Pea YEN Historic to 2023 data analysis growth stage dates

Perhaps due to lower cropping area, resources for fundamental research of peas in the UK has lagged behind that of the major crops. This means that whilst we have fantastic agronomy guides from PGRO, some of the things we take for granted for the major crops such as crop development growth benchmarks don’t exist for pulses. In 2016 an enthusiastic group of growers and industry sponsors, steered by ADAS and PGRO, stepped in to help bridge this gap for combining peas with a participatory network approach.

The Yield Enhancement Network (YEN) framework of collecting in depth yield, crop physiology & nutrition, climate and agronomy data is well suited to understanding crop fundamentals. This was highlighted by the agreement of Oilseed YEN data analysis with the “conventionally” produced growth guide.

Whilst smaller than its sister projects, the Pea YEN has recently reached a data set of 104 combining pea yields in 2023. Methods for assessing crop metrics on farm were developed from 2016-18 and a standardised methodology since 2019 has led to five years worth of in depth crop data. The NCS project, led by PGRO, aims to unlock the greenhouse gas emission reduction potential of pulses for UK agriculture. This is through supporting the production and feeding of pulses to livestock, and has allowed us to take a deeper look than usual into the Pea YEN data. We aim to follow in the footsteps of the Bean YEN 2019-2021 analysis to do several things:

1) Investigate the data we have collected as a network of farmers, industry and scientists over the last 8 years to understand how the variation of the different crop metrics we have measured associates with yield. This will help us prioritise targets within our own on farm testing or as larger research projects.

2) Highlight where the Pea YEN has helped our understanding of UK pea crop growth and development so we can better manage our crops.

3) Compare and contrast information about pea crops from other climates and countries to sense check whether the learnings from international research are relevant to UK crops.

The full report available below highlights what we have learned so far, including the associations of seasonal conditions, organic material input, crop development timings and pea crop physiology with yield and quality.

A huge thank you to all the growers, agronomists and sponsors who have helped grow the network over the years.


Pea YEN 2023 Sponsors


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ADAS provides ideas, specialist knowledge and solutions to secure our food and enhance the environment. We understand food production and the challenges and opportunities faced by organisations operating in the natural environment


Yield Enhancement Networks (YENs) were launched in 2012 to support and energise on-farm learning-by-sharing and thus to enhance farming progress.

Pulses are leguminous crops harvested for dry protein-rich seed, with peas (pisum sativum) and beans (vicia faba) being the major crops in the UK.

Agrii harnesses the power of skilled agronomists and the best intelligence to deliver unrivalled expertise and support for sustainable and profitable farming systems in the UK. 

As the UK's centre of excellence for peas and beans, the PGRO has a long and highly valued track record of providing authoritative, up to date information and project work based on solid, reliable research.

At present, we are leaders in the spring field bean market, including varieties such as Lynx, Vertigo, Fanfare and newer varieties including Yukon, Macho and Victus. We also have competitive oilseed rape varieties, for example Clubroot resistant varieties Crome and Croozer, HEAR OSR varieties including Resort and Ergo, all of which help the UK farmer to maximise their yield.  


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