Summary
A study conducted in pots to evaluate the effect of different Mg/Ca ratios (2, 4, 8 and 16) and electrolyte concentrations (20 and 80 meq/l) at SAR 10 in irrigation water on the nutrient uptake and yield of wheat crop in two soils revealed that the average grain and dry matter yields of wheat decreased significantly with an increase in Mg/Ca ratio in irrigation water, but the magnitude of decrease was greater at higher electrolyte concentration than at lower electrolyte concentration. The concentration of Na in both straw and grain of wheat increased and that of K decreased with an increase in Mg/Ca ratio and electrolyte concentration of irrigation water, which led to higher Na/Ca and Na/K ratios in the plant. Further, the concentration of Ca and Mg both in straw as well as in grain increased with increasing electrolyte concentration of the irrigation water. An increasing proportion of Mg in saline irrigation water resulted in decreased concentration of Ca and increased concentration of Mg in both straw and grain of wheat crop. It was also noticed that the increasing proportion of Mg over Ca in the poor quality irrigation water increased the P content of both straw and grain of wheat crop.
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References
Carter M Ret al. 1978 Calcium deficiency in some solonetzic soils of Alberta. XIth Congr. ISSS, Canada.
Fageria N K 1974 Absorption of Mg and its influence on the uptake of P, K and Ca by intact groundnut plants. Plant and Soil 40, 313–320.
Finck A 1977 Soil salinity and plant nutritional status. Proc. Intern. Salinity Conf. Texas Univ. Lubbeck, pp 199–210.
Girdhar I K and Yadav J S P 1980 Effect of different Mg/Ca ratios, SAR values and electrolyte concentrations in leaching water on dispersion and hydraulic conductivity of soil. Int. Symp. Salt Affected Soils, Karnal, 1980, 202–209.
El Gabaly M M 1955 Specific effects of adsorbed ions on plant growth. I. Effect of different combinations of calcium, magnesium and sodium on barley seedlings. Soil Sci. 80, 235–248.
Hipp B W and Gierard C J 1969 Mg−P inter-relationship in tomatoes, Agron. J. 61, 403–405.
Hunter A S 1949 Yield and composition of Alfalfa as affected by variations in the Ca−Mg ratio in the soil. Soil Sci. 67, 53–62.
Jacob A 1958 Magnesium, the fith major plant nutrient. Staples Press Ltd., London.
Kanwar J S and Chaudhary M L 1968 Effects of magnesium on the uptake of nutrients from the soil. J. Res. Pb. Agric. Univ 5, 309–319.
Khan M V and Saxena S N 1974 Effect of quality of irrigation water on dry matter production and on calcium, magnesium and phosphorus content of wheat, barley and pea. Ann. Arid Zones, 13, 11–16.
Leggestt J E and Gilbert W A 1969 Magnesium uptake by soybeans. Plant Physiol. 44, 1182–1186.
Mazaeva M M 1969 Ca−Mg antagonism and Ca requirements of plants to which Mg fertilizers are applied. Soil Fert. Abstract 32, 3865.
Richard L J 1954 Diagnosis and improvement of saline alkali soils. USDA Handb. 60.
Schwartz S and Kafkafi U 1978 Mg, Ca and K status of silage corn and wheat at periodic stages of growth in the field. Agron. J. 70, 227–231.
Trough Set al. 1947 Magnesium-phosphorus relationship in plant nutrition. Soil Sci. 63, 19–25.
Yadav J S P and Girdhar I K 1980 Effect of varying Mg/Ca ratio and electrolyte concentration in the irrigation water on the soil properties and wheat crop. Plant and Soil 56, 413–418.
Yadav J S P and Girdhar I K 1981 Effect of different Mg/Ca ratios and SAR values of leaching water on the properties of calcareous v/s non-calcareous soil. Soil Sci. 131, 194–198.
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Girdhar, I.K., Yadav, J.S.P. Effect of different Mg/Ca ratios and electrolyte concentrations in irrigation water on the nutrient content of wheat crop. Plant Soil 65, 63–71 (1982). https://doi.org/10.1007/BF02376803
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DOI: https://doi.org/10.1007/BF02376803