, optimizing factor allocation, deepening institutional and mechanism reforms, and building an efficient, intelligent, green, and sustainable modern agricultural system. Among them, the research and promotion of agricultural emission reduction and carbon sequestration technologies, as well as the exploration of agricultural carbon sink project development and trading mechanisms, are important paths for the development of new productivity.
Carbon-rich agriculture is the key to unlocking yield potential
CO2 is the core raw material for plant photosynthesis, and its increased concentration directly accelerates the rate of dark reactions, thereby enhancing overall photosynthetic efficiency. Experiments have shown that when the concentration rises from 300 ppm to 1000 ppm, the yield of most crops significantly increases. IfCO2 supply is insufficient, even optimizing production conditions through conventional management methods such as fertilization and temperature control will not lead to breakthrough increases in crop yield.
This is precisely the core logic of carbon-rich agriculture: to precisely match the concentration ofCO2 in the greenhouse with the growth needs of different crops.
Different crops have significant differences in their demand for carbon dioxide: cucumbers prefer aCO2 concentration of 1500-2000 ppm, while strawberries and lettuce prefer 1000-1500 ppm… When theCO2 concentration reaches a carbon-rich state, the growth rate and fruit quality of crops can achieve a qualitative leap. By convertingCO2 into nutrients required for crop growth through technological innovation, carbon-rich agriculture is opening a win-win path for agricultural efficiency and carbon reduction.
Traditional carbon fertilizer technology has limitations
In the field of facility agriculture, the supply technology for CO2 has long faced the dual contradiction of insufficient supply and outdated supply methods. The carbon emissions from agricultural production in China account for 16%-17%. The existing market provides equipment and methods for supplying CO2 carbon fertilizer to facility agriculture greenhouses, which do not comply with the national dual carbon policy. While providing CO2 gas fertilizer, they also generate new CO2, failing to achieve the internal circulation of CO2.
These traditional technologies generally have common defects: they cannot achieve the recycling of CO2, may pose safety risks, may exacerbate carbon emissions, or may lead to high costs, making it difficult to meet the needs of large-scale and green development of facility agriculture.
How does Linhe’s fully automatic DAC carbon fertilizer machine break the deadlock?
Our developed fully automatic DAC carbon fertilizer machine relies on its own globally leading dry-wet air direct capture technology (MSDAC), combined with full-chain technological innovation, to specifically address the pain points of traditional carbon fertilizer technology, achieving a “safe, efficient, low-carbon” CO2 supply model.
Globally unique carbon capture material: achieving on-site utilization of CO2
The globally unique variable humidity carbon capture material MSCCM is the core component of Linhe’s DAC carbon fertilizer machine, capable of directly capturing CO2 from the air when dry and desorbing CO2 when wet. It can capture and purify CO2 at a concentration of 0.04% in the air by about 3-5 times, which can be directly supplied to plants as gas fertilizer. This feature allows the DAC carbon fertilizer machine to “capture carbon on-site and use carbon on-site” around the greenhouse, eliminating the need for external gas sources. It saves costs related to the transportation and storage of industrial CO2, lowering the technical application threshold.
Fully automatic precise carbon control, outputting CO2 according to crop growth needs
Different crops and different growth stages of the same crop have significant differences in their demand for CO2 concentration. Our fully automatic DAC carbon fertilizer machine is equipped with an intelligent central control system that can automatically adjust the CO2 output based on the type of crop (such as cucumber, strawberry, tomato, etc.), achieving adaptive control within a concentration range of 400-2000 ppm, providing customized CO2 supply solutions for different crops and avoiding the problem of uncontrolled CO2 concentration in traditional technologies.
Our DAC carbon fertilizer machine has been validated by experimental data from the Chinese Academy of Agricultural Sciences: after using the Linhe carbon fertilizer machine, the photosynthetic rate of crops increased by nearly 25%, the yield of tomatoes and melons increased by 30%-40%, plant disease resistance improved by 50%, total sugar content in fruits increased by 15%, and plant stem length, stem thickness, and leaf color deepened significantly, with noticeable increases in fruit size.
“Photovoltaic + DAC Carbon Fertilizer Machine + Facility Agriculture” System
Perfectly matches the “carbon neutrality” development path
Linhe Climate’s innovative solution of “photovoltaic power supply → fully automatic air direct capture (DAC) gas fertilizer machine → facility agriculture” achieves a perfect integration of distributed clean energy and carbon cycling agriculture. It shifts greenhouse planting from high-carbon production to negative carbon cycling. Photovoltaic power can directly drive the operation of the carbon fertilizer machine and absorb previously unusable abandoned solar power, increasing the system’s energy utilization efficiency by over 30%. The CO2 captured by the carbon fertilizer machine is absorbed by crops, and through photosynthesis, carbon is sequestered, forming a negative carbon closed loop of “capture-utilization-recapture,” with the overall system’s carbon emissions approaching zero.
The carbon fertilizer machine unit adopts a standard modular design, with each unit capable of operating independently. It can also be integrated and controlled by the central control system according to actual needs, achieving large-scale CO2 gas fertilizer supply. The integrated system can flexibly switch control units, enabling automatic capture and release of CO2 gas fertilizer into the greenhouse, providing continuous supply 24 hours a day.
As the dual carbon goals advance, the carbon value of carbon-rich agricultural products is gradually being transformed into market competitiveness. In the long run, Linhe Climate’s DAC carbon fertilizer machine, combined with an IoT data system, can record the carbon footprint of agricultural products throughout the process, and is expected to apply for national certified voluntary emission reduction (CCER) certification in the future. Agricultural products with low-carbon labels will have stronger competitiveness in the market environment of consumption upgrades, and can further enhance the added value of agricultural products through green premiums, helping farmers shift from increasing production to increasing income and efficiency, and promoting the industrial upgrading of agriculture.
END
“Selected Past Issues”“Green Fuel” under EU RegulationsLinhe Climate and the China Electric Power Research Institute Reach Strategic Cooperation on Carbon NeutralityCCUS Technology Expected to Achieve Large-Scale CO₂ Emission Reduction in the Steel Industry2025 Global Direct Air Capture (DAC) Commercialization Process AcceleratesChairman Wang Ruibing and His Team from State Power Investment Corporation Visit Linhe for ExchangeLinhe Climate Recognized as a “Specialized, Refined, Characteristic, and Innovative” SME in BeijingLinhe Climate Recognized as a “National High-Tech Enterprise”Energy Giants Intensify Investment in Green MethanolLinhe Climate Selected for Tencent’s “Carbon Search Program” Final Project List
LINHE
Linhe Climate Technology
E-mail:
Note: Some information in this article is referenced from publicly available online materials. If there are any inaccuracies, please contact us for correction or removal.