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This study examines the dynamic relationships among China’s grain production, total agricultural machinery power, urban construction area, and effective irrigated area from 2004 to 2023, employing VAR, cointegration analysis, VECM, Granger causality tests, and variance decomposition. The findings reveal a significant long-term equilibrium among the variables, with total agricultural machinery power and grain production exhibiting a bidirectional causal relationship. Variance decomposition highlights that grain production variability is initially driven by its own shocks, but over time, the influence of agricultural machinery power becomes increasingly significant. The study underscores the critical role of agricultural mechanization and infrastructure in sustaining grain production and provides valuable insights for policymakers to optimize resource allocation and design effective strategies for agricultural development.

Labor education is the educational inheritance of the wisdom of traditional Chinese labor thinking, the reiteration of Marx's idea of “labor educating people”, and the promotion of educational practice in the new era forging the “Chinese Dream”. Agricultural Labor Games is a perfect fusion of labor education and physical education in practical education, opening up a “new track” of labor education in colleges and universities. In the practice of labor education in colleges and universities, sorting out the logic of the college Agricultural Labor Games: first of all, the theoretical logic, is the intermingling of labor education and physical education nurturing attributes; historical logic, is the transmutation from the labor tool to the sports apparatus; practical logic, is the optimization of physical education course ideology and implementation of labor education, to meet the new needs of students on the new demand for sports competitions. Under the guidance of the party and state documents on labor education, actively responding to General Secretary Xi's call for education to promote the “spirit of labor”, we put forward the development strategy of Agricultural Labor Games: increase the declaration and establishment of labor education practice projects in colleges and universities; actively explore the structure of the Agricultural Labor Games for collaborative education; make full use of the advantages of social media dissemination, and increase the mainstream media push; increase the strength of the mainstream media push; and make full use of the advantages of social media dissemination, and increase the strength of the mainstream media push. Increase the mainstream media's push; sound financial investment, strengthen security and other strategies.

Since interdisciplinary studies have been officially recognized as the 14th disciplinary category, there has been growing attention to its development and institutionalization across various academic departments and universities. However, a review of existing literature reveals that current research predominantly focuses on theoretical frameworks, while empirical investigations remain scarce. Drawing on the interdisciplinary evaluation systems established by leading universities and institutions in Europe and the United States, this study designs a comprehensive questionnaire that examines key areas such as interdisciplinary talent development, scientific research outputs, and societal contributions. Using a sample of over 100 universities, the study employs both descriptive and exploratory statistical analyses to identify several critical issues. The findings indicate that the number of interdisciplinary disciplines remains limited, with insufficient resources and institutional support; international collaboration is infrequent; and the functions of interdisciplinary studies are unbalanced. Based on these findings, targeted recommendations are proposed to optimize the development of interdisciplinary fields.

Against the backdrop of the rapid development of the global economy and technology, the low-altitude economy, as an emerging economic form, holds great significance for development. This paper first elaborates on the origin of the low-altitude economy, which is the result of reflecting on the scientific allocation of low-altitude airspace resources and management reforms, and is closely related to the general aviation industry. Then, it reviews the policy support during the development of China's low-altitude economy. The continuous introduction of national and local policies has promoted its vigorous development. Subsequently, it provides a detailed introduction to the development of the drone industry, covering aspects such as technological improvement, intelligent development, expansion of application fields, and growth of the industrial scale. Moreover, drones and the low-altitude economy are highly integrated in terms of airspace utilization, technology, and industrial demand. The research shows that although China's low-altitude economy and drone development face challenges, with the impetus of policies and their own advantages, they have broad prospects for development and are of great significance for promoting high-quality economic development.