Navigation Links
Strip-till improves soybean yield
Date:4/12/2012

URBANA -- Crop yield can be improved by ensuring adequate nutrient availability. But how should you place the fertilizer and what cropping system gives the best yields?

Research conducted by University of Illinois assistant professor of crop sciences Fabin Fernndez, professor of crop sciences Emerson Nafziger, and graduate student Bhupinder Farmaha looked at how tillage, and phosphorus and potassium placement and rates, affected the distribution of soybean roots and the levels of water and nutrients in the soil.

"Strip-till produces higher yields than the no-till systems," said Fernndez. "We were interested in understanding why."

In a three-year field experiment conducted near Urbana with soy following corn, they applied different rates of potassium and phosphorus in no-till broadcast (NTBC), no-till deep-band (six inches below the planted row) (NTDB), and strip-till/deep-band (STBC). Roots and shoots along with water, phosphorus, and potassium were measured periodically in-row and at between-rows positions at various depth increments up to 16 inches.

What they found was that, when they looked below ground, root density in strip-till systems was slightly lower than for no-till broadcast systems. "Basically, the plants are putting less energy into the root systems," explained Fernndez. The NTBC system probably put more stress on the plants, and the plants compensated by putting out more roots.

"When we look at the total phosphorus and potassium taken up by the plant, we see that the strip-till definitely had a more efficient system because with a smaller root system, these plants ended up with much higher nutrient levels in the plant and higher yields," said Fernndez

Strip-till seems to provide better conditions for plant growth, including more soil water. The researchers found slightly more soil water in the strip-till than the no-till in the between-row position.

"We are not sure why that happened," said Fernndez. "We cannot say whether it was due to better infiltration or if the tillage of the strip-till is allowing more water to come into the soil, but we saw it consistently."

The other question they considered was whether deep-band applications allow for improved fertilizer use efficiency specifically, can less fertilizer be used in deep-banding than in broadcast applications?

"We found no evidence for that," said Fernndez. "It doesn't save you anything, and it might cost more to deep-band the fertilizer than to broadcast it."

The finding that strip-till works well for soybeans is important, because farmers tend to think about the system as being mainly for corn.


'/>"/>
Contact: Susan Jongeneel
sjongene@illinois.edu
217-333-3291
University of Illinois College of Agricultural, Consumer and Environmental Sciences
Source:Eurekalert

Related biology news :

1. Strip-till improves nutrient uptake and yield
2. Organic farming improves pollination success in strawberries
3. Critical element that improves vascular function in postmenopausal women found
4. The right recipe: Engineering research improves laser detectors, batteries
5. Consuming fish during pregnancy improves offsprings cognitive development and prosocial conduct
6. Study of Yellowstone wolves improves ability to predict their responses to environmental changes
7. Powerful mathematical model greatly improves predictions for species facing climate change
8. Training peers improves social outcomes for some kids with ASD
9. Restricted calorie diet improves heart function in obese patients with diabetes
10. Noninvasive current stimulation improves sight in patients with optic nerve damage
11. DST Health Solutions Integrated Care Management Suite Improves Care Quality, Population Management of 31,000+ Member Health Plan
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/15/2016)... New York , June 15, 2016 /PRNewswire/ ... a new market report titled "Gesture Recognition Market by ... and Forecast, 2016 - 2024". According to the report, ... USD 11.60 billion in 2015 and is estimated ... reach USD 48.56 billion by 2024.  ...
(Date:6/7/2016)... -- Syngrafii Inc. and San Antonio Credit Union (SACU) ... Syngrafii,s patented LongPen™ eSignature "Wet" solution into SACU,s ... in greater convenience for SACU members and operational ... document workflow and compliance requirements. Logo ... Highlights: ...
(Date:6/2/2016)... 2016   The Weather Company , an IBM Business ... industry-first capability in which consumers will be able to interact ... questions via voice or text and receive relevant information about ... Marketers have long sought an advertising solution that can ... personal, relevant and valuable; and can scale across millions of ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... 2016 , ... Charm Sciences, Inc. is pleased to announce ... Research Institute approval 061601. , “This is another AOAC-RI approval of the Peel ... President of Regulatory and Industrial Affairs. “The Peel Plate methods perform comparably to ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample ... the Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. ... said Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our capacity ...
(Date:6/23/2016)... NEW YORK , June 23, 2016 ... the trading session at 4,833.32, down 0.22%; the Dow Jones ... the S&P 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ... BIND Therapeutics Inc. (NASDAQ: BIND ). Learn more ...
(Date:6/23/2016)... PUNE, India , June 23, 2016 /PRNewswire/ ... culture media market research report to its pharmaceuticals ... company profiles, product details and much more. ... market spread across 151 pages, profiling 15 companies ... now available at http://www.reportsnreports.com/reports/601420-global-cell-culture-media-industry-2016-market-research-report.html . ...
Breaking Biology Technology: