Testing for Answers: Why Smart Farmers Measure Before They Manage
When a season starts well, it’s often because someone tested first. In farming, guessing is expensive; testing is insurance. Every sample you send off tells a story about potential yield, quality, and risk. Here’s how a few simple tests can improve your decisions before the first pass of the seeder.
1. Seed Testing: Germination, Vigor, and Thousand Seed Weight
Seed is the foundation of your crop. Laboratory germination and vigour tests show how well a seed lot will perform under stress—cold soils, dry starts, or delayed emergence. A 95% germination result means little if vigour is poor; strong vigour indicates seedlings will push through less-than-ideal conditions.
Thousand seed weight (TSW) is another simple but useful measure—it lets you calculate sowing rates accurately for optimal plant populations. A few grams difference can swing seeding rates by tens of kilograms per hectare. Precision here saves both seed and yield potential.
2. Nutrient Testing in Seed
Seed isn’t just a carrier of genetics—it’s also a nutrient package for the emerging plant. Testing for phosphorus, nitrogen, and micronutrients like zinc reveals how much energy the seed itself contributes to establishment. Low nutrient reserves can limit early root growth, even in good soils. Knowing this helps you fine-tune starter fertiliser blends and rates for the future and to see if micronutrient seed treatments or early in-crop applications are necessary.
For more information: https://smartfertilisers.com.au/what-grain-testing-at-harvest-can-tell-you/
3. Soil Testing: Benchmarking the Paddock
Soil tests provide the nutrient map of your farm—levels of nitrogen, phosphorus, potassium, sulphur, and micronutrients, plus pH and organic carbon. Regular soil testing tracks nutrient drawdown and identifies trends over time. One set of numbers can prevent thousands of dollars in wasted fertiliser or yield loss from hidden deficiencies.
Sampling consistency matters: same depth, same time of year, same lab. Same point or transect. It’s not just data—it’s your paddock's DNA.
4. Weed Seed Resistance Testing
Weed seed testing is now standard practice for many growers serious about long-term herbicide performance. Collecting seed from survivors after harvest and sending it for resistance screening tells you which actives are failing before the next season’s plan is locked in. It’s far cheaper to swap a mode of action early than to let resistant ryegrass or fleabane set seed across a paddock.
For more information: https://www.plantscienceconsulting.com.au/weed-resistance-seed-test/?doing_wp_cron=1762836976.8061769008636474609375
5. Crop Seed Herbicide Tolerance Testing
Retained seed on farm or sourced seed from a neighbour. Are you certain it is the herbicide-tolerant crop seed you want? Sowing the wrong seed in the wrong paddock can cost you big time. A test is available to verify the herbicide tolerance of the seed. Herbicide systems such as IMI, Triazine, Aggressor AX, Glyphosate & Metribuzin.
For more information: https://www.plantscienceconsulting.com.au/clearfieldtriazine-test/?doing_wp_cron=1762837018.6081659793853759765625
In Short: Measure, Don’t Assume
Testing turns uncertainty into action. Seed, soil, and weed samples are small investments that pay you back through better establishment, targeted nutrition, and sustained weed control. Most of the tests cost you less than a tonne of grain.