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Fertilizers


Researchers discover greenhouse bypass for nitrogen

Removal of excess nitrogen (N) can best be achieved through denitrification processes that transform N in water and terrestrial ecosystems to di-nitrogen (N2) gas. The greenhouse gas nitrous oxide (N2O) is considered an intermediate or end-product in denitrification pathways. Both abiotic and biotic.....

Relationship between fertility extremes and growing medium pH

The pH of a growing medium increases or decreases depending on the fertilizer used, the crop grown, and the water alkalinity. However, pH change is usually gradual. When fertility levels in the growing medium are either very low or excessive, the pH of the growing medium can change rapidly. When the.....

How much acid is needed to reduce water alkalinity?

To limit the upward climb of your growing medium's pH, acid may need to be injected into your water to reduce excess alkalinity. Water alkalinity is a measure of the carbonates and bicarbonates in the water and acts just like limestone in the growing medium.The higher the alkalinity, the more “limestone”.....

Prehistoric compost could aid hydroponic plant growth

One Southwest Michigan biotech company wants to leverage a little-known chemical compound to capitalize on the hydroponic and cannabis industries. When AgTonik LLC incorporated in 2014, the company initially produced fulvic acid for use in the nutraceutical industry. Recently, the Kalamazoo-based biotech has.....

UNH research:

Microbial traits, not plants, determine abundance of soil organic matter

Healthy soil is rich in organic matter, but scientists have yet to fully understand exactly how that organic matter is formed. Now a team of University of New Hampshire scientists have uncovered evidence that microbial pathways – not plants – are the chief originator of the organic matter found in stable.....

Be cautious when using slow release fertilizers

Fertilization with slow-release fertilizers has recently caused some damage in horticulture, as reported by Agro Expertiseburo in its newsletter.Coated slow fertilizers are often used in horticulture. They have a long action period, whereby the fertilizers are supposed to be gradually released over time......

Prayon launches Calcium Nitrate Extra

The Prayon Group has added a new product to its Hortipray range of fertilisers: Calcium Nitrate Extra (17 - 0 - 0 + 33% CaO).Less water is more calciumPrayon’s Calcium Nitrate Extra is highly concentrated and perfectly soluble in water. Compared to standard calcium nitrate fertilisers, the calcium content.....

New ICL fertilizer combines nitrogen, calcium and magnesium

Calcium is essential for proper cell wall development in young plants, stems, terminal buds, bracts, flowers and fruit. Magnesium is a critical component of the chlorophyll molecule, the green pigment that creates energy for plants. Now, ICL Specialty Fertilizers’ Osmocote CalMag 9-0-0 blend is available to.....

Optimizing fertilizer rates for wild blueberry

The authors of a study in HortScience (September 2106) say that wild blueberry nutrient management varies considerably compared with typical tilled crop systems. According to the study, there is a "tremendous amount of uncertainty" in wild blueberry nutrient management as a result of dynamic interactions.....

US(TX): Fertilizer trials at Hort Americas demo greenhouse

Hort Americas has retrofitted a 12,000-square-foot greenhouse in Dallas, Texas, for the purpose of studying edible crop production in a variety of hydroponic production systems. The greenhouse is also being used to demonstrate products offered in the company’s online catalog.by David KuackTyler Baras, who is.....

Wijnand Sukkel, Wageningen Plant Research:

"We need a new approach for better soil"

‘Dutch agricultural soils are not future-proof’ was a widely accepted statement at the final meeting of the Public Private Partnership (PPP) Sustainable Soil. Breeders, chain partners, suppliers, the government and the science sector see a gradual deterioration in soil quality and are joining forces within.....

Haifa opens subsidiary in Turkey

Haifa Group announces the opening of Haifa Tarim, a new subsidiary in Antalya, Turkey. Haifa Tarim will serve the group's distributors in Turkey, and provide plant nutrition solutions to the local growers. The new subsidiary is led by Mr. Yasar Aydin, and supported by a team of agronomists and logistics.....

New research looks at how soil health changes over time

What’s in healthy soil?

Do the best yields come from the healthiest soil? Not necessarily. But new research suggests farm management practices can impact soil health – and improve a crop’s chance of thriving when times get tough.By Lisa McLean for AgInnovation OntarioDr. Amanda Diochon, a professor in the Department of Geology at.....

UK: GREATsoils workshops end year with trial demonstrations

The GREATsoils programme is running six field trials this year which aim to compare different soil assessment methods in horticultural systems during the 2016 and 2017 growing seasons.Following consultations in 2015, six growers from across the UK are taking part in the trial demonstrations, where they are.....