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Strip-Tillage for Corn Production in Kansas
Barney Gordon and Ray LamondKansas State University
No-Till Advantages of No-tillage include: reduction of soil erosion, increased soil water use efficiency, improved soil quality, and time and labor savings. Disadvantages: High residue production systems can depress early-season plant growth and reduce nutrient uptake.
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Effects of Soil TemperatureWhen soil temperature was reduced from
70 to 58 degrees Fahrenheit:Corn root growth decreased 5-foldP uptake by corn roots decreased 4-fold
(Mackay and Barber, 1984 Purdue)
P Flux into Roots of Corn and Plant Age
0
2
4
6
8
10
12
14
20 30 40 50 60 70 80 90 100 110 120
Days After Planting
P F
lux,
um
oles
/met
er/d
ay
Mengel and Barber, 1973
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Strip-tillageStrip-tillage can provide an environment that conserves soil and water while establishing a seed-bed that is similar to conventional tillage.
ObjectivesCompare effectiveness of strip-tillage to no-tillageAccess the effects of fall vs spring applications of N-P-K fertilizers on growth, grain yield, and nutrient uptake of corn grown in strip-tilled or no-tillage production systems.
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Tillage Treatments in Residue
Strip-till in Fall: Fall applied fertilizer.Strip-till in fall: no fall fertilizer, spring applied fertilizer with planter.No-Strip-Till, spring applied fertilizer with planter.
TreatmentsFertility Treatments
1) 0-0-0 Check2) 40-30-5-53) 80-30-5-54) 120-30-5-55) 80-15-2.5-2.5(Fall)
+40-15-2.5-2.5(Spring)
Timing1) Fall Strip-Till +Fall
Applied Fertilizer.2) Fall Strip-Till +
Planting Time Fertilizer.
3) No-Till Planting + Planting Time Fertilizer.
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•ManhattanN. Agronomy Farm
•BellevilleN. C. Kansas Expt. Fld.
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Fall Strip-Tillage
Strip-Tillage
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Belleville, 2002
3716.665296No-Till
4913.858456Strip-Till
Yield, bu/a
Moist, %
Day to Mid-Silk
V-8 Dry wt, lb/a
Treat.
Tillage Effects on V6 Nutrient Uptake, Belleville
91.09No-Till
131.614Strip-Till
--------------lb/acre---------------
KPNTreatment
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Manhattan, 2002
55101.513379No-Till
58132.017490Strip-Till
KPNDry Wt.
Yieldbu/a
V-6 Whole Plantlb/a
Treat.
Soil Temperature at Planting DepthManhattan, 2003
4045505560657075808590
4/15/03 4/29/03 5/13/03 5/27/03
Deg
rees
F
Strip-TillNo-Till
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Soil Temperature at Planting Depth Belleville, 2003
5053565962656871747780
4/25/03 5/5/03 5/15/03 5/25/03
Deg
rees
F
Strip-tillNo-till
No-Till Vs Strip-Till Early Season Growth
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Strip-till vs No-till
Grain Yield, Belleville 2003
bu/acre
4861Average
5171120-30-5-5
486080-30-5-5
455240-30-5-5
No-TillStrip-TillFertilizer Treatment
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Grain Yield, Belleville 2003
bu/acre
6161Average
7168120-30-5-5
605880-30-5-5
525640-30-5-5
Strip-Till, Spring Fertilize
Strip-Till, Fall Fertilize
Fertilizer Treatment
Grain Yield, Belleville 2003
75120-30-5-5 Split (2/3 fall, 1/3 spring)
71120-30-5-5 Spring
68120-30-5-5 Fall
Yield, bu/acreFertilizer Treatment
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Belleville, 2003
4517.566168No-Till
6014.556299Strip-Till
Yield, bu/a
Moist, %
Day to Mid-Silk
V-6 Dry wt, lb/a
Treat.
Grain Yield, Manhattan 2003
bu/acre
158186Average
153187120-30-5-5
16818780-30-5-5
15218540-30-5-5
No-TillStrip-TillFertilizer Treatment
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Grain Yield, Manhattan 2003
bu/acre
186193Average
187205120-30-5-5
18719280-30-5-5
18518240-30-5-5
Strip-Till, Spring Fertilize
Strip-Till, Fall Fertilize
Fertilizer Treatment
Grain Yield, Manhattan 2003
186120-30-5-5 Split (2/3 fall, 1/3 spring)
194120-30-5-5 Spring
204120-30-5-5 Fall
Yield, bu/acreFertilizer Treatment
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SummaryEarly-season plant growth and nutrient uptake was greater with strip-till than no-till.Corn in strip-till plots reached mid-silk sooner
and had lower grain moisture at harvest.Grain yields were improved with strip-tillage.Under Kansas conditions, fall applied fertilizer was as effective as spring applied.
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