Soil Fertility Potential for Rice Production in West African Lowlands

Improving West African rice production with agricultural water management strategies

The populations of West African countries continue to grow at rates exceeding three per cent per year. The international food price spike of 2008 focused attention on the risks to national security and livelihoods associated with importing significant quantities of food; and government and donor investment strategies now focus on ensuring national food security. Since rice is a key staple crop ...

Soil Fertility and Bean Production

Beans require adequate amounts of all essential plant nutrients for optimum growth but only a few nutrients are documented to be needed for southern Idaho soils. These nutrients include phosphorus (P), nitrogen (N), zinc (Zn), potassium (K), sulfur (S), and to a much less extent B, Cu, Mn and Fe. University of Idaho Agricultural Experiment Station research as well as research from throughout th...

Soil fertility in flooded and non-flooded irrigated rice systems

Soil Fertility Map for Food Legumes Production Areas in China

Given the limited resources of fossil energy, and the environmental risks of excess fertilizer on crops, it is time to reappraise the potential role of food legume biological nitrogen fixation (BNF) as sources of nitrogen for cropping systems in China. 150 soil samples across 17 provinces and 2 municipalities of China were collected and analyzed. A distribution map of the soil fertilities and t...

an appropriate model for exchange rate predictability in iran: comparing potential forecastability

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...