Crop development report posing optimism for wheat yields

The latest crop development report published last Friday (03 Dec) estimated winter wheat conditions significantly better year-on-year.

In the latest report, 84% of wheat was rated good-excellent, up from 57% at the same point last year. Only 9% was rated fair, versus 23% last year.

The last two Autumns (2019 and 2020) have been relatively wet, especially 2019, which hindered autumn drilling campaigns. At this same point in November 2019, just under 60% of the intended GB wheat area had been drilled. This then lead to a seismic shift to spring cropping. Further to that, crop conditions as of November 2019 were poor, with a mere 15% of winter wheat rated good-excellent.

However, do crop conditions in November correlate with the final yield of the crop?

November crop development scores and final wheat yields​

A “successful” drilling campaign generally leads to good establishment of the crop. In turn this likely means favourable crop conditions. Therefore, it could be suggested that there is a correlative link between November crop condition scores and final yields, that’s if extreme weather event’s do not follow.

Currently, in the longer-term forecast up to 04 January the Met Office predict temperatures to be milder than earlier in the month and near to or above averages. It is likely to become more settled around the New Year with increased chance of overnight frost during clearer spells.

A graph showing the difference in crop conditions scores

Current crop condition scores are most comparable to November 2018 when 99% of the wheat crop had been planted and 93% of the crop was rated good-excellent. Yields that year were pegged at 8.9t/ha, leading to a bumper crop of 16.2Mt.

As our latest Early Bird Survey result estimated, intended area for 2022 harvest is also similar to that of harvest 2019, but it does not necessarily mean we are heading towards a bumper crop. However, with 99% of our 2022 winter wheat production in the ground, the UK is in a good position to produce a sizable crop.

What is critical to note though, is that a lot can change from now until harvest 2022. Although current conditions pose optimism for yields, timely rains and sunshine hours will be critical to achieve good yields.

Recent weather events show extreme weather conditions are becoming more common; autumn 2019 had excessive rains whereas spring/summer of 2018 experienced drought.

Fertiliser costs and availability may also pose risk to yields this year. The AHDB has issued new guidance on recommended nitrogen applications. Also available is a nitrogen fertiliser adjustment calculator for cereals and oilseeds. This is a tool used to establish the economic optimum amount of nitrogen to apply to crops. For more information, sign up to the AHDB webinar ‘Mitigating high fertiliser prices’ on 16 December.

Crop development report posing optimism for wheat yields: Grain market daily

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