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:3/23/2017)... 2017 The report "Gesture Recognition and Touchless Sensing Market ... - Global Forecast to 2022", published by MarketsandMarkets, the market is expected to ... between 2017 and 2022. Continue Reading ... ... ...
(Date:3/22/2017)... YORK , March 21, 2017 ... Marketing Cloud used by retailers such as 1-800-Flowers ... its platform — Product Recommendations and Replenishment. Using Optimove,s ... give more personalized product and replenishment recommendations to ... but also on predictions of customer intent drawn ...
(Date:3/20/2017)... , March 20, 2017 PMD Healthcare announces ... spirometer and Wellness Management System (WMS), a remote, real-time ... in 2010, PMD Healthcare is a Medical Device, Digital ... mission dedicated to creating innovative solutions that empower people ... that intent focus, PMD developed the first ever personal ...
Breaking Biology News(10 mins):
(Date:5/18/2017)... MA (PRWEB) , ... May 18, 2017 , ... When James Sherley, was notified earlier ... 50 Most Valuable Brands for the Year 2017 by The Silicon Review , he ... been making good progress increasing Asymmetrex’s value, but this recognition by Silicon Valley was particularly ...
(Date:5/16/2017)... , ... May 16, 2017 , ... ... Trademark Office (USPTO) for a wireless electrocardiogram (ECG or EKG) acquisition and monitoring ... be integrated into clothing, or secured directly onto the skin, making them significantly ...
(Date:5/16/2017)... ... (PRWEB) May 16, 2017 , ... ... (CAOS), long-standing development partners Invibio Biomaterial Solutions, UK, and China’s Double Medical ... help expand knowledge of the implantation of Double Medical’s Direct Lateral Interbody ...
(Date:5/15/2017)... Somerset, N.J. (PRWEB) , ... May 15, 2017 ... ... advanced delivery technologies and development solutions for drugs, biologics and consumer health products, ... biotechnology company focused on rare genetic diseases, to support preclinical and clinical development ...
Breaking Biology Technology: