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Annex 7. Data used for macrolevel nutrient balances in a 2003 FAO study on Ghana, Kenya and Mali


IN1: MINERAL FERTILIZER

TABLE A7.1
Fertilizer consumption per crop as factor of total consumption

Crop

Ghana

Kenya

Mali

N

P

K

N

P

K

N

P

K

Banana

0

0

0.02

0.008

0.009

0




Barley




0.008

0.028

0.011




Cassava

0.05

0.02

0.03

0

0

0

0

0

0

Citrus

0

0

0

0.003

0.002

0.006




Cocoa

0

0.01

0.01







Coconuts

0

0

0

0

0

0




Coffee

0

0

0

0.116

0.047

0.322




Cotton

0.03

0.03

0.04

0.002

0.042

0.011

0.53

0.47

0.40

Fallow

0

0

0

0

0

0

0

0

0

Fibres







0

0

0

Groundnuts

0.03

0.07

0.04

0.005

0.004

0

0.04

0.13

0.18

Maize

0.5

0.41

0.42

0.274

0.255

0

0.12

0.20

0.34

Millet

0.05

0.06

0.01

0

0

0

0

0

0

Oil-palm

0.02

0.06

0.07







Other cereals







0

0

0

Other fruits

0

0

0

0.072

0.043

0.350

0

0

0

Other roots

0.11

0.13

0.1

0

0

0

0

0

0

Plantains

0.01

0.01

0.04

0.005

0.006

0




Potatoes




0.087

0.064

0




Pulses

0.01

0.04

0.01

0.106

0.119

0.079

0.00

0.07

0.05

Rice

0.06

0.06

0.09

0.014

0.009

0

0.30

0.12

0.00

Rubber

0

0

0







Sesame seed




0

0

0




Sorghum

0.05

0.04

0.04

0.052

0.025

0

0

0

0

Sugar cane

0.01

0.01

0.01

0.026

0.026

0.068

0

0

0

Sunflower Seed




0

0

0




Sweet potatoes

0

0

0

0

0

0

0

0

0

Tea




0.090

0.023

0.051

0

0

0

Tobacco

0

0

0

0.003

0.011

0.011

0

0

0

Vegetables

0.07

0.05

0.07

0.075

0.125

0.090

0.01

0.01

0.03

Wheat




0.058

0.162

0

0

0

0

TABLE A7.2
Total fertilizer consumption


N

P

K

(tonnes)

Ghana

7 994

2 002

3 920

Kenya

52 733

30 638

11 667

Mali

20 367

6 362

10 694

Source: FAOSTAT.

IN2: ORGANIC INPUTS

TABLE A7.3
Manure application factors per crop*

Crop

Ghana

Kenya

Mali

Banana

0

0

-

Barley

-

1

-

Cassava

0

0

0

Citrus

0

0

-

Cocoa

0

-

-

Coconuts

0

0

-

Coffee

0

2

-

Cotton

1

1

2

Fallow

0

0

0

Fibres

-

-

0

Groundnuts

1

1

1

Maize

1

2

2

Millet

1

1

1

Oil-palm

0

-

-

Other cereals

-

-

1

Other fruits

1

1

1

Other roots

0

0

0

Plantains

0

0

-

Potatoes

-

0

-

Pulses

1

1

0

Rice

0

0

0

Rubber

0

-

-

Sesame seed

-

1

-

Sorghum

1

1

1

Sugar cane

0

0

0

Sunflower Seed

-

0

-

Sweet potatoes

0

0

0

Tea

-

0

0

Tobacco

0

0

0

Vegetables

1

1

1

Wheat

-

1

1

* 0 = no manure, 1 = manure, 2 = twice as much manure.

TABLE A7.4
Aggregation and loss factor for storage of manure


Ghana

Kenya

Mali

Aggregation factor

2

1.5

2

Loss factor (%)

40

15

25

OUT1: CROP PRODUCTS

TABLE A7.5
Harvested area and yield per country per crop

Crops

Yield (kg/ha)

Harvested area (ha)

Ghana

Kenya

Mali

Ghana

Kenya

Mali

Bananas

3 211

5 579

-

4 733

40 333

-

Barley

-

2 581

-

-

22 267

-

Cassava

11 871

9 288

10 071

619 760

98 333

907

Citrus

7 073

6 886

-

41 867

6 521

-

Cocoa

302

-

-

1 246 500

-

-

Coconuts

5 714

4 402

-

53 100

15 000

-

Coffee

323

362

-

15 710

178 136

-

Cotton

820

595

1 011

50 387

38 866

496 401

Fibres

-

-

650

-

-

2 000

Groundnuts

1 007

1 276

854

185 077

15 145

190 248

Maize

1 489

1 513

1 564

681 707

1 523 587

286 232

Millet

885

504

823

178 910

88 233

920 416

Oil-palm

9 404

-

-

106 667

-

-

Other cereals

-

-

333

-

-

300

Other fruits

7 536

6 653

13 950

19 800

23 482

3 197

Other roots

8 964

5 000

5 878

213 787

2 000

4 402

Plantains

7 956

4 492

-

241 233

85 333

-

Potatoes

-

4 347

-

-

94 051

-

Pulses

100

350

371

153 333

700 000

319 715

Rice

1 699

3 749

2 030

117 800

14 607

328 494

Rubber

611

-

-

17 133

-

-

Sesame seed

-

429

-

-

28 000

-

Sorghum

1 056

915

970

322 553

136 667

634 920

Sugar cane

25 369

83 621

67 970

5 600

58 000

4 477

Sunflower seed

-

850

-

-

9 432

-

Sweet potatoes

1 369

9 579

7 024

6 0200

71 333

3 730

Tea

-

2 214

630

-

114 964

90

Tobacco

591

1 185

987

3 900

13 980

376

Vegetables

5 255

8 289

6 623

131 688

81 523

48 564

Wheat

-

1 570

1 818

-

144 405

3 104

Source: FAOSTAT.

OUT2: CROP RESIDUES

TABLE A7.6
Crop residue removal factors per country

Crop

Ghana

Kenya

Mali

(%)

Banana

10

20

-

Barley

-

35

-

Cassava

40

20

20

Citrus

10

15

-

Cocoa

10

-

-

Coconuts

10

20

-

Coffee

10

15

-

Cotton*

60

60

60

Fallow

5

5

5

Fibres

-

-

10

Groundnuts

30

60

80

Maize

30

75

80

Millet

30

70

50

Oil-palm

10

-

-

Other cereals

-

-

60

Other fruits

40

50

50

Other roots

25

20

25

Plantains

10

20

-

Potatoes

-

20

-

Pulses

30

70

80

Rice

15

20

35

Rubber

10

-

-

Sesame seed

-

75

-

Sorghum

30

70

50

Sugar cane

10

20

20

Sunflower seed

-

40

-

Sweet potatoes

30

20

30

Tea

-

15

10

Tobacco

10

20

10

Vegetables

40

60

80

Wheat

-

60

40

* Cotton is mainly removed by burning, which means all N and 50 percent of K is lost.


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