Complete Formulations

Supplies the necessary high phosphorus levels that young plants require for rapid root growth. AAT ProHort 10-52-10 Plant Starter is a safe fertilizer with a low salt index and contains no sulphates or harmful chlorides which can be particularly injurious to young plants. It is widely used by tomato and cucumber growers for transplanting and also during the early stages of crop development. This formulation can also be used on greenhouse crops when a high phosphorus fertilizer is required. This is just a test.

A water soluble turf fertilizer that is suitable for greens, tees, and fairways. Features a one to one ratio of nitrogen to potassium for growth, colour and increased stress tolerance with zero phosphorous. The high sulphur content increases the soil acidification properties of this fertilizer. Added micronutrients also help improve turf growth, health, and colour. Offers excellent coverage and control of nutrients when using low nutrient application rates and excellent turf safety when used correctly. This is not a test.

12-0-44 is water soluble potassium nitrate with the AAT ProHort chelated micronutrient complex added to it. The nitrogen in this formula is totally in the nitrate form making it a good fertilizer to use during periods of low light. In the winter and for finishing crops 12-0-44 produces more uniform plant growth. This results in better colour and improved plant tone. It is a highly recommended fertilizer for Easter Lily culture. The high potassium content and absence of phosphorus make 12-0-44 and excellent crop finisher for Chrysanthemums and Poinsettias. This would also be a good choice of fertilizer in situations where sufficient phosphorus has already been incorporated into the soil. Potassium nitrate is frequently alternated with other formulations for use on greenhouse tomatoes and cucumbers.

A water soluble crystal formulation designed specifically for plug production. Current research has shown that a small amount phosphorus as well as increased levels of calcium and magnesium are desirable for plug production. This formula is a complete fertilizer for plugs and includes nitrogen, phosphorus, potassium, calcium and magnesium. AAT ProHort 12-2-14 crystal plug fertilizer can be used as a constant feed for all types of plants grown in soilless mixes. features: no urea and over 97% of the nitrogen in the nitrate form. The ideal ratio of calcium to magnesium of 2:1 a complete macronutrient package which includes molybdenum complete solubility since 12-2-14 contain sufficient levels of calcium and magnesium. It is not necessary to rotate with any other fertilizers unless soil analyses indicate otherwise.

AAT ProHort 15-0-15 cal-pot special is a completely water soluble "prilled" formulation with a very high calcium level. This formula has over 90% of its nitrogen in the Nitrate form, there is no Urea. It is completely water soluble. It is ready-made Calcium Nitrate/Potassium nitrate mixture. All major and micronutrients are in "prilled" form so segregation in the bag is not a problem. This formula is very effective under low light conditions, especially November, December and January. This formula can be used to raise media pH because it has an alkaline soil reaction.

15-15-18 Soilless Feed. Specially designed to meet the needs of growers who are now using soilless growing media. AAT ProHort 15-15-18 Soilless Feed contains 0.015% Mo and 0.15% Mg as well as the other five micronutrients. This total formulation will supply sufficient nutrients to overcome most deficiency problems normally associated with soilless mixes. Over 55% of the nitrogen in this formula is in the nitrate form which is preferable for use with soilless mixes. It is recommended for crops which require a high nitrate nitrogen content such as Bedding Plants, Easter Lilies, Gloxinias, Poinsettias and Chrysanthemums.

Supplies twice as much potash as nitrogen. AAT ProHort 15-15-30 is a formulation specially designed to supply twice as much potassium as nitrogen yet still maintaining optimum levels of other plant nutrients. Over 58% of the nitrogen is in the nitrate form making it an excellent fertilizer during periods of low light. It is recommended for use on Pot Mums, Easter Lilies, Geraniums and Gloxinias. This formula is suggested for the period when plants are setting bud as well as during maturation and blooming. At these times higher potassium levels are required for optimum plant response. It is an excellent crop finisher for Poinsettias as well as Chrysanthemums. The potential acidity of this fertilizer is very low making it a neutral formula exhibiting minimal acidifying tendencies in the soil. If soil or tissue samples show low potassium levels this is a good formulation for correcting this problem.

High Phosphate Fertilizer. This formula is recommended when higher phosphorus levels are required during the early stages of crop growth. It is often used during this period for many greenhouse crops particularly tomatoes and cucumbers. This analysis is ideal for hydrangeas since the high phosphorus content ties up excess aluminum in the soil which causes a strong pink colouration in the blooms. This fertilizer is often recommended for this purpose. As the name suggest, High Phosphate Fertilizer helps to remedy phosphorus deficient soils. African Violets and other acid-loving plants respond well to this formulation because of its high potential acidity.

AAT ProHort 17-5-19 High Mag fertilizer features over 60% of the nitrogen in the nitrate form which is important for low light feeding; a high level of magnesium which is particularly important for low pH media; an increased level of molybdenum and a lower level of boron which reduces the possibility of excess accumulation. The micronutrients are chelated with EDTA and DTPA which increases the availability of the micronutrients over a wider pH range.

A water soluble fertilizer recommended for use on turf grass. This blend is designed to deliver equal amounts of nitrogen and potassium with zero phosphorous benefits. Iron and Magnesium are added for optimum turf colour. AAT 19-0-10 offers excellent coverage and control of nutrients when using low nutrient application rates and excellent turf safety when used correctly.

AAT ProHort 20-10-20 Interior Landscape combines the nutritional benefits of a complete fertilizer with the convenience of no marking dye. This formula features over 60% of the nitrogen in the nitrate form making it ideal for use any time of the year with both high and low light conditions. It contains a higher concentration of molybdenum and magnesium for optimum nutrient availability in soilless mixes.

High nitrate, low phosphorus all season feed. The low pH of this fertilizer makes it suitable for maintaining the ideal pH balance in plug media. It can be used for bedding AAT ProHortuction and is often used in conjunction with AAT ProHort 14-0-14. This fertilizer can be used for blue Hydrangea production and will require only one application of aluminum sulphate. AAT ProHort 20-2-20 is also used for Easter Lily production where excess phosphorus is not required. A test.

The most widely used of all water solubles. AAT ProHort 20-20-20 is ideal for use in most situations where the soil condition is not known. It may be used alone or in combination with other analyses to meet the nutritional requirements of different plants. It is popular with bedding plant growers, and is the standard formula for feeding foliage plants. Due to its high solubility, 20-20-20 is widely used as a foliar feed to correct nutrient deficiencies in various agricultural and horticultural crops.

AAT ProHort High Potash 20-5-30 fertilizer is ideal for use when plants are maturing and blooming. It allows plants to establish heavier, thick-walled cells which result in good keeping qualities. This formula is particularly recommended for summer feeding of Carnations, Roses, Geraniums and other ornamentals. Since the potential acidity is very low this fertilizer will exhibit minimal acidifying activity in the soil. It would be especially useful where a change in soil pH is undesirable. Greenhouse tomatoes and cucumbers respond well to this formula when used alone or in combination with potassium nitrate.

AAT ProHort High Nitrate All Season 20-8-20 is recommended for growing in soilless mixes due to the high nitrate and higher concentrations of molydgenum and magnesium. This fertilizer is the backbone of many greenhouse growers' nutritional programs. Over 60% of the nitrogen is in the nitrate form making it a good formulation for use anytime of the year and is particularly effective during low light conditions. A higher concentration of molybdenum and magnesium are present for optimum nutrient availability in soilless mixes. Phosphate levels should be monitored before application to insure they are adequately high. This is an ideal formulation for use during low light conditions. With a complete micronutrient package and either alone or in combination with other analyses, AAT ProHort 20-8-20 is suitable for a wide range of crops.

This is ideal for lowering the pH in the stock tank. It contains urea phosphate, which keeps drip lines clean and clear from plugging.

AAT 28-5-18 Water Soluble Fertilizer is recommended for use on turf grass. High nitrogen content improves turf growth and quality. Features a maintenance level of phosphorous for root health and a high level of potassium for increased stress tolerance. Micronutrients are also included to contribute to overall turf health. This water soluble blend offers excellent coverage and control of nutrients when using low nutrient application rates and excellent turf safety when used correctly.

A new more advanced water suspendable tree fertilizer that offers many benefits to the professional arborist. AAT ProHort 30-8-8 has more than 70% of the nitrogens derived from Nitroform making the slow release portion greater than 50%. It has a very low salt index which guarantees safety for the tree roots and can easily be injected using a soil needle or drenched into the root zone. This formulation is a complete package of micronutrients required by trees for healthy growth.