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On-farm trials key to variable rate success

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Variable-rate application of some farm inputs offers northern region grain growers cost benefits and improved yields but simple on-farm trials are the key to local success... A new Grains Research and Development Corporation (GRDC) fact sheet outlines how, when and where to vary application rates of inputs such as seed, fertiliser, soil ameliorants such as lime or gypsum, desiccants and growth regulators... When considering variable-rate application, question whether variation exists...
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