The Complete, Balanced and Enriched Prescriptive Fertilizer

For Palms Grown On Peat Soils.


PEAT-Kay Plus is one of the leading prescriptive fertilizer that helped many Large Oil Palm growers maintain their peat. After years of Research & development, PEAT-Kay Plus have been able to completely improve Oil Palm yields and promote healthy plantation.

Applying 8kg/palm/yr of PEAT-Kay Plus (7-4-34+B+Cu+Zn) is comparable to applying: –

UREA 1.22  kg 0.56 kg N
GRP  1.07 kg 0.32 kg P2O5
MOP  4.53 kg 2.72 kg Ksub>2O
BORATE  0.1 kg 0.048 kg B2O3
CuSO4  0.1 kg 0.032CuO
ZnSO4  0.1 kg  0.028ZnO

What is Peat?

PROBLEMATIC SOILS. Often described as a “problem soil”, peat soil consist of partly decomposed biomass and develop in depressions or wet coastal areas when the rate of biomass production from adapted vegetation is greater than the rate of decomposition. This is due to the presence of a high water table that prevents aerobic decomposition of plant debris… Andriesse/Driessen 1988/1978.


A Principle That Governs All Agricultural Production

(1807-1882)Father Of The Fertilizer Industry

The law states the growth of plants is limited by the plant nutrient element present in the smallest quantity, all others being present in adequate amounts.

Topogenous (Shallow Peat) Ombrogenous (Deep Peat)
Depth- 50-150cm Depth- more than 150cm
Formed in flood plains Usually develop in shallow
Less Acidic Very acidic & low fertility status
Dependent on nutrient
More fertile-enriched by influx of nutrients from through flow, deposition & sendimentation during temporary flooding Dependent on nutrient
deposition from the atmosphere
contained in rain & dust

Properties Of Peat

Mostly classified as Tropofibrists & Tropohemists in the USDA soil order of Histosols…in contrast with mineral soils are characterized by:

– Very low bulk density.
– Low nutrient content, except for nitrogen(N).
– Poor nutrient retention, especially potassium(K).
– Rapid fixation of water soluble copper (Cu) and Zinc(Zn) compound by humic & fulvic acids and polyphenolic compounds
– Low or very low pH (2.8 – 4.5).
– Large content of organic matter & large water holding capacity

76% of the world’s tropical peat is found in Malaysia & Indonesia.

Development Of Peat

Today, with the availability of modern equipment, knowledge, experience in peat management and the understanding of nutrition in oil palm have now made the development of peat feasible.


Palm Physiological Development Cycle

It is important to understand the physiological development of the palm. Unlike other crops, different physiological development are happening simultaneously all the time.

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Apart from adequate drainage and maintenance of water table, land preparation, soil compaction, higher planting density, nutrient replenishment is one main factor for achieving optimum yields in peat soils. As palms develop, nutrients are used for vegetative growth, immobilized in trunks, foliage, male flowers and weeds. All these will be recycled back to the soil.

Harvesting or removal of bunches will result in a nett loss from the system. Therefore a correct amount of replenishment is needed to maintain the development and production of the palms

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