Clark SD | Here is an update of the corn that was planted on May 5th into spring wheat stubble. The first photo is of the corn planted into a bare spot, it is 81 inches tall has 18 leaf collars,has tasseled and the ear is milk stage and has acumulated 1716 gdd`s. The second photo shows the corn planted into a 10 inch wide strip cleared of residue it has reached a height of 94 inches, has 18 leaf collars, ear is in mid milk stage has acumulated 1647 gdd`s. I have switched to using the air temperature to figuring gdd`s starting on 6/24 on this test. A special note about the corn in the 10 inch wide strip, the plant that i was checking was a little behind its neighbors, the plants on either side of it in the same row had 18 collars and reached a height of 90 inches, and ear is inthe late milk stage. By the way the sensor at 6 ft is in the corn canopy. | spring wheat stubble | | | | min | max | | | | | | | | | 2 inch | 2 inch | | | | | in canopy | in canopy | min | max | soil | soil | | | | | min | max | 2 inch | 2 inch | spring | spring | | | | | air temp. | air temp. | soil | soil | wheat | wheat | | | | | 6 ft | 6 ft | spring | spring | 10 inch | 10 inch | min | max | | | above | above | wheat | wheat | cleared | cleared | 2 inch | 2 inch | | | ground | ground | residue | residue | strip | strip | bare soil | bare soil | | date | (*F) | (*F) | (*F) | (*F) | (*F) | (*F) | (*F) | (*F) | | 08/04/2010 | 58.73 | 86.55 | 71.77 | 85.83 | 71.08 | 75.92 | 71.08 | 74.53 | | 08/05/2010 | 52.49 | 82.24 | 68.33 | 87.28 | 66.96 | 72.46 | 66.28 | 70.39 | | 08/06/2010 | 53.89 | 92.46 | 66.96 | 88.01 | 65.59 | 73.15 | 64.91 | 72.46 | | 08/07/2010 | 66.28 | 93.21 | 70.39 | 76.62 | 69.71 | 76.62 | 69.71 | 75.92 | | 08/08/2010 | 62.17 | 102.6 | 71.77 | 76.62 | 70.39 | 75.92 | 70.39 | 75.92 |
 (corn antswhc 8 9 2010 001.jpg)
 (corn antswhc 8 9 2010 002.jpg)
Attachments
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 corn antswhc 8 9 2010 001.jpg (55KB - 118 downloads)
corn antswhc 8 9 2010 002.jpg (61KB - 110 downloads)
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soil temps 1(pic)
