Use of Soil Animals as Bioindicators of Various Kinds of Soil Management in Northern Japan

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

As the soil invertebrate fauna is expected to modify several properties of upland soils in agriculture, the effect of the soil fauna on the soil properties and soybean growth under several kinds of soil management depending on the soil type, nitrogen source, tillage, insecticide and herbicide was investigated. Number of hand-sorted earthworms was positively correlated with the amount of soil aggregates (>diam. 2 mm) (r=0.85, p<0.01), and that of oribatid mites (Acari: Cryptostigmata) extracted by using modified Tullgren funnels was positively correlated with the nitrate nitrogen concentration in the soil (r=0.89, p<0.01). Number of oribatid mites was positively correlated with the content of total nitrogen and the content of total soil carbon in a Gray Lowland soil (both: r=0.99, p<0.01) and a Brown Forest soil (not significant), but negatively in an Andosol. The stem length of soybean cultivated on those soils showed a positive correlation with the number of earthworms (r=0.54, p<0.05) and oribatid mites (r=0.62, p<0.05), while the stem weight of soybean with the number of macrofauna organisms (r=0.61, p<0.05) and earthworms (r =0.8, p<0.01), respectively. The correlations between the number of soil invertebrates and yield or quality of soybean were not significant in this survey.

作成者 Yoshinari ENAMI Hiroyoshi SHIRAISHI Yoshio NAKAMURA
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 85
終了ページ 89
言語 eng