Soil water repellence on sandy soils can be significantly reduced by incorporating clay with deep tillage, boosting crop productivity and profitability.
‘Crop circle’ artists from the University of Sydney’s IA Watson Grains Research Centre at Narrabri in north west New South Wales have been at it again, scribing the word SOIL! into a field of wheat stubble to mark the United Nations World Soil Day.
Grain growers in the southern cropping region who have experienced a dry growing season this year are being warned of a potential increase in the risk of some soilborne diseases in 2019.
Soil erosion management promises to be high priority for drought-impacted grain growers in New South Wales battling the effects of diminishing stubble cover on fallow cropping country.
This year’s desperately dry winter across the northern farming zone may have a small upside for some grain growers in New South Wales and Queensland with the potential for summer crop fertiliser budgets to be revised on failed cropping country.
New farming systems research on Queensland’s Darling Downs is working towards finding the impact of cropping rotations, intensity and nutrient strategies on productivity and sustainability.
Evidence suggests many crops across all rainfall zones are nitrogen deficient, and this is one of the major reasons why cereal yields are on average only half what they should be.
In the 19th century, the “rain follows the plough” myth was based on the theory that cultivation increased rainfall by moistening the soil and humidifying the atmosphere. Subsequent research has debunked the myth, finding there are three ingredients necessary to create rain: moisture, an upward motion of air and a source of water vapour.