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forest gravel

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Catalogue: Ground Cover
Research explores forest gravel water repellence.. Forest gravel soils often have a high percentage of gravel in the topsoil and a sandy or loamy matrix.. With GRDC funding, Department of Agriculture and Food, Western Australia (DAFWA) researchers are investigating the most suitable short-term mitigation and longer-term amelioration tactics to manage water repellence, improve crop nutrition - especially phosphorus availability - and lift the productivity of these forest gravels...
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Catalogue: GRDC Media
DAFWA researcher Derk Bakker after digging in a ‘flume’ to measure water run-off and making channels across the trial plot to trap the water... "Non-wetting soils - caused by the presence of waxy surfaces on the sand particles - can be a major impediment to crop germination and productivity in many WA soils, including forest gravels," Dr Bakker said... "While the plough did not greatly improve the wettability of the soil, the cultivation facilitated root growth and improved water penetration, which would have enhanced the accessibility of phosphorus to crops," Dr Bakker said...
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Catalogue: GRDC Media
Lime and cultivation can boost yields on forest gravels.. "The trials have explored opportunities to reduce the impact of non-wetting and soil acidity and their effect on phosphorus availability," said Department of Agriculture and Food (DAFWA) researcher Derk Bakker, who presented results to Perth's 2014 Agribusiness Crop Updates... "Beneficial results were also achieved on particularly gravelly soils."..
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Catalogue: GRDC Media
Lime and cultivation can boost yields on forest gravels.. "The trials have explored opportunities to reduce the impact of non-wetting and soil acidity and their effect on phosphorus availability," said Department of Agriculture and Food (DAFWA) researcher Derk Bakker, who presented results to Perth's 2014 Agribusiness Crop Updates... "Beneficial results were also achieved on particularly gravelly soils."..
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Catalogue: GRDC Updates (West)
KNIFE POINTS KNIFE POINTS.. Fine repellent dry soil 'boils' up in front of the almost vertical point face and runs behind the point into the seed slot.. The small wings behind the point push up the soil beside the point and increase the slope...
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Catalogue: GRDC Media
DAFWA researcher Derk Bakker after digging in a ‘flume’ to measure water run-off and making channels across the trial plot to trap the water... "Non-wetting soils - caused by the presence of waxy surfaces on the sand particles - can be a major impediment to crop germination and productivity in many WA soils, including forest gravels," Dr Bakker said... "While the plough did not greatly improve the wettability of the soil, the cultivation facilitated root growth and improved water penetration, which would have enhanced the accessibility of phosphorus to crops," Dr Bakker said...
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