毛竹,别名楠竹,在我国分布最广,蓄积量最大,用途最多。毛竹笋在清明前后旬平均温度10℃左右时开始出土,持续期20～30天。初期出土竹笋数量少,养分充裕,退笋率低。盛期出土的竹笋数量最多,笋体健壮肥大,成竹质量高。末期出土的竹笋,俗称“罢林笋”养分不足,笋体弱小,生长缓慢、停滞,最后败退死亡。甚至有不出土而死亡的,称为 Bamboo, alias bamboo, the most widely distributed in our country, the largest volume, most uses. Bamboo shoots in the Ching Ming average temperature around 10 ℃ began unearthed for 20 to 30 days duration. Initially unearthed a small number of bamboo shoots, plenty of nutrients, bamboo shoots low rate. The number of bamboo shoots unearthed during the peak, bamboo shoots strong body fat, high quality bamboo. End of the bamboo shoots unearthed, commonly known as “strike the bamboo shoots” lack of nutrients, bamboo shoots weak, slow growth, stagnation, the last retreat death. Even there is not unearthed and died, known as