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Title: Sulfur Coated Fertiliser Materials as Sulfur Sources for Rice under Flooded and Non-Flooded Conditions
Contributor(s): Pitala, Joachim Aquinas (author); Blair, Graeme  (supervisor); Whitbread, Anthony (supervisor); Till, Arthur Raymond (supervisor)
Conferred Date: 1998
Copyright Date: 1997
Open Access: Yes
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Abstract: Sulfur (S) deficiency in crop production has been reported in many parts of the world and has resulted in a decline in both crop yield and quality. This has eventuated as a consequence of a number of factors including the increasing use of high analysis fertilisers such as urea, triple superphosphate (TSP), mono- and di-ammonium phosphate which contain little or no sulfur. As the need for S increases to counter the S deficiencies, many attempts have been made to use elemental S (S°) to supply crop demand. Since plants use only the SO₄²⁻-S, S° needs to be oxidized before a plant can utilize the S0₄²⁻-S. In the recent past, the use of S° as a source of S for crops has increased significantly. Coating of fertiliser materials with S° has been introduced to Deliberately supply S to plants and these employ finely divided S bound to granular products with various binders such as lignosulfonate, formaldehyde and so forth. This has resulted in the production of a number of S° coated fertilisers. This study was thus undertaken to investigate the effectiveness of a range of S coated TSP fertiliser materials in rice under flooded and non-flooded conditions.
Publication Type: Thesis Masters Research
Rights Statement: Copyright 1997 - Joachim Aquinas Pitala
HERDC Category Description: T1 Thesis - Masters Degree by Research
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