Agriculture Reference
In-Depth Information
• The unit productivity of the mechanized tillage increased from 0.08 ha/h in
1996 to 0.10 ha/h in 2010, an average annual increase of 1.86%.
• The unit productivity of the mechanized sowing increased from 0.25 ha/h
to 0.30 ha/h, an average annual increase of 1.27%.
• The unit productivity of the mechanized harvesting increased from 0.06
ha/h to 0.19 ha/h, an average annual increase of 8.13%, which is the largest
growth rate in these four operations.
• The unit productivity of the mechanized irrigation increased from 74.41
m3/h to 79.87 m3/h, an average annual increase of 0.51%.
TABLE 3:
Unit productivity of the four operations.
Year
Mechanized
Tillage (ha/h)
Mechanized
Sowing (ha/h)
Mechanized
Harvesting (ha/h)
Mechanized
Irrigation (m
3
/h)
1996
0.08
0.25
0.06
74.41
1997
0.08
0.25
0.06
75.35
1998
0.08
0.25
0.07
74.01
1999
0.08
0.26
0.07
75.03
2000
0.08
0.26
0.07
75.95
2001
0.08
0.26
0.08
76.74
2002
0.08
0.27
0.08
76.77
2003
0.08
0.27
0.09
76.05
2004
0.09
0.27
0.10
76.75
2005
0.09
0.28
0.12
77.33
2006
0.09
0.28
0.13
77.17
2007
0.09
0.29
0.15
77.40
2008
0.09
0.29
0.17
78.30
2009
0.10
0.30
0.18
79.28
2010
0.10
0.30
0.19
79.87
Figure 7 shows the changes in unit productivity compared with that
in the previous year. The red part indicates changes in unit productivity
caused by technological progress. The blue part indicates changes in unit
productivity caused by changes in machinery quantity at different inter-
vals (structural infl uence).
