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1970年春天,皮口镇群众根据在水稻田化肥深施、集中施比浅施、撒施效果好的道理,将硫铵、过磷酸钙、马粪、黄泥混在一起,用手握成5～7钱重的圆球,深施到水田里,当年比一般施肥田增产20％左右。1971年皮口农具厂、食品厂、服装厂等单位先后设计制造出各种球肥制造机。现将我厂制造的球肥机介绍如下:球肥机的结构类似做煤球的对滚式挤压机(见下图)。工作时由电动
In the spring of 1970, according to the principle of deep application of fertilizers in paddy fields and concentrated application of shallow fertilizers on rice fields, the masses in Pikou town mixed with ammonium sulfate, superphosphate, horse manure and yellow mud mixed with 5 ~ 7 money balls, applied to the paddy fields, when compared with the general fertilization field yield about 20%. 1971 Pikou farm tools factory, food factory, garment factory and other units have designed and manufactured a variety of ball fertilizer manufacturing machine. Now I plant made fertilizer machine introduced as follows: The structure of the fertilizer machine is similar to the briquettes made on the roll-type extruder (see below). Work by electric