AN APPROACH TO THE IDENTIFICATION OF POTENTIALLY TOXIC CONCENTRATIONS OF MANGANESE IN SOILS

被引:16
作者
GOSS, MJ
CARVALHO, MJGPR
COSIMINI, V
FEARNHEAD, ML
机构
[1] Soil Science Department, AFRC Institute of Arable Crops Research, Harpenden, Hertfordshire, AL52JQ, Rothamsted Experimental Station
[2] The Macaulay Land Use Research Institute, Aberdeen, AH9 2QJ, Craigiebuckler
[3] Department of Crop Science, University of Evora
[4] University, Guelph, Ontario, NIG 2W1, Richards Building
关键词
D O I
10.1111/j.1475-2743.1992.tb00891.x
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
The tolerance of wheat plants to manganese is shown to depend on the magnesium concentration in shoot tissue, such that growth is a function of the ratio of the two ions Mg:Mn. This ratio in the plant (R(p)) and in the soil solution (R(s)) was related by the equation: ln R(p) = 1.45 + 0.31 ln R(s). Values of R(p) not limiting to growth need to be determined for different crops, but we conclude that corresponding values of R(s) can be predicted using solution culture trials. They can then be used to identify remedial treatments in soils where manganese toxicity occurs. In the Eutric Cambisol examined, small amounts of calcium carbonate decreased manganese concentrations in the soil solution such that amounts of magnesium which could easily be applied to a field gave appropriate values of R(s) for wheat.
引用
收藏
页码:40 / 44
页数:5
相关论文
共 6 条
[1]  
FAO‐UNESCO soil map of the world: revised legend, World Soil Resources Report, 50, (1988)
[2]  
Goss M.J., Carvalho M.J.G.P.R., Manganese toxicity: the significance of magnesium for the sensitivity of wheat plants, Plant and Soil, 139, pp. 91-98, (1992)
[3]  
Horst W.J., The physiology of manganese toxicity, Manganese in soil and plants, pp. 175-188, (1988)
[4]  
Reisenauer H.M., Determination of plant‐available soil manganese, Manganese in soil and plants, pp. 87-98, (1988)
[5]  
Schlichting E., Sparrow L.A., Distribution and amelioration of manganese toxic soils, Manganese in soil and plants, pp. 277-292, (1988)
[6]  
Zarcinas B.A., Cartwroght B., Spotncer L.R., Nitric acid digestion and multi‐element analysis of plant material by inductively coupled plasma spectrometry, Communications in Soil Science and Plant Analysis, 18, pp. 131-146, (1987)