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1.
Precision agriculture (PA) technologies have been commercially available since the early 1990s. However, not only has the pace of adoption in the US been relatively modest but a surprisingly large number of producers are not familiar with these technologies. Using farm level survey data, this study quantifies the role that awareness plays in the decision to adopt PA technology and allows us to explore the potential for public or private information programs to affect the diffusion of PA. PA adoption and awareness are modeled as jointly determined dichotomous variables and their determinants are estimated using a two-stage (i.e. instrumental variable) logistic specification. The first-stage logit model indicated that operator education and computer literacy, full-time farming, and farm size positively affected the probability of PA awareness while the effect of age was negative. Grain and oilseed farms (i.e. corn, soybean, and small grains) and specialty crop farms (i.e. fruits, vegetables, and nuts) as well as farms located in the Heartland and Northern Great Plains regions were most likely to be aware of PA technologies. The second-stage PA adoption logit model, which included an instrumental variable to account for the endogeneity of awareness, revealed that farm size, full-time farming, and computer literacy positively influenced the likelihood of PA adoption. Grain and oilseed farms were the most likely types of farms to adopt PA as were farms in the Heartland region. Awareness, as defined in this study, was not found to be limiting the adoption of PA, suggesting that farmers for whom the technology is profitable are already aware of the technology and that a sector-wide public or private initiative to disseminate PA information would not likely have a major impact on PA diffusion. 相似文献
2.
Pattarawan Watcharaanantapong Roland K. Roberts Dayton M. Lambert James A. Larson Margarita Velandia Burton C. English Roderick M. Rejesus Chenggang Wang 《Precision Agriculture》2014,15(4):427-446
The timing of technology adoption is influenced by profitability and farmer ability to bear risk. Innovators are typically more risk tolerant than laggards. Understanding the factors influencing early adoption of precision agriculture (PA) technologies by cotton farmers is important for anticipating technology diffusion over time. The factors influencing the timing of grid soil sampling (GSS), yield monitoring (YMR) and remote sensing (RMS) adoption by cotton producers was evaluated using multivariate censored regression. Data for cotton farmers in 12 states were obtained from a survey conducted in 2009. The factors hypothesized to influence the timing of adoption included farm characteristics, operator characteristics, PA information sources, adoption of other PA technologies, and farm location. The results suggest that different factors influenced when cotton farmers adopted GSS, YMR and RMS after these technologies became commercially available. For example, land ownership was associated with the timing of GSS adoption, but not YMR or RMS adoption; farmer age was correlated with the timing of GSS and YMR adoption, but not RMS adoption; and obtaining PA information from consultants affected the timing of GSS and RMS adoption, but not YMR adoption. The only factors correlated with the early adoption of all three technologies were beliefs that PA would improve environmental quality and the adoption of at least one other PA technology. Thus, the potential for improved environmental quality appears to be a strong adoption motivator across PA technologies, as is the earlier adoption of other PA technologies. This research may be useful for farmers, researchers, Extension personnel, machinery manufacturers, PA information providers and agricultural retailers to anticipate the future adoption of new and emerging PA technologies. 相似文献
3.
Beth CLARK Glyn D. JONES Helen KENDALL James TAYLOR Yiying CAO Wenjing LI Chunjiang ZHAO Jing CHEN Guijun YANG Liping CHEN Zhenhong LI Rachel GAULTON Lynn J. FREWER 《农业科学与工程前沿(英文版)》2018,5(4):485
Precision agriculture (PA) technologies have great potential for promoting sustainable intensification of food production, ensuring targeted delivery of agricultural inputs, and hence food security and environmental protection. The benefits of PA technologies are applicable across a broad range of agronomic, environmental and rural socio-economic contexts globally. However, farmer and land-manager adoption in low to middle income countries has typically been slower than that observed in more affluent countries. China is currently engaged in the process of agricultural modernisation to ensure food security for its 1.4 billion population and has developed a portfolio of policies designed to improve food security, while simultaneously promoting environmental protection. Particular attention has been paid to the reduction of agricultural inputs such as fertilisers and pesticides. The widespread adoption of PA technologies across the Chinese agricultural landscape is central to the success of these policies. However, socio-economic and cultural barriers, farm scale, (in particular the prevalence of smaller family farms) and demographic changes in the rural population, (for example, the movement of younger people to the cities) represent barriers to PA adoption across China. A framework for ensuring an acceptable and accelerated PA technology trajectory is proposed which combines systematic understanding of farmer and end-user priorities and preferences for technology design throughout the technology development process, and subsequent end-user requirements for implementation (including demonstration of economic and agronomic benefits, and knowledge transfer). Future research will validate the framework against qualitative and quantitative socio-economic, cultural and agronomic indicators of successful, or otherwise, PA implementation. The results will provide the evidence upon which to develop further policies regarding how to secure sustainable food production and how best to implement PA in China, as well as practical recommendations for optimising end-user uptake. 相似文献
4.
5.
Factors influencing the adoption of precision agricultural technologies: a review for policy implications 总被引：2，自引：0，他引：2
Increasing pressure for food security and sustainability as well as a need to halt environmental degradation has focused attention on increasing the efficient use of farm resources. One answer to aspects of that problem is the use of precision agricultural technologies (PATs). To facilitate their adoption, initiatives have been fostered in developed countries since the 1980s. Despite a low rate of adoption elsewhere, similar efforts in recent years have been initiated in developing countries. Given this, understanding those underlying factors that influence the adoption of PATs is vital. It is timely to review these factors and to draw policy implications from that review for future actions. This review, based on studies investigating the limited adoption of PATs in ??experienced?? countries, extrapolates their findings to explain why farmers have or have not adopted PATs. At the same time, this review summarizes the key insights for more effectively targeting ??new?? followers: e.g. it provides some answers to the question of who is more likely to adopt PATs. Additionally, the review points to the limitations of current research in the area and suggests a robust economic model or multidisciplinary approach be adopted for future investigation. 相似文献
6.
An Awareness-Adoption Matrix for Strategic Decision Making in Agricultural Development Projects： A Case Study in Yunnan Province, China 总被引：4，自引：0，他引：4
M Subedi T J Hocking M A Fullen A R McCrea E Milne WU Bo-zhi D J Mitchell 《中国农业科学(英文版)》2009,8(9):1112-1119
Significant achievements have been made in generating sustainable agricultural technologies in developing countries. Usually, these new technologies have been more effective in increasing production and productivity than existing technologies. However, many new technologies considered ＇effective＇ have not been successful in alleviating the associated sustainability problems, due to poor adoption by targeted users. Success of any novel technical intervention should be judged on the basis of how widespread adoption is in the target area by targeted users. In this context, a case study identified the factors affecting farmers＇ adoption of improved technologies extended by an agricultural development project in a rural Village in Yunnan Province, China. Initial adoption/adaptation of project technologies was influenced by farmers＇ awareness of the technology. Farmers were more aware of polythene mulch, contour cultivation, intercropping and tree planting technologies than others. This led to a comparatively high initial uptake of polythene mulch, contour cultivation, sweet chestnut, and intercropping technologies. Farmers had inadequate knowledge about some Project technologies, the adoption of which was particularly low. This reveals the need for increasing farmers＇ awareness about the rationale for Project technologies to achieve greater adoption/adaptation of project technologies by farmers over wider areas. Farmers＇ testing of the technology leads to better adoption/adaptation compared to mere awareness. However, considerable time and resources are required for testing/trying technologies. This justifies the usefulness of comparatively quick and less resource demanding options for awareness creation. Development of effective cropping technologies is important for sustainable agricultural development. The success of any agricultural development project, especially in terms of improving sustainability, depends on how widely those improved technologies are adopted/adapted by farmers in the targeted region. Therefore, farmers＇ adoption of technologies should be a key criterion for judging the success of any project. The awareness-adoption matrix is a useful tool to guide research and development projects to achieve expected adoption/adaptation of technologies. Use of the matrix helps identification of weak and strong aspects of research and development projects and thus assists strategic decision-making. 相似文献
7.
考查农户特征、资源禀赋与农户台湾农业技术采用行为之间的相互作用关系,对于认清农户采用台湾农业技术的行为决策具有积极的理论意义与实际参考价值。通过对影响农户采用台湾农业技术的可能因素进行界定,并进一步细分为16个解释变量;并对这16个解释变量与被解释变量农户台湾农业技术采用行为之间的关系提出相应的研究假设;进一步对实地调查取得的328份样本数据运用Logistic回归模型进行统计分析。结果显示,农户的性别、文化程度、是否参加农业经济合作组织、家庭位置、家庭劳动力、家庭平均年收入、农业收入占总收入比重7个解释变量对被解释变量农户台湾农业技术采用行为产生显著的影响。 相似文献
8.
Michels Marius von Hobe Cord-Friedrich Weller von Ahlefeld Paul Johann Musshoff Oliver 《Precision Agriculture》2021,22(6):1728-1748
Drones are one of the latest tools to have been added to farmers’ precision agriculture technology tool kit. Despite the proclaimed benefits, adoption rates of drones are low and literature regarding the adoption of drones in agriculture is scarce. Therefore, this study investigates whether an extended Technology Acceptance Model (TAM) can contribute to the understanding of latent factors influencing farmers’ intention to adopt a drone. The sample of 167 German farmers was collected in 2019 via an online survey. Using partial least squares structural equation modelling and a binary model, the TAM explains 69% of the variance in the intention to use a drone by German farmers. According to the results, raising farmers’ awareness of farm-specific areas of drone application and the confidence level of using a drone can increase farmers’ intention to adopt a drone. The results are of interest for agribusinesses developing drones as well as selling or providing drones. Furthermore, the results are of interest for researchers in precision agriculture technologies.
相似文献9.
Using a literature pool spanning 23 years, this meta-analysis quantifies the effect of factors underlying the adoption of precision agriculture. Unlike statistical significance, which demonstrates how likely adoption is due to chance, effect size indicates the importance of a factor to adoption. This meta-analysis finds that perceived profitability, consultants and use of a computer factors have a moderate effect. However, the findings should not be regarded as definitive because of issues of sample size and heterogeneity embedded in a number of the reference studies. This latter point is re-enforced by observation of other factors that had a negligible effect on adoption. Whether future studies will provide meaningful policy implications depend on a careful understanding and selection of factors, models, and statistical treatment in relation to decision-making paths and their context.
相似文献10.
M. Busse A. Doernberg R. Siebert A. Kuntosch W. Schwerdtner B. König W. Bokelmann 《Precision Agriculture》2014,15(4):403-426
In the precision farming (PF) literature on innovation activities, it becomes apparent that only individual aspects of the entire PF innovation process chain are considered, namely, the knowledge transfer and the adoption of PF applications. Therefore, this study seeks to analyze the innovation mechanisms in the entire PF innovation process chain. The paper identifies potentials, barriers and challenges for PF innovations in Germany and the respective agricultural subsector plant production. An in-depth understanding of innovation mechanisms is required to enhance innovation capabilities, overcome obstacles and bring further innovations to the agricultural field. A mix of qualitative and quantitative methods was applied—including interviews, an expert workshop and a Delphi survey—to explore innovation mechanisms and the role of heterogeneous actors. The research is based on the analytical framework of the sectoral innovation system approach. Key results are the identification of barriers in the later stages of the innovation processes (including validation, serial production and adoption), a gap in the knowledge transfer between science and practice, insufficient communication and co-operation between actors and the important influence of political and legal conditions. Furthermore, this study showed that farmers play an important role in the generation of innovations. For example, farmers are not only adopters or demanders but also impulse providers or co-developers. In conclusion, this study moves the PF innovation debate forward not only by providing adoption facts but also by presenting explanations for the complex interactions between actors throughout the innovation process chain. 相似文献
11.
植物器官生理年龄划分方法的研究 总被引：1，自引：0，他引：1
生理年龄是植物学家为描述植物生长过程而提出的,它的合理划分对于分析树木的生长变化规律、构建树木的生长模型具有重要意义。对于拓扑结构复杂的多年生高大树木而言,生理年龄的划分并不简单,目前还没有一个系统的划分方法。为了快速、合理地划分植物各器官的生理年龄,基于欧美杨107的实测数据,根据生理年龄的概念,提出了一种自动划分多年生高大树木生理年龄的新方法。结果表明:本文提出的划分方法是可行的,并在一定程度上克服了人工方法存在的误差大、操作复杂等问题。该方法也可以被借鉴应用于其他多年生树木生理年龄的确定。 相似文献
12.
城镇化进程中的粮食安全问题:一个研究综述 总被引：3，自引：2，他引：1
研究城镇化进程中的粮食安全问题,本质上是城镇化进程中产业之间的协调问题。中国的城镇化由于规模庞大、人口众多,使得城镇化是否影响粮食安全的研究一直伴随着国家城镇化水平的提升而从未间断过,特别是中国开始进入城镇化快速发展阶段之后。在简单回顾城镇化与粮食安全问题研究历史的基础上,通过着重梳理近十年来中国城镇化对粮食安全的研究文献,从城镇化影响粮食安全的因素和城镇化背景下保障粮食安全的解决方案两个角度的内容出发,指出了研究侧重点的发展变化。在影响因素问题上,研究者们从最初的侧重关注耕地减少,到探索农业生产技术应用提升农业生产力,再到保障劳动力的资源水平和满足粮食消费,越来越全面地认识城镇化对粮食安全的影响。而在解决方案上,从战略政策的演变,到夯实生产能力的策略变化,再到对海外资源依靠方式的转变,体现出不断完善的粮食安全保障体系建立。最后认为未来的研究可以在空间异质性、人力资本和制度要素变化上进一步深入。 相似文献
13.
针对目前城市轨道交通线网规划中基于层次分析法的决策方法已无法反映判断的不确定性和模糊性的问题,提出一种新的优化决策研究方法.该方案应用模糊数学理论优选综合评价和层次分析相结合的方法对城市轨道交通线网规划进行决策评价,并提出了分层模糊优化决策模型.该模型通过多人专家的决策,将各个因素层次化,并且构建模糊矩阵,并计算出各层的权重,采用归一法,经过模糊化运算,最终得出结果,并应用到实例验证了采用此种方法的可行性. 相似文献
14.
Nyaga Justine M. Onyango Cecilia M. Wetterlind Johanna Söderström Mats 《Precision Agriculture》2021,22(4):1217-1236
Precision agriculture (PA) has a huge potential for growth in sub-Saharan Africa (SSA), but it faces a number of social-economic and technological challenges. This study sought to map existing PA research and application in SSA countries following the methodology for systematic mapping in environmental sciences. After screening for relevance, the initial about 7715 articles was reduced to 128. Results show that most of the studies were conducted in countries with socio-economic and technological advancement, mainly South Africa followed by Nigeria and Kenya. The studies were conducted at various scales ranging from field to country level with field scale studies being the most common. Most studies were conducted in relatively small farms typical of most farmlands in SSA. Studies done in relatively large farms are fewer, and such farms would likely belong to a few organisations and individuals with high economic capacity. Many of these studies have been conducted by researchers from outside SSA and a combination of researchers from within and outside SSA. However, based on authorship of the articles, it appears that most of the studies conducted in SSA on precision agriculture have either involved or depended on non-African researchers. It is concluded that there have been significant strides towards use of precision agriculture in SSA. However, with about 21 countries having no research done, there exists greater potential for precision agriculture in the region. Besides, there is need for more research to investigate the low usage of precision agriculture for livestock management.
相似文献15.
Precision agriculture and autosteer technology are, overall, profitable investments for farmers, as previous literature has established. However, what has not been investigated is whether or not farmers perceive these technologies as such. This research postulates that cotton farmers must see potential for higher profits as a result of adopting precision technologies in order to adopt it. Using the 2009 Southern Cotton Precision Farming Survey and multinomial logit model, this research investigates farmers’ perception of precision agriculture and how those perceptions impact adoption of the autosteer GPS guidance system. Autosteer adoption was found to be significant and positively related to the perceived future importance of precision agriculture as well as farmers’ ranking of input cost savings relative to other attributes of the autosteer GPS technology. Additionally, results show that the attributes of the cotton picker are also important factors in adoption of autosteer GPS technology. 相似文献
16.
Ivan S. Adolwa Stefan Schwarze Imogen Bellwood-Howard Nikolaus Schareika Andreas Buerkert 《Agriculture and Human Values》2017,34(2):453-472
Agriculture remains the backbone of most African economies, yet land degradation severely hampers agricultural productivity. Over the last decades, scientists and development practitioners have advocated integrated soil fertility management (ISFM) practices to improve soil fertility. However, their adoption rates are low, partly because many farmers in sub-Saharan Africa are not fully aware of the principles of this system innovation. This has been attributed to a wide communication gap between farmers and other agricultural actors in agricultural knowledge and innovation systems (AKIS). We add to the literature by applying innovation system approaches to ISFM awareness processes. This study aims to assess if AKIS are effectively disseminating ISFM knowledge by comparing results from two sites in Kenya and Ghana, which differ in the uptake of ISFM. Social network measures and statistical methods were employed using data from key formal actors and farmers. Our results suggest that the presence of weak knowledge ties is important for the awareness of ISFM at both research sites. However, in Kenya AKIS are more effective as there is a network of knowledge ties crucial for not only dissemination but also learning of complex innovations. This is largely lacking in Ghana where integration of formal and informal agricultural knowledge systems may be enhanced by fostering the function of informal and formal innovation brokers. 相似文献
17.
Centola D 《Science (New York, N.Y.)》2011,334(6060):1269-1272
How does the composition of a population affect the adoption of health behaviors and innovations? Homophily--similarity of social contacts--can increase dyadic-level influence, but it can also force less healthy individuals to interact primarily with one another, thereby excluding them from interactions with healthier, more influential, early adopters. As a result, an important network-level effect of homophily is that the people who are most in need of a health innovation may be among the least likely to adopt it. Despite the importance of this thesis, confounding factors in observational data have made it difficult to test empirically. We report results from a controlled experimental study on the spread of a health innovation through fixed social networks in which the level of homophily was independently varied. We found that homophily significantly increased overall adoption of a new health behavior, especially among those most in need of it. 相似文献
18.
张雅琪 《云南农业大学学报(自然科学版)》2021,(3):1-7
乡村振兴战略要求在农村新能源供给结构上进一步优化提升,也要求其技术上的创新提升。因此,在研究农村新能源和其技术提升的意义之后,从江苏省农村新能源技术创新现状入手,研究其发展现状。接着在总结文献综述与问卷调查的基础之上,确立影响技术创新能力的两个维度的八个影响因素,建立江苏省农村新能源技术创新的评估模型。再运用DEMATEL方法进一步研究影响因素之间的相互关系,并找到关键因素为政府干预、人才技术和创新投入,从而提出政府要发挥干预作用、企业自身加大人才技术投入和注重新能源产学研的发展三大提升策略,助力乡村振兴。 相似文献
19.
M. Ruiz-Altisent L. Ruiz-Garcia Renfu Lu E.C. Correa B. Nicolaï 《Computers and Electronics in Agriculture》2010,74(2):176-194
This review covers developments in non-invasive techniques for quality analysis and inspection of specialty crops, mainly fresh fruits and vegetables, over the past decade up to the year 2010. Presented and discussed in this review are advanced sensing technologies including computer vision, spectroscopy, X-rays, magnetic resonance, mechanical contact, chemical sensing, wireless sensor networks and radio-frequency identification sensors. The current status of different sensing systems is described in the context of commercial application. The review also discusses future research needs and potentials of these sensing technologies. Emphases are placed on those technologies that have been proven effective or have shown great potential for agro-food applications. Despite significant progress in the development of non-invasive techniques for quality assessment of fruits and vegetables, the pace for adoption of these technologies by the specialty crop industry has been slow. 相似文献
20.
Claudia Brito Silva Márcia Azanha Ferraz Dias de Moraes José Paulo Molin 《Precision Agriculture》2011,12(1):67-81
Precision agriculture (PA) technologies are being applied to crops in Brazil, which are important to ensure Brazil’s position in agricultural production. However, there are no studies available at present to indicate the extent to which PA technologies are being used in the country. Therefore, the main objective of this research was to investigate how the sugar-ethanol industry in São Paulo state, which produces 60% of the domestic sugarcane, is adopting and using these techniques. For this purpose, primary data were used, which were obtained from a questionnaire sent to all companies operating in the sugar-ethanol industry in the region. The aim was to determine to what extent these companies are adopting and using PA technologies, and also to promote a more in-depth discussion of the topic within the sugar-ethanol industry. Information was obtained on the features of the companies, on sources of information that they use for adopting these technologies, on their impacts on these companies and on obstacles hindering their adoption. The main conclusions of this research suggest that companies that adopt and use PA practices reap benefits, such as managerial improvements, higher yields, lower costs, minimization of environmental impacts and improvements in sugarcane quality. 相似文献