本刊第三期所介绍的半坑式通气性高温酦酵制造堆肥法一文中所说的堆积坑内斜沟的挖掘,因叙述不甚明了,又未附图,致引起很多读者来函询问,殊为抱歉!特补充说明如下:该项斜沟底部,连接十字形沟的部份.宽为6寸深亦6寸,以后往上挖掘至圆堤上部时,沟的内侧宽度,仍可为6寸,外侧可增宽至8寸或1尺,沟的深 The publication of the third issue of the half-pit ventilation high-temperature fermented yeast manufacturing composting method mentioned in the accumulation pit pit excavation, because the narrative is not clear, and not with the drawings, causing many readers to inquire, special Sorry for the inconvenience! Special supplements are as follows: The bottom of this oblique groove connects the part of the cruciform groove, the width is 6 inches deep and 6 inches, and when digging up to the upper part of the embankment, the inside width of the groove can still be 6 Inch, the outside can be widened to 8 inches or 1 foot, deep groove