Agronomic and economic evaluation of Tilemsi phosphate rock in different agroecological zones of Mali

被引：24

作者：

Bationo, A

Ayuk, E

Ballo, D

Kone, M

机构：

[1] IFDC, ICRISAT, Niamey

[2] ICRAF, ICRISAT, Bamako

[3] SRCFJ, N'Tarla

[4] IER, Sikasso

来源：

NUTRIENT CYCLING IN AGROECOSYSTEMS | 1997年 / 48卷 / 03期

关键词：

agronomic and economic evaluation; cropping systems; indigenous phosphate rock;

D O I：

10.1023/A:1009784812549

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Phosphorus deficiency is known as one of the major constraints to crop production in West Africa. Farmer-managed trials were conducted in three agroecological zones of Mall to evaluate the profitability of Tilemsi phosphate rock (TPR) in different crop-rotation systems in comparison with conventional water-soluble fertilizers. Marginal analyses were used to compare treatments tested. Results show that crop yields using TPR are comparable to those of recommended cotton-or cereal-complex imported fertilizers. The economic evaluation also clearly indicated that direct application of TPR is relatively profitable in comparison with recommended imported fertilizers and that good management enhances the profitability of fertilizers in general.

引用

页码：179 / 189

页数：11

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