What is soil organic matter?
Soil organic matter is the fraction of the soil composed of anything that once lived. It includes plant and animal remains in various states of decomposition, cells and tissues of soil organisms, and substances from plant roots and soil microbes. Well- decomposed organic matter forms humus, a dark brown, porous, spongy materia that has a pleasant, earthy smell. Mississippi soils generally are less than 2 percent organic matter. (from National Soil Survey Center et al.)
CLARKSDALE, Miss. -- Growers who planted cover crops for the first time last year will share their experiences with other producers at a cover crop field day.
SAUCIER, Miss. -- Producers and gardeners looking for tips on growing herbs and improving their soil can attend a July 20 field day.
STARKVILLE, Miss. -- Producers who plant winter crops with no intention of harvesting them reap the benefits of soil conservation, weed control and nutrient retention.
On the flip side, however, the practice of almost constant production in a field creates issues with pest management. Farmers who “plant green” have to balance these challenges to best prepare the way for good crops each year.
New manager of operations Keri Jones recently joined the Mississippi State University Extension Service Soil Testing Laboratory, and she's ready to enhance the unit's efficiency."
"My primary goal is to provide accurate soil analysis in a timely manner," said Jones, an Extension associate who has worked in the MSU Department of Plant and Soil Sciences since 2016. "I hope to improve the overall efficiency of the lab as well as update soil nutrient application recommendations."
STARKVILLE, Miss. -- One major cost of producing a good crop is ensuring plants are fertilized well, an operational expense that may consume a significant part of farm budgets.
Bryon Parman, an agricultural economist with the Mississippi State University Extension Service, said nutrient application and replenishment may consume more than 13 and 14 percent of total operating expenses for cotton and soybeans.
“For crops with high nutrient demand such as corn, this nutrient cost may comprise more than 40 percent of variable costs,” Parman said.