Navigation Links
Researchers combat slowing yields with targeted fertilizer applications
Date:12/10/2007

MADISON, WI, DECEMBER 10, 2007 Scientists at Punjab Agricultural University, the International Rice Research Institute, and Virginia Tech have been successful in increasing average rice yields in northwest India using site-specific nutrient management strategies.

The Punjab province, which accounts for 10 percent of the Indian rice production, is currently witnessing a slower rice grain yield growth rate as compared to the yield growth rate during the green revolution phase (1960-1986). To meet the expected food demand in the next 30 years, rough estimates for India suggest the need to increase average farm productivity of the system, which is currently at 45 to 60% of the attainable yield potential, to 70 to 80% of the attainable potential.

The researchers hypothesized that decreased nutrient supply capacity of soil and improper nutrient management approaches were key factors in the slower growth rate. By analyzing the existing soil nutrient composition and applying site-specific nutrient management (SSNM) the scientists were able to increase average rice grain yields by 17 percent compared with current farmers fertilizer practice. Similarly, profits rose about 14 percent using SSNM.

Over a two year period the scientists applied calculated amounts of nutrients at 56 sites in six key irrigated rice-wheat regions to evaluate the effectiveness of SSNM in increasing yield growth rates. Using the Quantitative Evaluation of the Fertility of Tropical Soils (QUEFTS) model, which predicts crop yields from chemical soil characteristics, the scientists refined their nutrient applications and schedules on a site-specific basis.

In addition to yield and profit increases, improved timing of fertilizer applications led to a measured 13 to 15 percent increases in plant accumulations of nitrogen, phosphorous and potassium.

While further yield increases are likely to occur in small, incremental steps that involve gradual bui
'/>"/>

Contact: Sara Uttech
suttech@agronomy.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... with other group members to reduce aggression and gain ... strategy for grooming activities shows a certain pattern across ... scientific journal Biology Letters . , Grooming between ... without ulterior motives. To be groomed has hygienic benefits ... another individual can provide access to infants, mating opportunities ...
(Date:7/11/2014)... July 11, 2014 Researchers have pioneered a ... The new technology, called Virtual Finger, allows scientists ... like neurons and synapses using the flat surface ... makes 3D imaging studies orders of magnitude more ... unprecedented level across many areas of experimental biology. ...
(Date:7/11/2014)... addition to the hippocampus, the marginal division of ... memory. What is the impact degree of substance ... and memory function? Yan Yu and his team, ... found, using immunofluorescence staining, that substance P receptor, ... and striatal marginal division of normal rats. Unilateral ...
Breaking Biology News(10 mins):Baboons groom early in the day to get benefits later 2Virtual finger enables scientists to navigate and analyze complex 3D images 2
... Scientists are calling for more research on the possibility ... renowned for their apparent ability to prevent cancer ... individuals. Their recommendation follows a study in which two ... to aggravate kidney cancer in severely diabetic laboratory rats. ...
... the abstracts to be presented at the EORTC-NCI-AACR [1] Symposium on ... before the meeting at 00.01 hrs CET on Friday 29 October. ... are free to report on the online abstracts from the time ... bear in mind that all the abstracts had to be submitted ...
... , Blacksburg, Va. -- The USDA,s National Institute of ... the College of Agriculture and Life Sciences at Virginia ... grape and wine quality in the eastern United States. ... project director, the five-year project seeks to create, refine, ...
Cached Biology News:Abstracts for the EORTC-NCI-AACR Symposium in Berlin go up online on Friday, Oct. 29 2USDA awards Virginia Tech $3.8 million to stimulate eastern US wine industry 2
(Date:7/11/2014)... Cayenne Medical, Inc., a privately ... soft tissue reconstruction segment, announced the worldwide launch ... involving the shoulder and extremities. The SureLock System ... deployment method. The unique delivery eliminates manual tensioning ... or anchor displacement (also commonly know as anchor ...
(Date:7/10/2014)... 2014 Product and process impurities ... abundance and are often “lost in the noise,” ... Join presenters Dr. Rowel Tobias, Senior Scientist, Protein ... Head of Quality at Nanotherapeutics, Inc., to lear ... speed detection and quantitation while achieving the required ...
(Date:7/10/2014)... Understanding the need for better quality and ... gap that currently exists in this area, ChanTest has ... of validated ion channel and GPCR cell lines. ... ion channels control many critical physiological functions throughout the ... potential to treat a variety of human diseases. ...
(Date:7/10/2014)... CA (PRWEB) July 10, 2014 Unraveling ... closer together. The Archer Family purchased a ... within DNA, but ended up with a lifetime of ... contained within the family members’ DNA genuinely brought the ... decided to search deeper into genetic history and prior ...
Breaking Biology Technology:Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5
... GOLDEN, Colo., April 11 ABR-Affinity,BioReagents, a leading global ... Association for Cancer Research (AACR),and will exhibit at the ... April 12 - 16, 2008., "The AACR meeting ... we devote a,significant portion of our corporate resources to ...
... 11 Cord Blood America,Inc. (OTC Bulletin Board: ... ( http://www.cordblood-america.com ) focused on bringing,the life saving ... today said Pennsylvania has joined New York and ... women about the potential,benefits of umbilical cord blood ...
... CHAPEL HILL, N.C., April 10 Thought ... Home Depot, Qualcomm,Nationwide and others will address ... companies in today,s competitive economy at the ... Finding,Growing & Retaining Top Talent, sponsored by ...
Cached Biology Technology:ABR-Affinity BioReagents to Participate in the American Association for Cancer Research Meeting in San Diego, California, April 12 - 16, 2008 2Cord Blood America Says Pennsylvania Joins New York and California in Establishing Educational Programs on the Benefits of Umbilical Cord Blood Storage 2Pharmaceuticals & Biotechs to Share Insights for Developing Leaders in a Fast-Paced, Competitive Industry 2
... Versatile, modular, computer controlled pre-amplifier suitable for ... isolated electrode input for recording physiological signal ... and a transducer input for use with ... transducers. Additional options include a stimulus artefact ...
SYBR Green Nucleic Acid Dye...
... from an inert polymer with a unique split ... split septum caps for use with 384-well tall-chimney ... when used in conjunction with screw or clip-down ... pipetting equipment 384 septum caps may be ...
... ion chromatography system . The sensitive conductivity ... to 5000S, houses the measuring cell in a ... is available. Data processing is provided by ... is by the high pressure CE 4100 dual ...
Biology Products: