Leaching the good stuff: nitrogen and phosphorus in real and experimental urban agricultural settings
Compost products were the largest contributor to annual inputs in most gardens consistent with urban agricultural projects studied across cities.
By Geneviève S. Metson, Anna K. Sieczko, Gaston E. Small, Karin Tonderski, Jennifer A. Nicklay, Nicolas A. Jelinski, Paliza Shrestha & Kathryn LaBine
npj Urban Sustainability volume 5, Article number: 94 (2025)
Abstract:
Urban agriculture provides multiple services, but its potentially adverse impact on water quality remains poorly understood. Here we present empirical data from three coordinated studies examining nitrogen and phosphorus leaching in Minneapolis-St. Paul, Minnesota, USA, and Linköping Sweden, ranging from controlled experiments to observational studies of garden practices. Using zero-tension lysimeters at 30?cm in the soil over multiple growing seasons, we found that although plots receiving nutrient inputs tended to leach more nutrients than those that did not, annual nutrient input rates were not systematically strong predictors of growing season leaching.
Legacy effects from previous soil management and cumulative inputs help explain patterns observed for phosphorus leaching, with differences among treatments becoming visible over time. While urban agriculture can support nutrient circularity through organic waste recycling, careful management is needed to balance this benefit against leaching risks. Long-term monitoring is essential for understanding and managing nutrient losses from such systems.
Source: https://cityfarmer.info/leaching-the-good-stuff-nitrogen-and-phosphorus-in-real-and-experimental-urban-agricultural-settings/
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world. Anyone can join. Anyone can contribute. Anyone can become informed about their world. "United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
LION'S MANE PRODUCT
Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules
Mushrooms are having a moment. One fabulous fungus in particular, lion’s mane, may help improve memory, depression and anxiety symptoms. They are also an excellent source of nutrients that show promise as a therapy for dementia, and other neurodegenerative diseases. If you’re living with anxiety or depression, you may be curious about all the therapy options out there — including the natural ones.Our Lion’s Mane WHOLE MIND Nootropic Blend has been formulated to utilize the potency of Lion’s mane but also include the benefits of four other Highly Beneficial Mushrooms. Synergistically, they work together to Build your health through improving cognitive function and immunity regardless of your age. Our Nootropic not only improves your Cognitive Function and Activates your Immune System, but it benefits growth of Essential Gut Flora, further enhancing your Vitality.
Our Formula includes: Lion’s Mane Mushrooms which Increase Brain Power through nerve growth, lessen anxiety, reduce depression, and improve concentration. Its an excellent adaptogen, promotes sleep and improves immunity. Shiitake Mushrooms which Fight cancer cells and infectious disease, boost the immune system, promotes brain function, and serves as a source of B vitamins. Maitake Mushrooms which regulate blood sugar levels of diabetics, reduce hypertension and boosts the immune system. Reishi Mushrooms which Fight inflammation, liver disease, fatigue, tumor growth and cancer. They Improve skin disorders and soothes digestive problems, stomach ulcers and leaky gut syndrome. Chaga Mushrooms which have anti-aging effects, boost immune function, improve stamina and athletic performance, even act as a natural aphrodisiac, fighting diabetes and improving liver function. Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules Today. Be 100% Satisfied or Receive a Full Money Back Guarantee. Order Yours Today by Following This Link.
| Visits: | 1,753,043,452 |
| Stories: | 8,540,614 |
Whistler Blowers, Insiders
