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  Approaches to Managing Variability of Rice Growth and Yield quantity

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This report outlines investigations into the causes of in-field variability of rice crop growth and yield and management options for improving the poor yielding areas. Australian rice farmers use a high level of farm management including landforming and laser levelling of rice fields, fertiliser and water management to produce the highest yields in the world with a high level of water productivity. However, it is estimated that 10 percent of rice fields show significant spatial variability of establishment, growth and yield within rice fields that contributes to a reduction in overall rice yields.
This aim of this project was to identify the characteristics of rice growing soils in Southern New South Wales that may be responsible for the poor yielding areas in rice fields and identify appropriate soil ameliorants / approaches that farmers can use to overcome these limitations.