What is straight fertilizer? Straight fertilizer is a fertilizer that will contribute a single nutrient and sometimes two nutrients to the crops. A few examples of straight fertilizer are urea, rock phosphate, ammonia, ammonium sulfate and also muriate of potash.

Straight fertilizers can be used crops but the nutrients that have been supply are still incomplete. This fertilizer usually get mixed with other types of fertilizer to formulate mixed fertilizers and compound fertilizers. The advantage of a straight fertilizer is the low price compared to other fertilizers in the market.

Types of Straight fertilizer

We offer several types of straight fertilizers contributing one of the 3 main nutrients to the crops, which are Nitrogen (N), Phosphorus (P) and Potassium (K) or mostly known as NPK.

1. Nitrogen  – Nitrogen is one of the main elements be found in most commercial fertilizers. Nitrogen is important to the crops because nitrogen is a component in plant cells (chlorophyll) which gives the beautiful green look to plants. The function of Nitrogen function is to supply foods to the plant during photosynthesis and also enhance plant growth. Lack of nitrogen will cause the leaf to become yellowish and cause on the plant to be small.

2. Phosphorus (P) – Phosphorus is the second ingredient in fertilizer. It will act to enhance root growth and flowering. The roots will grow deep and the plant becomes much stronger. Nutrients will also be absorbed effectively by the roots.

3. Potassium (K) – Potassium is also an important component in numerous fertilizers. It is important for flowering and fruiting. Lack of potassium will definitely have an effect on the protein synthesis of plants. Potassium will support chemical process such as carbohydrate, sugar, protein, and enzyme synthesis for plant growth.

4. Magnesium fertilizer (Mg) – Magnesium is an additional nutrient to plants besides the NPK. Magnesium is also important in chlorophyll build up and protoplasm components. Depletion of magnesium will cause the leafs to become yellowish and die.


Fertilizer blending (bulk blending) is a technical process that offers a customised balance by adjusting fertilizer inputs to crop requirements.

In the right proportion, the blend must provide:

  • Major nutrients: nitrogen (N), phosphorus (P), potassium (K);
  • Secondary nutrients: calcium (Ca), sulphur (S), magnesium (Mg), sodium (Na);
  • Micro-nutrients: iron (Fe), manganese (Mn), molybdenum (Mo), copper (Cu), boron (B), zinc (Zn), cobalt (Co).

Bulk blends are mixed fertilizers, prepared without chemical reactions by mixing dry granular fertilizers, in order to obtain a multi-nutrient formulation.

Bulk blending is very popular because the production method allows a flexible combination of nutrients at chosen ratios, and also the use of different types of fertilizers. Bulk blending provides the opportunity to prepare special blends with nutrient ratios to suit the particular farmer’s needs, appropriate to the status of his soils and crops. Matching bulk blends to the specific nutrient requirements of the crop will help to optimize the use of the applied nutrients and protects the environment through balanced nutrition.

Farmers can also mix the various component fertilizers themselves, or purchase blends appropriate to their needs from Ground-Up Fertlizers who operate bulk-blending equipment.

The fertilizers in the mixture must also have compatible chemical and physical properties to enable chemically stable, non-segregating blends.

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