Spatial Modeling of Nitrogen Leaching
45
Table 1. Tillage measures in crop rotation CR4-a and CR4-b (cover crops and
pasture of CR4-b displayed shaded gray)
23.02 Fertilization
NITRAMONCAL (180 kg ha- I )
23.02 Spike harrow
23.02 Drill planting summer barley
21.07 Harvesting summer barley
23.07 Chisle plow
23 .07 Fertilization PK 15:30
(400 kg ha- I
15.08 Spike barrow
15.08 Drill planting pasture
15.10 Mulch treader
09.02. Fertilization NPK 20:8:8
(200 kg ha· l )
31.03. Fertilization NPK 20:8:8
(200 kg ha· l )
01.07. Harvesting canola
05.07. Disc harrow
26.07. Spike harrow
10.08. Drill planting cover crop
(mustard)
15.10. Mulch treader
02.12. Moldboard plow
03.07 Mulch treader
23.02. Fertilization NITRAMO CAL
26.08 Mulch treader
(180 kgfha)
04.09 Disc harrow
Spike harrow
15.09 Moldboard Plow
Drill planting summer barley
24.09 Spike harrow
21.07. Harvesting summer barley
25.09 Drill planting winter barley 23.07. Chisle plow
08.03 Fertilization NPK 20:8:8
(250 kg ha- I )
}O.OS Fertilization NITRAMONCAL
(150 kg ha- I )
29.06 Harvesting winter barley
01.07. Disc harrow
26.07. SEike harrow
10.08. Drill planting cover crop
(mustard)
15.10. Mulch treader
02.12. Moldboard plow
01 .03. Spike harrow
Row planting peas
15.07. Harvesting peas
18 .07. Disc harrow
04.10. Spike harrow
Fertilization PK 15:30
400 kg ha- I
15.08. Spike harrow
Drill planting pasture
15.10. Mulch treader
03.07.
26.08.
04.09.
15.09.
04.10.
Mulch treader
Mulch treader
Disc harrow
Moldboard low
Spike harrow
Drill planting winter wheat
08.03. Fertilization NPK 20:8:8
(200 kg ha· l )
21,04. Fertilization NPK 20:8:8
(150 kg ha· l )
15.05. Fertilization NITRAMO CAL
(110 kg ha- I )
20.07. Harvestin winter wheat