212
Table 7.8: Crop yield growth rates, commercial farms sector (percent)
|
Farm size | ||||||
|
1975-1989 |
1983-1989 | |||||
|
Small |
Medium |
Large |
Small |
Medium |
Large | |
|
Northwest region ' | ||||||
|
Maize |
2.7 |
-2.5 |
3.7* |
9.9* |
-1.5 |
6.1 |
|
Wheat' |
-10.0 |
11.6 |
28.9° |
124.2 |
36.6 |
-6.0 |
|
Tobacco |
.6 |
-1.0 |
-4.7 |
7.0 |
-3.8 |
-16.2 |
|
Sunflower' |
1.4 |
3.4 |
-8.9° |
10.2 |
6.5 | |
|
Soybean |
-4.7 |
- .7 |
5.9 |
-16.2 ’ |
-7.4 |
1.3 |
|
Seed maize" |
16.4" |
10.0 |
-14.2 |
-29.8° |
20.7 |
2.3 |
|
Potato |
-6.9 |
36.8 |
10.6 |
-43.9 |
34.9 |
15.6 |
|
Cotton' |
-12.2 |
-20.0° |
-19.7 |
-22.7 | ||
|
Coffee' |
589.5 |
8.8 |
-56.2 |
589.5 |
8.8 |
-56.2 |
|
Burley tobacco' |
-.7 |
-.8 |
.0 |
-2.0 |
-9.1 | |
|
Southeast region` | ||||||
|
Maize |
.2 |
.3 |
3.8* |
8.6 |
3.2 |
11.2 |
|
Wheat |
2.9 |
.1 |
-1.6 |
-6.9 |
5.1 |
-6.5 |
|
Tobacco |
-1.3 |
3.0 |
6.0"’ |
-17.0 |
-1.2 |
1.2 |
|
Sunflower |
2.5* |
2.8 |
.1 |
* 10.4* |
-.7 |
-3.4 |
|
Soybean |
-4.1 |
5.4 |
-2.4 |
-8.4 |
-2.5 |
-9.9 |
|
Seed maize" |
9.4 |
.2 |
.5 |
4.7 |
5.9 |
24.3 |
|
Potato |
-5.2 |
11.3 |
13.6 |
-32.2 |
-27.6 |
-25.1 |
|
Cotton |
4.7’ |
-0.1 |
1.2 |
22.9* |
-2.2 |
6.9 |
|
Coffee' |
279.6 |
13.1 |
279.6 |
13.1 | ||
|
Burley |
21.4 |
-3.3 |
5.2 |
83.3 |
48.2 |
25.0 |
* The estimate of B in the regressions is significant at the 10 percent level.
** The estimate of B in the regressions is significant at the 5 percent level.
a. Yields derived from area and production data. Years with missing data on a particular crop/region combination were
excluded.
b. Includes Western, Northwestern, and Copperbelt, but not Luapula and Northern provinces.
c. Includes Central, Eastern, Lusaka, and Southern provinces.
d. Data exist for the following crops/regions/farm sizes in the listed years only: wheat/northwest/small (1982, 86-90);
sunflower/northwest/large (1975, 80-82, 88); seedmaize/northwest/small (1976-79, 81, 85-87, 89),
seedmaize/southeast/small (1975-81, 84, 86-87,89); cotton/northwest/medium (1982-83, 86-87); coffee/northwest/small
(1987-88), coffee/northwest/medium and large (1986-88), coffee/southeast/medium (1989-90), coffee/southeast/large
(1986-88), burley tobacco/northwest/small (1980-85), burley tobacco/northwest/medium (1980, 89), burley
tobacco/northwest/large (1979, 82-85, 89), burley tobacco/southeast/small (1979-80, 84, 89), burley
tobacco/southeast/medium (1979, 82-84, 89), burley tobacco/southeast/large (1979-80, 85, 88-90).
Source: Derived from Zambia CSO data.