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Increased Irrigation Effects on Corn Hybrids

 

Increased Irrigation Effects on Corn Hybrids

Objective

  • Compare the effects of watering every row middle vs. every other row middle for furrow irrigated corn grown in Mississippi on light-textured soils with limited water holding capacity.

Study Description

Plot Layout: On-farm strip trial
Experimental Design:  Split block 
Replicates:  
Number of Locations:   1
Soil Type:   Very fine sandy loam
Factors:    
   Irrigation:  Irrigate every other row middle
  Irrigate every row middle 
   Pioneer® Hybrid/Brand¹:  
   P1319HR
   (HX1, LL, RR2)
P1690YHR 
(YGCB, HX1, LL, RR2)
   P1498YHR
   (YGCB, HX1, LL, RR2)
P1739HR
(HX1, LL, RR2)
   P1602XR
   (HXX, LL, RR2)
P1745BVT^
(AVBL,CB,LL,GT)
   P1636YHR
   (YGCB, HX1, LL, RR2)
P1883YHR
(YGCB, HX1, LL, RR2)
   P1646CHR
   (RW, HX1, LL, RR2)
P2088YHR
(YGCB, HX1, LL, RR2)
   P1685YHR
      (YGCB, HX1, LL, RR2)
 
   Competitor Hybrids:  
   DKC62-08 DKC64-69 
   DKC66-97 DKC69-29
Cooperator:  Livingston Farms, Leland, Miss. 

Map: agronomy research location

Results

  • Yield response to increased irrigation for Pioneer® brand hybrids deemed suitable to be grown in Mississippi under fully irrigated conditions on sandy soils averaged 12.4 bu/acre.
  • Yield response to increased irrigation for more versatile hybrids suitable to be grown under all water regimes was 5.4 bu/acre.
  • Yield response to increased irrigation for Pioneer brand hybrids deemed suitable only for limited irrigation and/or dryland environments was 2.2 bu/acre.
  • Differential responses by hybrids to increased irrigation illustrates the importance of hybrid placement.
  • Responses to increased irrigation demonstrated in this trial should be expected to be more dramatic in years that are excessively hot and dry.

Chart: Pioneer® Brand Corn Hybrid Response to Increased Irrigation By Suitability

Chart: Yield of Pioneer® Brand and Competitor Hybrids Using Two Irrigation Patterns

Chart: Corn Yield Response to Irrigating Every Row Middle Compared to Every Other Row Middle


¹All Pioneer products are hybrids unless designated with AM1, AM, AMRW, AMX and AMXT, in which case they are brands. 
PIONEER® brand products are sold subject to the terms and conditions of sale which are part of the labeling and purchase documents.  2013 data are based on average of all comparisons made in one location through November 25, 2013. Comparisons are against any number of products of the indicated competitor brand unless otherwise stated. Multi-year and multi-location is a better predictor of future performance. Do not use these or any other data from a limited number of trials as a significant factor in product selection. Product responses are variable. Contact a Pioneer sales representative for the latest and complete listing of traits and scores for each Pioneer® brand product.

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