Total variable input costs for the 2013 corn and soybean crops are likely to stay about the same as last year, says Alan Miller, a Purdue Extension farm business management specialist. Variable input costs are the costs of production that vary directly with the crop grown, but don't include fixed costs, such as cash rent. While some individual input prices are expected to increase, some will decrease and others will stay about the same. Fluctuations will serve to cancel out one another and to help keep overall variable costs fairly stable compared to last season.
Seed prices will make the biggest jump in the coming year, Miller says. Corn seed is expected to increase by an average of 5-7%, and soybean seed prices are likely to increase more than corn.
"The drivers of higher seed prices in 2013 are higher commodity prices, tighter seed supplies due to the 2012 drought and prospects for strong crop returns in 2013," he says. "Soybean seed prices are expected to increase more than seed corn prices because the cost of the commodity is a larger component of the seed price."
Miller estimates seed costs per acre on average-yield farmland would increase by $8 for corn and $7 for soybeans.
Nitrogen (N) fertilizer prices are climbing, too. Tight supplies and transportation problems could contribute to an increase of about 2-5% over last year's already pricey N fertilizers, such as urea, liquid N (28%) or anhydrous ammonia.
But some N price relief could be on the horizon as the domestic fertilizer industry considers expanding production capacity to take advantage of abundant supplies of relatively cheap natural gas in the U.S., Miller says.
The price of another common fertilizer – potash – is down about 8% from last January because of abundant North American supplies. Those prices are expected to remain stable into planting season.
Phosphate fertilizer prices, while down almost 4% from last January, are expected to increase as spring planting season approaches.
"Ammonium phosphate products account for a large part of the phosphate fertilizer market in the U.S.," Miller says. "Phosphate prices are expected to increase 1-3% into the spring of 2013 as suppliers rebuild inventories, and due to the influence of nitrogen in phosphate products."
Prices paid for chemicals, such as fungicides, herbicides and insecticides, are expected to hold fairly steady, Miller says.
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