THE EFFECT OF WATER TABLE MANAGEMENT ON THE MIGRATION OF PHOSPHORUS AND ON GRAIN CORN IN SOUTHWESTERN QUÉBEC

2013 ◽  
Author(s):  
N. Stämpfli ◽  
C. A. Madramootoo
Keyword(s):  
Water Table ◽  
Effect Of Water ◽  
Water Table Management

Effect of Water Table Management and Irrigation on Potato Yield

2012 ◽  
Vol 55 (6) ◽  
pp. 2175-2184 ◽  
Author(s):  
S. Satchithanantham ◽  
R. Sri Ranjan ◽  
B. Shewfelt
Keyword(s):  
Water Table ◽  
Potato Yield ◽  
Effect Of Water ◽  
Water Table Management

Effect of Water Table Management on Water Quality and Crop Yield at the Plot and Farm Scale Fields

2004 ◽  
Author(s):  
C.S. Tan ◽  
C.F. Drury ◽  
J.D. Gaynor ◽  
W.D. Reynolds ◽  
T.W. Welacky ◽  
...  
Keyword(s):  
Water Quality ◽  
Crop Yield ◽  
Water Table ◽  
Effect Of Water ◽  
Farm Scale ◽  
Water Table Management

Effect of Water Table Management on the Fate of the Pesticide Aldicarb

1996 ◽  
Vol 39 (1) ◽  
pp. 55-66 ◽  
Author(s):  
C. L. Munster ◽  
R. W. Skaggs ◽  
V. R. Pemmireddy
Keyword(s):  
Water Table ◽  
Effect Of Water ◽  
Water Table Management

scholarly journals Effect of water table management and elevated CO2 on radish productivity and on CH4 and CO2 fluxes from peatlands converted to agriculture

2017 ◽  
Vol 584-585 ◽  
pp. 665-672 ◽  
Author(s):  
S. Musarika ◽  
C.E. Atherton ◽  
T. Gomersall ◽  
M.J. Wells ◽  
J. Kaduk ◽  
...  
Keyword(s):  
Elevated Co2 ◽  
Water Table ◽  
Co2 Fluxes ◽  
Effect Of Water ◽  
Water Table Management

LINKFLOW, A WATER FLOW COMPUTER MODEL FOR WATER TABLE MANAGEMENT: PART 3. MODEL APPLICATION

1997 ◽  
Vol 40 (6) ◽  
pp. 1543-1547 ◽  
Author(s):  
P. L. Havard ◽  
S. O. Prasher ◽  
R. B. Bonnell ◽  
A. Madani
Keyword(s):  
Water Flow ◽  
Water Table ◽  
Computer Model ◽  
Model Application ◽  
Water Table Management

scholarly journals Water Table Management Reduces Tile Nitrate Loss in Continuous Corn and in a Soybean-Corn Rotation

2001 ◽  
Vol 1 ◽  
pp. 163-169 ◽  
Author(s):  
Craig F. Drury ◽  
Chin S. Tan ◽  
John D. Gaynor ◽  
John W. Daniel Reynolds ◽  
Thomas W. Welacky ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Table ◽  
Nitrate Concentration ◽  
Tile Drainage ◽  
N Fertilizer ◽  
Phase 2 ◽  
Nitrate Loss ◽  
Continuous Corn ◽  
Water Table Management ◽  
Drinking Water Guideline

Water table management systems can be designed to alleviate soil water excesses and deficits, as well as reduce nitrate leaching losses in tile discharge. With this in mind, a standard tile drainage (DR) system was compared over 8 years (1991 to 1999) to a controlled tile drainage/subirrigation (CDS) system on a low-slope (0.05 to 0.1%) Brookston clay loam soil (Typic Argiaquoll) in southwestern Ontario, Canada. In the CDS system, tile discharge was controlled to prevent excessive drainage, and water was pumped back up the tile lines (subirrigation) to replenish the crop root zone during water deficit periods. In the first phase of the study (1991 to 1994), continuous corn (Zea mays, L.) was grown with annual nitrogen (N) fertilizer inputs as per local soil test recommendations. In the second phase (1995 to 1999), a soybean (Glycine max L., Merr.)-corn rotation was used with N fertilizer added only during the two corn years. In Phase 1 when continuous corn was grown, CDS reduced total tile discharge by 26% and total nitrate loss in tile discharge by 55%, compared to DR. In addition, the 4-year flow weighted mean (FWM) nitrate concentration in tile discharge exceeded the Canadian drinking water guideline (10 mg N l–1) under DR (11.4 mg N l–1), but not under CDS (7.0 mg N l–1). In Phase 2 during the soybean-corn rotation, CDS reduced total tile discharge by 38% and total nitrate loss in tile discharge by 66%, relative to DR. The 4-year FWM nitrate concentration during Phase 2 in tile discharge was below the drinking water guideline for both DR (7.3 mg N l–1) and CDS (4.0 mg N l–1). During both phases of the experiment, the CDS treatment caused only minor increases in nitrate loss in surface runoff relative to DR. Hence CDS decreased FWM nitrate concentrations, total drainage water loss, and total nitrate loss in tile discharge relative to DR. In addition, soybean-corn rotation reduced FWM nitrate concentrations and total nitrate loss in tile discharge relative to continuous corn. CDS and crop rotations with reduced N fertilizer inputs can thus improve the quality of tile discharge water substantially.

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