In the previous Crop watch report I commented how well the crops had come out of the winter, however most of them had been insulated with a cover of snow,protecting them from freezing temperatures.
Febuary has seen a mean temperature of 2.4 degrees, with a maximum of 7.3 and lowest of -2.6 degrees, March so far has fared no better. Soil temperatures got to heady heights of 4.4, but have soon dipped to 3.3and below Winter rape crops with large canopies have lost their outer leaves, the nitrogen will have been dissapaited to new growth.
In crops with large canopies I have found evidence of stem cracking, which is associated with frost damege. This pheneomen appeared a few years ago when the term wind chill factor entered our vocabulary. Having done some reaseach , I have found a scientific paper that suggests that large canopied rape is more susceptible to damage from low temperatues and increasing day length.
Winter cereal grown on light land are showing evidence of frost lift, and when there are no night frosts forcast hopfully these will be rolled in order to consolidate the roots. With such hard night frosts manganese defficient crops have not been treated, as this would only exacerbrate the problem. With such low soil temperatures there is very little evidence of new root growth in cereals.
Atlantis appliactions will be dealyed until soil tempertures
increase and there is evidence of active growth. All wheat crops that
are to be treated will be top dressed in order to encourage growth of
weed and crop. Blackgrass has only just started to grow as there new
roots are just appearing.
Blackgrass does grow at lower temperaures, and light intensities than wheat.Having had all blackgrass tested on my farms over the years, and all exhibiting various degrees of resistance Atlantis will be applied on its own in order not to comprimise it effecicay.
With disease development been delayed, hopfully the To timing will be where it should be i.e end of March.
If the whether holds during the next few days, hopfully all spring
barley /spring wheat and spring beans will be drilled. At present with
such low soil temperatures I am advising all beet drills to remain in
the shed.
Leave a comment
What a user pic? Get a Gravatar!