AGE 124 — Farm Technology: Lecture Note

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AGE la-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Course code: AGE 124 Course title: Farm Technology Course credit load: 2 Units Series 1: Concepts and Need for Farm Technology and Mechanisation • Part 1.1: Introduction to Farm Technology o Sub Part 1.1.1: Definition and scope of farm technology o Sub Part 1.1.2: Historical development of farm technology o Sub Part 1.1.3: Components and classification of farm technology • Part 1.2: Need and Justification for Farm Mechanisation o Sub Part 1.2.1: Arguments for agricultural mechanisation o Sub Part 1.2.2: Constraints to mechanisation in Nigeria o Sub Part 1.2.3: Socio-economic and environmental implications • Part 1.3: Farm Power: Concepts and Sources o Sub Part 1.3.1: Definition and classification of farm power o Sub Part 1.3.2: Human and animal power in agriculture o Sub Part 1.3.3: Mechanical and alternative power sources • Part 1.4: ICT in Agriculture o Sub Part 1.4.1: Overview of ICT applications in agriculture o Sub Part 1.4.2: Precision agriculture and digital tools o Sub Part 1.4.3: ICT for farm management and decision support

AGE la-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Introduction Agriculture in the twenty-first century is increasingly technology-driven. From the hand hoe used by subsistence farmers to satellite-guided precision tractors, the tools and systems that farmers use to produce food have evolved continuously in response to the need to grow more food on limited land with fewer workers. Understanding the principles, history, and rationale of farm technology and mechanisation is the starting point for any agriculture student who intends to practise, teach, or manage in the modern agricultural sector. The aim of this Series is to introduce you to the concepts, need, and justification for farm technology and mechanisation, the sources and classification of farm power, and the role of information and communications technology in supporting agricultural production and management decisions. We shall commence this Series by defining farm technology and tracing its development. Next, we will examine the arguments for mechanisation and the constraints that limit its adoption in Nigeria. Following that, we will survey the sources of farm power from human effort to electricity and solar energy. Finally, we will wrap up with an introduction to ICT applications in agriculture and precision farming. Series Learning Outcomes Upon completing this Series, you should be able to: • SLO 1.1 define farm technology and describe its scope and components (Linked to Part 1.1), • SLO 1.2 trace the historical development of farm technology from manual tools to modern mechanisation (Linked to Part 1.1), • SLO 1.3 explain the need and justification for agricultural mechanisation (Linked to Part 1.2), • SLO 1.4 identify the constraints to mechanisation in Nigeria and describe their socio-economic implications (Linked to Part 1.2), • SLO 1.5 define farm power and classify its sources (Linked to Part 1.3),

AGE la-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS • SLO 1.6 describe human and animal power in agriculture and explain their role and limitations (Linked to Part 1.3), • SLO 1.7 describe mechanical and alternative farm power sources and explain their applications (Linked to Part 1.3), • SLO 1.8 identify the main ICT applications in agriculture (Linked to Part 1.4), and • SLO 1.9 explain the principles of precision agriculture and describe digital tools used for farm management and decision support (Linked to Part 1.4). 1.1 Introduction to Farm Technology 1.1.1 Definition and scope of farm technology Farm technology refers to the application of scientific and engineering knowledge to the design, development, and operation of tools, machines, systems, and processes used in agricultural production. Its scope covers all the technical inputs and systems that enable land preparation, planting, crop protection, harvesting, post-harvest handling, animal production, and farm management to be performed more efficiently, safely, and at greater scale than would be possible with unaided human effort alone. The scope of farm technology therefore extends from the simplest hand tools (hoes, cutlasses, and hand sprayers) through animal-drawn implements to motorised machinery, electronic sensing systems, drones, and computer-based decision support tools. Farm technology also encompasses the supporting knowledge and skills required to select, operate, maintain, and repair agricultural equipment. For agriculture students in Nigeria, understanding farm technology is essential for advising farmers on equipment selection, troubleshooting field problems, and contributing to the mechanisation of Nigerian agriculture. Fill in the blank: Farm technology refers to the application of scientific and engineering knowledge to the design and operation of tools, machines, and systems used in ________ production.

AGE la-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Figure 1.1: Diagram showing the scope of farm technology from hand tools through animal-drawn implements to motorised machinery and digital systems 1.1.2 Historical development of farm technology The history of farm technology parallels the broader history of human civilisation. The earliest agricultural tools were simple digging sticks and stone hoes used to break the soil surface. The domestication of draft animals (oxen, horses, donkeys) around 3,000 BCE enabled the development of the animal-drawn plough, the first major advance in agricultural mechanisation. The iron age brought stronger, more durable implements. The eighteenth and nineteenth centuries saw the invention of the seed drill (Jethro Tull, 1701), mechanical threshers, and eventually steam-powered farm machinery. The twentieth century was the era of the internal combustion engine tractor, which replaced animal power on large farms worldwide from the 1920s onwards. Green Revolution technologies of the 1960s and 1970s combined improved seed varieties with mechanised irrigation, mechanised tillage, and fertiliser application to dramatically increase global food production. From the 1980s, electronic sensors, GPS, and computers began to be integrated into farm

AGE la-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS machinery, leading to the precision agriculture revolution. In Nigeria, the history of farm technology is characterised by a dominant smallholder sector still reliant on hand tools, alongside government-supported mechanisation programmes that have had mixed success. Fill in the blank: The animal-drawn ________ was the first major advance in agricultural mechanisation, developed after the domestication of draft animals around 3,000 BCE. tools to modern precision agriculture 1.1.3 Components and classification of farm technology Farm technology can be classified into four main categories based on the nature and complexity of the technology involved. Hand tools (hoes, cutlasses, rakes, hand sprayers) are operated entirely by human muscular effort; they are low-cost, widely available, and suitable for small plots but are limited in productivity. Animal-drawn implements (ploughs, harrows, ridgers, seeders, carts) use draft animal power multiplied by simple mechanical design; they increase productivity significantly over hand tools at modest cost. Motorised equipment (tractors, power tillers, combine harvesters, irrigation pumps) uses internal combustion engines or electric motors to power agricultural operations at high throughput and large scale. Precision and digital technology (GPS-guided tractors, drone sprayers, soil sensors, farm management software) integrates electronics, computing, and data analytics to optimise the application of inputs and the management of farm operations. Each category is appropriate for a different scale of operation, level of capital investment, and farming system context. Fill in the blank: Farm technology is classified into four categories: hand tools, animal-drawn implements, ________ equipment, and precision and digital technology. Category Examples Scale of Use Capital Requirement Hand tools Hoe, cutlass, hand fork, watering can Small-scale, subsistence farming Very low — affordable for individual farmers

AGE la-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Animal-drawn implements Plough, harrow, ridger, cart Medium-scale farming in rural areas Low to moderate — cost of animals and implements Motorised equipment Tractors, power tillers, harvesters, irrigation pumps Large-scale and commercial farms High — requires significant investment and maintenance Precision/digital technology Drones, GPS-guided tractors, soil sensors, farm management apps Commercial and modern farms Very high — advanced technology, training, and infrastructure Table 1.1: Classification of farm technology by category, examples, scale, and capital requirement Pilot questions 1.1 1. Define farm technology and state three activities it covers. 2. Name the first major advance in agricultural mechanisation and explain what made it significant. 3. List the four categories of farm technology and give two examples of each. 4. Explain why understanding farm technology is important for an agriculture student in Nigeria. 5. What development from the 1980s onwards led to the precision agriculture revolution? 1.2 Need and Justification for Farm Mechanisation 1.2.1 Arguments for agricultural mechanisation Agricultural mechanisation is justified by the need to address several interrelated challenges in food production. Labour shortage and timeliness — mechanisation enables farm operations to be completed within the narrow time windows dictated by rainfall seasons and crop growth stages, even when rural labour is scarce or expensive. Scale and productivity — machines allow a single operator to cultivate far more land per day than is possible with hand tools, increasing the area that can be farmed and the quantity of food that can be produced.

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