Transformations of extension work in the Argentinean pampas and reconstruction of the profession of agricultural engineer

This study represents an extension work to investigate the role of ultra fine sand (UFS) in enhancing the mechanical properties of fiber reinforced cementitious compounds. The micro-structural origins were identified by scanning electron microscope (SEM). About 50% of UFS had a diameter of less than 20 μm. Ordinary Portland Cement (OPC) was partially substituted by UFS at 3, 5, 7 and 10% by weight of binder. It was found that as UFS loadings increase, the flexural, compressive, and tensile strengths increased up to about 5% UFS loading by 12.9, 15.7 and 30.1%, respectively, thereafter, a decrease in these properties was observed. This can be attributed to the pozzolanic effect besides the filling effect of UFS resulting in enhancing the interfacial bonds between the sand grains and hydration products that makes the paste more homogeneous and dense. The effect of both short natural and artificial fiber loadings on the structural performance of compounds was also studied. Loadings of 2%, by weight, of short natural date palm leaves’ midribs fibers (DP) and artificial polypropylene fibers (PP) were added to the 5% UFS blended mix. An increase in both flexural and tensile strength was achieved, while a decrease in the compressive strength was observed.

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Developments in Agricultural Economic Extension Work

Journal of Farm Economics ◽

10.2307/1230380 ◽

1931 ◽

Vol 13 (1) ◽

pp. 87

Author(s):

C. B. Smith

Keyword(s):

Agricultural Economic ◽

Extension Work

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Notes on Extension Work at the Virginia Truck Experiment Station

Journal of Economic Entomology ◽

10.1093/jee/26.3.677 ◽

1933 ◽

Vol 26 (3) ◽

pp. 677-680

Author(s):

Harry G. Walker

Keyword(s):

Experiment Station ◽

Extension Work

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RELATIONSHIP BETWEEN BEHAVIOR OF THE AGRICULTURAL EXTENSION WORKERS AND FARMERS’ SATISFACTION WITH THE EXTENSION SERVICES IN KURA LOCAL GOVERNMENT, KANO STATE, NIGERIA

International Journal of Advanced Academic Research ◽

10.46654/ij.24889849.s61123 ◽

2020 ◽

pp. 43-52

Author(s):

Ali Giginyu ◽

Danladi Bala

Keyword(s):

Local Government ◽

Agricultural Extension ◽

Descriptive Statistics ◽

Sampling Frame ◽

Strong Positive Relationship ◽

Extension Work ◽

Research Findings ◽

The Relationship ◽

Satisfaction With Services ◽

Extension Staff

The study was conducted to determine the attitude of extension staff towards agricultural extension work, examine the nature of the relationship between farmers and agricultural extension staff, examine the scope of farmers’ satisfaction with services provided by extension workers, and determine the challenges affecting effective relationship between farmers and agricultural extension staff in Kura Local Government, Kano State, Nigeria. The population of the study was 2567 registered farmers and 8 qualified Extension workers. Questionnaire was used as an instrument for data collection. 80 respondents were used as the sampling frame. The data were analyzed using descriptive statistics i.e. percentage and frequency count. The research findings revealed that there is strong positive relationship between behavior of Agricultural Extension Workers and farmers satisfaction, the findings of the study indicated, among others, that the challenges affecting relationship between the farmers and the Extension Staff in the study area included staff inadequacy, slow process and the attitude of the Extension Workers toward Agricultural Extension exercise included dedication to duty, positive manners, among the others. Additionally, the findings indicated that the nature of the relationship between the farmers and Agricultural Extension Workers was based on Extension workers farm visit, response to request and enquiries by the farmers and friendliness to the farmers. It is therefore, recommended that the number of Extension workers should be added and welfare package of the Extension Workers should be improved to avoid delay in the process, to mention but a few.

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