Abstract:
Physical and chemical characteristics of domestic and foreign peats for agricultural utilization were compared.The results show that compared with the peat produced by foreign manufacturers,the domestic peat has a lower totalporosity,and higher bulk density and ash content.The domestic peat has less cation exchange capacity than the foreignpeat.Both pH and electric conductivity of the domestic peat are relatively higher.The N,P,and K contents of the domestic peat are 2,3~4 and 3~5 times higher than those of the foreign peat,while the domestic peat has similar available nutri-ents with foreign peat,except available iron.Foreign peat of which the pH is adjusted has much more available Ca than do-mestic peat does.