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Tag archive: fertiliser

How to reduce leaf damage when foliar feeding

Foliar feeding applies nutrients to the leaf surface for direct uptake through the leaves. It can be a practical method for correcting in crop nutrient deficiencies that have been diagnosed by plant tissue testing, following periods of waterlogging, or during short periods of dry soil when nutrients are stranded (provided […]

How to choose the best way to manage zinc deficiency

Zinc seed dressings can effectively supply zinc to a young crop. The amount of nutrient that can be applied in a seed dressing depends on the size of the seed. Small seeds can carry less of the coating media than large seeds. Seed dressings do not apply sufficient zinc to […]

Latest expert advice on deep banded fertiliser

Deep banding of phosphorus (P) and potassium (K) fertilisers has shown promising yield responses in some settings, but not in others. Deep-banding trials across Queensland and New South Wales have shown that banding rarely reduces crop yield, but it doesn’t always lead to profitable yield increases. Some of the variability […]

Compost for agriculture – free training for advisors

A series of Fertcare® workshops across NSW will provide insight into the  benefits and impacts  of using composts in agricultural production, and skills in advising their use alongside conventional fertilisers. This free training is aimed at agronomists providing detailed soil and plant nutrition advice. The workshops are delivered by NSW […]

The good, the bad and the ugly of topdressing opportunities

Topdressing decisions have to be made or revised, as the season progresses. The best nutrient use efficiency is achieved when nutrient supply matches crop demand. Splitting N applications through the season can better match crop demand than applying all N upfront, and allows some of the expense to be deferred […]

Root systems that respond to banded fertilisers

Crop varieties that can exploit fertiliser placed in bands could be crucial to future cropping yields and fertiliser use efficiency. Many of our cropping systems are slowly running down the native soil fertility. Ongoing cropping in these soils could depend more and more on nutrients placed into the soil as […]

Timing is more important than form with nitrogen

Getting the timing right for topdressed N fertiliser to best match crop demand is more important for N use efficiency than choosing the right N fertiliser form. Field experiments generally show that granular urea, urea solutions and UAN perform equally well in supplying N when used in-crop. The most common […]

How to include ammonium-N in recommendations

It used to be that nitrate was often the only form of nitrogen (N) specified in soil test results. Now it’s common for soil test results to specify the quantity of ammonium-N as well. Recently some unusually high ammonium levels – equal to or higher than nitrate levels – have […]

Three reasons why topdressing Nitrogen can fail

A crop’s nitrogen (N) requirement rises when rainfall increases the yield potential. Applying more N fertiliser to meet greater plant N demand is often appropriate, but crop uptake is not guaranteed. Understanding why can help tailor topdressing practices to increase the chances of the applied N boosting crop yield and […]

How to protect livestock from nitrogen toxicities

Stock grazing crops high in nitrate can develop toxicity disorders. Plant nitrate levels are directly affected by nitrogen (N) fertiliser rates. Targeting high grain yields with additions of nitrogen fertiliser can elevate nitrate levels in plants to dangerous levels for livestock. What can be done to reduce risk to stock […]

Dig deeper if you really want to know about Nitrogen

Rain encourages soil microbes to mineralise soil organic nitrogen (N) into plant available mineral forms. Some mineral N can leach, moving down in the soil profile with subsequent rain. Deep N soil testing can better estimate the amount of N available in the soil for the crop to make use […]

Do late sown crops need extra Phosphorus?

As winter sowing dates get later a crop’s potential response to Phosphorus (P) fertiliser rises, at the same time absolute yield potential is falling. This raises the question of what adjustments might need to be made to P fertiliser rates. Plant physiology indicates that later sown crops should be more […]