Soil fertility and biodiversity in organic farming

被引：1709

作者：

Mäder, P

Fliessbach, A

Dubois, D

Gunst, L

Fried, P

Niggli, U

机构：

[1] Res Inst Organ Agr, CH-5070 Frick, Switzerland

[2] Swiss Fed Res Stn Agroecol & Agr, CH-8046 Zurich, Switzerland

来源：

SCIENCE | 2002年 / 296卷 / 5573期

关键词：

D O I：

10.1126/science.1071148

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

An understanding of agroecosystems is key to determining effective farming systems. Here we report results from a 21-year study of agronomic and ecological performance of biodynamic, bioorganic, and conventional farming systems in Central Europe. We found crop yields to be 20% Lower in the organic systems, although input of fertilizer and energy was reduced by 34 to 53% and pesticide input by 97%. Enhanced soil fertility and higher biodiversity found in organic plots may render these systems less dependent on external inputs.

引用

页码：1694 / 1697

页数：4

共 24 条

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ALFOLDI T, UNPUB

[2] Legume-based cropping systems have reduced carbon and nitrogen losses [J].