Navigation Links
Improved rainwater harvesting system promising
Date:12/13/2011

LJUBLJANA, SLOVENIARidge and furrow rainwater-harvesting (RFRH) systems with mulches were first researched in the flat, lowland, semiarid conditions of northwest China to improve water availability and to increase crop production. In RFRH systems, plastic-covered ridges serve as rainwater harvesting zones, and bare or mulched furrows serve as planting zones. The systems are becoming increasingly recognized and are being promoted in many parts of the world as a means to improve large-scale production operations.

Although the RFRH system improves water availability and increases yield, it has many deficiencies that prevent its practical application, including relatively high soil compaction, high soil erosion, and issues with fertilizer leaching, especially in heavy rainfall. Another system, called "ridge-furrow-ridge rainwater harvesting", or RFRRH, was first studied in flat, lowland humid regions of central Europe. In the RFRRH system, polyethylene mulch covers two ridges (planting zones) and the furrow between them, which serves as the rainwater-harvesting zone. The RFRRH system with mulches manages plant cultivationeven under impermeable mulchwithout using an irrigation system.

In a new study published in HortScience, Borut Gosar and Dea Baričevič from the Department of Agronomy at the University of Ljubljana (Slovenia) tested the RFRRH system in a field study using purple coneflower (Echinacea purpurea Moench). Gosar explained that purple coneflower was chosen because of its importance in Slovenia; the natural immunostimulant is widely cultivated for use in pharmaceutical preparations that are sold to domestic and international markets.

The study was conducted to determine the effect of the RFRRH system with or without a covering of two different types of polyethylene (PE) mulches and with or without supplemental irrigation on soil water content, crop yield, and time needed for weed control. Results showed that the RFRRH system with mulch increased soil water content in dry periods at the beginning of plant growth. The system also resulted in higher yields and reduced labor costs compared to the control. "In the non-irrigated plots, the results showed significantly higher soil water content during dry periods at the beginning of plant growth in the mulch-covered RFRRH system in comparison with the control (uncovered ridges). In comparison with the control, the mulch-covered RFRRH system significantly increased yield and reduced time dedicated to weed control", said Gosar.

The scientists found that the RFRRH system with mulches offers many advantages for agricultural application. In addition to the system's proven ability to reduce weeds and increase crop yield, and the black PE mulches used may also increase soil temperature, reduce soil erosion, and reduce fertilizer leaching from the root zone. In the event of inadequate rainfall, the RFRRH system with mulches enables simple supplemental irrigation using an agricultural vacuum tanker by flooding the PE mulch-covered furrow with hardly any ridge erosion.

The study confirmed that the RFRRH system with mulches is an efficient, simple and economical method for application in agricultural production.


'/>"/>

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

Related biology news :

1. Improved characterization of nanoparticle clusters for EHS and biosensors research
2. Improved living environments can reduce health problems for women and children
3. Breeding soybeans for improved feed
4. First proof in patients of an improved magic bullet for cancer detection and radio-therapy
5. Improved method for capturing proteins holds promise for biomedical research
6. U of M researchers use improved imaging technique; discover a better approach to diagnosing epilepsy
7. Trastuzumab and chemotherapy improved survival in HER2-postive breast and brain cancer patients
8. New genetic map of potato may lead to improved crops
9. Nanowire-based sensors offer improved detection of volatile organic compounds
10. China needs improved administrative system for nuclear power safety
11. IOF calls for improved strategies to close the treatment gap and reduce future burden of fractures
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Improved rainwater harvesting system promising
(Date:3/23/2017)... -- Research and Markets has announced the addition of ... Industry Forecast to 2025" report to their offering. ... The Global Vehicle Anti-Theft ... 8.8% over the next decade to reach approximately $14.21 billion by ... and forecasts for all the given segments on global as well ...
(Date:3/20/2017)... ALLENTOWN, Pa. , March 20, 2017 ... PD 2.0 personal spirometer and Wellness Management System (WMS), ... Founded in 2010, PMD Healthcare is a ... Company with a mission dedicated to creating innovative solutions ... of life. With that intent focus, PMD developed the ...
(Date:3/7/2017)... , March 7, 2017 Brandwatch , the ... by The Prince,s Trust to uncover insights to support ... The Trust. The UK,s leading youth charity will be ... campaign results and get a better understanding of the topics and ... ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... Linda, Ca (PRWEB) , ... April 20, 2017 ... ... University Virtual Event , this new webinar will explore challenging patient cases when ... admitted to the hospital, there may be a need for bridging parental anticoagulation ...
(Date:4/20/2017)...  Eli Lilly and Company (NYSE: LLY ... the prevention of migraine at the American Academy of ... 22-28, 2017, in Boston . ... including safety and patient outcomes data for galcanezumab in ... in monthly migraine headache days among patients with episodic ...
(Date:4/20/2017)... ... April 20, 2017 , ... ... scientific and clinical research community’s growing body of knowledge during its Eighth ... Gracie Theatre and the adjacent Darling Atrium. During the event, undergraduates, graduate students, ...
(Date:4/20/2017)... LAVAL, QC , April 20, 2017 /PRNewswire/ - Prometic Life ... today presented new results at the International Liver Congress ("ILC") ... Liver ("EASL") in Amsterdam on the ... in a mouse model of obesity and metabolic syndrome. ... According to Dr. Lyne Gagnon, ...
Breaking Biology Technology: