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Why are Alkalinity and pH Control Essential to Plant Growth?

The most important factors in the capability of your water to effectively provide nutrients to plants are pH and Alkalinity. Hanna produces the most advanced pH control and Fertigation systems on the market that will precisely adjust the pH and alkalinity of your irrigation water.

The Ultimate Guide to Testing Soil pH

This all-encompassing guide will help anyone who is just starting out with soil pH testing. (And experienced growers will be able to learn something, too!)

The Benefits of Fertigation and Irrigation Control

There have been many advances in irrigation since its beginning & new technologies make it easier than ever to control water flow, fertilizer, nutrients & more.

How to Test Nutrients Using the GroLine HI9814 Meter

Designed for hydroponic, aquaponic, and greenhouse growers, the Hanna Instruments GroLine HI9814 is a combo meter that measures pH, EC, TDS and temperature.

Why Sanitation Control is a Must Have for Greenhouses

Sanitation Control Systems automate the process of disinfecting irrigation systems and grow media which results in better plant health and lower labor costs.

Top 10 Mistakes in pH Measurement

Proper technique in pH measurement is not always put into practice. Learn about the top 10 pH mistakes our experts see, and find out what to do instead!

Hanna Instruments’ Top 10 Trending Products for 2015

Here's our first top 10 list of trending products for 2015. From Bluetooth electrodes to smartphone apps, find out which products scored big in 2015.

Using ORP to Monitor Vegetable Wash Bath Disinfection

As a perishable commodity, a variety of factors can reduce the yield of crops after harvest including heat, mechanical damage, and microbial spoilage.

Using Turbidity to Monitor Produce Rinse Baths

Depending on the field conditions at the time of harvest, the lettuce can have varying amounts of dirt on the surface of and in the crevices of the leaves.

Measuring Dissolved Oxygen of Hydroponic Nutrient Solutions

Oxygen is essential for the development of a healthy root system, both for aerobic respiration of the roots and to support beneficial aerobic bacteria.

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