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corn canopy and residue covered soil temps
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Mikenesd
Posted 6/29/2016 22:27 (#5382372)
Subject: corn canopy and residue covered soil temps


Clark SD

It seems that having some residue cover on the soil might be factor this year. In the first picture shows a field of corn that is near or at canopy, this was soybeans last year and was tilled last fall and again this spring. The 2nd picture is a field that the corn was planted into a rye cover crop, last year this field was corn that was chopped for silage and was planted to rye to be used as a cover crop. The field in picture one is about to run out of moisture, for one thing, it isn't a deep soil ( lower water holding capacity) and some water has been lost to evaporation. That might explain the higher soil temperatures. The field in picture two is a deeper soil, it started out with more moisture in the profile and has lost less moisture to evaporation,which may explain in part the lower soil temp and also the residue layer is keeping the ground cooler. The first field was planted on 5/6 and the field in pic two was planted on 5/17 and is only 1 leaf collar behind.






(hovdes corn 8 collars 33 in tall lo 6 24 2016 002.jpg)



(harlans sq nef corn 7 collar 18 in tall lo 6 26 2016 003.jpg)



(harlans sq nef hovdes 2 inch seed slot min max soil temps 6 18 -23 2016.bmp)



Attachments
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Attachments hovdes corn 8 collars 33 in tall lo 6 24 2016 002.jpg (74KB - 46 downloads)
Attachments harlans sq nef corn 7 collar 18 in tall lo 6 26 2016 003.jpg (70KB - 49 downloads)
Attachments harlans sq nef hovdes 2 inch seed slot min max soil temps 6 18 -23 2016.bmp (504KB - 42 downloads)
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