CHARACTERISTICS OF MICROBIAL BIOMASS AND SOIL ORGANIC-MATTER IN NEWLY RECLAIMED WETLAND RICE SOILS

被引：12
|
作者：
YOSHIKAWA, S
INUBUSHI, K
机构：
[1] MIE UNIV,FAC BIORESOURCES,TSU,MIE 514,JAPAN
[2] MIE PREFECTURAL AGR RES CTR,URESHINO,MIE 51522,JAPAN
来源：
BIOLOGY AND FERTILITY OF SOILS | 1995年 / 19卷 / 04期
关键词：
MICROBIAL BIOMASS; WETLAND RICE SOIL MINERALIZABLE NITROGEN; RECLAMATION; SOIL ORGANIC MATTER; BARNYARD MANURING;
D O I：
10.1007/BF00336097
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
Microbial biomass C, N, total organic C, N and mineralizable N were measured in newly reclaimed wetland sandy loam rice soil with a very low nutrient status. Microbial biomass C increased 5.4-10.4 times due to application of barnyard manure, but decreased drastically to 24-27% during rice cultivation. Organic C and N contents also decreased during cultivation, but to a lesser extent to 59-76%. At the tillering stage of the rice plant, microbial biomass N was highly correlated with mineralizable N (r = 0.986).
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页码：292 / 296
页数：5
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