Journal ArticleDOI
Soil organic matter fractions as sources of plant-available sulphur
TLDR
In this paper, Pot culture experiments are described which attempt to identify the organic fractions of soil sulphur that decompose during the growing season to provide plant-available sulphur, and the effect of moisture stress on the uptake of sulphur by plants is also investigated; this treatment had little effect.Abstract:
Pot culture experiments are described which attempt to identify the organic fractions of soil sulphur that decompose during the growing season to provide plant-available sulphur. Soil organic matter was labelled with 35S by incubating soil with labelled sulphate and several organic sulphur fractions were determined before and after the growth of Sorghum vulgare and following a fallow treatment. The effect of moisture stress on the uptake of sulphur by plants was also investigated; this treatment had little effect. Changes occurred in both hydriodic acid-reducible and carbon-bonded sulphur fractions, 60 per cent of the sulphur taken up by the plants being derived from the latter. The changes in carbon-bonded sulphur involved changes in both Raney nickel-reducible and non-reducible sulphur fractions. All of the sulphur fractions investigated thus contributed available sulphur for plant uptake, and none of them are likely to be of any value for predicting the sulphur requirements of plants.read more
Citations
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Journal ArticleDOI
Comparative aspects of cycling of organic C, N, S and P through soil organic matter
W.B. McGill,C.V. Cole +1 more
TL;DR: In this paper, a conceptual model is proposed that C and N are stabilized together and mineralized through biological mineralization, whereas organic P (Po) and sulfate esters are stabilized independently of the main organic moiety and are mined through biochemical mineralization.
Journal ArticleDOI
Sulphur in crop production : invited paper
TL;DR: In this article, it is suggested to elaborate a sulphur test in field experiments with the most sensitive crop in rotation, like oilseed rape, to assist in identifying S deficiencies.
Journal ArticleDOI
Riding the sulfur cycle - metabolism of sulfonates and sulfate esters in Gram-negative bacteria
TL;DR: Increasing knowledge of the sulfur-regulated metabolism of organosulfur compounds suggests applications in practical fields such as biodesulfurization, bioremediation, and optimization of crop sulfur nutrition.
Journal ArticleDOI
The role of soil microbes in plant sulphur nutrition
TL;DR: The genes involved in the mobilization of sulphonate- and sulphate ester-sulphur by one common rhizosphere bacterium, Pseudomonas putida, have been investigated, suggesting that the ability to mobilize bound sulphur for plant nutrition is an important role of this species.
References
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Journal ArticleDOI
Microestimation of Sulfur in Plant Materials, Soils, and Irrigation Waters
C. M. Johnson,Hideo Nishita +1 more
Journal ArticleDOI
Some observations on the nature of organic sulphur compounds in soil
TL;DR: The chemical reduction of soils showing a range of properties with a mixture containing hydriodic acid resulted in liberation of hydrogen sulphide equivalent to, on the average, 59% of the total sulphur.
Journal ArticleDOI
Determination of total sulphur in soil and plant material
TL;DR: In this paper, a rapid and accurate method for the determination of the total sulphur content of soil or plant material is described, where the sample is heated with sodium bicarbonate and silver oxide at 550° for 3h, and the sulphur contents of the whole residue is reduced to hydrogen sulphide and determined as methylene blue.
Related Papers (5)
Comparative aspects of cycling of organic C, N, S and P through soil organic matter
W.B. McGill,C.V. Cole +1 more
Microestimation of Sulfur in Plant Materials, Soils, and Irrigation Waters
C. M. Johnson,Hideo Nishita +1 more