|
| 年份 |
播种
面积 |
总产量（万吨） |
单产产量 |
| 万亩 |
千公顷 |
千克/每亩 |
千克/公顷 |
| 1949 |
|
|
|
|
|
| 1950 |
|
|
|
|
|
| 1951 |
|
|
|
|
|
| 1952 |
|
|
|
|
|
| 1953 |
|
|
|
|
|
| 1954 |
|
|
|
|
|
| 1955 |
|
|
|
|
|
| 1956 |
|
|
|
|
|
| 1957 |
|
|
|
|
|
| 1958 |
|
|
|
|
|
| 1959 |
|
|
|
|
|
| 1960 |
|
|
|
|
|
| 1961 |
|
|
|
|
|
| 1962 |
|
|
|
|
|
| 1963 |
|
|
|
|
|
| 1964 |
|
|
|
|
|
| 1965 |
|
|
|
|
|
| 1966 |
|
|
|
|
|
| 1967 |
|
|
|
|
|
| 1968 |
|
|
|
|
|
| 1969 |
|
|
|
|
|
| 1970 |
|
|
|
|
|
| 1971 |
|
|
|
|
|
| 1972 |
|
|
|
|
|
| 1973 |
|
|
|
|
|
| 1974 |
|
|
|
|
|
| 1975 |
|
|
|
|
|
| 1976 |
|
|
|
|
|
| 1977 |
|
|
|
|
|
| 1978 |
|
|
|
|
|
| 1979 |
|
|
|
|
|
| 1980 |
2.3
|
1.5
|
0.5
|
212
|
3180
|
| 1981 |
2.0
|
1.3
|
0.5
|
233
|
3495
|
| 1982 |
2.7
|
1.8
|
0.5
|
198
|
2963
|
| 1983 |
3.2
|
2.1
|
0.7
|
241
|
3615
|
| 1984 |
2.6
|
1.7
|
0.5
|
210
|
3150
|
| 1985 |
2.6
|
1.7
|
0.5
|
194
|
2910
|
| 1986 |
2.9
|
1.9
|
0.5
|
179
|
2685
|
| 1987 |
5.0
|
3.3
|
0.7
|
138
|
2070
|
| 1988 |
3.2
|
2.1
|
0.7
|
226
|
3390
|
| 1989 |
3.8
|
2.5
|
0.9
|
243
|
3645
|
| 1990 |
4.4
|
2.9
|
0.9
|
209
|
3135
|
| 1991 |
3.9
|
2.6
|
0.9
|
231
|
3465
|
| 1992 |
4.1
|
2.7
|
0.9
|
222
|
3333
|
| 1993 |
4.1
|
2.7
|
0.9
|
222
|
3333
|
| 1994 |
3.9
|
2.6
|
1
|
256
|
3846
|
| 1995 |
4.2
|
2.8
|
1.1
|
262
|
3928
|
| 1996 |
4.5
|
3
|
1.3
|
289
|
4333
|
| 1997 |
4.7
|
3.1
|
1.4
|
301
|
4516
|
| 1998 |
4.5
|
3
|
1.3
|
289
|
4333
|
| 1999 |
4.8
|
3.2
|
1.4
|
292
|
4375
|
| 2000 |
5.1
|
3.4
|
1.4
|
292
|
4375
|
| 2001 |
5.1
|
3.4
|
1.7
|
333
|
5000
|
| 2002 |
6.0
|
4
|
2
|
315
|
4722
|
|