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Tag archive: fertiliser

Think twice before sowing chickpeas into high Nitrogen soils

leaf tips are dead

The current temptingly high chickpea prices make them an attractive option. In paddocks with high soil nitrate (>100kg N/ha) chickpeas may not yield as well as expected, or deliver the usual legume break crop advantage of a net benefit to the paddock’s nitrogen (N) balance. Paddocks can have high starting […]

Give seeds the best chance by avoiding fertiliser damage

Germinating seeds can be damaged by fertiliser placed too close or applied at too high rates. You can check how much fertiliser you can safely drill using the seed damage calculator. The amount of fertiliser that can be safely placed with seed depends on: Crop type Overall canola and lentils […]

How to review Nitrogen nutrition at 3 timely points in the season

John Angus is a researcher with the CSIRO and a mixed enterprise farmer in southern NSW. At the 2016 GRDC research updates John reported on a three stage process to make strategic decisions about Nitrogen (N) nutrition through the season for dryland farmers. Stage 1 – Prior to sowing Prepare […]

Test first, then time Nitrogen fertiliser to reduce losses

Optimal timing of Nitrogen fertiliser applications can maximise crop uptake and reduce losses to the atmosphere. Soil Nitrogen (N) dynamics in Victoria show some big differences between regions. High rates of N losses recorded from soils in the High Rainfall Zone (HRZ) emphasise how important timing of N applications can […]

Watch our webinar: how to review last season’s crop nutrition decisions

You might know how much you or your client spent on crop nutrition last season, but do you know if it was well spent? Review at the end of the season is the best place to answer that question. How do you assess how well last season’s crop nutrition management […]

N-rich strips show if your crop needs a boost this season

  An N-rich test strip in your paddock allows you to follow nitrogen supply in-crop, and see what responses are likely to additional N. The test strip is a part of the paddock where additional N is applied – above the base rate applied to the rest of the paddock. […]

What’s the minimum Phosphorus rate if you are following a poor crop?

Many growers will be thinking about what to do with Phosphorus (P) fertiliser for their next winter crop. Soil tests are the best indicator of whether a paddock is going to be responsive to P fertiliser. If your soil tests shows moderate to good levels of P, and yields were […]

Opportunities to optimise fertiliser investment – Parkes NSW

Fertiliser is a key component of crop input budgets. Key messages from the GRDC’s More Profit from Crop Nutrition (MPCN) initiative will be shared at workshop at Parkes NSW on March 9. Industry experts on soil and crop nutrition issues will present recent findings and discuss opportunities to optimise fertiliser […]

Reducing Nitrogen losses in the High Rainfall Zone of Victoria

Strategies to reduce Nitrogen (N) losses in Victorian High Rainfall Zone (HRZ) cropping systems are getting clearer. Recent research in south western Victoria examined rates of N applied, placement of fertilisers and nitrification inhibitors. This work is part of the national agricultural nitrous oxide research program, supported by the GRDC. […]

Webinar – get more profit from nitrogen with price ratios

A free, online webinar to explain the concept of an economically optimum nitrogen rate. The optimum is derived using a ratio of the price of wheat to the price of nitrogen. This framework can help growers and advisors achieve better returns on nitrogen expenditure when used in conjunction with N […]

Potassium and crop stress

Crops may need extra Potassium when they under stress from drought or frost. There is a theoretical basis, and now GRDC funded research is looking into whether applying additional potassium is worthwhile when plants are under stress. Getting the right combination of drought and frost conditions to get meaningful results […]

Using deep soil cores for Nitrogen, Potassium & Sulfur

Soil testing is a valuable tool for crop nutrition decision making. The standard 0 – 10cm soil test doesn’t always tell us enough about the crop availability of more mobile nutrients. Nitrogen and Sulphur, as anions (negatively charged), tend to move deeper into the profile with rainfall. On sandy acid […]