问题的提出 泥炭和磷矿粉混合经堆沤后制得的肥料叫腐殖酸磷,若加入适量碳铵叫腐铵磷,如再加入草木灰叫腐铵钾磷,这类肥料通称为腐殖酸磷肥。国内许多县、社队腐磷肥厂已生产这类肥料多年,施用面积较大。从各地及我县大田施用情况表明,一般表现了一定程度的增产作用。一些农科部门小区试验也证明在一部份处理中增产及增效作用是明显的。但是,这个增产、增效的主要原因何在?如能弄清这一原因,不仅对各地生产腐 The issue put forward Peat and phosphate rock by the reactor after the fertilizer obtained humic acid phosphorus, if adding the right amount of ammonium bicarbonate called ammonium phosphorus, such as re-adding ash is called potassium ammonium phosphate, such fertilizers commonly known as humus Acid phosphate fertilizer. Many domestic counties, social teams Phosphate fertilizer plant has produced such fertilizers for many years, the application area larger. The field application from various places and in our county shows that the general performance of a certain degree of stimulation of production. Some trials in the agricultural sector also proved that in some of the treatments, the effect of increasing production and increasing efficiency is obvious. However, what are the main reasons for this increase in production and efficiency? If we can understand this reason,