Cotton yield in central field experiments in the main research sites of the WASCAL Core Research Program, 2013 Function of crop rotation and residue mangement, tillage and N fertilization. Data is captured on field plot level.

Fruit set of conventional upland cotton (Gossypium hirsutum) was highest after out cross pollination than after spontaneous selfing (pollinator exclusion).

Fibremass (lint mass) of conventional upland cotton (Gossypium hirsutum) was significantly higher after outcross pollination than after selfing. Hence, outcross pollination (e.g.transfer of pollen from flowers of one individual to another individual of the same species by bees) enhances fruit quality and hence the income of the smallholders.

The number of damaged (= non intact, not fully developed or aborted seeds, that are not viable) was significantly increased after spontaneous self-pollination than after cross pollination. This is a clear sign of inbreeding depression in the lack of pollinators and economically relevant, since the seeds are used for the next year sowing season. In a nutshell: self-pollination decreases seed quality of cotton.

Cotton phenology time series (primary/raw) from central field experiment plots in the main research sites of the WASCAL Core Research Program, 2013. Function of crop rotation and residue mangement, tillage and N fertilization The data is captured at field plot level.

Total abundance of bee species in savannas of low (Nazinga area), medium (Bontioli area) and high (Dano area) disturbance intensity in the south of Burkina Faso. Data were collected with pan traps for a period of 21 months in 2014 and 2015 covering dry and rainy seasons of both years. Bees were sampled at 12 savanna sites and 11 nearby cotton fields and 11 sesame fields of ca. 1ha each. Bee sampling in the crop fields was carried out only during the rainy seasons from June to September (cotton: 2014 and 2015; sesame: 2015) when crops were in bloom.

Growth of maize, sorghum, and cotton on researcher-managed fields.

Productivity and nutrient uptake of maize, sorghum, and cotton on farmer- and researcher-managed fields.

This dataset is the sixth of a series of datasets addressing farmers' adaptation to climate change in West-Africa, specifically in Dassari, Benin. This data was obtained by interviews with smallholder farmers from various communities in the Dassari basin. It provides information on the household level on farming history, fertilizer use, crop rotation practices and the farmers' motivation behind changing their practice. Soil sample data provides information on N,P,K, C content with the intention of evaluating residual effect of fertilizer in soil. Data includes questionaire and results, and soil sample data all corresponding to multi-year study of fields. The coordinates of the soil sample plots can be obtained upon request to the author due to data privacy protection demands.

Table with time series of cotton plant heights from central field experiment plots in the main research sites of the WASCAL Core Research Program 2013. Function of crop rotation and residue mangement, tillage and N fertilization. The data is captured at field plot level.