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Fluid Journal : Summer 2017
4 The Fluid Journal Summer 2017 From The Publishers Dr. Larry Murphy The Fluid Journal • Official Journal of the Fluid Fertilizer Foundation • Summer 2017 • Vol. 25, No. 3, Issue #97 The Fluid Fertilizer Foundation and a number of other industry organizations continue to provide support for innovative research efforts to improve agricultural productivity, increase efficiency of inputs and boost producers’ profitability. Such are the objectives of Dr. Fred Below and his outstanding group of students and technicians in the Department of Crop Sciences at the University of Illinois. The following abstract provides a summary of those efforts in 2016 and will be followed by a full article later in The Fluid Journal. This exciting work continues in 2017. “The industry-wide initiative of doubling corn (Zea mays L.) grain yields by 2030 is required to feed a growing world population. The use of precision irrigation and fertilizer application technology may serve as a promising venue for producers to increase yields sustainably. Therefore, our primary objectives were to, 1) investigate subsurface drip irrigation (SDI) as a possible strategy to improve the efficiency of nutrient uptake and use when fluid nutrients are applied at key growth stages in corn and soybeans (Glycine max (L.) Merr.), and 2) understand how drip irrigation and fertigation can be optimized in a high yield agronomic system with complementary agronomic management practices including hybrid and variety selection and crop protection. In 2016, nutrient availability timing was investigated, comparing rainfed plots receiving all nutrients at preplant, versus fertigated plots with half of the nutrients supplied at preplant, and the other half distributed throughout the growing season to obtain conditions for more efficient fertilizer use. When averaged across five corn hybrids and four planting populations, when half of the nitrogen (N), phosphorus (P), and potassium (K) was supplied by fertigation after the V5 growth stage in 2016, yields were similar to those obtained by preplant application in 2015, with the advantage of less potential nutrient runoff and loss. However, the split application of nutrients in 2016 decreased yields by about 53 bu /acre compared to the all-preplant control, with hybrid selection influencing yield changes by 32 bu/ acre. Increasing the plant population from 32,000 to 50,000 plants/ acre did not alter yields under either fertility system. The 2016 findings highlight that adequate nutrient availability is needed upfront in corn*, and that delaying half of the fertilization until after the V5 stage by fertigation may lead to less nutrient loss, but may hinder maximum corn growth and yield. *Publishers emphasis. Reports such as Dr.Below’s make up the bulk of the program of the annual Fluid Forum in February each year in Scottsdale, AZ. Mark your calendar now for the 2018 Fluid Forum, February 19-20 and plan to attend this informative event. Contact the Fluid Fertilizer Foundation at: fluidfertilizer@fff. kscoxmail.com or call 785-776-0273 for more Fluid Forum information. The Fluid Fertilizer Foundation was established by the fluid fertilizer industry 30 years ago! A few of the achievements of the Fluid Fertilizer Foundation since its inception in 1982 include: Supported millions of dollars of applied crop production research Provided technical and agronomic education to thousands of agricultural professionals Published hundreds of scientific articles in our flagship publication, the Fluid Journal Join Us At The 2012 Fluid Forum For Our 30th Anniversary Celebration ! This year’s Fluid Forum will be at the Scottsdale Plaza Resort on February 19-21, 2012 in Scottsdale AZ. For additional information about the 2012 Forum, please see our website at http://www.fluidfertilizer.com/ ! Not a Fluid Fertilizer Foundation member yet? Please contact us at 785-776-0273 or by e-mail at email@example.com . Join Us At The 2018 Fluid Forum The Fluid Fertilizer Foundation was established by the fluid fertilizer industry 33 years ago! A few of the achievements of the Fluid Fertilizer Foundation since its inception in 1982 include: This year’s Fluid Forum will be at the Talking Stick Resort, 9800 East Indian Bend Rd. in Scottsdale AZ 85256. For additional information about the 2018 Forum, please see our website at http://www.fluidfertilizer.com/