Navigation Links
Strip-till improves nutrient uptake and yield
Date:12/12/2011

The practice of deep banding fertilizer is growing in popularity as more growers turn to strip-till. However, this method may be costing growers more than it is worth.

A new University of Illinois study revealed that strip-till was superior to no-till and increased yield in soybean. However, the results showed no difference in yield between fertilizer application methods.

"Strip-till is usually talked about in corn, not soybean," said Fabian Fernandez, U of I assistant professor of crop sciences. "But the results argue strip-till for soybean would be a benefit, but placement of fertilizer offers no difference for yield."

Researchers compared different combinations of phosphorus and potassium rates applied in no-till by either broadcasting or deep-banding six inches below the surface, and in strip-till by deep banding six inches below the surface.

"Strip-till allows growers to apply fertilizer in a band in the subsurface it has almost become the norm these days," Fernandez said. "Most growers are deep banding fertilizer if they strip-till, when in reality, there is no need to do this, at least for soybean. Our research shows when fertility levels are adequate, there is no advantage and you can broadcast phosphorus and potassium to achieve the same results."

Fernandez said deep band placement normally requires more equipment, expense and time.

"Phosphorus doesn't move far in the soil. With broadcast application, it tends to accumulate at the soil surface," Fernandez said. "With subsurface application, we saw phosphorus levels decrease on the soil surface. Although subsurface band applications may not increase yield, they could decrease phosphorus levels on the surface which could be an environmental benefit to reduce the potential of phosphorus runoff."

Subsurface banding of fertilizers is sometimes promoted as a more efficient placement method, and some believe the same yield level can be attained with lower fertilizer rates, Fernandez said.

"We observed no evidence to suggest a fertilizer rate reduction can be accomplished with subsurface banding without similar yield declines as observed for broadcast applications," he said.

This research, "No-Till and Strip-Till Soybean Production with Surface and Subsurface Phosphorus and Potassium Fertilization" was published in Agronomy Journal. Researchers include Fernandez, Bhupinder Farmaha and Emerson Nafziger of the University of Illinois.


'/>"/>

Contact: Jennifer Shike
jshike@illinois.edu
217-244-0888
University of Illinois College of Agricultural, Consumer and Environmental Sciences
Source:Eurekalert

Related biology news :

1. For insulin sensitive overweight patients, 1 session of exercise improves metabolic health
2. Microarray analysis improves prenatal diagnosis
3. Replacing corn with perennial grasses improves carbon footprint of biofuels
4. Study finds rescue course of antenatal steroids improves outcome in premature babies
5. Queens University Belfast improves Malaysian public health
6. Taste, odor intervention improves cancer therapy, according to Virginia Tech, Wake Forest study
7. New, less invasive genetic test greatly improves pregnancy rates in older women with poor prognosis
8. Army study improves ability to predict drinking water needs
9. Technology improves salmon passage at hydropower dams
10. Water quality improves after lawn fertilizer ban, study shows
11. U-Iowa improves delivery of cancer-fighting molecules
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... -- NXT-ID, Inc. (NASDAQ:   NXTD ) ("NXT-ID" ... of independent Directors Mr. Robin D. Richards and ... furthering the company,s corporate governance and expertise. ... Gino Pereira , Chief Executive Officer ... guidance and benefiting from their considerable expertise as we move ...
(Date:4/5/2017)... 4, 2017 KEY FINDINGS The ... at a CAGR of 25.76% during the forecast period ... primary factor for the growth of the stem cell ... MARKET INSIGHTS The global stem cell market ... and geography. The stem cell market of the product ...
(Date:3/30/2017)... KONG , March 30, 2017 The ... a system for three-dimensional (3D) fingerprint identification by adopting ground breaking ... into a new realm of speed and accuracy for use in ... at an affordable cost. ... ...
Breaking Biology News(10 mins):
(Date:5/26/2017)... , ... May 25, 2017 , ... ... the full process behind each occurrence. Live cell imaging using fluorescence microscopy is ... the use of automated fluorescence microscopy methods will be discussed, from small animal ...
(Date:5/24/2017)... ... 23, 2017 , ... Federal funding for basic and applied scientific research — ... and other vital technologies — deserves continued support, say leaders of SPIE, the ... today in responding to the President’s budget request for Fiscal Year 2018. , The ...
(Date:5/23/2017)... Yorba Linda, Ca (PRWEB) , ... ... ... stem cells (PSCs) offer an unlimited source of human cardiovascular cells for ... efficient cardiac-directed differentiation methods makes it possible to generate large numbers of ...
(Date:5/23/2017)... , ... May 23, 2017 , ... ... advanced technology applications, has announced a facility expansion to accommodate its rapid growth. ... feet of new workspace and renovation of the existing areas. The expansion includes, ...
Breaking Biology Technology: