In the era of rapid development of Internet technology, the future direction of agriculture has become the focus of social attention. Using information technology to change future agricultural production scenarios, let agricultural production develop in the direction of intelligence and spatial three-dimensionality, thereby promoting a new round of agricultural science and technology revolution, promoting the transformation of agricultural production methods and the efficient use of resources.
The intelligent application of graphene in agriculture is mainly reflected in the following three aspects:
Application in greenhouse.
As a new heating method, nano-graphene heating is not only used in home life, but also has a wide range of applications in agriculture and rural areas, covering vegetable greenhouses, flower cultivation, agriculture and forestry nursery, soil insulation, chick hatching, special aquaculture and other industries. Greenhouse is the most popular production method in my country’s facility agriculture, which not only greatly improves the productivity of the land, but also solves the problem of off-season production. But the biggest trouble is that most of the greenhouse heat sources use hot blast stoves, heating stoves or electric heating wires. Not only high energy consumption, large pollution, but also poor stability and high cost. The graphene electrothermal film system has a high electrothermal conversion rate, which generally saves 30-50% of energy and will not cause pollution. After the graphene electrothermal film is covered with soil, far-infrared direct warming can significantly promote the development of seedlings and effectively enhance photosynthesis.
Smart farmland system
The farmland is covered with sensors to collect surrounding environmental parameters such as air temperature and humidity, soil temperature and humidity. If the land is short of water, the system will automatically give an early warning, and the manager can water it with one button on the mobile phone, which can be operated anytime, anywhere. It is no longer a fantasy that agricultural production becomes intelligent. Therefore, the smart farmland system not only makes agricultural production management more intelligent, but also makes the utilization of farmland resources more reasonable.
The main component of the smart farmland system is the sensor. Sensor technology is used worldwide for detecting and monitoring process parameters. Graphene sensors also work in the same way, it’s just a factor of the nanomaterials used in their fabrication. Sensors are a very important application field of graphene. Graphene sensors can convert environmental parameters into electrical signals processed and measured by computers. This feature meets the management needs of smart farmland. There are many advantages when people apply graphene sensors in smart farmland. Therefore, graphene sensors are the way to open the transformation and upgrading of smart agriculture. Graphene is known as the “king of new materials” because of its excellent properties, such as superconductivity, good flexibility, good transparency, and excellent mechanical properties. It is widely used in all walks of life.
Raising seedlings and adsorbing pollutants
Based on domestic and foreign research, appropriate addition of nano graphene powder to soil is beneficial to seed germination and seedling growth, and is beneficial to improve crop yield and quality. The addition of graphene nanomaterials to fertilizers can increase the clay content of the soil and improve the soil texture, and the nanocarbon has a large specific surface area, which can improve the adsorption force of the soil on nutrient elements, thereby effectively controlling the above-ground nutrient volatilization, surface runoff and Loss of deep seepage. At the same time, nano-carbon can improve the electrochemical properties of soil and promote the absorption of nutrients by the root system, thereby improving the utilization rate of fertilizers, reducing agricultural non-point source pollution, and ultimately saving fertilizers and increasing efficiency.
Graphene nanomaterials also play an excellent role in the adsorption and purification of agricultural pollutants, especially for pesticide and heavy metal pollution in water.