黑耳吊袋栽培出２～３潮耳后，由于袋内水分、营养缺乏，就当废料扔掉，但袋内养分还未耗尽，为了多出耳，笔者象平菇后期覆土那样，对黑木耳后期进行覆沙，取得了可喜的效益。现介绍如下： 将出过２～３潮耳后的菌袋脱袋，用大颗粒状的含水量为５０％的河沙和１％的石灰拌匀， Black ear bag cultivated out of 2 to 3 tide ears, due to the bag of water, lack of nutrition, when the waste thrown away, but the bag of nutrients have not been depleted, in order to more ears, I like mushrooms over casing as it Black fungus late sand cover, made gratifying benefits. Are introduced as follows: out of 2 to 3 after the eardrum bag bacteria bag, with a large granular water content of 50% of the river sand and 1% lime mix well,