Effect of combined application of bioorganic manure and inorganic nitrogen fertilizer on soil nitrogen supplying characteristics

Abstract

Abstract: Pot experiment was carried out to study the effect of application bioorganic manure on soil nitrogen supplying characteristics. Compared with the application of raw rice straw,a combined application of bio organic manure and inorganic nitrogen fertilizer could boost the content of microbial biomass carbon and nitrogen,and the increased percentage could be 300～400 %. Astrong immobilization of nitrogen by microorganisms was always followed by a net Nmineralization, which was mostly favorable for the growth and development of plant,and improved the use efficiency of nitrogen fertilizer.

Key words: Rice straw, Bioorganic manure, Soil biomass N, Use efficiency of fertilizer nitrogen, carbon starvation, Robinia pseudoacacia plantation, growth decline, hydraulic failure, climate change, soil desiccation

CLC Number:

S141
S571

ZHANG Yali, ZHANG Juan, SHEN Qirong, WANG Jinchuang . Effect of combined application of bioorganic manure and inorganic nitrogen fertilizer on soil nitrogen supplying characteristics[J]. Chinese Journal of Applied Ecology, 2002, (12): 1575-1578.

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