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Protect potato potential with amino acid based biostimulant, says adjuvant specialist company

Keeping potato crops stress-free is vital to protect yield and quality potential, and an amino acid based biostimulant could give crops an essential boost over the coming months, according to UK-based adjuvant technology company, Interagro.

Healthy potato crops often lead to healthy, profitable harvests. But in a year where mother nature just keeps on giving, keeping crops in optimum condition is a challenge that is quickly becoming a nightmare for most potato growers and their agronomists.

And it’s not just farmers and agronomists feeling the stress; crops are also now feeling the heat too – and the drought, frost damage, wind blow, very high UV levels, and not to mention the herbicide damage to some crops.

“With rainfall at 64% of the national average for March/April, and May shaping-up to be the driest on record, drought stress will be a major problem where crops remain unirrigated,” explains Stuart Sutherland, technical manager at Interagro. “Only certain varieties will be able to cope and any further extremes, wet or heat, will exacerbate the stress impact on the crop

“Temperature stress can affect potato crops at any time during the growing cycle. Fluctuations in temperature between hot and cold, as we have experienced recently, lead to erratic growth that cause issue with tuber size, numbers and impacts quality, often resulting in growth cracks.

“Sensitive to both minus temperatures and extreme heat, potato plants stop growing above 26 oC as they physically cannot draw enough water up to compensate for what they are losing through their leaves.  Such extremes later on can stunt the canopy or prematurely senesce it impacting tuber size and yield.”

Crop stress, which reduces the rate of carbon assimilation and decreases partitioning of assimilates to the tubers, is the most detrimental to tuberisation, bulking and tuber yield.

Therefore, beating stress is a necessity to protect yield and quality potential, explains Stuart. “With the potato tuber being mainly composed of photoassimilates (mostly starch), any mechanism to stimulate photosynthesis and translocation of the end product to the underground stem offers the possibility to increase tuber yield.”

As a solution to this, trials have demonstrated that Bridgeway and Zonda significantly increase yields, by offering some relief through improving root health and increasing the rate of photosynthesis – enabling starch production to continue.

“The amino acids in Bridgeway/Zonda – Proline and Serine – help the crop to rebuild catabolised structural proteins, while crucial signalling peptides aid physiological changes in the plant that trigger vital coping and recovery mechanisms.”

What’s more , the biostimulants have proven to stimulate root growth increasing the crop’s access to water and nutrients, crucial during periods of heat, drought, and nutrient stress. “Looking to frost and herbicide stress, Bridgeway/Zonda can also help crops to recover crucial biomass by stimulating shoot growth and regulating development,” adds Stuart.

In CMI trials last year, Bridgeway significantly increased yield and margins in potato crops suffering from early drought stress. “Three applications of Bridgeway provided an increased tuber yield of 5.2t/ha (compared to an untreated crop), with an overall tuber yield of 38.08t/ha,” explains Stuart.

Translated into margin over input cost, these three applications led to an increase of £850/ha, he adds.

With the in-field performance consistently showing good results, Bridgeway/Zonda is a no brainer for potato growers this season, says Stuart.

“It’s been a challenging year across the board for growers, so having a product that has potential to make a significant difference to performance is definitely worth considering.”

For more information on the benefits of Bridgeway/Zonda in potatoes, visit: https://www.interagro.co.uk/relief-for-stressed-out-potato-crops/

Source: Interagro
Interagro boasts over 100 products in 30 international markets, making it one of the leading lights in the specialist spray adjuvant business throughout the EU, Eastern Europe, and North Africa.

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Lukie Pieterse, Editor and Publisher

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