Nav: Home

Bermudagrass harvest management options with poultry litter fertilization

April 30, 2020

When fertilizing bermudagrass with poultry litter, turfgrass managers must consider limiting the buildup of soil P or drawing down soil test P through cut-and-carry forage. In a previous study that provided turfgrass with 122 kg ha-1 P in poultry litter, researchers found that Tifton 44 bermudagrass cut every 49 days at 3-cm stubble height recovered 23% of the P applied. Bermudagrass P removal is closely associated with dry matter (DM) yield and can be altered through management variables like variety, plant maturity at harvest, and litter application rate or timing. Given the tradeoff between DM yield and the amounts of crude protein and digestible DM in bermudagrass, managing harvests to maximize P recovery may adversely impact forage nutritive value.

In an article recently published in , researchers report on the response of forage nutritive value and P removal to the combined effects of harvest interval and stubble height in Russell and Tifton 44 bermudagrass receiving 4 tons acre-1 of poultry litter supplemented with 98 lb acre-1 N each spring from 2005 to 2007. Soil test P increased by approximately 60 mg kg-1, but there was no difference in soil P accumulation in the harvest interval x stubble height plots in autumn 2007. They concluded a best management practice is cutting every 35 d at 3-cm residual stubble height, which has long been considered a standard for economical forage production. Additionally, harvesting bermudagrass at an advanced stage of maturity is a best management practice in situations where high soil test P is of greater concern than forage nutritive value.
-end-
Adapted from Read, J.J., Lang, D.J., Adeli, A. and Jenkins, J.N. (2020), Managing harvest of 'Russell' and 'Tifton 44? bermudagrass receiving broiler litter for nutritive value and phosphorus removal. Crop, Forage & Turfgrass Mgmt. Accepted Author Manuscript.

American Society of Agronomy

Related Soil Articles:

Soil bogging caused by climate change adds to the greenhouse effect, says a RUDN University soil sci
A soil scientist from RUDN University studied soil samples collected at the Tibetan Plateau and discovered that high soil moisture content (caused by the melting of permafrost and glaciers) leads to further temperature increase.
Global warming threatens soil phosphorus, says a soil scientist from RUDN University
A soil scientist from RUDN University found out that the resources of organic phosphorus in the soils of the Tibetan Plateau could be depleted because of global warming.
Iron is to blame for carbon dioxide emissions from soil, says a soil scientists from RUDN
Iron minerals and bacteria can be the main agents of carbon dioxide emissions from the soil.
Heavy metals make soil enzymes 3 times weaker, says a soil scientist from RUDN University
Heavy metals suppress enzyme activity in the soil by 3-3.5 times and have especially prominent effect on the enzymes that support carbon and sulfur circulation.
The story behind a uniquely dark, wetland soil
Areas where landslides are common make hydric soil identification tricky.
Soil studies can be helpful for border control
Underground tunnels have been used by warriors and smugglers for thousands of years to infiltrate battlegrounds and cross borders.
For cleaner air, water, and soil
The air around us is still getting more and more polluted.
Soil in wounds can help stem deadly bleeding
New UBC research shows for the first time that soil silicates--the most abundant material on the Earth's crust--play a key role in blood clotting.
Unsustainable soil erosion in parts of UK
New research demonstrates unsustainable levels of soil erosion in the UK.
Freeze-dried soil is more suitable for studying soil reactive nitrogen gas emissions
Air-dried or oven-dried soils are commonly used in the laboratory to study soil reactive nitrogen gas emissions.

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Listen Again: The Power Of Spaces
How do spaces shape the human experience? In what ways do our rooms, homes, and buildings give us meaning and purpose? This hour, TED speakers explore the power of the spaces we make and inhabit. Guests include architect Michael Murphy, musician David Byrne, artist Es Devlin, and architect Siamak Hariri.
Now Playing: Science for the People

#576 Science Communication in Creative Places
When you think of science communication, you might think of TED talks or museum talks or video talks, or... people giving lectures. It's a lot of people talking. But there's more to sci comm than that. This week host Bethany Brookshire talks to three people who have looked at science communication in places you might not expect it. We'll speak with Mauna Dasari, a graduate student at Notre Dame, about making mammals into a March Madness match. We'll talk with Sarah Garner, director of the Pathologists Assistant Program at Tulane University School of Medicine, who takes pathology instruction out of...
Now Playing: Radiolab

What If?
There's plenty of speculation about what Donald Trump might do in the wake of the election. Would he dispute the results if he loses? Would he simply refuse to leave office, or even try to use the military to maintain control? Last summer, Rosa Brooks got together a team of experts and political operatives from both sides of the aisle to ask a slightly different question. Rather than arguing about whether he'd do those things, they dug into what exactly would happen if he did. Part war game part choose your own adventure, Rosa's Transition Integrity Project doesn't give us any predictions, and it isn't a referendum on Trump. Instead, it's a deeply illuminating stress test on our laws, our institutions, and on the commitment to democracy written into the constitution. This episode was reported by Bethel Habte, with help from Tracie Hunte, and produced by Bethel Habte. Jeremy Bloom provided original music. Support Radiolab by becoming a member today at Radiolab.org/donate.     You can read The Transition Integrity Project's report here.