牧草种子生产
grass seed production
Herbage seed production
Forage seed production
the production of forage grass seeds
四级种子生产程序
four-stage seed-producing procedures
种子产量
the output of seeds
Seed output
yield of seed
Seed yield
seed production
output of the seed
Seeds yield
Seed yields
Seed
path-coefficient analysis
fertilizer application
种子产量构成
constitute of seed yields
种子产量性状
seed yield characteristics
same -priming effect
种子产量组分
Yield components of seed crop
yield components
种子生产程序
Seed production procedure
种子生产技术
Seed production technique
seed production technology
seed production techniques
technique for seed production
seed prod uction technology