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nutritional deficiencies

Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Plants deficient in nitrogen (N) are stunted with pale green or yellow lower leaves, often with reddish tints and produce grain with low protein levels... Older cropped soils have less ability to mineralise nitrogen due to depleted soil organic matter levels... Dry seasons have less fallow mineralisation of nitrogen, while good moisture and warm soils encourage more nitrogen to be mineralised high levels of surface stubble, particularly when combined with zero tillage, which initially increase the nitrogen demand of the crop as fallow mineralisation of nitrogen has not occurred waterlogging during the later part of the fallow or early cropping period, which causes leaching or demineralisation losses of soil nitrogen...
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Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Plants deficient in nitrogen (N) are stunted with pale green or yellow lower leaves, often with reddish tints and produce grain with low protein levels... Older cropped soils have less ability to mineralise nitrogen due to depleted soil organic matter levels... Dry seasons have less fallow mineralisation of nitrogen, while good moisture and warm soils encourage more nitrogen to be mineralised high levels of surface stubble, particularly when combined with zero tillage, which initially increase the nitrogen demand of the crop as fallow mineralisation of nitrogen has not occurred waterlogging during the later part of the fallow or early cropping period, which causes leaching or demineralisation losses of soil nitrogen...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Plants deficient in nitrogen (N) are stunted with pale green or yellow lower leaves, often with reddish tints and produce grain with low protein levels... Older cropped soils have less ability to mineralise nitrogen due to depleted soil organic matter levels... Dry seasons have less fallow mineralisation of nitrogen, while good moisture and warm soils encourage more nitrogen to be mineralised high levels of surface stubble, particularly when combined with zero tillage, which initially increase the nitrogen demand of the crop as fallow mineralisation of nitrogen has not occurred waterlogging during the later part of the fallow or early cropping period, which causes leaching or demineralisation losses of soil nitrogen...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
While chickpeas are considered to have moderately high requirement for P, economic fertiliser responses to P are uncommon... The two exceptions are: soils with critically low P levels (below 6-8 mg P/kg, based on a Colwell test at 0-10cm) and no prior history of P fertiliser long fallow situations with low VAM levels (10 months or longer) even where soil levels are considered adequate... Some situations where N fertiliser may warrant consideration include: late plant situations where the crop can flower as quickly as 60 days, and rapid early growth is critical in achieving adequate height and sufficient biomass to support a reasonable grain yield...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
While chickpeas are considered to have moderately high requirement for P, economic fertiliser responses to P are uncommon... The two exceptions are: soils with critically low P levels (below 6-8 mg P/kg, based on a Colwell test at 0-10cm) and no prior history of P fertiliser long fallow situations with low VAM levels (10 months or longer) even where soil levels are considered adequate... Some situations where N fertiliser may warrant consideration include: late plant situations where the crop can flower as quickly as 60 days, and rapid early growth is critical in achieving adequate height and sufficient biomass to support a reasonable grain yield...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
While chickpeas are considered to have moderately high requirement for P, economic fertiliser responses to P are uncommon... The two exceptions are: soils with critically low P levels (below 6-8 mg P/kg, based on a Colwell test at 0-10cm) and no prior history of P fertiliser long fallow situations with low VAM levels (10 months or longer) even where soil levels are considered adequate... Some situations where N fertiliser may warrant consideration include: late plant situations where the crop can flower as quickly as 60 days, and rapid early growth is critical in achieving adequate height and sufficient biomass to support a reasonable grain yield...
Related categories: