ISSN:
1573-5036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary In studies on the effect of potassium and nitrogen fertilizers on ionic relations inPanicum maximum var.trichoglume cv. Petrie (green panic) most of the non-volatile organic acids that accumulate in this species have been identified and the effect that variations in inorganic nutrition have on the relative amounts of these acids accumulated ascertained. Increasing levels of nitrogen lowered the ratio of monovalent to divalent cations in the plants and increased their total cation concentrations. A deficit of inorganic anions (C-A) that ranged from 747 to 1010 meq/kg dry weight was found in the plant tops. Much of this deficit was balanced by accumulation of oxalate, aconitate, citrate, malate, quinate and an unknown organic anion. The relative contributions that these six organic anions made towards maintenance of ionic balance was altered by changing the levels of potassium and nitrogen supplied to the plants.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02149745
