Fertilizers Tablets

The NPK fertilizer pill with controlled slow release effect with Mg and trace elements for new plantations of woody plants in forestry, agriculture and landscaping.

WOPROtab 15-16-15 (15g) has been created on the basis of special nutrient combinations. 
It insures a balanced nutrition with the most important main and trace elements of perennial crop plants for a time period up to 3 years. The fertilizer pill will be put directly into the plant hole during the plantation process resp.
can also be placed next to the plant for later fertilization.
Having in mind to achieve a fostering respectively initialization of the micro biological activity in soils, the methylen carbamide chains contain an additional amount of micro biological usable, molecular distributed phosphor, which is exactly defined.
This P2O5 content which is evenly distributed in the product and which is available for the micro- organisms by a special formulation technology in soluble form, amounts to 3 %. 

Nutrient contents / specification:

15% N total nitrogen

1,3% N as carbamide nitrogen

2,4% N as ammonia nitrogen

11,3% N as Ureaform, methylen carbamide urea

16% P2O5 neutral ammonia citrate soluble and water soluble phosphate

11% P2O5 water soluble phosphate

15% K2O water soluble potassium oxide

5% MgO total Magnesium oxide

0,016% B boron

0,05% Cu copper

0,7% Fe iron

0,12% Mn manganese

0,015% Mo molybdenum

0,05% Zn zinc

Product form: pill

Weight: 14,97g- 15,04g

 
Action:WOPROtab 15-16-15 (15g) has both, a starter and a controlled slow release effect.

Starter effect: The pill surface has been enriched with immediately available nutrients for immediate promotion of seedling development. This balanced and fully compatable supply of nutrients is essential during the critical first few weeks of the plants development.

Controlled slow release effect: Special phosphor,- potassium and magnesium long-term formulations guarantee a controlled release of the nutrients with a salt load, which has been reduced to a minimum. The controlled slow release effect provides the nutrients in accordance to the plants growing requirements.

The release time depends on various factors in which soil humidity, soil temperature and the soils microbial activity play a decisive role. The release time will be approx. 2-3 years under Central European soil and climate conditions, and approximately 1 to 1,5 years in warmer regions.

The polymer long terms nitrogen (methylen carbamide) will be converted in the soil nearly exclusively by micro-organisms to a nitrogen which is available to the plant. The soil temperature and the soil humidity primarily determine the biological conversion. This represents resp. enables the direct relationship between nitrogen supply from methylen carbamide and nitrogen demand of the plant. Such a principle allows WOPROtab 15-16-15 (15g) to be an environmentally product which meets all ecological demands.

Thanks to its action this can be shown amongst others things also in its high security of leaching.

Fertilization quantity per 320 kg N / ha
calcium ammonia nitrate: 4 x 80 kg N
Ureaform 1 Rekuform 38-N: 1 x 320 kg N within 24 weeks, absolute and in percent to the fertilization quantity
Source: according to LUFA Speyer (1984/1986)

The long-term nitrogen will be decomposed evenly and constantly over a relatively broad pH area. Even in soils with extreme sour pH conditions the mineralisation of the methylen carbamide chains will not be accelerated a lot. A hydrolytic decomposition under sour and extreme humid conditions does not take place.

Product advantages especially worth mentioning:
The formulation of the nutrients in WOPROtab 15-16-15 (15g) proofed itself in reforestation already with best results in the past.
The loss rate of forest plants which were under nutritioned is drastically reduced.
Only the forest plant will be supplied with nutrients and not weeds in their nearest environment.
The long term nitrogen in WOPROtab 15-16-15 (15g) fosters the microbial activity of the soil
and offers further plant physiological / ecological advantages as e.g.:

N release biological and not chemical- hydrolytic
No impact of the pH value on the nitrification rate
no N release with temperatures under 5°C resp. over 30°C -32°C, i.e. maximal N release with temperatures in which the plant needs most nitrogen
much lower salt load as in fast acting N forms

Application advice
When planting WOPROtab 15-16-15(15g) will be placed about 15 cm sideways of the trunk approx. 15 cm deep.
For later fertilization the pill will be placed next to the trunk, in the root area of the plant and according to the demands pressed slightly with the foot into the soil.
Dosage: per 50 cm height of plants resp. 1 cm trunk diameter 1 fertilizer pill.

Impact of different nitrogen fertilizers on the biological activity of forest soils 

Application 200 kg N/ha
Measuring 7 years after application in O horizon 2-7 cm
Source: changed according to P.J. Martikainen et al., Plant and Soil

Packing:
Sheaf: 7,5 kg bucket
Bucket content: 500 pieces

Precautions: Store in a cool and dry place. The recommendations given here are of a general nature only. Carefully consult the special instructions for use before applying the product.

Recommendations for use:
The fertilizer pill will be placed approx. 10-15 cm laterally to the stem in a depth of approx. planting. 

Rates of use:

Tropical plantation crops (Oil palm, date palm, eucalyptus, citrus, coffee, banana and other fruit trees)	per 30-50 cm of plant height or per 1-1.5 cm of stem diameter	1 fertilizer pill
Viticulture	Per vine seedling	1 fertilizer pill
Fruit growing	Per 30 cm of plant height or per 1 cm of stem diameter	1 fertilizer pill
Forestry	Per 50 cm of plant height or per 1 cm of stem diameter	1 fertilizer pill
Landscaping, ornamental woody plants, shrubs	Slow-growing varieties per 40 cm of plant height Fast-growing varieties per 40 cm of plant height	1 fertilizer pill 2 fertilizer pills