N Management by old ‘rules of thumb’ could be high risk
Simple, local options to manage this risk based on measurement and best science are now available with Opterra Cotton Nutrition.
|What can it tell me to help manage N?
|When is it most useful?
|In crop deep N soil test
|How much N can the soil supply, fine-tune seasonal N fertiliser rate
|Post-plant to squaring
|Crop N health based on growth rate and plant N stored to date
|All growth stages
|Petiole (leaf stalk)
|Is the soil N supply matching the crop growth rate recently? Fine-tuning the timing of post-plant N. Avoid excess plant vigour and quality defects at defoliation.
|Squaring till 4 weeks post first flowers. Crop cut-out
Read on for more!
|How does it work for in-crop Nutrition?
|With Opterra Cotton Nutrition you only have 2 steps:
Compare this with the extra work in completing lab forms, packaging/arranging freight, inputting data and creating reports.
|Saves you time (hours with each sampling)
|You will receive the interpreted seasonal status report for the field within 2 working days for petioles and 4 days for leaf blades. Important: These services continue to operate during the Christmas-New Year critical growth period for summer cropping.
|Plant Samples are dried locally to ensure against plant sap leakage which can occur in any long transit to lab analysis. Sample cooler boxes are available from each service provider.
|No sample degradation in transit to the lab
|You have access to Dr Chris Dowling from Back Paddock for email and phone contact with any agronomic queries that arise from test results.
|The industry’s leading independent technical support
This service supports local, technology-based employment in rural communities, helping to build regionally-based capabilities for productivity and natural resource accountability in agriculture.
- Optimise yields and nitrogen costs
- Contribute to cotton industry’s environmental stewardship and emissions reduction goals – ‘measure’ and aim for Nitrogen Use Efficiency (NUE)
- “… five years to 2018-19, on average almost 60 per cent of the emissions to grow and ship to port a bale of cotton came from nitrogen fertiliser”https://www.cottoninfo.com.au/blog/2021-sustainability-focus-april-less-emissions-more-sequestration
- Help ensure against late season lint quality penalties
Petiole Nitrogen Management report:
Leaf blade crop nutrition ‘health’ & N stored report: