fertility

S oybeans grow best on soils of medium-to-high fertility and with favorable soil pH. Maximum yields are possible only when producers meet plant nutritional requirements and other basic production factors. Even if you use the best soybean varieties and cultural...

New tool evaluates in-season tissue potassium levels, maximizing profitability. • By Trent Roberts • Potassium deficiency is the primary limitation affecting soybean profitability. Producers must carefully manage potassium levels in their soil by knowing when, where and how much fertilizer to...

With agricultural input costs on a rapid rise and the volatility of current commodity markets, farmers are having to tighten their belts to stay in the black. To navigate the complicated economic nature of operating a profitable farming operation, the...

Farmers understand fertilizer prices fluctuate with time. “We are living through a substantial shift in potassium and phosphorus prices, from low prices in the 2020 growing season to the highest prices in the past decade for fertilizer purchased now for...

• By Fred Miller • The University of Arkansas System Division of Agriculture has appointed Trent Roberts the Endowed Chair in Soil Fertility Research. Roberts is an associate professor of soil fertility and testing for the Arkansas Agricultural Experiment Station...

• By Rasel Parvej and David Moseley • Nitrogen (N) is the most yield limiting nutrient for any row crop including soybean. Since soybean, like other legume crops, can fix atmospheric N symbiotically through Rhizobium bacteria (Bradyrhizobia japonicum), the crop...

• By Rasel Parvej, David Moseley, Brenda Tubana and Syam Dodla • Potassium (K) deficiency can decrease more than 50% of soybean yields across soil types that range from sandy loam to clay loam. Potassium deficiency symptoms in soybeans first...

• By David Moseley and Md Rasel Parvej • The progress of 2021 soybean planting season has been behind the five-year average from the beginning due to weekly heavy rains throughout the state. The optimum soybean planting window is suggested...

Each year, American farmers raise billions of chickens, more than enough for a “chicken for every pot,” as Herbert Hoover’s campaign once promised. But all those birds mean a lot of something else: manure. Poultry litter is the mix of...

Don’t ignore sulfur deficiencies, which have become more common as atmospheric emissions grow cleaner. • By Larry Oldham • Sulfur is essential for growing plants. It is a component of two of the amino acids that make up proteins. According to...

• By Luke Gatiboni • Proper soil fertility management is an important step for a successful soybean season. Before planting, it is important to think about three main things regarding soil fertility: soil acidity, commonly required nutrients and eventually required...

• By Fred Miller • Potassium, or potash, is an important nutrient for Arkansas’ major row crops, and a deficiency of it can significantly reduce yields at harvest. A video, “Potassium Deficiency in Row Crops” from the University of Arkansas System...

Fertilizer recommendations are constantly examined and rarely modified, but change came this year after Mississippi State University research demonstrated higher potassium recommendations increase soybean yields. Larry Oldham, soil specialist with the MSU Extension Service, said the MSU Soil Testing Laboratory...

Rasel Parvej recently joined the LSU AgCenter Northeast Region faculty as assistant professor serving as a soil fertility and agronomy specialist. Parvej will have statewide responsibilities in row crop soil fertility. With research experience in cropping systems that include soybean,...

Soybean seeding rates, effects of urea application on soy protein concentration and how drones are used in multiple inlet irrigation in rice are among the topics included in the tours set for the Aug. 8 field day at the...