When & How to Apply Agricultural Products

When & How to Apply Agricultural Products

Choosing the right agricultural product is important — but how and when you apply it can be equally important.

Different products are designed for different purposes. Some are used for seed treatment, some around the root zone, some through drip irrigation, while others are applied as foliar sprays.

Similarly, the recommended timing can vary according to the crop’s growth stage.

For example, a product intended for seed treatment should not simply be treated like a foliar spray, while a flowering-stage product may have a completely different application window.

This guide explains the basic application approaches used across the PhourAgro product range and why following the recommended method and timing matters.

Why Application Method Matters

Agricultural products can be applied through different methods depending on their formulation and intended use.

The main methods found across the PhourAgro range include:

🌱 Seed Treatment

Applied directly to seeds before sowing.

🌿 Soil Application

Applied to the soil or root zone.

💧 Drip / Fertigation

Delivered through irrigation systems.

🍃 Foliar Spray

Applied directly to plant foliage.

🌳 Root Zone Application

Placed around the root area of established plants or trees.

The appropriate method depends on the individual product.

1. Seed Treatment

Seed treatment is one of the earliest opportunities to support crop establishment.

The purpose is to treat the seed before it is planted so that the product is present from the beginning of the crop cycle.

Phour Bioteeka

Phour Bioteeka is positioned as a Seed Specialist and is listed for cereals, pulses, oilseeds and vegetables.

The catalogue recommends seed coating/slurry application.

Listed rates include:

• Cereals: 5–10 ml/kg seed
• Pulses & oilseeds: 5–8 ml/kg seed
• Vegetables: 5 ml/kg seed

Application Stage

Before sowing

This makes seed treatment a starting point in the crop-growth journey.

2. Soil & Root-Zone Application

Some products are intended to be applied directly to soil or around the root zone.

This approach is particularly relevant for products focused on soil health and root development.

Phour Mycorrhiza

Phour Mycorrhiza is listed for cereals, pulses, oilseeds, vegetables, fruits and plantation crops.

The catalogue lists:

• Field crops: 4 kg/acre
• Vegetables: 2–3 kg/acre or root dip
• Orchards: 100–200 g/pit

It is positioned around the root–soil interface and nutrient absorption.

Application Methods

• Soil application
• Root dip
• Basal application

3. Soil Application for Soil Health

Soil-focused products can be incorporated into the crop-management process before or around planting.

Phour Black Gold

Phour Black Gold is listed as a Phosphate Rich Organic Manure (PROM).

The catalogue recommends basal soil application before sowing or transplanting.

Listed application rates:

Cereals & Pulses

50 kg/acre

Vegetables

40 kg/acre

Fruit Orchards

2–5 kg/tree, depending on tree age.

This demonstrates an important principle:

Application rate can change according to the crop and growing system.

4. Drip & Fertigation Application

Some products can be delivered through irrigation systems.

This can be useful when the product’s formulation and label specifically support drip or fertigation application.

Phour Azotobacter + PSB

The catalogue lists seed treatment, soil drench and drip application among its application methods.

Listed examples include:

• Cereals: 100 ml/quintal seed or 1 L/acre through drip
• Vegetables: 500 ml/acre
• Sugarcane: 2 L/acre
• Mature fruit trees: 1 L/tree

Important

The catalogue specifically states to avoid direct mixing with chemical fertilizers and pesticides for this product.

Always follow the final approved product label for compatibility instructions.

5. Foliar Spray

Foliar application means applying the product directly to plant foliage through a spray.

This method is used for several PhourAgro products where the catalogue specifically recommends foliar application.

Phour Zinc Power

Phour Zinc Power is a liquid chelated zinc product containing 12% EDTA-chelated Zn. It is listed for cereals, vegetables and fruits with zinc deficiency.

The catalogue lists:

• Cereals: 2 ml/L
• Vegetables: 2 ml/L
• Fruits: 2.5 ml/L after flowering

Application is listed as foliar spray from the vegetative to flowering stage, depending on the crop.

6. Application According to Crop Stage

One of the most important factors in product application is timing.

A product can have a specific recommended crop stage.

For example:

🌱 Vegetative Stage

Phour Azoteeka Plus-E

The catalogue lists foliar, soil drench and drip application and positions it around vegetative growth.

🌸 Flowering Stage

Phour Bhoomi-K

Listed from flowering through fruit ripening depending on the crop.

🌾 Grain / Pod Development

Phour Up-Gro

Listed for wheat and pulses from flowering to grain/pod filling.

This is why the same product should not automatically be applied at every stage of the crop.

7. Paddy-Specific Application

Some products are designed specifically around a crop.

Phour Paddy Booster

Phour Paddy Booster is listed specifically for paddy and is described as a liquid NPK + micronutrient complex.

The catalogue lists:

Tillering

500 ml/acre

Panicle Initiation

300 ml/acre

Application method:

Foliar spray

This is a good example of crop-specific + stage-specific application.

8. NPK Application

Phour N.P.K. is available in:

• 19:19:19
• 0:52:34

and is described as 100% water soluble in the catalogue.

The catalogue positions:

19:19:19

For the vegetative stage

Listed fertigation rate:

3–4 kg/acre every 10–15 days

0:52:34

For the flowering to fruit/grain stage

Listed rate:

2–3 kg/acre

The exact application should always follow the approved product label and crop-specific recommendation.

9. Root-Zone Application for Horticulture

Horticultural crops and fruit trees may require a different application approach from field crops.

Phour RootMax

RootMax is listed for:

• Horticultural crops
• Plantation crops
• Nursery plants
• Fruit trees
• Ornamentals

The catalogue recommends root-zone/nursery-mix application.

Examples include:

New fruit plants: 200–300 g/pit

Nursery & ornamentals: 50–100 g/plant or pot

Horticulture field crops: 3–4 kg/acre

Application Method at a Glance

How to Choose the Right Application Method

Before applying any product, ask these five questions:

01 — What Crop Am I Growing?

Wheat, paddy, vegetables, pulses and fruit crops can have different requirements.

02 — What Stage Is the Crop In?

Seed, root development, vegetative growth, flowering or fruit/grain development?

03 — What Is the Product Designed For?

Check the product’s intended use and recommended crops.

04 — Which Application Method Is Recommended?

Seed treatment, soil application, drip, foliar spray or root-zone application?

05 — What Is the Recommended Dosage?

Never assume that the same dosage applies to every crop or application method.

Don’t Overlook Product Compatibility

Another important part of application is compatibility.

Not every agricultural product should be mixed with every fertilizer, pesticide or fungicide.

For example, the PhourAgro catalogue contains specific compatibility instructions for individual products.

Therefore:

Always check the product label before tank mixing or combining products.

When compatibility is not confirmed, avoid making assumptions.

Common Application Mistakes to Avoid

❌ Using the wrong application method

A seed-treatment product should not automatically be used as a foliar spray.

❌ Ignoring crop stage

Application timing can be product- and crop-specific.

❌ Using the same dosage everywhere

Rates can change according to crop, application method and growing system.

❌ Mixing products without checking compatibility

Always check the label and compatibility guidance.

❌ Applying without understanding the crop requirement

Product selection should start with the crop’s actual need.