Meeting human needs within the ecological limits of our planet calls for continuous reflection
on, and redesigning of, agricultural technologies and practices. Such technologies include …

Summary On average,< 5 kg ha− 1 of mineral fertilizer nutrients are applied to food crops in
sub‐Saharan Africa, the lowest rate in the world. Population pressures have caused …

Can agriculture provide for the food needs of a world population projected to exceed 7.5
billion by the year 2020? Concern is growing that it may not. There are indications that the …

Mineral nutrition of crops along with N, P, and K fertilization decisions in cropping systems
have long been based on crop yield responses to individual elements for determining the …

Low inherent soil fertility in the highly weathered and leached soils largely accounts for low
and unsustained crop yields in most African countries. But in particular, the major nutrients …

Abstract Sub-Sahara Africa can overcome the soil fertility depletion that has resulted from
decades of nutrient mining by small-scale farmers and threatens the region's food security …

One definition of food security is having sufficient, safe, and nutritious food to meet dietary
needs. This paper highlights the role of plant mineral nutrition in food production, delivering …

This paper focuses on the supply of N for plant growth in terms of (i) the capacity of organic
residues (plant residues and animal manures) to supply substantial quantities of N for crop …

Abstract In sub-Saharan Africa (SSA), traditional farming methods have led to severe
nutrient depletion, low crop yields, and poverty, leaving many farm families disappointed …

The increasing recognition of soil fertility depletion as the main biophysical factor limiting
crop production in many African smallholder farms has raised interest in using data from …