Tips and tactics: sunflower nutrition – Northern and Southern regions (Factsheet)
This Grains Research and Development Corporation (GRDC) factsheet provides practical guidance for growers and advisers on managing nutrition in sunflower crops in the Northern and Southern grain-growing regions of Australia. The factsheet outlines the key nutrient requirements of sunflowers, with a focus on nitrogen, phosphorus, potassium and sulfur. It explains how nutrient demand changes through the crop’s growth stages and how soil type, stored soil moisture, yield potential and seasonal conditions influence fertiliser decisions. The factsheet discusses soil testing and plant tissue sampling, nutrient removal rates, critical soil values and strategies for matching fertiliser inputs to expected yield. It also highlights the importance of avoiding excessive nitrogen, which can reduce oil quality. There is a table describing the impact of nutrient deficiency and toxicity on sunflowers and how they should be managed [PDF 1 MB, 6 pages].#
This is a carefully curated database of important soil resources. The data base is not exhaustive but rather a library of the resources we believe are the most useful for the audience. Each resource has been added after careful consideration against our selection criteria, including but not limited to its scientific validity, accessibility, and readability. The library generally does not include most academic research papers but may include some open-source papers written in accessible English.
Â
SSA reminds users that these resources are a guide only. Our understanding of soil science is improving continuously so it is important to check the suitability of the information for your purpose with an appropriately qualified professional such as a Registered Soil Professional or a Certified Professional Soil ScientistÂ
