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soil compaction

Catalogue: Broadacre Field Crops DAFF QLD
Subsoil acidity is becoming a real problem on many scrub soils and may be constraining plant growth... Toxicities of aluminium and/or manganese can reduce plant growth in acid soils... The rates of acidification in any soil type can be minimised by replacing the basic nutrients removed in crop produce (e.g. calcium, magnesium and potassium) as part of a fertiliser program, and by minimising the losses of soil nitrate by leaching via appropriate rotations of legume and cereal grain crops...
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Catalogue: Broadacre Field Crops DAFF QLD
Subsoil acidity is becoming a real problem on many scrub soils and may be constraining plant growth... Toxicities of aluminium and/or manganese can reduce plant growth in acid soils... The rates of acidification in any soil type can be minimised by replacing the basic nutrients removed in crop produce (e.g. calcium, magnesium and potassium) as part of a fertiliser program, and by minimising the losses of soil nitrate by leaching via appropriate rotations of legume and cereal grain crops...
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Catalogue: Broadacre Field Crops DAFF QLD
Subsoil acidity is becoming a real problem on many scrub soils and may be constraining plant growth... Toxicities of aluminium and/or manganese can reduce plant growth in acid soils... The rates of acidification in any soil type can be minimised by replacing the basic nutrients removed in crop produce (e.g. calcium, magnesium and potassium) as part of a fertiliser program, and by minimising the losses of soil nitrate by leaching via appropriate rotations of legume and cereal grain crops...
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Catalogue: Nuffield Scholar Reports
The system may allow continual cropping but it does not really allow the soil to fully recover... I always believed that wild radish germinated because we cultivated the soil... If we are going to use plants to improve our soil structure then we need those plants to grow at their maximum potential...
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Catalogue: GRDC Updates (West)
Impact of soil inversion, soil dilution and claying on non-wetting sandplain soils Stephen Davies, Peter Newman and Breanne Best, Department of Agriculture and Food, Western Australia.. Soil penetration resistance was measured with a Rimik CP40 cone penetrometer when the soil was at field capacity in both trials... The soil pH deeper in the soil profile was not measured at the time but is assumed to increase to around 5, which is typical for the soil type...
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Catalogue: GRDC Factsheets
Deep ripping not appropriate for all soil types A comprehensive understanding of the cause and location of high soil strength is required before undertaking deep ripping as research has shown it is does not provide an economic solution in some soil types... KEY POINTS Deep ripping of compacted soils is most likely to improve grain yields on sandy soils and where compaction has occurred on upper parts of the soil profile through machinery traffic or livestock trampling... Overall, compacted subsoils impede root growth, causing reduced plant vigour and poorer water-use efficiency as roots have limited access to water and nutrients, especially in the subsoil...
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Catalogue: GRDC Factsheets
There is a renewed interest in the value of livestock as a risk management tool in the wake of escalating crop input costs, climate variability and fluctuating commodity prices... Negative impacts of livestock on soil structure and surface cover must be balanced against consumer demands and constraints of no-till cropping, including weed control issues, lack of soil cover and disease... Integration of livestock in no-till systems - possible pros and cons advantages: non-chemical control of pests including herbicide-resistant weeds; increased biodiversity in plant and soil communities; higher soil organic carbon levels; more available nutrients (nitrogen); and use of excess crop residues and failed crops...
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Catalogue: Online Farm Trials
Download the trial report to view additional trial information.. Available water capacity computed for each of the specified depth increments.. Effective depth in cm as defined in the USDA Soil Survey Manual...
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Catalogue: GRDC Final Reports
Improving compacted soils in the eastern wheatbelt.. The pore spaces between soil aggregates are enlarged and can hold and conduct more water increasing the ability of the soil to store and supply water... A combination of deeper ripping and closer tine spacing can give larger yield increases...
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