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Research Matters - Improving organic manure

26 Aug 2011

Excessive use of synthetic fertilisers has led to the leaching of nutrients into local watercourses with consequent damage to native ecosystems. Greater efficiency in the use of fertilisers is required both in conventional and organic systems of cropping.

Science Into Practice - Reducing losses in conifer dieback

05 Aug 2011 | by HDC

Conifer growers have reported root rot and die-back problems for many years. Species of Phytophthora, and to a lesser extent species of Pythium, are recognised causes.

Research Matters - New plants for green roofs

27 May 2011 | by Dr Ken Cockshull

Green roofs provide an eco-friendly way of cooling buildings but the roof environment is a tough one for plants. While succulents such as Sedum spp. seem well-suited to it, a roof consisting only of sedums can present a rather bland appearance.

Research Matters... Other species for green roofs

16 Apr 2010 | by Dr Ken Cockshull

The main reason for growing on roofs is that the plants will absorb solar radiation and use much of that absorbed energy to evaporate water. This has the benefit of cooling the roof, which reduces the cost of air-conditioning within the building and improves the local environment around it.

Research matters ... salt tolerance in shrubs

12 Mar 2010 | by Dr Ken Cockshull

As competition for water supplies increases, growers may soon be obliged to water their ornamental shrubs with saline water.

Science into practice: improving plants with irrigation management

12 Mar 2010 | by HDC

Testing potential for the use of regulated deficit irrigation (RDI) as a tool to manage plant quality for the hardy nursery stock sector was the aim of HDC project HNS 141.

Research matters... green roofs: substrate depth

05 Jun 2009 | by Dr Ken Cockshull

Green roofs are one means by which the vegetation that is destroyed during a building's construction can be partially replaced.

Root zone can remove aerial pollutants

04 Sep 2008 | by Dr Ken Cockshull

It is widely recognised that some potted plants have the ability to absorb aerial pollutants. Consequently, such plants can be used to improve air quality in buildings.

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