Improving fertilizer recommendations for farmers is essential to increase food security in
smallholder landscapes. Currently, blanket recommendations are provided across agro …

Low fertilizer application rates for several decades have depleted soil nutrients in Sub-
Saharan Africa (SSA) and contributed to relatively stagnant maize (Zea mays L.) yields. As …

Use of mineral fertilizers is essential to enhance crop productivity in smallholder farming
systems of Sub-Saharan Africa, but various studies have reported 'non-responsiveness' …

Improved understanding of soil fertility factors limiting crop productivity is important to
develop appropriate soil and nutrient management recommendations in sub-Saharan Africa …

Large variability in crop responses to macronutrient application at various spatial scales
present challenges for developing effective fertilizer recommendations for crop production in …

Traditionally, crop production in sub-Saharan Africa (SSA) depends primarily on mining soil
nutrients. Integrated Soil Fertility Management (ISFM) is an approach for intensifying …

Data from a survey of 1400 farmers, along with five years of data from trials assessing maize
response to fertilizer at more than 70 locations in Kenya, were used to examine the current …

In Kenya, 70 long-term fertilizer trials were established in which the response of the major
annual crops to nitrogen, phosphorus and farmyard manure was tested. As the sites all …

Strategic targeting of scarce nutrient resources by smallholder farmers on different field
types has remained poor partly due to knowledge limitations, resulting in inefficient use of …

Different fields within a farm have been observed to have different soil fertility status and this
may affect the response of a maize crop to applied N, P, and K fertiliser. A limiting nutrient …