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مقالات صحفية, 2005
This paper presents a historical overview of plant breeding research, variety release and seed supply of staple food grains in Zimbabwe, and assesses the impacts of the new varieties on yields using national aggregate yield...
متاح باللغات: English
مقالات صحفية, 2005
The maize green revolution, which increased maize yields through the use of improved varieties and fertilizer, has stalled since the mid-eighties in Kenya. This paper examines whether the stagnation of yields continued in the 1990s...
متاح باللغات: English
مقالات صحفية, 2005
This paper analysed the growth performance of non-rice crop sectors by estimating total factor productivity (TFP) growth for the selected coarse cereals viz., maize, sorghum and pearl millet in India. The analysis indicates that the...
متاح باللغات: English
مقالات صحفية, 2005
It is widely believed that a Green Revolution similar to the one achieved in Asia is impossible in Sub-Saharan Africa. Although grain yields have been stagnant in this region, there are some signs of the...
متاح باللغات: English
مقالات صحفية, 2005
While population still continues to grow rapidly in Sub-Sahara Africa, the expansion of cultivation area has slowed down considerably due to the increasing scarcity of uncultivated land. Since the yield of food grain per unit...
متاح باللغات: English
ESA Working Paper 04-22
ورقة عمل, 2004
Countries in the ACP region will face significant challenges in the years to come as they try to step up economic growth, deal with increasingly integrated world markets and meet the Millennium Development Goals (MDGs),...
متاح باللغات: English
ESA Working Paper 04-21
ورقة عمل, 2004
This paper presents the construction of a spatially explicit, nationally disaggregated measure of poverty over time in Costa Rica. The paper first describes the two possible methods considered for the construction of a poverty map:...
متاح باللغات: English
ESA Working Paper 04-20
ورقة عمل, 2004
We review claims about the potential for carbon markets that link both payments for carbon services and poverty levels to ongoing rates of tropical deforestation. We then examine these effects empirically for Costa Rica during...
متاح باللغات: English
ESA Working Paper 04-19
ورقة عمل, 2004
We summarize existing theoretical claims linking poverty to rates of deforestation and then examine this linkage empirically for Costa Rica during the 20th century using an econometric approach that addresses the irreversibilities in deforestation. Our...
متاح باللغات: English
ESA Working Paper 04-18
ورقة عمل, 2004
The Food Security and Agricultural Projects Analysis Unit (ESAF) of FAO has undertaken a number of pilot studies to develop a methodology for understanding why certain groups of people are vulnerable to becoming food insecure....
متاح باللغات: English