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mn deficiency

Catalogue: GRDC Updates
I do believe that we need to develop farming systems which cycle P more efficiently... Both Zn and Cu will remain available to crops and pastures for long periods (up to 10 years for Zn and up to 40 years for Cu) following a recommended rate of application to soil... Due to the increased complexity of management in our current cropping systems and increased costs of fertilisers, there is a greater need for crop monitoring to help make informed nutritional decisions...
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Catalogue: GRDC Media
Research is showing that increased lime use across WA is affecting micronutrient concentrations in crop plants and changing the residual value of these nutrients on acid soils... To assess the micronutrient status of cereal crops, samples of flag leaves are the best bet for tissue testing analysis... Dr Brennan, of the Department of Agriculture and Food WA (DAFWA), says the MPCN team is also finding that liming on acid soils reduces Cu, Zn and Mn concentrations but increases Mo in crop plants and can change the residual value of micronutrients...
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Catalogue: GRDC Media
Research is showing that increased lime use across WA is affecting micronutrient concentrations in crop plants and changing the residual value of these nutrients on acid soils... To assess the micronutrient status of cereal crops, samples of flag leaves are the best bet for tissue testing analysis... Dr Brennan, of the Department of Agriculture and Food WA (DAFWA), says the MPCN team is also finding that liming on acid soils reduces Cu, Zn and Mn concentrations but increases Mo in crop plants and can change the residual value of micronutrients...
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Catalogue: GRDC 2014 Research Summaries
About 8 million hectares of Western Australia (WA) were inherently deficient in micronutrients (copper (Cu) and zinc (Zn) and molybdenum (Mo) and to a lesser extent manganese (Mn)... If untreated can result in widespread and severe nutrient deficiencies, including those caused by poor supply or use of micronutrients... There is also increasing concern that micronutrient supplies from the soil may no longer be adequate for current cropping systems that are more productive, more intensive and more reliant on supplies of fertiliser N and P. These concerns are often coming from districts where micronutrient deficiencies have not been thought to be a problem in the past...
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