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Organic matter and soil fertility changes under irrigated pastures were followed for 5 years at Deniliquin, N.S.W. The effects of three annual pastures and of three perennial pastures were studied.… (More)
Three annual and three perennial pastures produced on a red-brown earth and consisting respectively of a legume, a grass, and the same grass supplied with fertilizer nitrogen were ploughed up and… (More)
Four consecutive wheat crops were grown after each of three annual and three perennial irrigated pastures, each group consisting of a legume, a grass, and the same grass supplied with fertilizer… (More)
The spectrofluorimetric determination of trace amounts of sulphide with mercury(II)-2,2′-pyridylbenzimidazole is described. The sulphide can be determined in solutions with concentrations in the… (More)
Abstract The spectrofluorimetric determination of nanogram amounts of gallium, indium and zinc with 2,2'-pyridylbenzimidazole is described. Zinc can be determined in the range 15–800 ng/ml, gallium… (More)