Under the background of China’s double-carbon policy and global climate change, the organic combination of photovoltaic and agriculture has given birth to a new mode of integrated development of traditional agriculture and new energy. This paper summarizes the research and development progress in the field of photovoltaic + agriculture in China from the aspects of the concept of photovoltaic technology, the combination of photovoltaic with agricultural production, and the application of photovoltaic in agricultural production. The research shows that the development of photovoltaic technology has reduced the consumption of non-renewable energy to a great extent, which has brought great advantages to energy supply and green organic agricultural production. Future research can deepen the construction of a perfect and idealized photovoltaic + agriculture model from the theoretical system of photovoltaic combined with agriculture.

The indigenous Mayan populations of the Yucatan Peninsula of Mexico have practiced the ancient traditions of family farming, especially home gardens, to ensure their food security. With the objective of improving traditional practice with modern science, data were collected on the structural complexity and functional diversity of 20 home gardens selected at random in each of the following five communities: X-Maben, X-Pichil, X-Yatil, San José II, and Melchor Ocampo. In addition, group discussions were organized to elucidate the management strategy practiced by the indigenous people. The results show that home gardens are managed mainly by women. The main purpose of growing and maintaining home gardens is to guarantee the production of nutritious food year round. Finally, the home gardens also serve secondary purposes, such as the provision of products and services for traditional medicine. This study suggests that home gardens should be promoted and invested in to improve inclusive development strategies for contexts with similar socio-cultural and biophysical circumstances.

The basic principles of the discrete element method were summarized, and commonly used software and its characteristics were introduced. The application of the discrete element method in tillage, planting, harvesting, and other agricultural machinery R&D was reviewed. Typical examples of the application of the discrete element method in agricultural machinery research and design at home and abroad were discussed and analyzed. Application prospect and trend of discrete element method in the field of agricultural engineering were prospected in order to provide reference for further development of modern agricultural equipment digital design.

Taking SCI papers related to the Internet of Things for Agricultural Equipment Research as the object, comprehensively using bibliometric methods, the paper content analysis methods and expert consultation, the methods, through analyses of paper output trends, hot research topics, leading countries, key research contents, etc. The development trend, international competition situation, and hotspot directions of the Internet of Things for agricultural equipment were revealed, with a view to providing decision support for optimizing research layout and project management.