Growers
Understand faster why growth, quality or resilience is falling behind.
Independent plant health expertise
Plant Quality
Solutions
Stronger plants. Smarter cultivation.
Understand what your crop is telling you. PQS connects plant physiology, independent analysis and practical advice for growers, inspection bodies and businesses.
Analysis
Stress, root activity, Brix and growth patterns
Advice
From observation to practical cultivation strategy
Assurance
Support for protocols, audits and certification
For whom
Three audiences, one expert foundation.
Petra combines hands-on cultivation knowledge with a systematic way of assessing plant signals. That makes her advice relevant on the greenhouse floor, within inspection frameworks and at company level.
Inspection bodies
Independent plant health expertise for audits, inspections and risk assessment.
Companies
Validation, training and quality programs for agrifood and input companies.
Grower trajectory
From crop signal to targeted action.
Measurements and field observations are translated into a clear diagnosis: stress factors, uptake issues, root development, plant resilience and practical next steps.
- Brix and plant sap analysis as fast indicators
- Root-cause advice for recurring problems
- Cultivation support with measurable improvement points
Recognizable plant questions
What is your crop telling you?
Discolouration, slow growth or crop loss can have more than one cause. PQS examines plant condition, growing conditions and risks together.
The crop is falling behind, but the cause is unclear.
Stress, uptake, root activity and climate are assessed together instead of as separate symptoms.
There is discussion about quality, vitality or risk.
An independent perspective helps objectify observations and substantiate next steps.
A product or approach needs practical validation.
Plant response is translated into useful insights for application, claims and customer advice.
Sustainable plants
Stronger plants through physiology, Brix and stress balance.
Sustainable plants is about crops that use energy more efficiently, show stress earlier and recover better. PQS translates signals from leaves, growth, Brix and roots into more sustainable cultivation choices.
Brix as a practical signal for energy, stress and resilience.
Recognize early when climate, roots, pathogens or timing put pressure on the crop.
Brand-independent assessment of crop stage, application and plant response.
Expertise
Practical support for your crop.
Crop assessment
Understand plant health, Brix trends and bottlenecks in growth and uptake.
Explore the approachBiostimulant programmes
A brand-neutral programme aligned with your crop, location and growth stage.
Explore the approachSeasonal guidance
From periodic consultations to intensive support on site and online.
Explore the approachRoot cause analysis
Investigate the underlying cause of crop loss, stress or unexplained symptoms.
Explore the approachTraining & masterclasses
Practical training for growers, advisers and teams, on site, online or tailored to your needs.
Explore the approachQuality management
Practical systems that make plant health measurable and manageable.
Explore the approachCertification support
Support for quality programmes focused on plant health and propagation.
Explore the approachMethod
A clear method for complex plant questions.
The strength lies in the combination: observing the crop, measuring what matters, recognizing patterns and translating them into decisions that teams can act on.
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01
Intake & context
Crop phase, history, symptoms, goals and risks are made clear.
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02
Observation & measurement
Crop image, root zone, Brix, stress indicators and quality signals are combined.
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03
Root cause analysis
The main causes, choices and risks are made visible.
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04
Action & assurance
Advice is translated into cultivation steps, protocols, training or quality agreements.
Proof and trust
Credibility comes from practice, method and transferable knowledge.
Advice is not driven by product sales, but by what the crop and context reveal.
Analysis and advice can be translated into protocols, training and quality documentation.
The outcome is not a report to file away, but an approach teams can apply.
Plant Health Academy
Knowledge that helps teams observe better.
Training and masterclasses make plant health concrete for cultivation teams, auditors, advisers and commercial teams. The content is rooted in daily practice, not theory alone.
Plan a training
The specialist behind PQS
Curious about plants. Focused on the cause.
Petra connects plant physiology with everyday cultivation. She investigates how stress, roots, uptake and growing conditions interact, turning those insights into an approach that fits your crop or organisation.
Independent and brand-neutral, with attention to both the plant and the people working with it.
Petra is also CSO at Sensaplant, where she works on plant physiology, scientific validation and translating measurement data into useful cultivation information.
Petra at Sensaplant ↗Petra van der Goes
Meet PetraPQS × Sensaplant
Connecting plant knowledge and insight.
PQS brings independent plant health expertise. At Sensaplant, Petra helps turn measurements into useful cultivation information. Explore Cropcheck by Sensaplant.
Intake
Bring your plant question to an independent specialist.
Briefly describe what is happening: crop, phase, symptoms, urgency and desired outcome. Petra can then assess the best first step.
info@plantqualitysolutions.com +31 (0)6 249 30 113 5692 VK Son, The Netherlands