squaring stage meaning in English

现蕾期

The results showed that it was benefit for the root system and nodule growth of faba bean on squaring stage and blooming stage under phosphorus and phosphorus add potassium fertilizer ; the benefit was not significant for the root system and nodule growth of faba bean in all stage under potassium fertilizer ; nitrogenous add phosphorus add potassium fertilizer was benefit for the root system growth , but it restrained to the nodule growth of faba bean on squaring stage and blooming stage
结果表明：单施磷肥和磷钾肥配施在现蕾期和开花期对根系和根瘤生长均有较好的促进作用；单施钾肥在各个时期对根系和根瘤生长的促进作用不大；氮磷钾肥配施对根系生长较好，但在现蕾期和开花期对根瘤生长有抑制作用。