Summary
The three major soil series comprising the Gezira scheme (Sudan) are Hosh, Suleimi, and Laota. Surface soil samples from each soil series were employed to study the effect of soil moisture on the DTPA-extractable micronutrient cation under aerobic conditions. The study continued for 8 weeks using an incubation technique at two levels of soil moisture (continuously moist and moist/dry cycles). The DTPA-extractable Cu, Fe, Mn and Zn from air-dry soil samples were much higher compared to values from their incubated counterparts. For the three soils the CO2 production (microbial activity) reached the maximum in 5 weeks and then levelled off while the lowest values of micronutrient cation from the incubated soils were obtained between 2 to 8 weeks.
Generally, the study suggests that the hot dry months preceding crop growth should increase clay surface acidity and hence availability of mironutrient cations.
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References
Bartlett R and James B 1980 Stydying dried, stored soil samples — Some pitfalls. Soil Sci. Soc. Am. J. 44, 721–724.
Boken E 1958 Investigation on the determination of the available manganese content of soils. Plant and Soil 9, 269–283.
Bundy L G and Bremner J M 1972 A simple titrimetric method for determination of inorganic carbon in soils. Soil Sci. Soc. Am. Proc. 36, 273–275.
Christensen R C and Toth S J 1951 Soil manganese as influenced by moisture, organic matter and pH. Soil Sci. Soc. Am. Proc. 15, 279–283.
Fujimoto C K and Sherman G D 1945 The effect of drying, heating and wetting on the level of exchangeable manganese in Hawaiian soils. Soil Sci. Soc. Am. Proc. 10, 107–112.
Fujimoto C K and Sherman G D 1948 Behaviour of manganese in soils and the manganese cycle. Soil Sci. 66, 131–145.
Khan A 1979 Effect of moist incubation and microbial inhibition on changes in DTPA-extractable Mn. Comm in Soil Sci. and Plant Anal. 10(8), 1185–1193.
Khan A and Banwart W L 1979 Effect of incubation and microbial inhibition at field moisture capacity on changes in DTPA-extractable Fe, Zn and Cu in soils of varying pH. Comm in Soil Sci. and Plant Anal. 10(3), 613–622.
Khan A and Soltanpour P N 1978 Effect of wetting and drying on DTPA-extractable Fe, Zn, Mn and Cu in soils. Comm in Soil Sci. and Plant Anal. 9(3), 193–202.
Lebedjantzev A N 1924 Drying of soil as one of the natural factors in maintaining soil fertility. Soil Sci. 18, 419–447.
Lindsay W L and Norvell W A 1978 Development of a DTPA soil test for zinc, iron, manganese and copper. Soil Sci. Soc. Am. Proc. 42, 412–428.
Mortland M M and Raman K V 1968 Surface acidity of smectite in relation to hydration, exchangeable cation and structure. Clays and Clay Miner. 16, 393–398.
Musa M M 1968 Nitrogenous fertilizer transformation in the Sudan Gezira soil. I. Ammonia volatilization losses following surface application of urea and ammonium sulphate. Plant and Soil 28, 413–421.
Musa M M 1968 Nitrogenous fertilizer transformation in the Sudan Gezira soil. II. Nitrification of the urea and ammonium sulphate. Plant and Soil 29, 1–8.
Said M B 1972 Adsorption of urea by some Sudan soils. Plant and Soil 36, 239–242.
Sanchez C and Kamprath E J 1959 Effect of liming and organic matter on availability of native and applied manganese. Soil Sci. Soc. Am. Proc. 23, 302–304.
Soil Survey Staff. 1975 Soil Taxonomy, a basic system of soil classification for making and interpreting soil surveys. Soil Conserv. Serv. U.S. Dep. Agr. Handb. 436, U.S. Govt. Printing Office, Washing, D.C. 20402.
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Contribution from the Texas Agricultural Experiment Station, Texas A&M University, College Station. TX 77843, U.S.A.
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Adam, A.I., Anderson, W.B. Soil moisture influence on micronutrient cation availability under aerobic conditions. Plant Soil 72, 77–83 (1983). https://doi.org/10.1007/BF02185096
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DOI: https://doi.org/10.1007/BF02185096