Video No. 2 | Why You Can’t Get Maximum Yield without Crop Nutrition

What Science Says About

WHY YOU CAN'T
GET MAXIMUM
YIELD WITHOUT
CROP NUTRITION

About this Series

An engaging series of 11 videos that feature Dr Hooshang Nassery and Carol Phillips in a conversational style presentation about the science that underpins RLF product and practice.

It has been called ON SOLID GROUND for good reason, because the science of plant physiology provides the indisputable basis upon which all RLF products are developed.

This series will bring a relaxed and simple understanding for farmers and growers everywhere about the science that underpins the RLF brand, and the expertise that goes into every specialised crop nutrition product that RLF manufactures.

Carol Phillips talks with Dr Hooshang Nassery about Why You Can’t Get Maximum Yield without Crop Nutrition

Carol Phillips (CP) : Now, I’ve heard that maximum potential can be set from day-1, the very first day of a crop’s life. But why can’t this be achieved without specialised crop nutrition? What is it about crop nutrition that makes this happen?

Dr Hooshang Nassery (HN) : Yes, that’s a very good question, Carol. The field that has been generally neglected, has been how the seed nutrient levels affect the crop yield. Therefore, that is one aspect of it. The second one is, that although Foliar has been used in the past for single element and so on, but Foliar, in the sense that we advocate in RLF products – and that we make RLF products for – is also in a manner that impacts the root, and the root uptake. And therefore, we can say that for these reasons it is much better to be able to utilise these 3 levers, rather than only going through the root and through
the soil.

CP : Okay. So, can you give me an example of an RLF product that really supports the maximum yield potential, or the setting of that potential?
HN : The setting of the potential primarily goes with the seed phosphorus, as well as trace elements. And RLF, very early in development of these products, actually came up with a product which is called Seed Treatment, or Seed Primer (which is better), because it is absorbed by the seed. And, it also increases the potential even before the seed starts to germinate. In other words, it puts the potential there. So that when germination occurs, the limitation of phosphorus, which the bulk of it is in an unavailable form of phytic acid, is not limiting the potential of seed production. And we have lots of evidence that this actually happens.
CP : So the science-based evidence is growing to support this aspect of crop nutrition?
HN : Absolutely, yes. While we started it in larger scale, and RLF was the first company that developed this product. But individual nutrients have been tried by many researchers, and they have all supported that such a thing happened. In other words, priming with one nutrient can increase the yield, but what was generally missed in these (experiments), was the role of phosphorus, which RLF has a lot of information and a lot of supporting trials (about).
CP : Well, I’m sure we’ll talk about the role of phosphorus a little later in the series. But I think that with Seed Priming, as you have just mentioned, that clearly happens before the crop is sown.
HN : Absolutely yes. So if you consider a batch of seed, there is variability in all the levels of nutrients, but there is one common factor in all seeds – not necessarily cereals, but every type of seed – that the bulk of the phosphorus is not available from day-1 of germination. And this is probably the factor that is left behind in scientific endeavours, to see what effect the higher available phosphorus in the seed will have on yield potential. And RLF has got most evidence for this. And the research has actually continued over years, until probably last year. People have tried to correlate the seed phosphorus with the yield. But it is started with RLF products 25 years ago.
CP : Alright. Thank you, Hooshang.
HN : Yes.
CP : Thank you.
About Dr Hooshang

Hooshang is RLF's Plant Physiologist and he heads the company's Research, Development and Technical team. He brings the knowledge and enthusiasm for the industry with over 40 years of experience and he has played a central role in a number of new product developments, including the world-leading and innovative seed nutrition technology BSN. Contact Hooshang.

About Carol

Carol is RLF's Communications, Media and Policy consultant. She is the main author of information, marketing and website publications and part of her role is to plan targeted marketing and information strategies and resources for both customers and the wider RLF team. Contact Carol.

RLF Product Categories

RLF has 11 key product categories.

They all include specially developed and technically advanced crop nutrition products for all crop types, deficiencies and conditions.

The links at the following categories identify the specific, high-technology products available in each of the product categories.

Contact Details

1800 753 000 FREE CALL
+618 9334 8700 (Outside Australia)
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