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Journal of Agriculture and Rural Development in the Tropics and Subtropics最新文献

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Danny 丹尼
Q3 Social Sciences Pub Date : 2023-03-05 DOI: 10.1093/oseo/instance.00229682
Josh Russell
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引用次数: 0
Santa Fe 圣菲
Q3 Social Sciences Pub Date : 2022-02-17 DOI: 10.1093/nq/s10-vi.147.310c
Sylvie Baumgartel
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引用次数: 0
Forage diversity and fertiliser adoption in Napier grass production among smallholder dairy farmers in Kenya 肯尼亚小农奶牛场纳皮尔草生产中的饲料多样性和肥料采用
Q3 Social Sciences Pub Date : 2021-11-10 DOI: 10.17170/KOBRA-202110274962
D. Njarui, M. Gatheru, J. Ndubi, A. Gichangi, A. Murage
Feed scarcity is one of the major challenges affecting smallholder dairy production in Kenya. Forages are the foundation of livestock nutritional requirements; forage diversification and fertiliser are intensification options that can increase productivity. A sample of 316 and 313 smallholder farmers were surveyed in eastern midlands and central highlands of Kenya, respectively, to establish the types of forages cultivated and the factors that influence fertiliser adoption in Napier grass ( Cenchrus purpureus Schumach.) production. Independent t -tests were applied to compare the effect of continuous variables on social economic and institutional characteristics between adopters and non-adopters on fertiliser and area allocated to different forages. Chi-square tests were used to compare nominal variables for the proportion of farmers growing different forages, criteria they consider in selection of suitable forages, and social economic and institutional characteristics of adopters and non-adopters of fertiliser. Binary logistic regression was used to determine factors that influence fertiliser adoption. The study revealed that forage diversification was low with Napier grass being the only forage cultivated by most farmers (~90%). Urochloa ( Urochloa spp ), Rhodes grass ( Chloris gayana Kunth.) and Guinea grass ( Megathyrsus maximus Jaq.) were cultivated by less than 11% of farmers. The fertiliser adoption rate was high (77%) and was influenced by gender of household head, membership of groups, access to extension services and labour. Future research should focus on promoting of forage diversification and investigate quantity and fertiliser application regimes in order to enable development of appropriate advisory services.
饲料短缺是影响肯尼亚小农户乳制品生产的主要挑战之一。饲料是牲畜营养需求的基础;饲料多样化和施肥是可以提高生产力的集约化选择。分别对肯尼亚中部东部和中部高地的316名和313名小农户进行了调查,以确定种植的牧草类型以及影响纳皮尔草(Cenchrus purpureus Schumach)生产中肥料采用的因素。采用独立的t检验来比较连续变量对采用者和非采用者之间的社会经济和制度特征对肥料和分配给不同牧草的面积的影响。卡方检验用于比较种植不同牧草的农民比例的名义变量、他们在选择合适牧草时考虑的标准,以及化肥采用者和非采用者的社会经济和制度特征。二元逻辑回归用于确定影响肥料采用的因素。研究表明,牧草多样化程度较低,纳皮尔草是大多数农民种植的唯一牧草(约90%)。只有不到11%的农民种植了Urochloa、Rhodes草(Chloris gayana Kunth.)和几内亚草(Megathyrsus maximus Jaq.)。化肥采用率很高(77%),受户主性别、团体成员、获得推广服务和劳动力的影响。未来的研究应侧重于促进饲料多样化,并调查数量和化肥施用制度,以便能够开发适当的咨询服务。
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引用次数: 3
Drivers of adaptation to climate change in vulnerable farming communities: a micro analysis of rice farmers in Ndop, Cameroon 脆弱农业社区适应气候变化的驱动因素:对喀麦隆恩多普稻农的微观分析
Q3 Social Sciences Pub Date : 2021-11-04 DOI: 10.17170/KOBRA-202110274961
Nde I. Zama, F. Lan, Eric F. Zama
Farmers in developing economies often struggle to adapt to climate change and their decisions to adapt usually hinges on perception and prevailing socio-economic factors. This study examines factors controlling farmers’ decision to adapt to climate change and evaluate the impact of such decisions on farm output. Using primary data from 138 rice farming households in Ndop-Cameroon, we employ the probit model with endogenous switching regression to investigate the impact of the farmers’ adaptation decisions on output. The results indicate that access to credits, other incomes, farmers’ age, extension services and farmer groupings form key factors that significantly affects farmers’ decision to adapt to climate change. Strategic implementation of adaptive measures, significantly increased average output of adapters by 49%. Building resilience against climate change and ensuring food security, therefore requires stakeholders to take into account existing management strategies and the underlying factors influencing these. This study suggests the crucial need for institutional advancement and policy changes towards credit accessibility for rice farmers. More local farmers’ associations should be created and extension services improved to enhance effective adaptation and farmers’ vulnerability.
发展中经济体的农民往往难以适应气候变化,他们的适应决定通常取决于认知和普遍的社会经济因素。本研究考察了控制农民适应气候变化决定的因素,并评估了这些决定对农业产量的影响。利用来自喀麦隆恩多普138个水稻种植户的原始数据,我们采用具有内生转换回归的probit模型来调查农民的适应决策对产量的影响。结果表明,获得信贷、其他收入、农民年龄、推广服务和农民群体是影响农民适应气候变化决定的关键因素。战略性实施适应性措施,适配器的平均产量显著提高了49%。因此,建立应对气候变化的能力并确保粮食安全,需要利益攸关方考虑现有的管理战略和影响这些战略的根本因素。这项研究表明,迫切需要在水稻种植户获得信贷方面进行制度进步和政策变革。应建立更多的地方农民协会,改善推广服务,以加强有效的适应和农民的脆弱性。
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引用次数: 2
Genotypic differences in body weight and physiological response of local and exotic turkeys challenged with Salmonella typhimurium 鼠伤寒沙门氏菌攻击本地和外来火鸡体重和生理反应的基因型差异
Q3 Social Sciences Pub Date : 2021-11-02 DOI: 10.17170/KOBRA-202110274960
B. Ilori, D. Oguntade, J. Abiona, So Durosaro, C. E. Isidahomen, M. Ozoje
To better understand susceptibility and/ or tolerance of locally adapted turkey to salmonellosis, we compared bodyweight, antibody titres and physiological traits based on genotype and sex of salmonella -infected turkeys. Three hundred poults from two genotypes (160 local and 140 exotic turkeys) were raised for twenty weeks. Bodyweight (BW), rectal temperature (RT), pulse rate (PR) and respiratory rate (RR) were measured weekly. Blood samples were collected from each turkey before and after inoculations at week 8 and 13 for serum antibody detection using enzyme-linked immunosorbent assay. Genotype had a significant (p < 0.05) effect on all the parameters measured. Exotic turkey had higher weight than local while sexual dimorphism was in favour of toms despite challenge with Salmonella typhimurium . The RT was significantly higher (p < 0.05) in exotic turkeys except at week 2, 6 and 8. In like manner, PR was higher (p < 0.05) in exotic turkey except at week 4 (204.28±2.48 beats/minutes) and 8 (216.98±1.46 beats/minutes) where it was higher in local turkey. RR also followed the same trend while HSI was higher (p < 0.05) in week 2 (1.53±0.06 breaths/minutes) and 14 (1.17±0.07 breaths/minutes) in exotic turkeys. Local turkeys had higher (p < 0.05) antibodies against Salmonella organisms before and after inoculation while the hens of both genotypes had higher (p < 0.05) antibody titres at the 7 th day after inoculations. The present results seemed not to be convincing enough to suggest differences in tolerance/susceptibility to Salmonella infection and therefore the two genotypes may be equally adapted.
为了更好地了解当地适应的火鸡对沙门氏菌病的易感性和/或耐受性,我们比较了受沙门氏菌感染的火鸡的体重、抗体滴度和基于基因型和性别的生理特征。来自两种基因型(160只本地火鸡和140只外来火鸡)的300只火鸡被饲养了20周。每周测量体重(BW)、直肠温度(RT)、脉搏率(PR)和呼吸频率(RR)。在第8周和第13周接种前后,从每只火鸡身上采集血样,用酶联免疫吸附测定法检测血清抗体。基因型对所有测量的参数都有显著影响(p<0.05)。尽管受到鼠伤寒沙门氏菌的挑战,但外来火鸡的体重高于本地火鸡,而两性异形有利于火鸡。除第2周、第6周和第8周外,外来火鸡的RT显著较高(p<0.05)。同样,除了第4周(204.28±2.48次/分)和第8周(216.98±1.46次/分。RR也遵循相同的趋势,而在第2周(1.53±0.06次呼吸/分钟)和第14周(1.17±0.07次呼吸每分钟),外来火鸡的HSI更高(p<0.05)。接种前和接种后,当地火鸡对沙门氏菌的抗体较高(p<0.05),而两种基因型的母鸡在接种后第7天的抗体滴度均较高(p<0.05)。目前的结果似乎不足以令人信服,表明对沙门氏菌感染的耐受性/易感性存在差异,因此这两种基因型可能具有同等的适应性。
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引用次数: 2
Agricultural risk assessment to enhance the food systems of the Mbororo minority community in the Northwest region of Cameroon 加强喀麦隆西北地区姆博罗罗少数民族社区粮食系统的农业风险评估
Q3 Social Sciences Pub Date : 2021-10-29 DOI: 10.17170/KOBRA-202110274959
P. Ebile, Hycenth Tim Ndah, J. Wünsche
Increasing population pressure, coupled with the effects of climate change manifested by longer dry seasons, wildfires, and conflicts, threatens the food systems of minority communities. In the case of the Mbororo minority community of Northwest Region of Cameroon, these threats are exacerbated by already existing problems of marginalisation. This study assesses agricultural risks in the global context of food distribution and gross domestic product that also poses a specific threat to the food system of the Mbororo people. The study aims to (1) assess the types of agricultural risk encountered by the Mbororo community, (2) examine the likelihood and severity of these risks, and (3) appraise local risk management strategies adopted to minimise the negative impacts of these risks on the food system. The study makes use of a mixed method approach for data collection. Findings have revealed animal diseases (83 %), absence of infrastructures (83.6 %), price variation (76.6 %), and drought (75.8 %) as the most encountered risks in the case study area. Especially, drought, political insecurity, pest and rodent, farmer-grazer conflict, and crop and animal diseases emerged as the highest intensity or priority risks with the need for urgent management strategies intervention. Agricultural risk assessment is frequently used to assess and prioritize risks but has hardly been used in the case of minority groups such as the Mbororo community of Northwest Cameroon.
日益增加的人口压力,加上干旱季节延长、野火和冲突等气候变化的影响,威胁着少数民族社区的粮食系统。就喀麦隆西北地区的姆博罗罗少数民族社区而言,已经存在的边缘化问题加剧了这些威胁。这项研究评估了全球粮食分配和国内生产总值背景下的农业风险,这也对姆博罗罗人的粮食系统构成了具体威胁。该研究旨在(1)评估Mbororo社区遇到的农业风险类型,(2)检查这些风险的可能性和严重性,以及(3)评估为最大限度地减少这些风险对粮食系统的负面影响而采取的当地风险管理策略。该研究采用了混合方法进行数据收集。研究结果显示,动物疾病(83%)、缺乏基础设施(83.6%)、价格变化(76.6%)和干旱(75.8%)是案例研究地区最常见的风险。特别是,干旱、政治不安全、病虫害、农牧冲突以及作物和动物疾病成为最高强度或优先风险,需要紧急管理战略干预。农业风险评估经常用于评估风险并确定风险的优先级,但很少用于少数群体,如喀麦隆西北部的姆博罗罗社区。
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引用次数: 1
Gender differences in time-poverty among rural households in Southwest Nigeria 尼日利亚西南部农村家庭时间贫困的性别差异
Q3 Social Sciences Pub Date : 2021-10-29 DOI: 10.17170/KOBRA-202107134323
O. Adeyeye, E. Fabusoro, C. Sodiya, O. Fapojuwo
This study seeks to assess gender inequality in and correlates of time poverty among 360 rural households in Southwest, Nigeria. A person is deemed to be time poor if (s)he works more than 10.5 hours per day, the internationally accepted threshold. Using the time allocation domain of the Abbreviated Women’s Empowerment in Agriculture Index, the study found that on the average, rural women and men spent about 10.3 hours and 8 hours, respectively, on work activities on a daily basis. Work activities for women were found to be diverse, spreading across reproductive and productive domains largely farming, own business e. g. trading, cooking and domestic work, while for men, work activities centred on productive economic activities, dominated by farming. Using a Probit regression model, the study found experience in agriculture and adoption of television to reduce the likelihood of time poverty among rural men. Surprisingly, participation in empowerment projects was found to increase the likelihood of time poverty among rural women. In conclusion, empowerment programmes should be expanded to address the non-material aspects of human well-being. Hence, the study recommends a gender-sensitive approach to intervention programmes in agriculture and adoption of a broader definition of empowerment which not only focus on expanding access to markets and increasing income but enhances control over time. This is more important for women who are already under the double burden of paid and unpaid domestic work.
本研究旨在评估尼日利亚西南部360个农村家庭的性别不平等及其与时间贫困的相关性。如果一个人每天工作超过10.5小时,即国际公认的阈值,则被视为时间贫乏。利用缩略妇女农业赋权指数的时间分配域,该研究发现,农村妇女和男子平均每天分别花在工作活动上的时间约为10.3小时和8小时。妇女的工作活动是多种多样的,分布在生殖和生产领域,主要是农业、自己的生意,如贸易、烹饪和家务劳动,而男子的工作活动以农业为主,以生产经济活动为中心。使用Probit回归模型,研究发现农业经验和电视的采用减少了农村男性时间贫困的可能性。令人惊讶的是,参与赋权项目增加了农村妇女时间贫困的可能性。最后,应扩大授权方案,以处理人类福利的非物质方面。因此,该研究建议对农业干预方案采取对性别问题敏感的做法,并采用更广泛的赋权定义,不仅注重扩大进入市场的机会和增加收入,而且随着时间的推移加强控制。这对已经承受有偿和无偿家务双重负担的妇女来说更为重要。
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引用次数: 2
Effect of different mechanical seed scarification methods on germination and emergence dynamics of baobab (Adansonia digitata L.) 不同机械割种方式对猴面包树发芽和出苗动态的影响
Q3 Social Sciences Pub Date : 2021-10-28 DOI: 10.17170/KOBRA-202107134322
L. Jansen, F. Wichern, J. Gebauer
The African baobab ( Adansonia digitata L.) is a multipurpose fruit-producing tree that is indigenous to the African savannahs. Commercial interest in the species has grown in recent years. The major obstacle of seed-based propagation of baobab is its inherent seed dormancy. Therefore, in this study the effects of different mechanical seed scarification methods on seed germination parameters and seedling development of A. digitata were tested. The results show that mechanical scarification had a significant effect on germination and emergence dynamics of A. digitata . The highest total emergence percentage with 61.7% was achieved by scarifying the seeds with a saw on the hilum side. Cotyledon damage due to mechanical scarification occurred in all treatments. Proportions of damage categories depended significantly on treatment. The largest proportion of undamaged cotyledons was with 63.6% achieved by scarifying the seeds with a saw on the hilum side. This precise technique may be suitable for mass propagation of baobab in a rural setting but the effects of scarification methods on seedling emergence should be further investigated.
非洲猴面包树(Adansonia digitata L.)是一种多用途的果树,原产于非洲大草原。近年来,对该物种的商业兴趣有所增长。猴面包树种子繁殖的主要障碍是其固有的种子休眠。因此,本研究考察了不同机械割种方式对马地黄种子萌发参数和幼苗发育的影响。结果表明,机械割伤对金针叶萌发和出苗动态有显著影响。用锯子在种脐侧划切,总出苗率最高,达61.7%。所有处理均发生机械划伤引起的子叶损伤。损伤类别的比例显著依赖于治疗。在种门侧用锯子割去种子,子叶完好率最高,达到63.6%。这种精确的技术可能适用于猴面包树在农村的大规模繁殖,但切割方法对出苗的影响有待进一步研究。
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引用次数: 0
Determinants of households’ membership in agricultural cooperatives in Bhutan 不丹农业合作社家庭成员的决定因素
Q3 Social Sciences Pub Date : 2021-10-05 DOI: 10.17170/KOBRA-202107134321
Tashi Dendup, Satit Aditto
The Royal Government of Bhutan has been promoting agricultural cooperatives (ACs) in the country; however, the number of people joining ACs is small. This study was conducted to identify the factors influencing households' decision to join ACs in Central Bhutan. A cross-sectional survey was conducted to collect data from 384 households (192 AC members and 192 non-AC members). Trained enumerators collected data in June and July 2018 using structured questionnaires. The binary logistic regression showed that households with older heads of household, being literate, having more family labour, more land under cultivation, owning farm machinery, being further away from a market, and having access to credit increased the likelihood of households joining ACs. Conversely, households earning off-farm income and locating far from the Renewable Natural Resources Centres decreased the likelihood of becoming member of ACs. Additionally, the gender of the head of a household and the number of cattle owned by a household showed no significant influence. As this paper is the first to empirically investigate the determinants of households’ membership in ACs in Bhutan, the findings have some important policy implications. The government should continue to provide in-depth awareness to farmers on concepts and benefits of ACs in retaining existing members and recruiting new members.
不丹王国政府一直在促进该国的农业合作社;然而,加入ac的人数很少。本研究旨在找出影响不丹中部家庭决定加入家政服务的因素。一项横断面调查收集了384个家庭(192个空调成员和192个非空调成员)的数据。经过培训的普查员在2018年6月和7月使用结构化问卷收集数据。二元逻辑回归表明,户主年龄较大、有文化、有更多的家庭劳动力、耕种更多的土地、拥有农业机械、离市场更远、有机会获得信贷的家庭加入联合行动的可能性增加。相反,有非农业收入的家庭和远离可再生自然资源中心的家庭则降低了成为可再生自然资源中心成员的可能性。此外,户主的性别和家庭拥有的牛的数量没有显着影响。由于本文是第一个实证研究不丹家庭成员资格的决定因素,研究结果具有一些重要的政策意义。政府应继续向农民深入介绍农协的概念和好处,以留住现有会员和吸纳新会员。
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引用次数: 0
Tillage system and integrated soil fertility inputs improve smallholder farmers’ soil fertility and maize productivity in the Central Highlands of Kenya 耕作系统和综合土壤肥力投入提高了肯尼亚中部高地小农的土壤肥力和玉米生产力
Q3 Social Sciences Pub Date : 2021-09-20 DOI: 10.17170/KOBRA-202107134319
E. Otieno, F. Ngetich, M. Kiboi, A. Muriuki, N. Adamtey
We designed and implemented an on-farm trial in Meru South and Gatanga sub-counties to understand the effects of integrated soil fertility management (ISFM) technologies on soil nitrogen (N), phosphorus (P), potassium (K), and maize productivity. The technologies included combinations of mineral fertiliser and maize stover (CrMf); crop residue, Tithonia diversifolia and rock phosphate (CrTiP); crop residue, Tithonia diversifolia and goat manure (CrTiMan); crop residue, inorganic fertiliser and goat manure (CrMfMan); crop residue, goat manure and Dolichos lablab (CrManLeg), and sole inorganic fertiliser (Mf) executed under conventional (ConC) and minimum (MinTill) tillage methods. We interviewed the farmers who participated in implementing the trials at the end of the study to understand the likelihood to uptake the technologies. We observed that the technologies increased soil N, P, K, and maize productivity compared to ConC (the control). There was a high likelihood of uptake of high-performing ISFM technologies. We recommend CrTiP for the two sub-counties for the short-term. However, a long-term experiment is needed to evaluate performances of CrTiMan, CrTiP, CrMfMan, and CrManLeg under the two tillage methods for site-specific recommendations taking into consideration rainfall variations.
我们在梅鲁南部和加坦加县设计并实施了一项田间试验,以了解综合土壤肥力管理(ISFM)技术对土壤氮(N)、磷(P)、钾(K)和玉米生产力的影响。这些技术包括矿物肥料和玉米秸秆(CrMf)的组合;作物残留物、香和磷酸岩(CrTiP);作物残留物、香和羊粪(CrTiMan);作物残渣、无机肥料和羊粪(CrMfMan);作物残渣、羊粪和Dolichos实验室(CrManLeg),以及在传统(ConC)和最低(MinTill)耕作方法下施用的唯一无机肥料(Mf)。我们采访了在研究结束时参与实施试验的农民,以了解他们采用这些技术的可能性。我们观察到,与ConC(对照)相比,这些技术提高了土壤氮、磷、钾和玉米的生产力。采用高性能ISFM技术的可能性很高。我们建议这两个子县短期使用CrTiP。然而,需要进行长期实验来评估CrTiMan、CrTiP、CrMfMan和CrManLeg在两种耕作方法下的性能,以便在考虑降雨量变化的情况下提出特定地点的建议。
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引用次数: 5
期刊
Journal of Agriculture and Rural Development in the Tropics and Subtropics
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