News tagged with concentration

Drainage ditches can help clean up field runoff

Vegetated drainage ditches can help capture pesticide and nutrient loads in field runoff, U.S. Department of Agriculture (USDA) scientists report. These ditches—as common in the country as the fields they ...

Jan 04, 2013
5 / 5 (2) 0

Dairy study in top agriculture journal

Massey University researcher Dr Jean Margerison has had a research article accepted for publication in the prestigious Journal of Dairy Science.

May 30, 2013
not rated yet 0

Irregular decreases in aquifer oxygenation

In the course of the last few decades, the oxygen concentration levels in aquifers in the Swiss Plateau have dropped irregularly. Results of the National Research Programme "Sustainable Water Management" (NRP 61) suggest ...

Dec 03, 2013
3 / 5 (1) 0

Boosting crop yields in Australia

Andrew Hansen grows wheat, barley, canola, and oats on his farm at Coomandook in South Australia, where his family has farmed the land for more than 60 years. But now the family's way of life is threatened.

Jul 18, 2013
not rated yet 0

Smoke from Canada Observed in Europe

This summer, Canada is experiencing unusually extensive wildfires. This week alone, 341 new forest fires have consumed a total area of 616,000 hectares. The smoke clouds produced by the fires in Canada have ...

Jul 12, 2013
5 / 5 (4) 0

A layer of cool, healthy air

Stratum ventilation systems have been touted as a much more energy efficient system for cooling buildings such as school rooms and offices in hotter climes based on the provisions of the recent ANSI/ASHRAE 55-2010. They may ...

Dec 17, 2012
4 / 5 (1) 0