locally include urea, calcium ammonium nitrate (CAN) and ammonium sulphate (AS)
as straight nitrogen fertilizers. Single superphosphate is the only straight
phosphate fertilizer and nitrophos is NP, a complex fertilizer. All other
fertilizers are imported. Recently the production of SSP and AS has been
stopped due to high cost of production. These were very good fertilizers and in
future, farmers of Pakistan will have no access to them. The grades of
fertilizers available in Pakistan are listed in Table-1
|K2O %||Sulphur %|
Calcium Ammonium Nitrate
Mono Ammonium Phosphate
Sulphate of potash
Muriate of potash
Zinc sulphate (Zn
This is the most
concentrated solid straight nitrogen fertilizer. Its prills or granules are
white in colour and free flowing. Urea is readily soluble in water.
It contains 46 percent
N in amide (NH2) form which is changed to ammonium (NH4+) in the soil.
Urea is a concentrated
straight nitrogenous fertilizer that contains 46% nitrogen, which is a major
plant nutrient. Nitrogen is a vital component of chlorophyll which is necessary
for the photosynthesis process. It is applied to promote vegetative growth of
crops and orchards in splits (basal & top-dressing).
In irrigated crops, Mostly, Urea is applied on the standing crop followed by irrigation to minimize its losses. In rain fed areas, it is often spread just before rain to minimize losses through volatilization process.
“ Urea” produced by is in prilled form and at FFBL in Granular form. Granular Urea has the advantage of ease of application on standing crops because of large size granules. Its efficiency is relatively better in high water demanding crops like rice.
Raw material for
manufacturing of plastics, adhesives and industrial feedstock.
Because of its high
water solubility, it is well suited for use in solution fertilizers or foliar
sprays. Urea though alkaline in initial reaction leaves behind a slightly
acidic effect in the soil after nitrification.
It also incorporates a
small amount of loose acid and sulphur. Its production has been stopped in the
country due to prime cost.
Ammonium sulphate was
once probably the most necessary N-fertilizers however as a result of its low
nutrient content material and relatively prime production value its production
and Daud Khel has been stopped. It incorporates 21% of N and 24% of sulphur.
Ammonium sulphate is a
white crystalline salt however now and again, it would have a grey, brown, red
or yellow tint, which has no effect on its nutrient price. It is soluble in
water and nitrogen on this fertilizer is instantly available to crops. This fertilizer
has an acidifying impact, subsequently, its continuous use may be positive on
comprises 26% N, part of it’s in ammoniacal shape and half in nitrate form. Its
granules and prills are gray or light brown in colour and unfastened flowing.
The complete fertilizer is not soluble in water because of calcium but the
nitrogen phase is readily soluble. By distinctive feature of the calcium on
this fertilizer, it is roughly impartial in its reaction when implemented to
SSP fertilizer used to
be available in powder in addition to in granular shape. Its color could be
gray or brown and it contains 16 to 20% P2O5. The phosphors on this fertilizer
is quickly soluble.
This is a concentrated
phosphorus fertilizer which comprise 46% P2O5 and nearly all of this phosphorus
is in water soluble form.
TSP could be in powder
as well as in granular form but the light gray granulated product has higher
storage and handling properties and is free flowing.
SOP is to be had as a
white crystalline salt or in granular shape and accommodates 48 to 52% K2O and
18% of sulphur. It is solule in water. In Pakistan that is the one potassium
fertilizer which is advisable for all crops but on a global scale its use is
proscribed to positive plants which are delicate to chloride i.e. tobacco,
potato, fruit and veggies.
SOP is an important
source of Potash, a quality nutrient for production of crops, especially fruits
and vegetables. SOP contains 50% K2O in
addition to 18%
Sulfur, which is an
important nutrient especially for oil seed crops because of its role in
increasing the oil contents. It has also an additional advantage of
ameliorating effect on salt-affected soils. Sulfur also helps in containing
spread of fungal or other soil borne diseases. Potash is an important nutrient
for activation of enzymes in the plant body, develops resistance against pests,
diseases, stresses like water/frost injury and also helps in increasing sugar /
starch contents in plants. It also improves quality and taste of vegetables /
SOP is one of the finest quality products with
less than 1% Chloride content being imported from European origin and preferred
for the high value Tobacco crop.
Occasionally used in
manufacturing of glass.
comprises 18% N and 46% P2O5 , It is a readily water soluble fertilizer and
each vitamins on this source are in plant available shape. The subject material
is gentle brown, granular and loose flowing.
(DAP) belongs to a series of water-soluble ammonium phosphates that is produced
through a reaction of ammonia and phosphoric acid. DAP is the most concentrated
phosphatic fertilizer containing 46% P2O5 and 18% N. It is recommended for all
crops as basal fertilizer to be applied at the time of sowing for better root
proliferation and inducing energy reactions in the plants. The solubility of
DAP is more than 90%, which is the highest among the phosphatic fertilizers
available in the Country; due to which it can also be applied post planting
through fertigation. Further, on account of its nitrogen content; upon
completion of nitrification process, the ultimate reaction of DAP is acidic.
Fire retardant used in
commercial firefighting products. Other uses are as metal finisher, yeast
nutrient and sugar purifier.
It leaves acidic effect
in soil after nitrification of ammonium (NH4+). No deleterious affect on soil
and crop has been reported because of its use. However, its direct contact with
seed and germinating seedlings will have to be avoided as ammonia might cause
These fertilizers are
also called ammonium nitrate phosphates. In Pakistan, it is known as nitrophos
and contains 23% and 23% P2O5 . Half the N is in ammoniacal form and the other
part is in nitrate shape.
The water solubility of
phosphorus in 23-23-zero grade is generally greater than 70 per cent.
Zinc is a micronutrient
fertilizer in the form of Zinc Sulphate Monohydrate (27%) in 3 Kg packing. It
is an essential micronutrient required for plant nutrition, which plays a vital
role in a number of growth processes especially in chlorophyll synthesis,
proteins, activation of enzymes and plays important part in hormonal activity
particularly auxins. Zinc deficiency is widespread throughout Pakistan and zinc
deficiency in soil is translating as deficient element in human diet and
livestock feed. In crops, its deficiency results in growth inhibition, leaf
yellowing, less number of leaves and low crop yields. The zinc deficiency is
causing different diseases in humans and livestock. Keeping in view the wide
spread deficiency of zinc in Pakistan, is providing high quality Zinc. It is highly water soluble and can also
be used as fertigation i.e. application with irrigation. It can be mixed with
other fertilizers for broadcast in the field.
Boron is a
micronutrient fertilizer in the form of Di-Sodium Tetra Borate Decahydrate in 3
Kg packing. It is an essential micronutrient required for plant nutrition,
which plays a vital role in a number of growth processes especially new cell
development, fruit/seed setting, translocation of sugars, starches, nitrogen
and phosphorous, nodule formation in legumes and regulation of carbohydrate
metabolism. Boron deficiency appears in youngest leaves as wrinkled, often
thicker and of a darkish blue green color. As deficiency progresses, the
terminal growing point dies and flowers & fruits formation is restricted or
inhibited; fruits remain very small and of poor quality. Keeping in view
increasing boron deficiency in Pakistan soils, is providing superior quality Boron containing 10.5% Boron (Borax). It is
soluble in water and readily available to plants. It is used as soil
application alone or by mixing with other fertilizers.
(commonly referred as Muriate of Potash or MOP) is the most common potassium
source used in agriculture, accounting for more than 90% of all potash
fertilizers used worldwide. MOP contains
60% K2O and is used mainly for fertilizing sugarcane, maize, fruit trees,
vegetables and other field crops except tobacco.
Used in Medicine,
scientific applications, food processing etc.