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Scotts Europe |
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Africa |
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Middle East |
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North and South America |
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Pacific Rim |
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Australia |
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Asia |
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Cutflowers |
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Potted plants |
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Ornamental trees and shrubs |
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Fruits and Vegetables |
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Plantations and Forestry |
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1987-R&D building up expertise on palms |
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First trials in Oil Palm nursery (16-8-9 + MgO) |
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ONG trial |
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Field longevity test |
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First trials for 1e year field planting (12-9-17
+ MgO) |
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Introduction of Poly-S |
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Trials with 15-8-17 + MgO |
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1989 |
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1992 |
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1993 |
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1994 |
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1994 |
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1995 |
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Poly-S |
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Moderate influence of temperature on release |
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Start release high |
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Urea granules |
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Resin
coating |
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Temperature defines release |
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Start release low |
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NPK granules |
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Good quality particles |
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Better to coat |
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Better quality coating |
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More choice in raw material |
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Better nutrient mixture |
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Less segregation |
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Poor quality particles |
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Difficult to coat |
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Low quality coating |
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Few raw materials |
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Poor nutrient mixture |
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More segregation |
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Particle size |
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Particle weight (bulk density) |
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Particle shape |
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Particle sphericity |
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Particle smoothiness |
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Way of mixing |
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Visual method |
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View, picture |
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Picking particles |
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Chemical analyses of samples |
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