With the introduction of climate-smart agriculture (CSA), it has received widespread attention from scholars around the world1–3. SA has been commonly applied in the field of agriculture, relying on various SA technologies. SA has become a global trend in the development of agricultural modernisation4, and developed countries have objectively formed a squeeze and control on the development of agricultural industries in developing countries by using high-level agricultural technology and agricultural subsidy support as a carrier3 and capital flow and market expansion. Therefore, if China wants to safeguard the steady development of agriculture under the constraints of resources and environment, it must change the way of agricultural development, take the path of high-quality agricultural development, and hold the initiative of agricultural development firmly in its own hands, so as to achieve the transformation from a large agricultural country to a strong agricultural country. For more than a decade in a row, China has published documents related to SA, which is an important initiative to break through the current bottleneck of traditional agricultural development5, achieve high-quality, high-efficiency and sustainable development in agriculture6,7 and take the lead in modernising agriculture and rural areas.
The ageing of those currently engaged in agriculture remains a serious problem8, which can significantly weaken the level of human capital in agriculture, severely limit the scope for technology diffusion and become a potential threat to technological transformation in agriculture9. In the reality of high production costs and risks, there is also a need to improve production efficiency through smart agricultural technologies. Secondly, with the rise in cotton prices and subsidy policies, cotton farmers are stimulated to demand a higher standard of agricultural machinery. In addition, the inefficient use of arable land in current agricultural production and the excessive use of water and agricultural resources in agriculture further exacerbate the overexploitation of resources10,11. At the same time, excessive inorganic inputs have led to a decline in the quality of agricultural products, a decline in land strength, agricultural surface pollution and ecological degradation. Such a reality indicates that there is an urgent need to further liberate labour, improve productivity and conserve resources, and raise farmers' incomes and modern skills, supported by smart farming technologies12, in order to enhance the endogenous development of rural areas. And farmers, as implementers, have a direct influence on their adoption behaviour.
The current research on SA mainly includes the definition of the concept and characteristics of SA, the development status of SA, problems and countermeasures and suggestions13–15. The core technologies in SA are explored in depth, mainly focusing on the application of agricultural production as well as operation and management16, such as the analysis of the application of SA technologies such as the Internet of Things, big data and satellite remote sensing technology17–19, as well as typical development models and practices of SA at home and abroad20.
Based on the classical "economic man hypothesis", most scholars regard farmers as rational economic men and believe that farmers' technology adoption behavioural decisions are rational and economic21,22. However, farmers' behaviour deviates from economic rationality due to their personal characteristics and subjective biases in the decision-making process of behavioural response. As a result, the content and scope of research has been expanding. In-depth studies have been conducted from different perspectives and for different purposes. Showing that farmers' behavioural decisions can be influenced by a combination of internal and external factors has deepened the understanding of farmers' behaviour and the logic behind it. Farmers' gender23–25, age, herd mentality, social capital26, soil fertility and farm size27 are the underlying factors 29 that lead to differences in farmers' perceptions28. The larger the land size, the more effective the adoption of new technologies to achieve efficient production 30 and the more motivated farmers are to adopt them26. Behaviour is also influenced by a combination of other individual characteristics such as literacy, part-time status, access to information, risk perception, social networks31 and household characteristics 32,33. Resource endowment constraints19, 34–36, which are mainly composed of land, labour and capital, are one of the key factors influencing the technology adoption behaviour of farm households. Smallholder farmers are subject to resource constraints that can be effectively mitigated through agricultural social services37 and promote farm technology adoption38. External factors revolve around factors such as policy environment and risk preferences. Government subsidies and policy regulation serve as the two main incentives adopted by governments. Subsidy policies provide incentives for farmers to shift to planting segments that require new technologies more39,40, while institutional constraints discourage farmer adoption behaviour15. The government also motivates farmers through agricultural technology training41–42, advocacy and guidance, and monitoring and control43. In addition, agriculture is naturally vulnerable to multiple risks from natural disasters and market changes44, and it is important for farmers to take into account the possible risk factors when adopting a new technology so that they can allocate their available capital endowment efficiently.
At this stage, the research has been fruitful, but there is still room for expansion. Most of the research subjects are about technologies such as green, low-carbon and CSA, and there is still a need for scientific analysis and accurate pulse on the state of SA technology adoption. In terms of research theory, there is an increasing number of studies exploring technology adoption from the perspective of farmers, with most scholars using the Theory of Planned Behaviour (TPB) to study the influencing factors and pathways45–47. Even though the theoretical system of this framework is more complete and consistent, the selection of indicators is still based on the original structure, considering too many single factors and lacking deeper exploration; research methods mostly make use of models such as Logistic21 and Probit31.
Based on this, this paper uses SEM based on the DTPB to analyse in depth the underlying mechanisms and pathways of each influencing factor. In addition, the current research on technology choice is rather general, and there are still some farmers who are unwilling or fail to adopt new technologies, and what are the reasons for this? Therefore, this paper attempts to dig deeper into the dynamics of cotton farmers' adoption behaviour and their influencing mechanisms from a micro perspective, and to analyse the behavioural logic of cotton farmers' adoption of SA technologies, in order to provide a reference for effectively facilitating cotton farmers' adoption of SA technologies and to provide new ideas for research related to SA.