解开;摆脱牵制
The yields of spring tea in unpinning years after once light-pruning for two years, three years, and four years were increased by 37. 33%~ 24.13% than that of light-pruning every year;
隔一年、二年、三年轻修剪,其不修剪年份的春茶产量比年年轻修剪提高37.33~24·13%;
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