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一、谷子在旱作农业中的地位我县属于半干旱地区,经常遭受干旱威胁。据1953～1982年资料记载,30年平均年降水为471.04毫米,5～9月平均(生育期降水)降水量为408.77毫米,占总降水量的86.8%,降水量主要集中在7、8两月。降水是春秋少、夏季多,春旱秋吊时有发生。特别是近三年来(1980～1982),降水只及常年的50～70%。在这种自然条件下,扩大种植耐早作物谷子是
First, the status of millet in dry farming My county is a semi-arid region, often subjected to the threat of drought. According to the data from 1953 to 1982, the average annual precipitation in 30 years was 471.04 millimeters. The average precipitation (precipitation during the period of September to September) was 408.77 millimeters, accounting for 86.8% of the total precipitation. The precipitation was mainly concentrated in 7, 8 month. Precipitation is less spring and summer, more spring and autumn fall suspension occurs. Especially in the last three years (1980-1982), the precipitation is only 50-70% of that of normal years. In this natural condition, expanding the planting of early crop millet is