DAP Fertilizer: A Solution for High-Yielding Crops

Table of Contents  

• What is DAP Fertilizer? 
• What is Nano DAP? 
• When Should You Apply DAP Fertilizers? 
• How to Apply DAP Fertilizers to Your Crops? 
• What are the Benefits of DAP Fertilizer? 
• What are the Disadvantages of DAP Fertilizer? 
• Which are the Crops where DAP can be Applied? 
• What are the Points to Consider while Applying DAP Fertilizer? 
• What is DAP Production Scenario in India?  
• What are the Government Initiatives to Promote DAP Application?  

What is DAP Fertilizer? 

A DAP fertilizer is a common water-soluble fertilizer known for its excellent physical properties and high nutrient content. DAP fertilizer full form is Di-Ammonium Phosphate. It is rich in Nitrogen and Phosphorus, two major macronutrients and part of the 18 essential plant nutrients. The DAP fertilizer NPK ratio is 18:46:0, which falls within the high-nutrient grade. It is among the most common types of fertilizers used in India, as it is suitable for almost all kinds of crops. 

What is Nano DAP? 

A nano DAP is a liquid fertilizer that has nanoparticles and is an efficient source of Nitrogen (8%) and Phosphorus (16%) for all crops. Due to its less than 100 Nanometre (nm) particle size, it can easily enter the seed surface or through stomata and other plant openings. Its better spreadability supports better seed development, higher chlorophyll levels, and photosynthetic efficiency. 

When Should You Apply DAP Fertilizers? 

DAP fertilizer is applied based on the crop and its growth stage. Usually, it is applied on or before planting to provide essential nutrients to the crop for better plant establishment at the initial stage. If a crop has a longer growing season, split applications can be done half at planting and the rest during the plant's active growth stages. 

How to Apply DAP Fertilizers to Your Crops? 

The application of DAP fertilizer depends upon crop growth. Usually, it is applied in the initial stages of crop development to provide essential nutrients. DAP fertilizer can be applied using various methods, including: 

• Broadcasting: Equal distribution of granules over the soil surface. 
• Side-Dressing: Apply fertilizer beside plant rows on different growth stages. 
• Seed-Row Placement: During sowing, fertilizer should be placed in a planting row.  
• Fertigation: Dissolve DAP with water and then apply it through the irrigation system. 
• Drones: Now, they can also be applied precisely and remotely with the help of drones.  

What are the Benefits of DAP Fertilizer? 

Phosphorus plays a crucial role in root development. DAP fertilizers ensure that plants receive an ample supply of phosphorus, leading to higher productivity. The following are some of the top DAP fertilizer benefits:

• Better Root Development & Plant Growth: DAP fertilizer supplies both nitrogen and phosphorus, which ensures balanced nutrient intake and the development of healthy fruits and flowers in a plant. This results in better root development and plant growth. 
• More Nutrient Absorption: DAP fertilizer helps in the development of more leaves and branches due to enough nutrient absorption. Thus, it provides a lush-looking plant. 
• Suitable for Different Crops: DAP khaad can be applied to almost all types of crops, including grains, fruits, cereals, and vegetables. 
• Easy to Store: It is dust-free and easy to store fertilizer; thus, it can be stored for a longer time. 
• Disease Resistant: The regular use of phosphorus also helps reduce plant diseases. So, DAP fertilizers also act as disease resistant. 

What are the Disadvantages of DAP Fertilizer? 

Apart from the benefits, there are also some disadvantages of DAP fertilizer. Have a look at the points below: 

• The excessive DAP fertilizer uses can deteriorate soil fertility. 
• Its overspreading can kill many essential microorganisms present in the soil. 
• It can also cause leaf chlorosis. 
• It can probably lead to high water pollution. 
• The presence of ammonium after the DAP granules start dissolving can absorb and damage the roots of the seedlings. 

Which are the Crops where DAP can be Applied? 

DAP fertilizer can be used on various crops including field crops, fruits and vegetables. Let’s have a look at the list of crops where it can be used: 

What are the Points to Consider while Applying DAP Fertilizer?  

The following points need to be considered while applying DAP fertilizer to your crops: 

Soil Testing: Soil testing is a very important step for the efficient use of DAP fertilizer. Test the soil to determine nutrient requirements or nitrogen and phosphorus content. DAP is a slightly acidic fertilizer which can lower the pH of the soil during application which is beneficial for the crops to thrive in slightly acidic conditions. Hence, also understanding soil pH level during soil testing is an important point of consideration. 

Right Amount of Fertilizer Dose: The excessive use of fertilizer is not good for the crop. Always determine the right amount of fertilizer according to the crop needs. 

DAP Placement: Improper spread of DAP fertilizer can cause seedling injury. DAP should be placed below the seed, slightly to one side. 

Soil Amendments: The macronutrients, nitrogen and phosphorus, give the best result in neutral soils. So, if the soil is alkaline or has an excessive presence of calcium, then adding gypsum and leaching can help bring the soil pH value to neutral. 

What is DAP Production Scenario in India? 

DAP fertilizer is in high demand in India due to its high nutrient content, water-solubility, and applicability across all crops. On an annual basis, India requires 10 million tonnes of this fertilizer, but it produced only 4.35 million tonnes in 2023-24. Almost 60% of India’s DAP fertilizer needs are met through imports from countries like China, Saudi Arabia, and Morocco. 

In FY25, the production of DAP and NPK fertilizers combined reached from 110.09 LMT to 158.78 LMT - a 44% increase from the previous year. 

The government also secured a consortium of Indian fertilizer companies and Morocco to arrange the supply of 25 LMT of DAP and TSP. Furthermore, in July 2025, a Long-Term Agreement (LTA) was signed between Saudi Arabia and Indian companies for the annual supply of 31 LMT of DAP over five years, starting in 2025-26. 

The Government of India has announced a special package for DAP (Imported and Indigenous), which includes reimbursement of other costs, reimbursement of GST, provision of a reasonable return, and reimbursement of any increase in the price of DAP in the International market. 

In India, the leading DAP fertilizer manufacturers are IFFCO, Rashtriya Chemicals and Fertilizers Ltd (RCF), Chambal Fertilizers and Chemical Limited, Coromandel International Ltd, Fertilizers and Chemicals Travancore Ltd, and Gujarat State Fertilizers and Chemicals. 

What are the Government Initiatives to Promote DAP Application? 

The Government of India actively promotes the use of DAP through significant financial subsidies and technological advancements that ensures farmers have access to affordable soil nutrients. Here is the list of government initiatives that promotes DAP application:

Nutrient-based Subsidy (NBS): Under this scheme, a fixed amount of subsidy, decided on an annual/bi-annual basis, is provided on subsidized Phosphatic and Potassic fertilizers depending on their nutrient content, including DAP.

Bhartiya Jan Urvarak Pariyojana: The government implemented One Nation One Fertilizer by introducing a single brand for fertilizer and logo. Under this scheme, All DAP bags must be sold under the single brand name "Bharat DAP. The main goal of this scheme is increasing the availability of fertilizers in the market. 

Namo Drone Didi: The Ministry of Fertilizers promotes the adoption of Nano DAP. It is a liquid fertilizer that has an efficient source of Nitrogen and Phosphorus. The government is heavily driving its application through the Namo Drone Didi scheme, which trains rural women to spray these nano-fertilizers using agricultural drones.

DAP fertilizer is undoubtedly the best fertilizer for plant nourishment. DAP for plants is preferred by farmers due to its high phosphorus concentration and balanced nitrogen content, which gives several benefits to the crops and maintains overall plant health. The right amount of fertilizer is essential for better root development, nutrient-rich crops, and healthy fruits and flowers in a plant. Apply DAP fertilizer if you need a quick boost of phosphorus for plant growth and a readily available and affordable fertilizer option which results in improved crop yield.