现蕾至初花期刈割，刈草的营养成分含量最高。
The highest nutritive values of sweetclover is during the period from prebloom to early bloom.
紫花苜蓿初花期的CAD低于现蕾期和盛花期。
The CAD of alfalfa in early bloom was lower than that in budding stage and mid-bloom.
每角粒数与初花期干物质积累量与返青至初花阶段干物质净增量呈抛物线型关系。
Seed number per pod was parabolic correlated to dry matter accumulation at beginning-flower stage and net dry matter accumulation from turning green to beginning-flower stage.
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