ALLEVIATING SOIL FERTILITY CONSTRAINTS TO FOOD-PRODUCTION IN WEST AFRICA - EFFICIENCY OF NITROGEN FERTILIZERS APPLIED TO FOOD CROPS

被引：24

作者：

CHRISTIANSON, CB

VLEK, PLG

机构：

[1] Agro-Economic Division, International Fertilizer Development Center (IFDC), Muscle Shoals, 35662, AL

来源：

FERTILIZER RESEARCH | 1991年 / 29卷 / 01期

关键词：

NITROGEN; UREA; CALCIUM AMMONIUM NITRATE; CROPPING DENSITY; N USE EFFICIENCY; SLOW RELEASE; UREASE INHIBITORS; WEST AFRICA;

D O I：

10.1007/BF01048986

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

An overview is provided of the N efficiency research conducted within the West African Fertilizer Management and Evaluation Network (WAFMEN). Factors such as N rate, mode of N fertilizer application and choice of N sources for different agroecological zones of West Africa are discussed in relation to crop yield response. The interactive effects of cropping density and rainfall on N efficiency and yield are examined with particular emphasis on production of millet in Niger. The potential role of new, slow-release fertilizers as well as urea amended with urease inhibitors is mentioned in relation to present and future fertilizer N requirements in West Africa.

引用

页码：21 / 33

页数：13

共 21 条

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