近日偶翻《中国花卉盆景》2004年第二期《百事问》,见南京徐学勤先生问:花卉市场用砻糠灰配制的盆花基质像黑炭一样,是如何制成的?记得初中物理学过木炭的形成,是木材隔绝空气干馏而成的,大跃进时代,笔者曾进深山烧过多年木炭。那是在山坡上挖一个坑,砌好烟管,留好灶口,装上木柴,用泥土筑好盖子,称为窑。从灶口烧火, Recently, the Chinese flower bonsai, “2004, the second issue of” Pepsi asked, "see Mr. Xu Xueqin Nanjing asked: flower market with chaff ash prepared potted flower matrix like black carbon, is how made? Remember junior high school physics The formation of charcoal is made of wood isolated from the air retort, the Great Leap Forward era, I have been into the mountains for many years burned charcoal. That is to dig a pit on the hillside, build a smoke pipe, keep the stove mouth, fitted with firewood, build a lid with clay, called the kiln. Burning fire from the kitchen stove,