POPULATIONS OF METHANOGENIC BACTERIA IN PADDY FIELD SOIL UNDER DOUBLE CROPPING CONDITIONS (RICE-WHEAT)

被引：66

作者：

ASAKAWA, S

HAYANO, K

机构：

[1] Laboratory of Soil Microbiology, Kyushu National Agricultural Experiment Station, Nishigoshi, Kumamoto

来源：

BIOLOGY AND FERTILITY OF SOILS | 1995年 / 20卷 / 02期

关键词：

METHANOGENIC BACTERIAL POPULATION; PADDY FIELD SOIL; DOUBLE CROPPING;

D O I：

10.1007/BF00336589

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The methanogenic populations able to use H-2-CO2, methanol, and acetate were investigated in paddy dy field soil in situ under double cropping conditions [rice (Oryza sativa L.) as a summer crop under flooded conditions and wheat (Triticum aestivum L.) as an upland winter crop] over 2 years approximately bimonthly by the most probable number method. Three fields, one without fertilizer, one treated with inorganic fertilizer (mixed fertilizer including urea, ammonium phosphate, and potassium sulfate), and one treated with wheat straw plus inorganic fertilizer, were examined. The population of H-2-CO2, methanol, and acetate utilizers in the paddy field soil at a depth of 1-6 cm was 10(3)-10(4), 10(4)-10(5), and 10(4)-10(5) g(-1) dry soil, respectively. These values were almost constant during the 2 years irrespective of moisture regime (flooded or nonflooded), crop (rice or wheat), fertilizer treatment, and soil depth (0-1, 1-10, and 10-20 cm).

引用

页码：113 / 117

页数：5

共 21 条

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