🌱 ndvi.us

Crop Monitoring Blog

Practical guides on NDVI, Sentinel-2 satellite imagery, and getting real value from free crop monitoring.

Reading NDVI Patterns: A Guide to Planning Field Checks

August 19, 2026 · 3 min read

Use stripes, patches and edge patterns to plan a field inspection while checking image quality and avoiding diagnosis from colour alone.

diagnosticsscoutingirrigationdiseasepractical-guide

An NDVI Monitoring Calendar for Rabi and Kharif Crops

August 19, 2026 · 4 min read

When to check your satellite crop maps through the Pakistani cropping year — a month-by-month guide for wheat, rice, cotton, sugarcane and maize growers.

seasonal-guidewheatricecottonpakistanplanning

Satellite vs Drone vs Paid Imagery: What's Right for Your Farm?

August 19, 2026 · 3 min read

An honest comparison of free Sentinel-2 NDVI, drone mapping, and commercial satellite subscriptions — cost, resolution, revisit, and which farms actually need which.

sentinel-2dronesprecision-agriculturecost-comparison

When NOT to Trust an NDVI Map: 8 Situations That Fool Satellite Crop Monitoring

August 19, 2026 · 4 min read

NDVI is powerful but not infallible. Soil background, saturation, cloud shadows, weeds and more — eight situations where the map misleads and how to recognize each one.

ndvi-basicslimitationsaccuracy

7 Practical Ways to Use NDVI in a Field Scouting Workflow

August 19, 2026 · 3 min read

Seven ways to connect NDVI patterns with field inspections, records and follow-up, with clear limits on what the map can establish.

precision-agriculturefertilizerirrigationscouting

How Often Does Sentinel-2 Image Your Farm? Revisit Times, Clouds, and Missing Dates

August 19, 2026 · 5 min read

Why your field gets a new satellite image every 5 days in theory but sometimes waits weeks in practice — understanding Sentinel-2 revisit cycles, cloud cover, and image quality.

sentinel-2satellite-imageryclouds

NDVI Values Explained: What Is Normal for Wheat, Rice, Cotton and Maize?

August 19, 2026 · 3 min read

Read NDVI in the context of wheat, rice, cotton and maize growth stages, without treating fixed values as a diagnosis.

ndvi-basicswheatricecottonmaize

What Is NDVI? A Farmer's Guide to Reading Satellite Crop Health Maps

August 19, 2026 · 4 min read

NDVI explained in plain language: what the colors mean, how satellites measure crop health, and how to use a free NDVI map to make better decisions on your farm.

ndvi-basicssatellite-imagerycrop-health
Advertisement
Check your own fields — free.
Draw your field boundary and see the latest Sentinel-2 NDVI map in seconds. No signup.
Open the NDVI map →