Abstract Agricultural practices in northern Sudan have been changing rapidly but remain little documented. In this paper we aim to investigate changes crops grown living memory and their uses through interviews with Nubian farmers on the island of Ernetta. By exploring cultivation crop processing practices, together associated material culture foodstuffs, also seek explore how agricultural food...

This paper shows how agricultural productivity shocks can generate large industrial output fluctuations in poor countries, using a static general-equilibrium model with Stone-Geary preferences. A negative shock to agricultural productivity increases food prices, which affects manufacturing output through two channels: (1) meeting subsistence requirements in the face of rising food prices causes...

Microbial diversity can be used to assess the impact of agricultural practices on the long-term sustainability of cropping systems. The aim of this study was to investigate changes in soil bacterial diversity as a result of the impact of different soil tillage and crop rotation systems in an oxisol of southern Brazil. Bacterial diversity was examined in the 010 cm layer in two field experiments...

Over 4,000 plant species parasitize other plants to obtain water and nutrients. A few of these species have become weedy posing a tremendous threat to agriculture. The most damaging to annual crops are the root parasitic weeds, particularly broomrapes (Orobanche and Phelipanche spp.) and witchweeds (Striga spp.), which are extended over large agricultural areas in Europe, Africa and Asia. A pro...

Agricultural productivity, and its variation in space and time, plays a fundamental role in many theories of human social evolution. However, we often lack systematic information about the productivity of past agricultural systems on a scale large enough to test these th...