Impact of nigerian agricultural policies on crop production and the environment
SummaryNigerian efforts in agricultural development over the past three decades have failed to improve the country's economy. A review of the sector depicts a gloomy picture. Performance is reflected in environmental degradation, mounting food deficits, and decline in both gross domestic product and export earnings, while retail food prices and import bills have been increasing. These effects have further impoverished the smallholder farmers, locking them into a poverty web. The Government must seek to establish agricultural strategies which promote political stability, self reliance, public participation, sustained production and environmental security.
Policy Benchmarking and Tracking the Agricultural Policy Environment in Nigeria
IFPRI-ABUJA International Food Policy Research Institute c/o International Center for Soil Fertility and Agriculture Development No.6/ Plot 1413 Ogbagi Street Off Oro-Ago Crescent Cadastral Zone 11, Garki, Abuja Nigeria E-mail: ifpri-nigeria@cgiar.org www.ifpri.org IFPRI HEADQUARTERS International Food Policy Research Institute 2033 K Street NW Washington, DC 20006-1002 USA Tel. +1-202-862-5600 Fax +1-202-467-4439 E-mail ifpri@cgiar.org www.ifpri.org Nigeria Strategy Support Program (NSSP)
Suppressed Light Emission of the Reaction Zone in Detonation
THE detonation of high explosives in water can be photographed with an open camera and a flash light as the explosive gases do not emit light. The method has been used1 to investigate the spread of shock waves and explosive gases, and to investigate the initiation by shock waves2. We have found that it can be used also in certain gases such as butane and propane. The method is not suitable, on the other hand, for explosives with two levels of detonation velocity in the case of low velocity. A great part of the reaction then occurs after the reaction zone has passed and the expanding explosive gases are very luminous even in water.