A Study on the Utilization Rate and Influencing Factors of Small Agricultural Machinery: Evidence from 10 Hilly and Mountainous Provinces in China

Li, Hongbo; Chen, Lewei; Zhang, Zongyi

doi:10.3390/agriculture13010051

Cited by 15 publications

(6 citation statements)

References 38 publications

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“…(2) Under WTO rules, China should increase support for agricultural subsidies and implement targeted and oriented assistance. According to local conditions, guide subsidies, and assistance to provide the building of small and medium-sized agricultural hydropower, the purchase of agricultural machinery [48], and the use of special breeding technology in the countryside, so as to ensure that the level of agricultural greening, modernization, and self-sufficiency in fat will be improved.…”

Section: Enlightenmentmentioning

confidence: 99%

Research on the Construction of China’s Provincial Food Security Evaluation System and Regional Performance—Based on the “Great Food View”

2023

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Based on the internationally recognized concept of food security and the scientific connotation of the “Great Food View”. This research constructs China’s provincial food security evaluation system under the “Great Food View” by comprehensively considering the regional food supply logic and dietary habits differences. Combining the improved entropy weight method and AHP to quantitatively evaluate the current situation and trend of food security in China’s provinces (except Hong Kong, Macao, and Taiwan) from 2009 to 2021 by using this system—on the basis of dividing China’s provinces into main food production provinces and non-main food production provinces. The results demonstrate that all provinces have entered the ranks of “security” and above food security, and the mismatch between “high vulnerability and low security” has been alleviated. Yet, the problem of “difficult growth” in the provinces with the lowest score of food security has emerged. The green and sustainability of the food security system in the main food production areas have been at a low level, and the food security in non-main food production areas has seen the “Matthew effect” of uneven development. Finally, policy implications are proposed from the aspects of diversified development of food sources, precision agriculture subsidy guide, optimization of farmland compensation and protection policies, and optimization of food storage and distribution.

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Section: Enlightenmentmentioning

confidence: 99%

Research on the Construction of China’s Provincial Food Security Evaluation System and Regional Performance—Based on the “Great Food View”

2023

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“…There are two different development directions of modern agricultural machinery [1,2] . One is to develop in the direction of super large scale and complexity.…”

Section: Introductionmentioning

confidence: 99%

Multi-machine collaboration realization conditions and precise and efficient production mode of intelligent agricultural machinery

Bo,

Xiaoxue,

Yana

et al. 2024

International Journal of Agricultural and Biological Engineering

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Multi-machine collaboration of agricultural machinery is one of the international frontier and hot research in the field of agricultural equipment. However, the current domestic multi-machine collaborative operation of agricultural machinery is limited to the research of task goal planning and collaborative path optimization in a single production link. In order to achieve the purpose of zero inventory of agricultural materials and precise and efficient production operations, a new technology of agricultural machinery multi-machine collaboration with multi-dimension and full chain was proposed, which takes into account the whole process of agricultural production, as well as agricultural machinery system and external supply chain, storage and transportation chain collaboration. The problems of data collaboration, process collaboration and organization collaboration were analyzed. And the realization conditions of new multi-machine cooperative technology were analyzed. Meanwhile, the zero inventory mode and precise operation mode of agricultural materials under the background of multimachine cooperation of intelligent agricultural machinery were studied. Then, a precise and efficient agricultural production mode based on data-process-organization collaboration was constructed. The results showed that the multi-machine cooperative technology mode of multi-dimensional and full-chain agricultural machinery could greatly improve the efficiency of agricultural machinery, operation quality, land utilization rate and reduce production cost.

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“…In recent years, with the gradual development to higher speeds and more efficient and higher intelligence of combine harvesters, it is extremely urgent to the vibration reduction optimization of combine harvesters to study the vibration transfer path and contribution characteristics [11,12].…”

Section: Introductionmentioning

confidence: 99%

Damping Optimization Method of Combine Harvester Frame Undergoing Multi-Source Excitation

Wang,

Chen,

Wang

et al. 2024

Agriculture

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The complex mechanical system of a rice combine harvester not only has various excitation sources, but also, the vibration transmission path between each working device and the vibration contribution characteristics to the frame are not clear, so it is difficult to perform a reduction vibration design for the sharp vibration of the rice combine harvester frame. Therefore, based on the comparison and improvement of multiple classical transfer path analysis methods, this paper analyzed the vibration transfer characteristics and transfer characteristics of each harvester by the discrete time matrix method and operating path method. In the Experimental section, through the vibration characteristic experiment firstly, this paper obtained the power spectrum variation and the most needed optimized path in the transmission path of each device under each operating condition. Secondly, through frame simulation analysis under the exciting force, we obtained the vibration damping areas that needs to be optimized. Finally, the damping optimization experiment connected with the vibration characteristic experiment, and the excitation force simulation analysis was performed. The results of the damping optimization experiment displayed that the maximum change value of the vibration acceleration of the cutting table decreased from 7.862 m·s−2 to 3.522 m·s−2, decreasing by 55.2%, and the peak amplitude of the multipoint test in the cab was 5.4, 5.3, 1.7 and 2.0 μm, respectively, which was significantly reduced, so the optimization effect was significant. This study provides theoretical support for the vibration reduction optimization of a rice combine harvester frame.

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A Study on the Utilization Rate and Influencing Factors of Small Agricultural Machinery: Evidence from 10 Hilly and Mountainous Provinces in China

Cited by 15 publications

References 38 publications

Research on the Construction of China’s Provincial Food Security Evaluation System and Regional Performance—Based on the “Great Food View”

Research on the Construction of China’s Provincial Food Security Evaluation System and Regional Performance—Based on the “Great Food View”

Multi-machine collaboration realization conditions and precise and efficient production mode of intelligent agricultural machinery

Damping Optimization Method of Combine Harvester Frame Undergoing Multi-Source Excitation

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