金針菇優質的標準是菌蓋呈半圓球形,直徑0.5~1.3厘米,菌柄長度14~15厘米,整齊度80%以上,無雜質無褐根。通過套紙筒可促使金針菇達到這樣的標準。
套紙筒就是當金針菇長到一定高度時,在平栽的金針菇菌袋上再套一個高約12厘米的紙筒,但不適用於堆袋栽培的金針菇。套紙筒有三方麵的好處:首先,可以限製菌柄、菌jun蓋gai與yu外wai界jie空kong氣qi的de接jie觸chu,控kong製zhi供gong氧yang量liang,從cong而er促cu進jin菌jun柄bing的de伸shen長chang,抑yi製zhi菌jun蓋gai的de生sheng長chang。因yin為wei若ruo供gong氧yang充chong足zu,金jin針zhen菇gu的de菌jun蓋gai發fa育yu快kuai,菌jun蓋gai大da,商shang品pin性xing降jiang低di,套tao紙zhi筒tong則ze限xian製zhi了le空kong氣qi的de流liu動dong,減jian少shao了le氧yang氣qi對dui菌jun蓋gai的de供gong應ying,所suo以yi菌jun蓋gai生sheng長chang就jiu慢man,而er氧yang氣qi不bu足zu又you會hui促cu進jin菌jun柄bing的de快kuai速su生sheng長chang。其qi次ci,可ke以yi抑yi製zhi菌jun蓋gai過guo早zao開kai傘san,防fang止zhi子zi實shi體ti倒dao伏fu。金jin針zhen菇gu菌jun蓋gai與yu菌jun柄bing的de生sheng長chang是shi相xiang互hu製zhi約yue的de,當dang菌jun柄bing伸shen長chang生sheng長chang時shi,菌jun蓋gai的de生sheng長chang就jiu會hui受shou到dao抑yi製zhi,套tao紙zhi筒tong後hou菌jun蓋gai長chang得de小xiao,並bing且qie開kai傘san慢man。第di三san,可ke以yi減jian少shao菌jun蓋gai見jian光guang,保bao證zheng子zi實shi體ti的de顏yan色se潔jie白bai。
其實套紙筒很簡單,菜農可將廢舊報紙 (如果使用通氣性好的牛皮紙最好)剪成12厘米寬的長條,然後按菌袋的直徑卷成筒,當金針菇的子實體長出菌袋2~3limigaoshi,jiangzhitongtaozaijundaishang。danshiyaozhuyizhitongyujinzhenguzishitibunengjiechu,fangzhipenshuishijiangzhitongnongshi,shuidijiechudaozishitihouyinqizishitibianse,jiangdishangpinxing。
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