Farming with rocks and minerals: challenges and opportunities

Anais da Academia Brasileira de Ciências

Peter Van Straaten¹ 

[1] ,University of Guelph Department of Land Resource Science Guelph ON ,Canada

关键词: soil nutrient replenishment;    rock fertilizer;    phosphate rock;    reposição de nutrientes do solo;    rochagem;    rocha fosfática;   

DOI  :  10.1590/S0001-37652006000400009

来源: SciELO

【 摘 要 】

In many parts of the world food security is at risk. One of the biophysical root causes of falling per-capita food production is the declining quality and quantity of soils. To reverse this trend and increase soil fertility soil and plant nutrients have to be replenished. This review provides a literature survey of experiences of using multi-nutrient rock fertilizers for soil fertility enhancement from temperate and tropical environments. Advantages and limitations of the application of rock fertilizers are discussed. Examples are provided from two successful nutrient replenishment projects in Africa where locally available rock fertilizers are used on highly leached acid soils. The potential of combining organic materials alongside rock fertilizers in soil fertility replenishment strategies is stressed.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License