Map 12.61 Fertilizer

MAP stands for Monoammonium Phosphate, and it is a common type of fertilizer. It’s a water-soluble fertilizer that contains two important nutrients for plant growth: nitrogen and phosphorus. The chemical formula for monoammonium phosphate is NH₄H₂PO₄.

The typical analysis of MAP fertilizer is often represented as a set of three numbers, such as 12-61-0. In this case, the numbers refer to the percentage of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer, respectively. Using the example, the fertilizer contains 12% nitrogen, 61% phosphorus, and 0% potassium.

MAP is known for its high phosphorus content, which is essential for plant root development, flowering, and fruiting. It is commonly used in agriculture and horticulture to provide a readily available source of these nutrients to plants. MAP is suitable for use in various crops, including grains, oilseeds, fruits, and vegetables.As Ark Global Kimya, we do MAP Fertilizer wholesale and export in Turkey.


Monoammonium phosphate (MAP) fertilizer is effective for providing essential nutrients, particularly nitrogen and phosphorus, to plants. Here are some key points regarding the effectiveness of MAP fertilizer:
Quick Nutrient Availability: MAP is water-soluble, which means that its nutrients are readily available to plants once applied. This quick availability makes it effective for addressing immediate nutrient needs.
Phosphorus Content: MAP is known for its high phosphorus content. Phosphorus is crucial for various plant processes, including root development, energy transfer, and flower and fruit production. It is particularly beneficial during the early stages of plant growth.
Acidic pH: MAP has an acidic reaction, which can help lower the pH of alkaline soils. This can be advantageous in situations where the soil pH needs adjustment to better suit the needs of specific crops.
Versatility: MAP is suitable for use in a variety of crops, including grains, oilseeds, fruits, and vegetables. Its versatility makes it a popular choice for many different agricultural applications.
Ease of Handling: MAP is generally easy to handle and apply. It can be used as a dry fertilizer or dissolved in water for liquid application, providing flexibility in how it is delivered to plants.
Precision in Nutrient Application: Because the nutrient content is specified on the fertilizer label, growers can apply MAP with precision, targeting the specific nutrient requirements of their crops.
While MAP is effective for certain applications, it’s important to note that the overall effectiveness of any fertilizer depends on various factors, including soil conditions, climate, crop type, and proper application practices. Additionally, a balanced fertilization approach, considering the full spectrum of plant nutrient needs, is often recommended for optimal plant health and productivity.

Using monoammonium phosphate (MAP) fertilizer involves several steps to ensure proper application and maximize its effectiveness.
Soil Testing: Before applying any fertilizer, conduct a soil test to assess the nutrient levels in your soil. This helps determine the specific needs of your crops and allows you to make informed decisions about fertilizer application.
Calculate Application Rates: Determine the appropriate application rate based on the nutrient requirements of your crops, as indicated by the soil test results. Consider the N-P-K ratio of the MAP fertilizer and adjust the application rate accordingly.
Application Timing: Consider the growth stage of your crops when applying MAP. It is often used as a starter fertilizer during planting or early growth stages when phosphorus is critical for root development.
MAP can be applied using different methods:
Broadcasting: Spread the granular or crystalline MAP evenly over the soil surface.
Band Placement: Apply the fertilizer in bands alongside the crop rows or directly in the planting furrow.
Incorporation:  Incorporate the MAP into the soil immediately after application. This can be done through tillage, irrigation, or rainfall. Incorporation helps prevent nutrient runoff and enhances nutrient availability to plants.
Avoid Seed Contact:  When using MAP as a starter fertilizer, be cautious about direct contact with seeds, especially small seeds. Some fertilizers, including MAP, may have a high salt index, and direct contact with seeds can cause damage.
Watering:  Ensure that the soil receives adequate moisture after fertilizer application. Watering helps dissolve the MAP and makes nutrients available to plant roots.
Storage and Handling:  Store MAP fertilizer in a cool, dry place to prevent caking and maintain its quality. Follow proper safety guidelines for handling fertilizers, including wearing appropriate protective equipment.
Consider Environmental Factors:  Be mindful of environmental factors such as rainfall and potential runoff. Applying fertilizer before heavy rainfall may lead to nutrient loss.
Monitor Plant Response:  Keep an eye on your crops and monitor their response to fertilizer application. Adjust your fertilization practices in subsequent growing seasons based on crop performance and additional soil tests.

What Kind of Plants of MAP Fertilizer Using For ?

Monoammonium phosphate (MAP) fertilizer can be used for a wide range of plants, including but not limited to:
Field Crops:

Grains: Crops like wheat, barley, oats, and rice can benefit from MAP, especially during early growth stages.
Corn (Maize): MAP is commonly used for corn production to provide essential nutrients during the vegetative and reproductive stages.
Oilseed Crops:
Soybeans, Canola, Sunflowers: Oilseed crops often require phosphorus for optimal yield and oil content.
Peas, Lentils, Chickpeas: Leguminous crops can benefit from MAP, especially for root development and nitrogen fixation.
Tomatoes, Potatoes, Peppers: MAP can be suitable for many vegetable crops, supporting root and fruit development.
Apples, Grapes, Berries: Fruiting plants often require phosphorus for flower and fruit development, making MAP a potentially beneficial fertilizer.
Forage Crops:
Hay, Alfalfa, Clover: Forage crops, which are often used as feed for livestock, can benefit from MAP to support overall plant growth.
Turf and Lawns:
Golf Courses, Sports Fields, Residential Lawns: MAP can be applied to turf to promote healthy grass growth.
Ornamental Plants:
Flowering Shrubs, Trees, and Ornamental Plants: MAP can be used to support the growth and development of ornamental plants.
It’s important to note that the specific fertilizer requirements can vary among different plant species, and factors such as soil conditions, climate, and local agricultural practices should be considered when determining the appropriate fertilizer regimen. Additionally, application rates and timing are crucial to ensure that plants receive the nutrients they need at the right stages of growth. Always follow recommended guidelines and consult with local agricultural experts for precise recommendations based on the specific crops and conditions in your area.

How to Use MAP Fertilizer ?

Using Monoammonium Phosphate (MAP) fertilizer effectively involves proper application methods, timing, and considerations for specific crops. Here’s a general guide on how to use MAP fertilizer:

1. Soil Testing: Conduct a soil test to determine the nutrient levels in the soil. This helps in understanding the existing phosphorus levels and guides the appropriate application rate.
2. Understanding Nutrient Requirements: Different crops have varying nutrient requirements. Understand the specific needs of the plants you are cultivating, especially in terms of nitrogen (N), phosphorus (P), and potassium (K).
3. Calculate Application Rates: Based on the nutrient requirements and soil test results, calculate the appropriate application rate for MAP. The fertilizer bag will provide information on the percentage of nitrogen (N), phosphorus (P₂O₅), and potassium (K₂O).
4. Application Methods: Broadcast Application: Spread the MAP fertilizer evenly over the soil surface. This method is suitable for large-scale applications, such as in agricultural fields.
Row Application: Apply the fertilizer in rows, especially for row crops. This can be done during planting or as a side-dressing application during the growing season.
Incorporation: For some crops, especially those planted in rows, the fertilizer can be incorporated into the soil during planting.
5. Timing of Application: Pre-planting: Some crops benefit from MAP applied before planting to ensure essential nutrients are available during early growth.
Side-Dressing: Apply MAP during the growing season when the plants need an additional nutrient boost. This is common for crops like corn.
Top-Dressing: For perennial crops, apply MAP on the soil surface around the plants, avoiding direct contact with the foliage.
6. Avoiding Seed Burn: Direct contact of fertilizer with seeds can lead to seed burn. Ensure a safe distance between the fertilizer and seeds during planting.
7. Watering: Water the area after applying the fertilizer to help dissolve and distribute the nutrients into the soil.
8. Storage: Store MAP fertilizer in a cool, dry place away from direct sunlight. Proper storage helps maintain the quality of the fertilizer.


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