ALTERATIONS IN THE ORGANIC-COMPONENTS OF ORGANO-MINERAL COMPLEXES IN LONG-TERM FIELD EXPERIMENTS ON LOESS AND RELATED SOIL SUBSTRATES

被引:0
|
作者
LEINWEBER, P
REUTER, G
KORSCHENS, M
GARZ, J
机构
[1] FORSCHUNGSZENTRUM BODENFRUCHTBARKEIT MUNCHEBERG,BEREICH BAD LAUCHSTADT,O-4204 BAD LAUCHSTADT,GERMANY
[2] MARTIN LUTHER UNIV,WISSENSCH BEREICH AGROCHEM DUNGUNG,SEKT PFLANZENPROD,O-4020 HALLE,GERMANY
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中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Organo-mineral particle-size fractions were isolated from differently fertilized variants of long-term field experiments on loess and related soil substrates and examined for C and N contents. The C and N maxima were found in the coarse clay and fine silt fractions. Significant differences in the fractions' C and N contents occurred between the variants with and without organic manuring. A relative redistribution of the C and N proportions of the fractions was also observed. The differences in the mean crop yields were weakly correlatedto the differences in the C contents of the fractions.
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页码:85 / 93
页数:9
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