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CONTROLLER
RELEASE GRANULAR FERTILISERS (
POLYMER-COATING )
Raw material: NPK compound fertilizers,urea,K2SO4
,KCl etc.
Coating : POCF ,EVA and resin.
Specification:
Exact released time, the release rate only up to temperature*on
the basis of moisture*.
Perfect released curve: the release of nutrients can meet
up the requirements for all the plants growth.
Enhance the effect of fertilizers, save the nutrition, reduce
the cost.
Friendly-environments, safety to most of plants, suit to tiny
nursery.
Release Mechanism
When the fertilizer comes into contact with moisture in the
growing media (above 25% w/w), the granules begin to absorb
water vapour through microscopic pores in the coating. This
moisture slowly dissolves the nutrient's content, which then
diffuses continuously into the root zone. The rate is controlled
by the soil temperature, which determines the rate of water
vapour penetration and fertilizer diffusion. As temperature
rises, the release rate increases, and vice versa. The level
of water retention, pH values, microbial activity or the exchange
capacity of the soil does not significantly affect the release
rate.
Application:
| FLOWERS |
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Pot
flowers
10g/1kg soils |
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| VEGETABLES |
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Tomatoes
350kg/ha. |
Eggplants
350kg/ha. |
Melons
300kg/ha. |
Potatoes
300kg/ha. |
Cabbages
300kg/ha. |
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| TURFS |
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Golf
courses
3kg/100sq.m |
Sports
2kg/100sq.m |
Landscapes
2.5kg/100sq.m |
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| FRUITS |
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Apples
& Pears
100gm/ea.
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Cherry
50gm/ea. |
Mango
& Avocado
100gm/ea. |
Olives
& Nuts
80gm/ea. |
Peach
& Apricot
80gm/ea. |
Banana,
Paw Paw
100gm/ea. |
Cane
& Bush Berries
30-50gm/ea.
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| FORESTRY |
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Eucalyptus,
Acacia
20-30gm/ea. |
Douglas
Fir
10-20gm/ea. |
Pinus
sp.
10-30gm/ea. |
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| (sq.m=square
meter ea.=each plant ha.= Hectare ) |
Remark:
Rates are based on low application rates of organic material.
In case more than 10-15 tons per ha. Organic material is applied,
the rate can be decreased. In case you choose the lower rate,
you need additional water soluble fertilizers and vice versa.
Exact rates can be determined when a soil sample has been
taken.
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