mn-crop-weather State Minnesota Weekly Crop-Weather Week Ending Date Week Ending September 16, 2007 Issue MN-CW-37-07 Agricultural Summary Minnesota's soybean harvest began this past week, slightly ahead of the five-year average pace, according to USDA, NASS, Minnesota Field Office. Corn and soybean crops continued to mature rapidly, well ahead of average. Producers were beginning to take high moisture corn for grain, while harvest of corn silage continued well ahead of the five year average pace. In the northwest, the canola harvest was mostly completed while the sugarbeet harvest was gaining momentum. Cool overnight temperatures ranging from the upper 20's to the low 30's brought the first frost to many parts of the state. The average temperature for the week was 50.8 degrees, 8.2 degrees below normal. Statewide topsoil moisture supplies as of Friday were rated 14 percent very short, 32 short, 51 adequate, and 3 surplus. Field Crops Summary As of Sunday, Sep 16th, 73 percent of corn was mature, compared to 29 percent average. Three percent of corn was harvested for grain compared to 1 percent average, and corn cut for silage was 84 percent complete, compared to 56 percent average. Ninety-seven percent of soybeans were turning yellow, compared to 86 percent average. Eighty-one percent of soybeans were dropping leaves compared to 53 percent average. Thirty- nine percent of soybeans were mature compared to 16 percent average, and 5 percent were harvested compared to 2 percent average. As of Friday, Sep 14th, forty percent of field corn, and 53 percent of soybean were rated in good or excellent condition. Eighty-seven percent of potatoes, 68 percent of sunflowers, and 66 percent of sugarbeets were rated in good or excellent condition. Days Suitable for Fieldwork Table Days Suitable for Fieldwork: 6.1 Soil Moisture Table Very Short Short Adequate Surplus Topsoil Moisture (%) 14 32 51 3 Crop Progress Table Crop Progress as of September 16, 2007 Stage of This Last Last 5 Yr Crop Development Week Week Year Avg Percent Corn Mature 73 31 40 29 Harvested 3 0 1 1 Silage 84 60 71 56 Soybeans Turning Yellow 97 85 90 86 Dropping Leaves 81 45 62 53 Mature 39 8 20 16 Harvested 5 0 3 2 Moisture 16 N/A N/A N/A Sugarbeets Harvested 8 5 9 4 Sweet Corn Harvested 93 83 91 84 Potatoes Harvested 49 40 67 44 Dry Beans Harvested 40 27 52 32 Canola Harvested 99 92 100 84 Crop Condition Table Crop Condition as of September 14, 2007 in % Very Poor Poor Fair Good Exc Pasture 16 23 32 25 4 Corn 12 15 33 32 8 Soybeans 6 10 31 42 11 Sugarbeets 3 5 26 41 25 Potatoes 1 2 12 73 12 Dry Beans 2 13 37 42 6 Sunflowers 1 6 25 52 16 Weather Information Table Precipitation and Temperature Summary for 9/10/2007 through 9/16/2007 Temperature Precipitation G D D High Low Week Depart Week Depart From Norm Since Depart Ave from Total Past Four Since May from Norm Week Weeks 4/1 3 Norm NW DIST 1 Crookston 69 32 48.8 -9.1 .01 -.52 1.16 2.60 2168 44 Moorhead 77 35 52.9 -6.0 .01 -.50 .29 3.37 2419 194 Warroad 71 29 47.6 -7.4 .47 -.16 -.87 1.26 1979 131 NC DIST 2 Grand Rapids 73 28 48.0 -7.6 .18 -.54 .75 -5.36 2140 286 Intl. Falls 73 28 46.0 -8.0 .25 -.49 -.71 -1.61 1801 69 Itasca 66 29 45.7 -8.4 .09 -.61 -.64 -.30 2042 304 NE DIST 3 Duluth 69 28 47.8 -7.7 .03 -.99 -2.42 -8.15 1873 235 Grand Marais 63 32 47.6 -8.3 .25 -.56 .52 -3.21 1170 -101 Hibbing 71 21 44.4 -10.0 .21 -.55 -2.25 -10.66 1828 139 WC DIST 4 Alexandria 74 34 52.6 -6.1 0 -.64 -2.46 -9.34 2409 277 Browns Valley 74 29 52.8 -7.9 0 -.43 -.76 4.58 2313 -44 Canby 73 35 53.4 -9.0 0 -.56 -1.57 -2.06 2561 85 Fergus Falls 70 27 49.8 -9.0 .02 -.49 -2.17 .67 2350 188 Montevideo 78 29 53.5 -7.6 0 -.53 -1.94 -3.03 2496 146 Morris 72 29 50.1 -9.9 0 -.49 -1.10 -2.56 2358 74 CENT DIST 5 Becker 69 30 50.8 -7.5 .03 -.73 -.48 -6.16 2537 435 Collegeville 75 33 54.2 -7.6 .07 -.69 -1.62 -5.27 2654 257 Hutchinson 70 30 52.5 -8.6 0 -.55 .16 -4.51 2588 220 Olivia 71 30 51.8 -8.2 0 -.66 -.82 -3.59 2466 162 St. Cloud 73 27 50.9 -7.4 .04 -.66 -2.10 -5.31 2416 314 Staples 67 28 47.6 -9.2 0 -.60 -1.57 -3.33 2154 250 Willmar 71 32 51.4 -8.9 0 -.67 .93 -3.37 2529 228 EC DIST 6 Aitkin 68 29 51.2 -4.8 0 -.69 -.32 -6.68 2127 330 Forest Lake 71 33 52.4 -7.7 .20 -.59 -2.11 -5.46 2508 256 MSP Airport 74 36 55.0 -6.9 0 -.64 .94 -.56 2803 341 St. Paul - UofM 74 32 56.5 -6.6 0 -.76 .13 -7.54 2812 278 SW DIST 7 Lamberton 72 29 50.8 -10.3 .03 -.58 -.22 -2.24 2539 142 Pipestone 72 31 50.6 -9.6 .14 -.52 .53 -3.71 2492 185 Redwood Falls 78 28 52.3 -10.3 .01 -.58 -1.34 -2.39 2595 55 Worthington 72 33 51.0 -9.0 .27 -.34 2.56 4.21 2525 278 SC DIST 8 Faribault 68 32 52.3 -8.4 .04 -.73 -.43 -3.35 2545 255 Mankato 70 31 52.4 -8.9 .03 -.71 -.88 -4.65 2556 166 Waseca 69 29 51.6 -9.6 .10 -.66 -.15 2.05 2550 216 Winnebago 71 30 54.0 -8.3 .16 -.46 -.80 -5.30 2547 130 SE DIST 9 Preston 77 28 51.4 -9.1 .54 -.33 2.31 7.85 2362 159 Red Wing 70 31 53.5 -8.0 0 -.85 .25 -.25 2578 202 Rochester 73 32 53.8 -6.1 .42 -.33 1.38 5.00 2534 359 Rosemount 67 32 53.2 -7.5 .02 -.83 -1.14 -2.66 2566 300 Winona 73 35 52.8 -11.1 .67 -.17 -.15 6.12 2490 -141 m=some data missing Corn growing degree days (GDD) are calculated by subtracting a 50 degree base temperature from the average of the maximum and minimum temperature for the day. The daily maximum is limited to 86 degrees and minimum of 50 degrees. Contact Information USDA, NASS MINNESOTA FIELD OFFICE IN COOPERATION WITH THE NATIONAL WEATHER SERVICE- CHANHASSEN MN, UNIV. OF MINN. EXTENSION SERVICE, DNR STATE CLIMATOLOGY OFFICE, USDA-FSA, AND USDA-NRCS USDA-NASS MINNESOTA FIELD OFFICE Minnesota Department of Agriculture PO Box 7068, St. Paul, MN 55107 Phone: (651) 296-2230 E-mail: nass-mn@nass.usda.gov Homepage: http://www.nass.usda.gov/mn/