A diagnostic method for assessing regional variations in crop yield

被引：81

作者：

Dore, T ^{[1
]}

Sebillotte, M ^{[1
]}

Meynard, JM ^{[1
]}

机构：

[1] INST NATL AGRON PARIS GRIGNON, INRA, AGRON LAB, F-78850 THIVERVAL GRIGNON, FRANCE

来源：

AGRICULTURAL SYSTEMS | 1997年 / 54卷 / 02期

关键词：

D O I：

10.1016/S0308-521X(96)00084-4

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The diagnosis of agronomic problems in cropping systems is often limited to surveys among farmers, in which they ave asked about the problems they encounter. This paper describes an alternative method of diagnosis to understand the variations in crop yield on a regional scale. It is based on multi-annual on-farm surveys, where data are collected on the cropping system, environment and crop-yield build-up. The different steps of the method: choice Of study area and of farmers' fields; choice of methods; design of further experiments; and diagnosis itself, plus the way they are linked to each other, are developed and discussed. (C) 1997 Published by Elsevier Science Ltd.

引用

页码：169 / 188

页数：20

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