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20 0 0年度全国桑蚕种繁制发放数量和桑蚕茧生产指导性计划地区平均单产测算水平(kg/盒 )2 0 0 0年度蚕种指导性计划 (盒 )1998年实际产茧量(t)1999年预计产茧量(t)2 0 0 0年桑蚕茧指导性计划 (t)山西 2 5 .0 172 0 0 0 436 34 2 10 430 0河北 2 5 .0 2 80 0 0 70 0 710 70 0江
2000 Annual Quantitative Distribution of Silkworm Species and Estimated Average Yield Per Unit of Bombyx Mori Cocoon Production Plan (kg/box) 2000 Annual Seedling Programme of Silkworm Eggs (Box) Actual Pest Yield in 1998 (t ) Expected calving volume in 1999 (t) 2000 Bombyx mori instructional plan (t) Shanxi 2 5 . 0 172 0 0 0 436 34 2 10 430 0 Hebei 2 5 .0 2 80 0 0 70 0 710 70 0 River