Sulfur Coated Fertiliser Materials as Sulfur Sources for Rice under Flooded and Non-Flooded Conditions

Title
Sulfur Coated Fertiliser Materials as Sulfur Sources for Rice under Flooded and Non-Flooded Conditions
Publication Date
1998
Author(s)
Pitala, Joachim Aquinas
Blair, Graeme
Whitbread, Anthony
Till, Arthur Raymond
Type of document
Thesis Masters Research
Language
en
Entity Type
Publication
UNE publication id
une:9021
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.
Link

Files:

NameSizeformatDescriptionLink