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calcium carbonate

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Catalogue: GRDC Updates (West)
In summary, composts in soil management programmes (for horticulture): x Reduce nutrient leaching and consequent effects on water bodies... In summary, organic agriculture can provide yields similar to conventional agriculture using natural farm inputs in place of chemical fertilisers and sprays... The rots should be able to be minimised through good field practices, chemical control, gentle washing of carrots and keeping them cool and wet at all times...
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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...
Related categories:
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: GRDC Updates
Surface application of ammonium sulphate fertiliser on alkaline cropping soils of northwest NSW poses a high risk of volatilisation loss, particularly if there is calcium carbonate (lime) at the surface... We are currently testing a range of surface soil samples from across northwest NSW and will present some results of these in the talk... Following this we will assess volatilisation loss potential at a selection of these soils to gauge the potential for losses in typical cropping situations...
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