Health and Safety
What you must understand
Farm safety covers people, animals and chemicals. Know the main hazards: machinery (PTO shafts, moving parts), sharp tools, lifting injuries, slips, dust, noise, zoonotic disease, and agrochemicals. Learn safe chemical practice: read the label, wear correct PPE (gloves, boots, overalls, mask, eye protection), mix in a ventilated area, never eat or drink while spraying, observe the pre-harvest interval, store locked away from food and children, and dispose of empty containers safely. Know first aid basics: wash skin with plenty of water, flush eyes, move a casualty to fresh air, and seek medical help. Understand animal handling safety - crush, head bail, restraint, and the risk of kicks. Learn the meaning of a hazard, a risk, and a control measure, and the principle of keeping the workplace tidy.
Traps in questions
- Thinking a mask alone is enough; skin and eye protection also matter.
- Forgetting the pre-harvest interval - the waiting period between spraying and harvest.
- Reusing pesticide containers for drinking water - never do this.
- Assuming PPE is optional in hot weather; heat is not a reason to skip protection.
- Confusing hazard (the thing that can harm) with risk (the chance it will).
Worked example
A label states a 14-day pre-harvest interval and the crop will be picked in 10 days. Spraying now would leave residue, so either choose a product with a shorter interval or delay harvest to day 14. Rule of thumb: count the interval from the day of spraying, and record the spray date on the farm record sheet.
Sustainable Agriculture and Environmental Conservation
What you must understand
Sustainability means meeting present needs without reducing the resource base for the future. Know the practices: crop rotation, intercropping, cover cropping, green manuring, composting, mulching, conservation tillage, agroforestry, terracing, water harvesting and integrated pest management (IPM). Understand IPM as a hierarchy - cultural, mechanical, biological and chemical control - with chemicals as a last resort. Learn the causes of soil degradation, deforestation, overgrazing and water pollution, and the value of biodiversity, pollinators and natural enemies. Know the difference between organic and conventional systems, and the meaning of carrying capacity in grazing. Understand how farming affects water bodies through runoff and how buffer strips and riparian zones reduce damage.
Traps in questions
- Thinking IPM means no chemicals at all; it means chemicals used wisely as a last resort.
- Confusing composting (aerobic, managed) with simply dumping waste.
- Assuming organic always yields more; it often yields less but may earn a premium.
- Forgetting that overgrazing causes both erosion and reduced pasture recovery.
- Ignoring pollinators when planning pest control.
Worked example
A field loses topsoil on a 10% slope. Options: plant a cover crop, plough across the slope (contour), and leave a grass buffer strip at the bottom. Rule of thumb: slow the water, cover the soil, and keep roots in the ground - these three reduce erosion on almost any slope.