Tuber Crop Nutrition | Fertilizers, Micronutrients & Biostimulants for Tuber Crops

Provide your tuber crops with complete nutrition from planting to harvest. Browse fertilizers, micronutrients, and biostimulants recommended for sprouting, root development, vegetative growth, tuber initiation, tuber development, tuber bulking, quality improvement, and yield enhancement to support healthy plants, increased tuber numbers, bigger tubers, improved dry matter content, and maximum yield.

This collection helps tuber crop growers easily select products based on crop growth stage, crop requirement, or nutrient deficiency symptoms.

Suitable for Potato, Sweet Potato, Cassava (Tapioca), Elephant Foot Yam, Colocasia (Taro), Arrowroot, Chinese Potato, Yam and other tuber crops.

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Crop Duration

Average Crop Duration: 90-300 Days
(Varies depending on crop and variety)

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Products Available in This Collection

Water Soluble Fertilizers

• 12-61-00 (MAP)

• 19-19-19

• 13-40-13

• 00-52-34 (MKP)

• Calcium Nitrate

• Potassium Nitrate (13-00-45)

• 00-00-50 (SOP)

Micronutrients

• Zinc EDTA 12%

• Iron EDTA 12%

• Boron 20%

• Calcium EDTA 12%

• Magnesium EDTA

• Manganese EDTA

• Copper EDTA

• Chelated Micronutrient Mix

Specialty Nutrition Products

• Calcium Boron

• Calcium + Boron + Magnesium EDTA

• Magnesium Sulphate (MgSO₄)

Biostimulants

• Amino Acid 80%

• Seaweed Extract

• Humic Acid

• Fulvic Acid 80%

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Tuber Crop Nutrition Schedule

Crop Stage	Crop Days After Planting	Recommended Products
🌱 Sprouting & Root Development	0-25 Days	12-61-00, Humic Acid, Fulvic Acid 80%, Seaweed Extract
🌿 Vegetative Growth	25-50 Days	19-19-19, Zinc EDTA 12%, Amino Acid, Fulvic Acid 80%
🌾 Tuber Initiation	45-75 Days	13-40-13, Boron 20%, Calcium Boron, Seaweed Extract
🥔 Tuber Development	60-100 Days	00-52-34, Calcium Boron, Calcium + Boron + Magnesium EDTA
📈 Tuber Bulking	90-150 Days	Potassium Nitrate, Calcium EDTA 12%, Magnesium EDTA
🟤 Tuber Maturity & Quality Development	120-200 Days	00-00-50, Potassium Nitrate, Fulvic Acid 80%
🚜 Yield Enhancement & Harvest Quality	150 Days Onwards	SOP, Potassium Nitrate, Micronutrient Mix, Amino Acid

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Stage-Wise Nutrition Guide

🌱 Sprouting & Root Development (0-25 Days)

Objective

• Faster sprouting

• Strong root development

• Better crop establishment

Recommended Products

• 12-61-00

• Humic Acid

• Fulvic Acid 80%

• Seaweed Extract

Dosage

Foliar Spray

• 12-61-00: 5 g/L

• Humic Acid: 1-2 g/L

• Fulvic Acid 80%: 0.5-1 g/L

• Seaweed Extract: 1-2 g/L

Drip Fertigation

• 12-61-00: 1-2 kg/acre

• Humic Acid: 500 g/acre

• Fulvic Acid 80%: 250-500 g/acre

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🌿 Vegetative Growth (25-50 Days)

Objective

• Vigorous plant growth

• Better canopy development

• Increased photosynthesis

Recommended Products

• 19-19-19

• Zinc EDTA 12%

• Amino Acid 80%

• Fulvic Acid 80%

Dosage

Foliar Spray

• 19-19-19: 5 g/L

• Zinc EDTA: 0.5-1 g/L

• Amino Acid: 1-2 g/L

Drip Fertigation

• 19-19-19: 2-3 kg/acre

• Zinc EDTA: 250-500 g/acre

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🌾 Tuber Initiation (45-75 Days)

Objective

• More tuber initiation

• Better tuber formation

• Uniform tuber development

Recommended Products

• 13-40-13

• Boron 20%

• Calcium Boron

• Seaweed Extract

Dosage

Foliar Spray

• 13-40-13: 5 g/L

• Boron 20%: 1 g/L

• Calcium Boron: 1-2 g/L

Drip Fertigation

• 13-40-13: 2-3 kg/acre

• Boron Products: 250-500 g/acre

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🥔 Tuber Development (60-100 Days)

Objective

• Increased tuber numbers

• Better tuber growth

• Improved tuber quality

Recommended Products

• 00-52-34

• Calcium Boron

• Calcium + Boron + Magnesium EDTA

• Amino Acid

Dosage

Foliar Spray

• MKP: 5 g/L

• Calcium Boron: 1-2 g/L

Drip Fertigation

• MKP: 2-3 kg/acre

• Specialty Products: 500 g-1 kg/acre

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📈 Tuber Bulking (90-150 Days)

Objective

• Bigger tubers

• Increased tuber weight

• Better dry matter accumulation

Recommended Products

• Potassium Nitrate

• Calcium EDTA 12%

• Magnesium EDTA

• Fulvic Acid 80%

Dosage

Foliar Spray

• Potassium Nitrate: 5 g/L

• Calcium EDTA: 1-2 g/L

• Magnesium EDTA: 1 g/L

Drip Fertigation

• Potassium Nitrate: 3-5 kg/acre

• Calcium EDTA: 500 g-1 kg/acre

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🟤 Tuber Maturity & Quality Development (120-200 Days)

Objective

• Better tuber quality

• Improved starch content

• Enhanced storage quality

Recommended Products

• 00-00-50

• Potassium Nitrate

• Fulvic Acid 80%

Dosage

Foliar Spray

• SOP: 5 g/L

• Fulvic Acid 80%: 0.5-1 g/L

Drip Fertigation

• SOP: 3-5 kg/acre

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🚜 Yield Enhancement & Harvest Quality

Objective

• Higher tuber yield

• Better market quality

• Improved storage life

Recommended Products

• SOP

• Potassium Nitrate

• Micronutrient Mix

• Amino Acid

Dosage

Foliar Spray

• SOP: 5 g/L

• Micronutrient Mix: 1-2 g/L

Drip Fertigation

• SOP: 3-5 kg/acre

• Micronutrient Mix: 500 g-1 kg/acre

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Nutrient Deficiency Solutions

Deficiency	Symptoms	Recommended Product
Zinc Deficiency	Stunted growth, small leaves	Zinc EDTA 12%
Iron Deficiency	Yellow young leaves	Iron EDTA 12%
Boron Deficiency	Poor tuber formation, hollow tubers	Boron 20%, Calcium Boron
Calcium Deficiency	Cracked tubers, poor quality	Calcium EDTA 12%, Calcium Boron
Magnesium Deficiency	Yellow older leaves	Magnesium EDTA, MgSO₄
Multiple Deficiencies	Weak growth, poor yield	Chelated Micronutrient Mix

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Problem-Based Solutions

Crop Problem	Recommended Products
Poor Sprouting	12-61-00 + Humic Acid + Fulvic Acid 80%
Weak Root Growth	Humic Acid + Seaweed Extract
Poor Vegetative Growth	19-19-19 + Amino Acid
Delayed Tuber Initiation	13-40-13 + Boron 20%
Less Tuber Formation	MKP + Calcium Boron
Small Tubers	Potassium Nitrate + SOP
Poor Tuber Bulking	Potassium Nitrate + Calcium EDTA 12%
Cracked Tubers	Calcium EDTA 12% + Calcium Boron
Low Dry Matter	SOP + Fulvic Acid 80%
Poor Storage Life	SOP + Calcium EDTA 12%
Low Yield	SOP + Potassium Nitrate + Micronutrient Mix
Yellow Leaves	Iron EDTA or Magnesium EDTA

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Quick Dosage Guide

For 15 Litre Knapsack Sprayer

Product	Quantity
Water Soluble Fertilizers	75 g
Micronutrients	8-15 g
Calcium Products	15-30 g
Fulvic Acid 80%	8-15 g
Amino Acid 80%	15-30 g
Seaweed Extract	15-30 g
Humic Acid	15-30 g

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Benefits

✓ Faster Sprouting

✓ Strong Root Development

✓ Better Tuber Initiation

✓ Increased Tuber Numbers

✓ Improved Tuber Bulking

✓ Bigger Tuber Size

✓ Better Dry Matter Content

✓ Enhanced Storage Quality

✓ Reduced Cracking

✓ Higher Marketable Yield

✓ Suitable for Foliar Spray and Drip Fertigation

Suitable For

Potato • Sweet Potato • Cassava (Tapioca) • Elephant Foot Yam • Taro • Chinese Potato • Yam • Arrowroot • Commercial Tuber Crops