Navigation Links
Organic apple orchards benefit from green compost applications
Date:7/21/2014

FAYETTEVILLE, AR In traditional apple orchards, effective management practices rely on two interrelated components: finding ways to manage competitive vegetation under the trees, and supplying important supplemental nutrition to trees. These factors are further complicated in organic management systems where limited tools are available, and producers need to meet the stringent soil fertility and crop nutrient management standards of the National Organic Program. University of Arkansas scientists published a study that includes recommendations for the use of various groundcover management systems for apple orchard floors. They say that selected management systems can improve soil quality in organically managed apple orchards.

Curt Rom, corresponding author of the study (published in HortScience), explained that orchards established on the weathered, acidic mineral soils in the Ozark Highlands must be strategically managed in order to meet the trees' nutritional requirements. "A common characteristic of Ozark Highland soils is a relatively low soil organic matter concentration, a condition that can have detrimental effects on orchard productivity," Rom said. A cross-disciplinary research team studied the impacts of groundcover management systems and nutrient source on soil characteristics, tree health and productivity, and insect, disease, and weed management. The experiments were performed in an organically managed apple orchard that was established in 2006 and continues today at the University of Arkansas' Agricultural Research and Extension Center in Fayetteville.

The researchers evaluated several under tree, in-row groundcover management systems, including shredded paper, wood chips, municipal green compost, and mow-blow. They also tested various nutrient sources (non-fertilized control, composted poultry litter, and pelletized organic commercial fertilizer). The groundcover systems and nutrients were analyzed for their respective effects on soil organic matter, carbon, and nitrogen concentration, and soil carbon and nitrogen sequestration.

The results showed that the use of various groundcover management systems as an orchard floor management tool can increase soil organic matter, total soil, and total nitrogen mineral soils, thereby improving soil quality. The greatest increases in these factors were associated with applications of green compost, which the authors say was a result of accelerated formation of carbon- and nitrogen-rich soil organic matter.

"Compared with conventional apple orchards managed with herbicides and fertilizers, green compost, wood chip, and shredded paper treatment may result in improved soil quality," the authors concluded. "However, care should be taken in organic apple production to ensure nutrients are not over applied, thereby protecting soil and water resources and maintaining the health of the orchard ecosystem."

According to Rom, the study has implications for sustainably and conventionally managed orchards as well as organic orchards, and demonstrates the sustainability of organically managed systems.


'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert

Related biology news :

1. Organic study of live pancreatic tissue yields new opportunities for diabetes research
2. New protocol recommendations for measuring soil organic carbon sequestration
3. Organic rice research moves to front burner in Texas
4. Organic tomatoes accumulate more vitamin C, sugars than conventionally grown fruit
5. High performance semiconductor spray paint could be a game changer for organic electronics
6. Organic vapors affect clouds leading to previously unidentified climate cooling
7. Organic electronics: Imaging defects in solar cells
8. Vetch cover crop, fertilizer practices recommended for organic zucchini
9. New gas-phase compounds form organic particle ingredients
10. Cfaed starts a research project on organic electronics with the University of Brasília
11. Researchers question published no-till soil organic carbon sequestration rates
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/24/2016)... Calif. , Nov. 23, 2016 Cercacor ... endurance athletes and their trainers non-invasively measure ... Index, Pulse Rate, and Respiration Rate in approximately 30 ... enables users easy and immediate access to key data ... part of a training regimen. Hemoglobin ...
(Date:11/22/2016)... Nov. 22, 2016   MedNet Solutions , an ... spectrum of clinical research, is pleased to announce that ... Healthcare and Life Sciences Awards as "Most Outstanding ... an unprecedented year of recognition and growth for MedNet, ... 15 years. iMedNet ™ , ...
(Date:11/19/2016)... DALLAS , Nov. 18, 2016 Securus ... technology solutions for public safety, investigation, corrections and monitoring, ... a smaller competitor, ICSolutions, to have an independent technology ... set, the most modern high tech/sophisticated telephone calling platform, ... tell customers that they do most of what we ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... 8, 2016  Renova™ Therapeutics, a biotechnology company ... and type 2 diabetes, announced that it has ... virus (AAV) vector developed in the laboratory of ... Stanford University. The company plans to use this ... product pipeline. "Early research has ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... SDK that provide essential device-to-computer interconnect using USB or PCI Express, announced the ... support. The FOMD-ACV-A4 is a small, thin, SODIMM-style module that fits a standard ...
(Date:12/8/2016)... 8, 2016  Anaconda BioMed S.L., a pre-clinical stage ... next generation neuro-thrombectomy system for the treatment of Acute ... Jovin, MD to join its Scientific Advisory Board (SAB). ... network of scientific and clinical experts to Anaconda BioMed ... ANCD BRAIN ® to its clinical phase. The ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... World Technology Awards. uBiome is one of just six company finalists in the ... In addition to uBiome, companies nominated as finalists in this year’s awards include ...
Breaking Biology Technology: