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Sustainable energy

Energy_webCarbon dioxide options for commercial greenhouses

The changing landscape of fossil fuels presents increasing business risks for Australian domestic industrial and commercial energy consumers. Rising costs and uncertain supply of natural gas (1) and the existing high price of Liquid Petroleum Gas (LPG) represent a significant portion of this risk. Adding complexity to this changing landscape is mounting international pressure on Australian policy makers to replace fossil-fuelled energy with renewable alternatives. Horticulturists use natural gas and LPG for greenhouse environment management and as a result are left exposed to an uncertain future.

By IAN GESCH See More

Ultrafiltration cleans up for hydroponic cucumbers

Cucumbers_webAll water used in a greenhouse and hydroponic system should be disinfected before use, and there is an extensive range of disinfection methods that could be used to treat water. In this article, the author gives a benefit cost assessment of ultrafiltration as a treatment option for water disinfection, a Horticulture Innovation Australia project undertaken by Primary Principles Pty Ltd.

by JEREMY BADGERY-PARKER See More

Harnessing the power of biomass

Hydroponic tomato grower Marcus Brandsema also sits on the board of Protected Cropping Australia (PCA).

Hydroponic tomato grower Marcus Brandsema sits on the board of Protected Cropping Australia (PCA).

In Tasmania, one grower is turning to Gasification Technology to power his farm’s greenhouses and reduce costs. By CHRISTINE BROWN-PAUL See More

Getting smarter

Sustainable Strawberry Project where Cravo’s retractable roof greenhouses are used to create a superior growing environment for strawberries.

Sustainable Strawberry Project where Cravo’s retractable roof greenhouses are used to create a superior growing environment for strawberries.

By 2020, the value of the worldwide smart greenhouse market is expected to reach more than USD 1.2 billion, as increasingly, greenhouse growers turn to new advances in technology for better and faster crop yields. By CHRISTINE BROWN-PAUL See More

HYDROPONICS: Great potential, but with challenges

Wageningen UR researcher Tycho Vermuelen examines a trial deep flow system.

Wageningen UR researcher Tycho Vermuelen examines a trial deep flow system.

In Europe, substrate culture and hydroponics are regarded as separate growing techniques, where substrate-less culture is known as hydroponics. In this article, the author examines the business case for developing new hydroponic systems that increase crop yields, and he highlights the bottlenecks and challenges for large-scale system developers.

By TYCHO VERMEULEN See More

From Soil to Substrate. . .

RABA_02The development of the berry industry in Australia
Raspberry and blackberry production under protected cropping in Australia is set to expand. The forecast growth will come from new higher yielding varieties, year-round production, and increasing consumer demand for fresh, healthy, convenient and tasty berries. By JONATHAN ECCLES See More

Flowers for bees

Honey bee on lavender.

Honey bee on lavender.

One of Melbourne’s largest florists is behind a movement to encourage more people to grow bee-friendly plants and flowers in their home gardens while at the same time reducing the use of pesticides. By CHRISTINE BROWN-PAUL See More

Autumn Woes: Root Rots

Root damage due to disease interferes with nutrient uptake, resulting in nutrient deficiency symptoms.

Root damage due to disease interferes with nutrient uptake, resulting in nutrient deficiency symptoms.

In New Zealand, Pythium and Phytophthora are waterborne plant pathogens that can be devastating in the hydroponics, seedling and nursery industries when drought-breaking rains arrive, usually in the autumn. Industry consultant JOHN WHITE describes his professional experience and highlights his preferred water disinfection method. See More

What is the future for hydroponic fertilisers?

How are hydroponic fertilisers made and what reserves are there for their future availability?

Answer by Rick Donnan

Introduction
Population predictions indicate that there will be a corresponding increase in the demand for food. In turn, because of a shrinking in good arable land, there will be an increasing demand for fertilisers to meet the food requirements. See More

South-East Asia Sojourn

Aeroponic seed potato production in Thailand overcomes constraints such as pest and diseases.

Aeroponic seed potato production in Thailand overcomes constraints such as pest and diseases.

Dr MIKE NICHOLS is an inveterate traveller, attending horticulture conferences around the world as a speaker and journalist. In this article, he visits Singapore’s Sky Green project and conducts a training course in Thailand on aeroponics seed potato production. See More

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