The Effects of Different Land-use Types on Farm Black Soil Acidification

To study the effect of various land-use types on pH in black soil,the long-term experimented agricultural soil,which located in Hailun Agricultural Ecological Experimental Station,was taken as a research example.Long-term continuous cropping induced soil acidification.However,plant species had different effect,the order was maizesoybeanwheat.The content of water also affected pH in soil, pH in soil increased as water content increased,and decreased as water content decreased.Fertilizer type affected pH in soil.The pH was kept in stable in no fertilizer apply treatment.Chemical fertilizer increased soil acidification,however,soil acidification was reduced with organic fertilizer application.All these suggested that soil pH can be stable with various land-use types and sustainable productivity can be maintained.