|
| 年份 |
播种面积 |
总产量（万吨） |
单产产量 |
| 千公顷 |
万亩 |
千克/公顷 |
千克/每亩 |
| 1949 |
8.0
|
12
|
|
|
|
| 1950 |
8.0
|
12
|
|
|
|
| 1951 |
8.0
|
12
|
|
|
|
| 1952 |
8.0
|
12
|
1.0
|
750
|
50
|
| 1953 |
9.0
|
14
|
1.0
|
885
|
59
|
| 1954 |
7.0
|
11
|
1.0
|
720
|
48
|
| 1955 |
15.0
|
23
|
1.5
|
945
|
63
|
| 1956 |
3.0
|
5
|
2.5
|
975
|
65
|
| 1957 |
17.0
|
26
|
2.0
|
1020
|
68
|
| 1958 |
24.0
|
36
|
|
|
|
| 1959 |
6.0
|
9
|
|
|
|
| 1960 |
|
|
|
|
|
| 1961 |
21.0
|
32
|
1.6
|
753
|
50
|
| 1962 |
19.0
|
29
|
2.0
|
1005
|
67
|
| 1963 |
23.0
|
35
|
3.0
|
1215
|
81
|
| 1964 |
19.0
|
29
|
2.0
|
1080
|
72
|
| 1965 |
21.0
|
32
|
2.0
|
1230
|
82
|
| 1966 |
|
|
|
|
|
| 1967 |
|
|
|
|
|
| 1968 |
|
|
|
|
|
| 1969 |
|
|
|
|
|
| 1970 |
13.0
|
20
|
1.5
|
195
|
13
|
| 1971 |
13.0
|
20
|
1.5
|
195
|
13
|
| 1972 |
9.0
|
14
|
1.5
|
1584
|
106
|
| 1973 |
12.0
|
18
|
1.5
|
1305
|
87
|
| 1974 |
10.0
|
15
|
1.0
|
1230
|
82
|
| 1975 |
10.0
|
15
|
1.0
|
1260
|
84
|
| 1976 |
10.0
|
15
|
1.5
|
1305
|
87
|
| 1977 |
10.0
|
15
|
1.5
|
1470
|
98
|
| 1978 |
10.0
|
15
|
1.0
|
1035
|
69
|
| 1979 |
8.8
|
13
|
1.5
|
1553
|
104
|
| 1980 |
7.9
|
12
|
1.0
|
1148
|
77
|
| 1981 |
7.0
|
11
|
1.0
|
1290
|
86
|
| 1982 |
7.1
|
11
|
1.0
|
1470
|
98
|
| 1983 |
6.9
|
10
|
0.9
|
1260
|
84
|
| 1984 |
7.9
|
12
|
1.1
|
1403
|
94
|
| 1985 |
7.1
|
11
|
1.0
|
1395
|
93
|
| 1986 |
8.5
|
13
|
1.0
|
1230
|
82
|
| 1987 |
7.7
|
12
|
1.1
|
1470
|
98
|
| 1988 |
6.9
|
10
|
1.0
|
1440
|
96
|
| 1989 |
8.1
|
12
|
1.2
|
1470
|
98
|
| 1990 |
11.9
|
18
|
1.6
|
1350
|
90
|
| 1991 |
32.2
|
48
|
7.4
|
2295
|
153
|
| 1992 |
27.8
|
42
|
7.7
|
2770
|
185
|
| 1993 |
18.7
|
28
|
6.0
|
3209
|
214
|
| 1994 |
14.4
|
22
|
4.3
|
2986
|
199
|
| 1995 |
41.4
|
62
|
8.9
|
2165
|
144
|
| 1996 |
42.2
|
63
|
9.0
|
2238
|
149
|
| 1997 |
31.0
|
47
|
8.4
|
2709
|
181
|
| 1998 |
32.7
|
49
|
8.7
|
2660
|
177
|
| 1999 |
27.3
|
41
|
7.5
|
2733
|
182
|
| 2000 |
25.3
|
38
|
8.5
|
3360
|
224
|
| 2001 |
19.9
|
30
|
6.2
|
3116
|
208
|
| 2002 |
17.0
|
26
|
6.0
|
3273
|
218
|
|