Iowa Corn, Soybean Crop Development Lagging

Iowa Corn, Soybean Crop Development Lagging

USDA report shows Iowa's corn crop is rated 57% good to excellent, but needs heat units to speed up development.

Iowa's 2013 corn and soybean crops are developing slower than normal—thanks to the late start, delayed planting and wettest spring on record. While crops need some heat units to speed their development, the latest weekly survey by USDA shows this year's plantings are making some progress. The weekly Crops & Weather report, based on conditions as of June 30 and released July 1, shows 57% of the state's corn is currently rated good to excellent, and 56% of the beans are good to excellent.

NEED SOME SPEED: Iowa's corn and soybean crop has had a late start thanks to this year's delayed planting and continued wet weather. USDA's latest weekly survey shows 99% of the state's corn crop was finally planted by June 30 and 96% of the soybeans were in the ground. Heat units are needed to speed up crop development as the 2013 growing season is running about 110 growing degree days behind normal. That's equal to about 5 calendar days.

"Statewide, crop conditions are looking better as of the end of June," notes Iowa Secretary of Agriculture Bill Northey. "And it's great to make progress in planting, as 99% of Iowa's corn and 96% of the soybeans are now planted. But while our crops are looking better than they have been in recent weeks, they are still running behind in maturity and development for this time of the growing season."

Nationally, the condition of the U.S. corn crop is rated 67% good to excellent as of the end of June. For soybeans nationally, USDA reports 67% of the crop is in good to excellent condition. The weekly Iowa Crops & Weather report is available on the Iowa Department of Ag & Land Stewardship's site or USDA's site. The report summary follows here:

Iowa's 2013 corn crop is rated 44% good and 13% excellent as of June 30

CROP REPORT: Warmer and mostly drier conditions during the week ending June 30, 2013 allowed Iowa farmers to near completion of corn and soybean planting, according to the weekly survey by USDA's National Agricultural Statistics Service. Statewide there was an average of 4.1 days suitable for fieldwork during the week, only the third week of the year with more than 4 days suitable. The 5.4 days suitable for fieldwork in Northwest Iowa were the most in the state, and Northeast Iowa had the least amount with 2.9 days suitable.~~~PAGE_BREAK_HERE~~~

Moisture levels for both topsoil and subsoil saw movement from the surplus rating into the adequate rating. Topsoil moisture levels rated zero percent very short, 1% short, 66% adequate and 33% surplus. Subsoil moisture levels rated zero percent very short, 2% short, 67% adequate and 31% surplus.

With 99% of the state's corn crop in the ground, Iowa farmers have virtually wrapped up planting. Statewide 96% of the corn crop has emerged as of June 30, about 3 weeks behind normal. The warmer weather helped the condition of corn and the good to excellent rating increased 3 percentage points from last week. Corn condition was rated 3% very poor, 11% poor, 29% fair, 44% good and 13% excellent as of June 30. Also, 96% of Iowa's soybean crop has now been planted, about two weeks later than it normally takes soybeans to reach that mark. The survey shows 89% of the soybean crop has emerged; 8 percentage points behind the 5-year average.

Iowa's 2013 soybean crop rates 45% good and 11% excellent as of June 30

Soybeans also benefitted from the warmer weather, with condition ratings improving slightly, to 3% very poor, 9% poor, 32% fair, 45% good and 11% excellent. Eighty-four percent of the oat crop was headed on June 30, only 3 percentage points behind the normal 87% headed. And 7% of the oat crop has turned color, well behind last year's 63% and the 5-year average of 28%. Iowa's oat condition rates 1% very poor, 6% poor, 26% fair, 55% good and 12% excellent.

Farmers continued to make good progress harvesting alfalfa last week, and the 1st cutting of alfalfa now stands at 89% complete, 2 percentage points ahead of normal. Hay condition is rated at 1% very poor, 3% poor, 26% fair, 54% good and 16% excellent. Pasture and range conditions rate zero percent very poor, 4% poor, 24% fair, 48% good and 24% excellent.~~~PAGE_BREAK_HERE~~~

IOWA PRELIMINARY WEATHER SUMMARY—For week ending June 30, 2013

Provided by Harry Hillaker, State Climatologist, Iowa Department of Agriculture & Land Stewardship

Rainfall amounts were highly variable across Iowa for the past reporting week that ended June 30. The bulk of the precipitation came early in the period. Light to moderate rain fell over much of the state on Sunday (June 23) and statewide on Monday (June 24) with heavy rain over parts of eastern Iowa. There was scattered light to moderate rain on Tuesday (June 25) with scattered rain over the west and moderate to heavy rain over the east on Wednesday (June 26). Light rain fell across the southwest one-third of the state on Thursday (June 27) while Friday (June 28) was dry in most areas. Some rain fell over far northeast Iowa Friday night with showers and thunderstorms over much of the state on Saturday (June 29), with greatest amount again in the east. Dry weather returned statewide on Sunday (June 30).

Statewide rainfall was above normal, temperatures about normal last week

Weekly rain totals varied from only 0.03 inches at Sibley in northwest Iowa to 8.59 inches at Lowden in Cedar County. The statewide average precipitation was 1.72 inches while normal for the week is 1.16 inches.

Meanwhile temperatures were a little below normal on Monday thanks to widespread cloud cover while warm and humid air prevailed from Tuesday through Thursday. Lower temperatures and humidity prevailed over the weekend. Temperature extremes for the week ranged from a Wednesday afternoon high of 93 degrees at Des Moines to Sunday (June 30) morning lows of 52 degrees at Mason City, Sheldon and Grundy Center. Temperatures for the week as a whole averaged 0.9 degrees above normal.

TAGS: Soybean
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