50 science fair project ideas related to natural farming

Here are science fair project ideas related to natural farming that explore organic techniques, sustainable agriculture, and eco-friendly practices.

These projects promote awareness of farming without chemical fertilizers, pesticides, or genetically modified organisms (GMOs).

Soil Health and Fertility Projects

organic-farming
organic-farming
  1. How Do Cover Crops Improve Soil Quality?
    – Test the impact of planting legumes, clover, or rye on soil nutrients.
  2. Effect of Organic Compost vs. Chemical Fertilizer on Plant Growth
    – Compare crop yields using homemade compost and synthetic fertilizers.
  3. How Do Earthworms Affect Soil Structure and Plant Growth?
    – Study how earthworms improve soil aeration and nutrient cycling.
  4. Does Mulching Reduce Soil Erosion?
    – Test how different mulch types (straw, leaves, bark) prevent erosion.
  5. Can Natural Manures Improve Soil pH?
    – Use organic manure like cow dung or poultry litter to balance soil acidity.
  6. Effect of Crop Rotation on Soil Fertility
    – Grow different crops in cycles and measure changes in soil nutrients.
  7. How Does Vermicomposting Enhance Soil Health?
    – Study how worms break down waste and produce nutrient-rich compost.
  8. Comparing Plant Growth in Organic and Conventional Farming Soil
    – Use soil samples from natural and conventional farms to grow plants.
  9. Does Biochar Improve Soil Moisture Retention?
    – Test biochar’s ability to hold water in sandy or dry soils.
  10. Effect of Organic Liquid Fertilizers (Compost Tea) on Plant Growth
    – Measure plant height and yield with different natural liquid fertilizers.

Natural Pest Control Projects

  1. Effectiveness of Neem Oil as an Organic Pesticide
    – Test neem oil against chemical pesticides on aphid-infested plants.
  2. How Does Companion Planting Repel Pests?
    – Experiment with companion plants like marigold or basil to reduce pests.
  3. Which Natural Insect Repellents Work Best?
    – Compare garlic spray, neem, and vinegar against insect infestations.
  4. Does Intercropping Reduce Pest Attacks?
    – Test how planting beans with corn affects pest populations.
  5. How Does Diatomaceous Earth Affect Insect Populations?
    – Measure the reduction in pests after applying diatomaceous earth.
  6. Do Beneficial Insects Control Pests?
    – Release ladybugs or lacewings and track their impact on pest numbers.
  7. Can Natural Traps Help Control Flying Insects?
    – Use sticky traps or vinegar bowls to catch and count flies or moths.
  8. Does Plant Diversity Reduce Pest Infestations?
    – Compare pest populations in monoculture and polyculture plots.
  9. Testing Natural Fungicides for Disease Control
    – Use baking soda, milk, and vinegar sprays to fight plant fungi.
  10. How Does Crop Rotation Prevent Pest Build-Up?
    – Study if rotating crops reduces pest populations over time.

Water Conservation in Natural Farming

  1. Can Drip Irrigation Save More Water than Sprinklers?
    – Compare water usage and crop yield between two irrigation methods.
  2. How Effective is Mulching in Reducing Water Use?
    – Measure soil moisture under mulched vs. non-mulched plants.
  3. Design a Rainwater Harvesting System for a Farm
    – Build a model to demonstrate water collection and reuse.
  4. Which Soil Amendment Retains Water the Longest?
    – Test soil with compost, clay, and manure for moisture retention.
  5. Does Hydrogel Increase Water Availability for Plants?
    – Measure plant growth with and without hydrogel in soil.
  6. How Does No-Till Farming Impact Water Retention?
    – Compare water levels in tilled vs. no-till soil.
  7. Testing the Effect of Organic Mulch on Soil Temperature
    – Measure soil temperature under different types of organic mulch.
  8. Does the Use of Cover Crops Reduce Water Needs?
    – Study the impact of green cover crops on water conservation.
  9. How Does Shade Cloth Affect Plant Water Needs?
    – Experiment with shaded vs. unshaded plots to see water usage.
  10. Can Greywater Be Used Safely in Farming?
    – Test plant growth using greywater and regular tap water.

Seed Quality and Plant Growth Projects

  1. Do Heirloom Seeds Grow Better than Hybrid Seeds?
    – Compare plant health and yield from both types of seeds.
  2. How Does Seed Soaking in Organic Fertilizers Improve Germination?
    – Test germination rates after soaking seeds in compost tea or cow urine.
  3. Does Moon Phase Planting Affect Seed Germination?
    – Plant seeds during different moon phases and compare results.
  4. Testing the Effect of Biodynamic Farming Preparations
    – Use biodynamic sprays and observe their effect on crop health.
  5. How Does Seed Saving Impact Crop Yield Over Generations?
    – Study the yield of plants grown from saved seeds.
  6. Do Native Plants Grow Better without Chemical Inputs?
    – Test the growth of native plants using organic farming methods.
  7. Effect of Seed Spacing on Crop Yield
    – Experiment with different spacing distances to find the optimal one.
  8. Testing Germination Rates of Organic vs. Non-Organic Seeds
    – Compare germination between certified organic and regular seeds.
  9. How Does Soil Type Affect Seed Germination?
    – Plant seeds in different soil types (clay, loam, sand) and observe growth.
  10. Does the Age of a Seed Impact Its Germination Rate?
    – Use seeds of different ages and record their germination success.

Climate Change and Sustainability Projects

How Does Organic Farming Help Reduce Carbon Emissions?
– Compare carbon emissions between organic and chemical farming.

  1. Can Cover Crops Sequester Carbon in Soil?
    – Measure soil carbon levels before and after planting cover crops.
  2. Effect of Natural Farming on Biodiversity
    – Compare biodiversity in organic and conventional farming plots.
  3. How Does No-Till Farming Impact Soil Microorganisms?
    – Study microbial activity in tilled vs. no-till soil samples.
  4. Does Composting Reduce Methane Emissions from Waste?
    – Measure methane emissions from food waste with and without composting.
  5. How Does Organic Farming Impact Pollinator Populations?
    – Observe bee or butterfly activity in natural vs. chemical-treated farms.
  6. Can Agroforestry Reduce the Impact of Drought?
    – Plant trees with crops and measure drought resistance.
  7. How Does Urban Farming Improve Air Quality?
    – Monitor air quality near urban farms and compare with non-farm areas.
  8. Do Organic Fertilizers Reduce Greenhouse Gas Emissions?
    – Measure the emissions from soil treated with natural vs. synthetic fertilizers.
  9. How Does Natural Farming Improve Soil Carbon Sequestration?
    – Study how organic practices increase soil’s ability to store carbon.

Leave a Comment