Navigation Links
Study recommends strategies for improved management of fresh market spinach
Date:9/16/2013

SALINAS, CA -- Throughout California's fertile central coast region, fresh spinach is a high-production, high-value crop. Spinach can be finicky, requiring sufficient nitrogen fertilizer and irrigation to ensure ideal growth, and to meet industry quality standards such as its defining deep green color. These production practices -- combined with a shallow root system and the crop's intensive production cycle -- can increase the potential of detrimental nitrate leaching. Recent water quality monitoring in the region has found widespread incidences of NO3 levels that exceed the Federal Drinking Water standard. As a result, growers have come under increasing pressure to improve crop nutrient use efficiency (NUE), and thereby minimize NO3 losses from production fields. In an effort to inform future spinach production practices, scientists Aaron Heinrich, Richard Smith, and Michael Cahn evaluated spinach nutrient uptake and water use in the Salinas and San Juan Valleys of California.

The team explained that spinach producers can improve nitrogen use efficiency by applying fertilizer at the optimal time and rate to match crop nitrogen uptake, but that data needed to make these critical fertilizer decisions was not available prior to their study. "No studies had evaluated high-density planting of clipped or bunched spinach grown on 80-inch beds," said lead author Aaron Heinrich. "Our study was specifically designed to provide data on the nitrogen uptake characteristics of spinach and to evaluate ways to improve nitrogen fertilizer management."

Heinrich, Smith, and Cahn evaluated grower fertilizer programs, and measured spinach nitrogen uptake over an entire production season with a range of soil conditions, climatic conditions, and cropping histories. They also conducted four replicated fertilizer trials of first -- and second-cropped fields.

"Over the growing season, NO3 levels in the soil can build up due to a combination of unused fertilizer and mineralization of crop residue and soil organic matter," the team reported "Our evaluations showed that soil NO3 testing can be used to improve the nutrient use efficiency of spinach. We found that soil testing would be most effective in spinach production at two critical points: at-planting, and before the midseason fertilizer application when nitrogen use by spinach greatly increases." The comprehensive report, including additional implications for nitrogen fertilizer management of fresh market spinach, can be found in the June 2013 issue of HortTechnology.


'/>"/>

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

Related biology news :

1. Novelty of eco-friendly bamboo garments lures consumers -- if the price is right, Baylor study shows
2. ASU football program is first collegiate partner in TGen-Riddell concussion detection study
3. A phone call can change your life: Study finds
4. Study details paired risk factors in preeclampsia
5. African-American study identifies 4 genetic variants associated with blood pressure
6. Therapy slows onset and progression of Lou Gehrigs disease, study finds
7. Cytos Biotechnology Presents Additional Results From Phase 2a Study of CYT003 for the Treatment of Allergic Asthma
8. LSUHSC researchers develop new system to better study behavior, cell function
9. 400-year study finds Northeast forests resilient, changing
10. UCSF receives $4.5M to study value of gene sequencing in newborns
11. First study to investigate the human genome in multiple sclerosis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2017)... Mar 24, 2017 Research and Markets has ... Market Analysis & Trends - Industry Forecast to 2025" report ... ... at a CAGR of around 15.1% over the next decade to ... report analyzes the market estimates and forecasts for all the given ...
(Date:3/22/2017)... 21, 2017   Neurotechnology , a provider ... today announced the release of the SentiVeillance ... improved facial recognition using up to 10 surveillance, ... computer. The new version uses deep neural-network-based facial ... it utilizes a Graphing Processing Unit (GPU) for ...
(Date:3/20/2017)... Germany , March 20, 2017 At this ... Hamburg -based biometrics manufacturer DERMALOG. The Chancellor came to the DERMALOG ... is this year,s CeBIT partner country. At the largest German ... biometrics in use: fingerprint, face and iris recognition as well as DERMALOGĀ“s ... ...
Breaking Biology News(10 mins):
(Date:3/27/2017)... -- Trovagene, Inc. (NASDAQ: TROV), a precision medicine biotechnology company, ... Welch , will be presenting at this year,s MicroCap ... at the Essex House in New York ... Mark Erlander , Ph.D., will also be available ... The presentation will be webcast live at http://wsw.com/webcast/microcapconf3/trov ...
(Date:3/24/2017)... ROCKVILLE, Md. , March 24, 2017 /PRNewswire/ ... Venture Fund (MBVF), today announced positive results of a ... standard drug therapy regimen in patients with multidrug-resistant pulmonary ... discovered by scientists at Sequella, Inc. ( USA ... A total of 140 patients were ...
(Date:3/24/2017)... VILLAGE, Calif. , March 24, 2017   ... dermatology and aesthetics company, today announced that Richard ... Officer, effective March 24.   Peterson, who brings ... succeed John Smither , who is retiring at ... Sienna in an advisory capacity. Peterson joins Sienna from ...
(Date:3/23/2017)... 2017 Research and Markets has announced ... report to their offering. ... The Global Market for Bioproducts Should ... at a CAGR of 8.9%, This research ... into seven major product segments: bio-derived chemicals, biofuels, pharmaceuticals (biodrugs ...
Breaking Biology Technology: