A farm survey was conducted within a 100 km 2 sampling block to collect data on the spatial
variation in unfertilized maize biovolume and grain yields in relation to soil organic carbon …

In many farning landscapes across Sub-Saharan Africa (SSA), soil fertility has been on the
decline with significant implications on crop productivity. However, even with such a decline …

The processes of nutrient depletion and soil degradation that limit productivity of smallholder
African farms are spatially heterogeneous. Causes of variability in soil fertility management …

To guide soil fertility investment programmes in sub-Saharan Africa, better understanding is
needed of the relative importance of soil and crop management factors in determining …

This study aimed to evaluate spatial variability of selected soil parameters as a smart
agricultural technology guide to precise fertilizer application. A farm designated as Field 3 …

Spatially explicit information on soil variability is relevant for agronomic decisions; however,
such information is limited in the northern Guinea savanna (NGS) agroecological zone of …

The need to promote fertiliser use by African smallholder farmers to counteract the current
decline in per capita food production is widely recognised. But soil heterogeneity results in …

Abstract Smallholder farms in Central Highlands of Kenya exhibit a high degree of
heterogeneity, determined by a complex set of socio-economic and biophysical factors. The …

A study was conducted to determine farmers' perceptions of soil quality and soil
management practices that influenced soil fertility within farmers' fields in Chuka and …

Heterogeneity in soil fertility in these smallholder systems is caused by both inherent soil‐
landscape and human‐induced variability across farms differing in resources and practices …