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Special  –  Water


Understanding water quality: The key to beautiful flowers

While there are many factors that affect cut flowers, water quality is one of the key factors. It might seem simple, but water can actually be quite complex. Water quality has four main factors: pH level, alkalinity, hardness and total dissolved solids. Understanding the complexity of water quality can make.....

Stefan Bakker, Revaho

"It is algae time again!"

With this statement Stefan Bakker, product manager Revaho, indicates that in this time of the year the greenhouse horticulture can be confronted with algae growth in water supplies due to increasing light levels and rising water temperatures. Before an algae explosion occurs, a contamination with algae must.....

US (CA): Brought to you by water

Brought to You by Water is a new outreach and education program by the San Diego County Water Authority and its 24 member agencies to raise awareness about the vital importance of safe and reliable water supplies to San Diego County’s economy and quality of life.Tourism, Manufacturing, Brewing and.....

UK: Measuring and improving the performance of overhead irrigation

This AHDB factsheet describes how water application rates and uniformity can be measured and improved for overhead irrigation systems for container-grown crops.It should be used in conjunction with the AHDB Horticulture Irrigation Calculator which enables irrigation distribution patterns to be viewed as a 3D.....

new liquid fertilizer Gold Leaf

Every essential nutrient buffered to the exact pH

A complete liquid fertilizer that contains every essential plant nutrient has been the ‘holy grail’ of liquid fertilizers for many decades. Many have tried to create such a product, all have failed. That is why the developers of “Gold Leaf” by Plater Bio claim to have reached a major achievement with the.....

US: Determining effective methods of irrigation as water becomes scarce

A recent study out of Texas A&M University focused on the practical applications of the global concern that potable water will become less and less accessible in the future. Melinda Knuth and her team engaged an examination of how to most efficiently divide this diminishing resource into uses (and.....

"Rising cost of both water and electricity influences quality and quantity of crops"

With the GreenTech coming up in June we're getting in touch with several horticultural know-it-alls, entrepreneurs, innovators and general greenhouse geeks. Today we present you Dick van Regteren of Genap. "Modern and well equipped greenhouses with high educated and loyal management have the future.....

Control Dekk OASIS

Innovative watering system: taking weight as starting point

VIDEO Do I give my baskets the right amount of water? It is a big guess for many growers and inspired Michigan growers Jared and Jordan Dekker of Dekker Brothers Greenhouse in Hudsonville. Together with Len Logsdon, they designed a watering solution for hanging baskets by using the weight as starting point. The.....

Pilot project: Optimizing RO processes

Evides Industrial Water (EIW) purchased new reverse osmosis (RO) pilot studies in early 2018 in order to further optimize their RO processes. The water company does a lot of research in this area. Internally they aim to continuously optimize the current water treatment processes and also to answer customer.....

Dealing with salty irrigation water

A number of growers have reported problems this spring related to irrigation water quality, particularly issues with high concentrations of sodium and chloride salts. For example, Figure 1 shows container-grown Astilbe at a perennial operation, where the margins of the older leaves appear “burned” (necrotic,.....

Tank supplier catches the eye of the wastewater industry

From 14-18 May 2018, the wastewater industry meets at the internationally important IFAT trade fair in Munich. New products in the fields of waste management, water treatment and biogas will be presented. Stallkamp shows its portfolio of reliable stainless steel tanks, separation technology and the.....

Paclobutrazol removal from irrigation water using granular activated carbon

Paclobutrazol is a commonly used plant growth regulator for controlling plant height, which has biological activity in the parts per billion range and a half-life in water of over 6 months. Pesticides such as paclobutrazol have potential to accumulate in recaptured irrigation water over time.A recently.....

Irrigation water quality and soil structural stability

The sustainability of irrigated agriculture depends on the quality of irrigation water used. The electrolyte concentration (EC) of irrigation water may lead to the accumulation of salts in the root zone layers and affect the physiological functions of the crop by osmotic and ion toxicity effects. Further,.....

The art and science of watering greenhouse crops

As the greenhouse fills up with plants, its important to take time to review watering principles with your seasoned and new employees. Consider using a numerical substrate moisture level scale to define how you want your team to irrigate crops.by Roberto G. Lopez - rglopez@msu.eduYou can teach employees how.....