BYDV : your T-sum starts at emergence
BYDV risk runs on temperature from the day your crop emerges. How the 170 day-degree T-sum works, how to set a 150 alert in the Sencrop app, and which levers reduce the risk this autumn.
The British weather is notoriously capricious, so having real-time information on rainfall and temperature can help farmers to reduce inputs and improve efficiencies. And one lucky producer in North Yorkshire recently won a state-of-the-art connected weather gauge – so how does he see it helping on his farm?
Sitting north of the Cleveland Hills and south of the River Tees in North Yorkshire, the rain clouds are often spent before they reach Robert Shepherd’s lowland arable farm.
Keeping track of rainfall using conventional methods such as collecting it in a cup can be tricky and prone to human error. However, as the winner of a Sencrop Raincrop weather station, Mr Shepherd will now be able to measure rainfall consistently and remotely, better informing decisions concerning crops on his farm.
It will also be interesting to use the Raincrop rain gauge – which gives real-time weather updates from a field on his farm – to compare weather patterns year-on-year, says Mr Shepherd.
Mr Shepherd farms 68ha at Burnt House Farm, Hutton Rudby. His rotation comprises first and second winter wheats, winter barley, oilseed rape (OSR) and some grassland. Soil type is heavy clay. First wheat yields are typically 10t/ha and oilseed rape, 5t/ha.
Land is min-tilled with a Sumo trio, followed by establishing the crop with a Vaderstad drill. But if ploughing is necessary, he will go down that route. He is keen to make the most of varietal resistance and reduce inputs, doing on-farm tramline trials to compare treatments and varieties.
Mr Shepherd grows wheat varieties KWS Dawsum, Skyscraper, SY Insitor, KWS Parkin, Costello and Saki. His winter barley varieties include Bolton, Cassia and Barakooda and OSR varieties, Aurelia, Acacia and Aviron. The latter is one of the first OSR hybrids to feature the N-Flex gene, said to allow the crop to use available nitrogen in the soil more efficiently.
Overall, he is looking to reduce nitrogen use and achieve a more balanced soil ecosystem and wants to try putting bugs in the soil to fix nitrogen. “We are not doing it any favours by plastering on artificial nitrogen.”
As well as on his own farm, Mr Shepherd also sees a role for the rain gauge on larger arable farming enterprises, where weather at the home farm, for example, may be very different to that in fields five or 10 miles away.
As well as rainfall, the device can also measure temperature, which will help when making decisions over herbicide timings, says Mr Shepherd. “If there has been a frost or the temperature is low, you wouldn’t go with a big tank mix the next morning or you could damage the crop. Similarly, if the temperature is higher than 20⁰C you wouldn’t really want to spray.”
It is early days for the Sencrop rain gauge on Mr Shepherd’s farm, but he is looking forward to finding out how it can help him develop his arable enterprise. “At the moment we use a cup to measure rain and tip it out but this should be a lot more thorough.”
Sencrop also recently launched new agronomic features which Mr Shepherd will be able to explore. It has joined forces with the Information System for Integrated Plant production (ISIP) to provide bespoke disease forecasting for farmers based on pooled and individual data.

Taking into account local temperature, humidity and precipitation, the system will predict risk levels for diseases affecting winter wheat, barley, rye, triticale and spring barley between 15 February and 30 June. This will enable farmers to react to times of high disease pressure and protect crop quality and yield.
On top of that, a potato blight indicator based on Hutton criteria has been available since 2021, helping growers to predict it 4 days ahead and organise their sprayings accordingly.

You also wants to save time and money ? Get your own raingauge to collect ultra-local rain and temperature data !
BYDV risk runs on temperature from the day your crop emerges. How the 170 day-degree T-sum works, how to set a 150 alert in the Sencrop app, and which levers reduce the risk this autumn.
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