Took Minle County as the research area, based on field investigations and data analysis, this paper expounded the difficulties faced by drip irrigation and sprinkler irrigation technologies in their promotion at the grassroots level, including high initial investment, insufficient technical awareness, mismatched infrastructure, complex operation and management, and an imperfect policy support system. By comparing the applicability of the two technologies, this paper proposed improvement countermeasures such as hierarchical and categorized subsidies, improving the technical service system, promoting the integration of "agronomy-machinery-water conservancy", innovating management and operation models, and improving the water price and water rights mechanism, with the aim of providing reference for the large-scale promotion of efficient water-saving irrigation technologies in similar regions.

Took the Nanyang section of the South-to-North Water Diversion Project as an example, by analyzing the regional and engineering characteristics, types of ecological risks, and governance practices, the key links of collaborative governance were analyzed. A mechanism construction idea was proposed based on the premise of responsibility division, support of information sharing, handling of monitoring and early warning and emergency linkage as the main focus, guarantee of coordinated law enforcement and daily supervision as the support, and support of funds, personnel, and assessment and evaluation as the basis. Further optimization paths were proposed in aspects such as source reduction and ecological restoration of small watersheds, ecological compensation and behavioral incentives, resilience management during sensitive periods, social co-governance and improvement of grassroots capabilities, and full life-cycle management of projects, to promote the collaborative governance of major engineering water source areas under the constraint of high-standard water supply.

To enhance the energy-saving level of tobacco drying, an in-depth comparative study was conducted on the application effects of open-type, closed-type, and semi-open-type air-source heat pumped in tobacco drying. Through theoretical calculations and field tests, it was found that the semi-open-type unit, relying on the synergy of heat recovery from waste heat and dynamic moisture removal, had the lowest power consumption for drying dry tobacco leaves, demonstrating significant energy-saving advantages. The research results could provide a basis for the selection and promotion of tobacco drying heat pump equipment.

Centering on the topic of the deep integration of agricultural mechanization and agricultural techniques in mountainous areas of Guizhou, this paper systematically explored the theoretical basis, practical challenges, and solutions for the integration of agricultural machinery and agricultural techniques. The research showed that at present, mountainous agriculture in Guizhou was constrained by complex natural conditions, scattered and fragmented plots, and diverse agricultural techniques. The adaptability between the research and promotion of agricultural machinery and the existing requirements of agricultural production was insufficient, and the degree of integration of agricultural machinery and agricultural techniques was low. This had become a key bottleneck restricting the modernization of mountainous agriculture. It was necessary to coordinate efforts from multiple dimensions such as infrastructure renovation, unified agricultural standards, talent team building, market entity cultivation, and information resource integration to jointly build a integrative development system of agricultural machinery and agricultural techniques that was suitable for the characteristics of mountainous areas in Guizhou, providing solid support for the modernization of mountainous agriculture in Guizhou.

This paper aimed to systematically study the key technologies applied by Freshippo throughout the entire supply chain preservation process, including origin-source preservation, intelligent cold chain logistics, intelligent warehousing and processing, store-level precise preservation, and digital sales warning. Through in-depth analysis of its technical architecture, operation mode, and application cases, combined with data and charts for comparison, it demonstrated the effectiveness of this system in reducing losses, improving quality, and ensuring food safety.

This study focused on the water diversion project system of the Yellow River's middle and lower reaches centered around the Xiaolangdi Reservoir, systematically analyzing its mechanisms and effectiveness in flood control and disaster reduction as well as agricultural irrigation guarantee. Historical operation data and typical cases showed that the Xiaolangdi Reservoir had a stable reduction ratio of more than 40% in flood peak flow, significantly enhancing the flood control standard. At the same time, through water storage regulation and cross-regional water transfer, it could effectively guarantee water supply for downstream and cross-regional irrigation during dry periods, supporting food security and ecological security. The study also pointed out that the project operation still faced challenges such as extreme climate and water resource competition, and further optimization of scheduling strategies and improvement of collaborative management levels were needed. The research results could provide scientific basis for the refined scheduling of water diversion projects and sustainable management of water resources in the basin, and were of great significance for ensuring national water security, food security and ecological security.

In response to the difficulty in quantifying the efficiency of agricultural machinery operations in our country, this paper took the combine harvester for wheat in the the Huanghuaihai Plain as the object, and built a model for evaluating and predicting the efficiency of agricultural machinery based on time series analysis, aiming to promote the improvement of the efficiency of agricultural machinery operations. Firstly, a multi-dimensional efficiency evaluation system including time utilization rate and average fuel consumption was established based on the operation log data; secondly, the STL decomposition method was used to eliminate the long-term and seasonal trend of the efficiency sequence; finally, the efficiency prediction was carried out.

This paper aimed to explore the mechanism and empirical effect of agricultural green innovation on the integration of rural industries. Based on theoretical analysis, research hypotheses were proposed, and an empirical test was conducted using provincial panel data of China from 2010 to 2023. The focus was on examining the influence mechanism and regional heterogeneity. The study found that agricultural green innovation had a significant promoting effect on the overall integration of rural industries, but there were regional differences. The eastern and central regions showed a positive effect, while the western region exhibited a restraining effect. The mechanism analysis indicated that agricultural green innovation mainly promoted rural industry integration through reducing energy consumption. The research conclusion provided empirical evidence for understanding the role of agricultural green innovation in regional coordinated development.

This paper took Nanyang City as the research object, focusing on the "low air+cultural and tourism" integrated innovation development model, deeply exploring the rural characteristics, and had explored a sustainable practical path that was in line with the local reality. By reviewing the development status, achievements and existing problems of the "low air+cultural and tourism" projects in Nanyang City, based on the unique rural resource endowment of Nanyang City, specific solutions were proposed to promote the integrated development of the "low air+cultural and tourism" projects in Nanyang City, and also provide reference and inspiration for the integrated development of Low Air Economy and rural cultural tourism in similar regions.

Currently, the digital transformation of the entire agricultural industry chain faces common obstacles such as the structural imbalance and functional mismatch of digital infrastructure, the obstruction of the circulation of data elements and the dilemma of value release, the systematic lack of comprehensive digital talents, and the imperfect institutional guarantee and market incentive systems. To this end, it is necessary to form a sustainable development ecosystem by improving multi-party collaborative promotion mechanisms such as infrastructure co-construction and sharing mechanisms, data element circulation and governance mechanisms, talent training and collaborative innovation mechanisms, policy and institutional guarantees, and market incentive mechanisms, so as to break through the bottleneck of digital transformation of the entire agricultural industry chain, truly release the enabling effect of digital technology on the entire agricultural chain, and inject strong impetus into agricultural and rural modernization.