my country's agricultural digitalization faces many challenges

You Liangzhi, senior research fellow at the International Food Policy Research Institute

In recent years, the advantages of digital agriculture are obvious, and China has also achieved remarkable results in the construction of agricultural digitalization, such as the improvement of facilities and equipment, the R&D and application of various sensors and remote sensing satellites, and the preliminary establishment of a policy support system

Global food security is one of the key challenges facing the world in the 21st century, and the rapid transformation of agri-food and food systems is an important measure to address this challenge

The application of digital agricultural technology in production practice is still very low

At present, although the digital agricultural technology that can be applied in China has developed rapidly, the proportion of promotion and application in agricultural production practice is still very low

Compared with traditional technologies, digital agricultural technology has the following characteristics: high content of cutting-edge technology and interdisciplinary knowledge, supported by technologies such as big data, Internet of Things, artificial intelligence, remote sensing, etc.

In order to help business entities overcome knowledge constraints, digital technology can be used to promote agricultural technology

Crop remote sensing mapping is still in its infancy

Crop planting area and spatial distribution information are the basic data for crop growth monitoring, yield estimation and water resources management, as well as the main basis for crop structure adjustment and layout optimization

Developed countries and regions such as the United States and the European Union have completed the development of "One Map of Crops" and realized operational operation

With the continuous development of satellite platforms and remote sensing technology, data with different spatial resolutions, different spectral resolutions, and different temporal observation frequencies are flourishing

Low-altitude drone remote sensing is underutilized

As an emerging technology for earth observation, low-altitude UAV remote sensing has been quickly accepted and applied by the industry due to its flexibility and ease of deployment

Although the efficiency of low-altitude UAV remote sensing in the process of agricultural production information acquisition is widely accepted, its high-throughput, high-frequency, and high-precision characteristics have not been recognized and fully utilized

Agricultural models encounter bottlenecks in landing

The agricultural model involves all aspects of agricultural production, and aims to quantitatively describe the relationship between the internal and external elements of the agricultural system

With the development of sensor equipment and the rapid development of artificial intelligence technology, data acquisition and analysis already have corresponding technical reserves

In view of the reasons for the difficulty in implementing the above agricultural models, we can take countermeasures from the following two aspects: First, set up majors related to agricultural models

"China Food News" (December 17, 2021 04 edition)

(Editor in charge: Zhu Meiqiao)