Composition & Role
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NPK ratio: 08 : 04 : 44 (Nitrogen : Phosphorus : Potassium)
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It is a water-soluble / fertigation-grade fertilizer, formulated for application through drip, fertigation systems, or foliar use (as per label)
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Part of the ZETOL SELECT line, which is described as “crop-specific, stage-specific full spectrum fertigation fertilizer” for high yield crops, including grapes .
Intended Use & Benefits (When Used Correctly)
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Targets later growth / fruiting stages, where higher potassium support may be beneficial
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Helps supply readily available K (and complementary N / P) to support fruit development, sugar accumulation, and size/quality in grapes (in appropriate conditions)
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Designed to work in a stage-wise nutrient program (post pruning, bud & bloom, berry development) as part of a full nutrition plan .
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Formulated to be “virtually free of chloride, sodium and other detrimental elements” to reduce risk of salt harm in sensitive vines .
Responsible Claims & Limitations
What it may help with (under ideal conditions):
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Supplying K (and N, P) in soluble form to satisfy crop demand during fruiting / ripening phases
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Contributing to improved fruit size, weight, uniformity, and possibly skin color or sugar accumulation (if other conditions are favorable)
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Supporting yield potential when other factors (water, other nutrients, disease / pest management, soil health) are well managed
What it should not claim:
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It cannot guarantee fixed increases in yield or quality in all conditions (since many external factors are involved)
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It is not a remedy for non-nutrient problems (e.g. fungal disease, pest damage, abiotic stress unrelated to nutrition)
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It should not claim to “boost plant health” in vague or hyperbolic terms without supporting field data
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It cannot replace a balanced fertilization strategy (other nutrients, micronutrients, soil pH, etc.)
Suggested Usage & Safety Guidelines
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Follow the label / technical bulletin for dilution, timing, frequency, and compatibility
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Use in concert with a complete fertilization plan (including micronutrients) and based on regular soil / tissue tests
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Avoid overdosing — too much potassium can create imbalances with other nutrients
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Ensure uniform distribution in irrigation / fertigation systems
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Use personal protective equipment when handling concentrates
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Store in a cool, dry, sealed container to avoid moisture uptake
