critical range for Mn in soils is 2.5-4.5 ppm for all plants as an average, but what is the exact amount of DTPA extractable Mn in soil for wheat crop
The problem is not the soil magnesium content but the readiness (depending on the degree of reaction) and then the magnesium content of the soil
https://www.agric.wa.gov.au/mycrop/diagnosing-manganese-deficiency-wheat
Article Methods and rates of application of Mn and its critical leve...
http://www.publish.csiro.au/CP/AR9850145
interested
Yield Adequate amount of manganese (ppm) Yield response to fertilizer Corn 150-30 medium Soybeans 20-100 High alfalfa 30-100 Medium Wheat 20-200 High sugar beet 150-30 High White corn 1890-1 High Cotton 25-350 Low Potato 30-200 Medium
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