Potassium Nitrate (KNO3)
Water-soluble fertilizer providing both nitrogen and potassium, widely used in fertigation for fruiting crops such as tomato, pepper, cucumber, grapes, citrus, and strawberries to improve yield, sugar content, and fruit quality.
How this fertilizer fits into your plan
1 Nutrient content (N‑P‑K and more)
- N – 12–14%
- K – 44–46percentage (K2O)
2 Typical application rates
- General: 30-80 kg per hectare via fertigation
- Vegetables: 30-60 kg per hectare during flowering and fruiting
- Fruits: 40-80 kg per hectare for fruit trees and vines
3 How to apply
Fertigation, Foliar spray (at lower doses)
4 Good crop fits
Tomato, Pepper, Cucumber, Grapes, Citrus, Strawberries
Frequency
Applied weekly or every 1-2 weeks as part of fertigation programs during fruiting
Best season
Can be used all year with correct timing.
Safety & precautions
Avoid mixing with calcium-containing fertilizers in the same tank and adjust EC to avoid salinity stress in sensitive crops.
Got questions? We've got answers
Find answers to common questions about Zarraak and how it can help manage your farm.
Zarraak is a comprehensive farm management platform designed for small to medium farms in Oman. It helps you plan irrigation schedules, monitor weather, track crop health, manage inventory, and coordinate with your team—all in one place.
Yes! Zarraak is completely free to start. There are no setup fees, no credit card required, and you can begin planning your irrigation immediately after signing up.
Zarraak is designed to work on low-bandwidth connections, making it accessible even in remote farm areas. However, an internet connection is required to access the platform and sync your data.
Absolutely! Zarraak is fully responsive and works perfectly on mobile phones, tablets, and computers. The interface is designed to be simple and easy to use in the field.
Zarraak's irrigation planner uses scientific calculations based on crop type, soil conditions, area size, and local weather data. The recommendations are guidelines that you can adjust based on your experience and field observations.
Yes! Zarraak supports team collaboration. You can invite farm workers, managers, and suppliers to your workspace, each with appropriate access levels.
To get started, you'll need basic information about your farm: plot areas, crop types, soil types, water sources, and irrigation systems. Zarraak guides you through this setup step-by-step.
Yes, you can export your irrigation schedules, crop logs, and inventory data for reporting, printing, or sharing with your team offline.
Zarraak integrates local weather data to help you adjust irrigation plans. If rain is forecasted, the system can suggest reducing irrigation, helping you save water and optimize your schedule.
Zarraak includes an onboarding tour to help you get started. You can also contact our support team through the contact page, and we're always here to help you succeed with your farm management.
Absolutely. Your farm data is private and secure. Only you and the team members you invite can access your farm information. We follow industry best practices for data security.
Yes! Zarraak allows you to manage multiple farms and plots within a single account. You can organize them by location, crop type, or any system that works for you.