NPK 13 40 13 Fertilizers for Plants | 100% Water Soluble Powder | Complete Plant Food and Nutrition for Healthy Home Garden, Growth Boost for Fruits and Flowers

• Crops are in the early vegetative or root-establishment stage, where high P is required.
• Flowering and fruiting crops require strong root support, and nutrient uptake is needed.
• Vegetables, fruits, ornamentals, greenhouse/hydroponic systems where water-soluble fertilizers are used.

• During root-establishment or when plants are establishing (especially in transplants/nurseries).
• At flowering and fruit-set stages when phosphorus demand is high.
• Whenever soil/test shows P deficiency or weak root growth.

Yes. For terrace gardens, potted plants and container crops:

• Use a diluted foliar or drench application scaled appropriately (e.g., 5 g/L water) when plants show signs of P deficiency or weak root/flower performance.
• Because it is highly soluble, it fits container/hydroponic systems.

• Poor root development in nursery or transplants.
• Slow flowering or fruit set.
• Leaves older showing P deficiency: dark green with purple tinge, slow growth.
• Plants appear weak despite adequate N/K.

Yes — being a water-soluble NPK, it generally mixes well with most foliar/injectible solutions.

• When used in fertigation systems, can be integrated into water-soluble nutrient programs.
• As always, perform a jar-test before mixing with other strong salts or chemicals to avoid precipitation or incompatibility.

• 13-40-13 emphasizes phosphorus (40% P₂O₅) while delivering moderate N and K.
• 19-19-19 or 20-20-20 are balanced in all three nutrients (equal or near equal N/P/K).
• Use 13-40-13 when you want P priority (rooting, flowering) rather than equal all-round nutrition.

Signs of K deficiency: older leaves show margin scorch/browning, weak stems, poor fruit size/quality, increased lodging in cereals, reduced stress tolerance (drought, cold). Using this K-rich product helps correct these issues when plant K demand is high or soil K is low.

Potassium is key to sugar transport, fruit size, color, shelf life, and flower/fruit setting. The high potassium formulation helps improve quality, number of fruits/flowers, and market value. The product’s description on Utkarsh mentions “excellent fruit setting & fruit development” when using NOP 13-00-45.

Utkarsh NOP 13:00:45 works best under warm and actively growing crop conditions when the plants are photosynthetically active and capable of absorbing nutrients quickly.

Yes — absolutely. It is designed for high solubility and precision application in systems including:

• Greenhouse fertigation/drip systems: Because KNO₃ is water-soluble and free of chloride/sodium (in many formulations) it fits recirculating irrigation systems and soilless media.
• Hydroponics / soilless culture: Usable as part of the nutrient solution due to solubility and dual N+K delivery.
• Tank mixes and fertigated stock solutions: When preparing stock solutions, KNO₃ is often used to meet NO₃-N + K demand in greenhouse crops.