Agven aims to provide a complete range of agricultural inputs to the farmers in Pakistan. Following are Agven’s product categories:
Ammonium Sulphate is an inorganic salt with a number of commercial uses. The most common use is as a soil fertilizer. It contains 21% nitrogen and 24% sulphur.
The primary use of ammonium sulphate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth.
It is also used as an agricultural spray adjuvant for water-soluble insecticides, herbicides, and fungicides. There, it functions to bind iron and calcium cations that are present in both well water and plant cells. It is particularly effective as an adjuvant for 2, 4-D (amine), glyphosate, and glufosinate herbicides.
Phosphatic and Potassic fertilisers
This fertilizer contains 18% N and 46% P2O5 , It is a readily water-soluble fertilizer and both nutrients in this source are in plant available form. The material is dark brown, granular and free flowing. It leaves acidic effect in soil after nitrification of ammonium (NH4+). No deleterious impact on soil and crop has been reported due to its use. However, its direct contact with seed and germinating seedlings should be avoided as ammonia may cause injury.
Nutrients include P2O5 (52%) and ammoniacal nitrogen (11%). MAP is often used to add the required proportion of phosphate and nitrogen needed for farming clover, wheat and barley, especially in sandy soil. It is water-soluble and temporarily lowers the soil pH to 3.5 in areas where MAP initially reacts with the soil.
These fertilizers are also called ammonium nitrate phosphates. In Pakistan, it is called nitrophos and contains 23% P2O5 . Half the N is in ammoniacal form and the other half is in nitrate form. The water solubility of phosphorus in 23-23-0 grade is normally more than 70 per cent.
Potassium chloride (commonly referred to as Muriate of Potash or MOP) is the most common potassium source used in agriculture, accounting for about 95% of all potash fertilizers used worldwide.
Its nutrient composition is approximately:
MOP has a high nutrient concentration and is therefore relatively price competitive with other forms of potassium. The chloride content of MOP can also be beneficial where soil chloride is low. Recent research has shown that chloride improves yield by increasing disease resistance in crops. In circumstances where soil or irrigation water chloride levels are very high, the addition of extra chloride with MOP can cause toxicity. However, this is unlikely to be a problem, except in very dry environments, since chloride is readily removed from the soil by leaching.
Water Soluble / Other fertilisers
Technical Grade Monoammonium Phosphate is a water soluble grade of MAP fertiliser. It can be used in both foliar spray and fertigation. The pH of T-MAP is around 4.5 and. The grade is 12% nitrogen : 61 % Phosphate.
Multi-MKP is a fully water-soluble mono-potassium phosphate fertilizer, a highly efficient source of phosphorus and potassium for plants. As a nitrogen-free fertilizer, Multi-MKP is the preferred source of phosphorus and potassium when nitrogen fertilization should be limited. A common case is at early growing season, when phosphorus and potassium are needed at high rates for the establishment of root system. Application of Multi-MKP at the productive stages of sugar-rich fruit crops helps to increase sugar content and to improve the quality of these. Multi-MKP can be applied in combination with other fertilizers to meet crop nutritional needs throughout the growth cycle. Its high purity and water-solubility make Multi-MKP an ideal fertilizer for fertigation and for foliar application. Additionally, Multi-MKP is suitable for preparation of fertilizer blends and production of liquid fertilizers. When applied as foliar spray, Multi-MKP acts as a suppressor of powdery mildew.
Potassium sulphate (K2SO4) is also called sulphate of potash, arcanite, or archaically known as potash of sulphur) is a non-flammable white crystalline salt which is soluble in water. The chemical compound is commonly used in fertilizers, providing both potassium and sulphur.
The mineral form of potassium sulphate, arcanite, is relatively rare. Natural resources of potassium sulphate are minerals abundant in the Stassfurt salt. These are co-crystallization of potassium sulphate and sulphates of magnesium calcium and sodium.
Relevant minerals are:
- Kainite, MgSO4KCl·H2O
- Schönite, K2SO4MgSO4·6H2O
- Leonite, K2SO4MgSO4·4H2O
- Langbeinite, K2Mg2(SO4)3
- Glaserite, K3Na(SO4)2
- Polyhalite, K2SO4MgSO4·2CaSO4·2H2O
From some of these minerals, like kainite, the potassium sulphate can be separated, because the corresponding salt is less soluble in water.
Zinc Sulphate Monohydrate:
Zinc sulphate is the inorganic compound with the formula ZnSO4 as well as any of three hydrates. It was historically known as “white vitriol“. All of the various forms are colorless solids. The heptahydrate is commonly encountered. It is on the World Health Organization’s List of Essential Medicines, a list of the most important medication needed in a basic health system. Zinc sulphate is produced by treating virtually any zinc containing material (metal, minerals, oxides) with sulfuric acid.
Coarse and fine grade with ICUMSA range 45 to 150.
Soybean meal is used in food and animal feeds, principally as a protein supplement, but also as a source of metabolizable energy. Some, but not all, soybean meal is produced from the residue left after oil extraction. (Removal of the oil, which is used mostly in food, but also for industrial oils, soaps and bio-diesel, involves crushing and either pressing or solvent extraction). Some, but not all, soybean meal contains ground soybean hulls. Soybean meal is heat-treated during production, to denature the trypsin inhibitors of soybeans, which would otherwise interfere with protein digestion.