3. Which experimental sites would you like to draw data from?
5. Based on your selections, the resulting gross margins are:
This project aims to support growers in the southern NSW grains region to achieve greater water-limited production potential by adjusting their cropping system and agronomic decisions. Four sites established in 2018 cover soil and climate variability across southern NSW at Greenethorpe, Wagga Wagga and Condobolin (high, medium and low rainfall sites on red acidic loam soils), and a fourth site on a sodic clay vertosol at Urana. This project is a collaboration between CSIRO, NSW DPIRD and GRDC. GRDC Code: CSP2407-002RMX.
This calculator displays only timely sown, decile 5 nitrogen strategy crop sequences. Four-year sequences gross margins are extrapolated from three-year sequence data.
Average annual rainfall 2018-2025: 631 mm
Average growing season rainfall (April-October) 2018-2025: 340 mm
Soil type: Red to Brown Kandosol
Soil organic carbon (0-10 cm): 1.57 %
Soil ECEC (0-10 cm): 11.3 cmol(+)/kg
Average annual N rate in the decile 5 N strategy 'Canola-Wheat-Barley' sequence: 92 kg N/ha/year
Key features: Acidic stratified layer at 10-15 cm with a pH (CaCl2) of 4.4 and exchangeable aluminium of TBC. This was ameliorated with lime and deep tillage in January 2021.
Average annual rainfall 2018-2025: 578 mm
Average growing season rainfall (April-October) 2018-2025: 288 mm
Soil type: Red Kandosol
Soil organic carbon (0-10 cm): 0.97 %
Soil ECEC (0-10 cm): 7.3 cmol(+)/kg
Average annual N rate in the decile 5 N strategy 'Canola-Wheat-Barley' sequence: 111 kg N/ha/year
Key features: Acidic stratified layer at 10-15 cm with a pH (CaCl2) of 4.5 and exchangeable aluminium of 9.8 %. This was ameliorated with lime and deep tillage in February 2024.
Average annual rainfall 2018-2025: 434 mm
Average growing season rainfall (April-October) 2018-2025: 216 mm
Soil type: Grey Vertosol
Soil organic carbon (0-10 cm): 1.34 %
Soil ECEC (0-10 cm): 28.4 cmol(+)/kg
Average annual N rate in the decile 5 N strategy 'Canola-Wheat-Barley' sequence: 91 kg N/ha/year
Key features: Exchangeable sodium percentage (ESP) increasing at depth. 3.4 % at 0-10 cm and 15.6 % at 30-60 cm.
Average annual rainfall 2018-2025: 523 mm
Average growing season rainfall (April-October) 2018-2025: 236 mm
Soil type: Red Chromosol
Soil organic carbon (0-10 cm): 1.22 %
Soil ECEC (0-10 cm): 12.2 cmol(+)/kg
Average annual N rate in the decile 5 N strategy 'Canola-Wheat-Barley' sequence: 82 kg N/ha/year
Key features: Acidic stratified layer at 10-20 cm with a pH (CaCl2) of 4.8 and exchangeable aluminium of 2.8 %. This was ameliorated with lime and deep tillage in February 2024.
This gross margin calculator is provided for general information and educational purposes only. The results are estimates based on experimental results combined with the data you provide. This tool does not constitute financial, legal, or tax advice. While we strive to provide accurate calculations, we make no representations or warranties about the accuracy or completeness of the results. You should consult with a professional accountant or financial advisor before making any business or pricing decisions. “Rotate ‘n’ Calculate” is not liable for any financial losses or damages arising from the use of this calculator.