shuangbaoguzaipeiguochengzhongheqitashiyongjunzuidadebutongshixuyaofutu。bufutuzebuchuguhuohenshaochugu。shuangbaoguzaizaipeitiaojianxia

，youjunsitideshengchangzhuanxiangzishitidefayuguocheng，futushiyigezhongyaodeyoudaoyinsu。覆土在雙孢菇生長過程中的作用如下：1.futucengzailiaomiankeyizaochengyigewenshidujiaoweiwendingdexiaoqihou
，youliyujunleidexingcheng。futuyihou，shiluoludeliaomianzengjialeyicengbaohuceng，jinenghuanhewendudebianhua，younengjiangdishuifendezhengfa
，shidetucengneiyouyigejiaoweiwendingdexiaoqihouhuanjing。2.futuhougaibianleliaomianhetucengeryanghuatanheyangqidebili，cujinjunsiniujiechengzishiti。mogujunsitihezishitiduieryanghuatandenaishoulishiyouchayide。futuyihouyinqiliaomianhetucengzhongeryanghuatanhanliangdebianhua，congerkongzhimogujunsizaitucengzhongdeshengchang，shizhijishixingchengjunlei。3.覆fu土tu後hou改gai變bian了le營ying養yang條tiao件jian，促cu進jin菌jun絲si在zai營ying養yang較jiao差cha的de土tu層ceng中zhong由you營ying養yang生sheng長chang轉zhuan向xiang生sheng殖zhi生sheng長chang。蘑mo菇gu菌jun絲si在zai營ying養yang豐feng富fu的de培pei養yang料liao內nei生sheng長chang旺wang盛sheng，當dang生sheng長chang到dao覆fu土tu層ceng時shi由you於yu營ying養yang成cheng分fen含han量liang甚shen微wei，生sheng長chang就jiu受shou抑yi製zhi，從cong而er轉zhuan向xiang生sheng殖zhi發fa育yu而er結jie菇gu。4.覆土對料表菌絲的物理性刺激作用
，可促進子實體的形成。這種物理刺激有利於蘑菇菌絲的扭結和分化。5.覆fu土tu層ceng可ke隨sui時shi供gong給gei蘑mo菇gu生sheng長chang所suo需xu的de大da量liang水shui分fen。蘑mo菇gu生sheng長chang發fa育yu過guo程cheng中zhong的de周zhou期qi性xing變bian化hua，較jiao其qi他ta食shi用yong菌jun更geng為wei突tu出chu明ming顯xian。因yin此ci出chu菇gu旺wang期qi需xu要yao補bu充chong大da量liang的de水shui分fen，供gong蘑mo菇gu吸xi收shou。假jia如ru沒mei有you土tu層ceng，料liao麵mian難nan以yi承cheng受shou這zhe樣yang的de大da量liang的de水shui分fen，而er土tu層ceng既ji能neng吸xi收shou貯zhu存cun這zhe樣yang多duo的de水shui分fen，空kong隙xi間jian又you有you足zu夠gou的de空kong氣qi供gong蘑mo菇gu吸xi收shou，因yin而er能neng維wei持chi蘑mo菇gu的de正zheng常chang生sheng長chang發fa育yu。6.覆土層可支持蘑菇子實體的正常生長。蘑菇子實體在裸露的料麵上無法正常直立生長，而覆土層卻起到了一種支撐子實體生長的作用。