Effect of SHAKTI and KUBOTA power tillers on physical properties of soil and rice yield under Sawah production system in Nigeria

The use of the power tillers （walking tractors） are increasingly popular in Nigeria among farmers adopting Sawah rice production technology. This study compares the effects of two types of power tillers on physical properties of soil and rice yield. because soil properties determine to a large extents rice yield. Data on soil properties and rice yield were collected and subjected to t-test statistics. The results show that, significant differences exit for all the physical properties of soils rice yields from fields where the two power tiller were used with yields from rice field where SHAKTI was used was higher than KUBOTA. It is important that farmers using these models of power tillers for rice production should not only focus on the purchase cost of these power tillers but their overall efficiency in order to achieve the desired high level of yield.     

投资尼日利亚种子产业的可行性分析与建议

阐述了尼日利亚种子产业的发展现状和存在问题,分析了我国企业在尼日利亚投资种子产业的可能性和可行性,提出了投资尼国种子产业的决策选择与建议：扩大引进新品种,强化新品种研发能力,促进尼国种子更新换代;引进种子包装加工设备,实施种子标牌销售,打造自己的种业品牌;按照种子生产规模化、专业化的原则,积极加强种子生产基地建设;借鉴国内种子企业成功的营销模式,建立遍布尼国城乡的种子销售网络;在经营过程中做到互利合作、有取有予。     

加纳、多哥和贝宁共和国山药上首次报道黄瓜花叶病毒

山药（Dioscoreaspp．薯蓣科）是西非一些国家最重要的粮食作物,主要分布在西非包括尼日利亚、加纳、科特迪瓦、贝宁共和国和多哥在内的森林与热带稀树草原区域。这一地区山药种植面积占全球山药种植面积459万公顷的90％以上。2005年对加纳、多哥和贝宁共和国的山药病毒进行过一次调查。从显示花叶病．缺绿病和无症状生长迟缓植株的5个山药品种1405个样本,     

奇瑞重工举办中非现代农业发展高峰论坛

2012年7月21日,奇瑞重工"走进非洲"行动启动仪式暨中非现代农业发展高峰论坛在安徽省芜湖市举办,来自津巴布韦、尼日利亚、埃塞俄比亚等29个非洲国家的外交官员、政府官员和企业代表出席了论坛。奇瑞重工王红梅告诉笔者,奇瑞重工开展"走进非洲"战     

Sawah Rice Eco-technology and Actualization of Green Revolution in West Africa： Experience from Nigeria and Ghana

The development and dissemination of sawah rice eco-technology in Nigeria and Ghana as prerequisites for the actualization of green revolution in West Africa were described. It showed that the neglect of the eco-technology and the overemphasis of the biotechnology have rendered the ineffective transferability of the green revolution process from Asia to Africa. The sawah eco-technology increases yield up to 5 t/hm² through bunding and the use of inlet and outlet connecting irrigation and drainage, which enhances effective water control and management, improves the efficiency of fertilizer, improves nitrogen fixation by soil microbes and algae, increases the use of wetlands, improves soil organic matter accumulation, suppresses weed growth, and enhances immune mechanism of rice through nutrient supply. The current experience has therefore established that the technology overcomes the constraints that have limited the realization of green revolution in West Africa.     

科学家发现可利用线虫控制作物害虫

<正>来自尼日利亚的国际热带农业研究所(IITA)和比利能够作为生物控制器,能有效抵抗撒哈拉以南非洲地区的作物害虫。     

The Impact of Climate Change on Sustainable Food Supply and Environmental Safety in Ekiti State,Nigeria

The resultant climate change on sustainable food supply has greatly affected agricultural production by the level of great volumes of gasses emitted into the atmosphere by human activities. The human factors that emit large amount of green house gases include industrialization, burning of fossil fuel and gas flaring. Increase in air temperature and consequent increase in the rates of evaporation also affect the level of food supply. Data for this study were collected from primary and secondary sources. Primary source were collected through field investigation and structured questionnaire. A total of 450 questionnaires were administered. Results revealed that varieties of crops ranging from tree crops to cereals were cultivated within the study area. The effect of climate change on food supply has resulted into change in crop yields, change in rainfall pattern, soil loss and has greatly affected planting period and harvesting. The study therefore recommended awareness campaigns on the causes and consequences of global climate change on food production, environmental education and afforestation campaign programmes on sustainable food supply and environmental safety must be intensified.     

Analysis of Soil Water Dynamics in a Tropical Rain Forest Soil （Arinic lixisol）, Abeokuta,Nigeria

Soil water dynamics in the dominant lwo soil series （Arinic lixisol） were evaluated at the Federal University of Agriculture, Alabata, Abeokuta, Nigeria. Field capacity, infiltration and water retention characteristics were evaluated in situ for a period of 161 d in the dry season for two root zone depths. Results show that the Iwo soil series has a field capacity ranging from 2.6%-5.5% at 0-45 cm and 45-90 cm root zone depths, respectively. The soil is quick draining with high infiltration rate and very poor water retention capacity confirming that the soil will require a short irrigation interval of about 2-3 d since available water for plant growth in predominantly sandy soils ranges between 2%-8%. Based on the foregoing, sprinkler irrigation is best suited for the lwo soil series, it should, however, be noted that the water application rate must be less than the infiltration rate of the soil in order to prevent surface ponding and runoff. A multivariate model relating soil moisture content with soil moisture tension and soil temperature calibrated within the study had very low model accuracy of 56% and 45% for the two root zone depths, respectively, implying the need for further studies.     

尼日利亚山羊暴发疑似传染性胸膜肺炎的防治报告

本文报告了中尼农业南南合作项目实施地--尼日利亚Kano州Asada农场引进85只当地山羊,由于引进羊只未行检疫隔离、营养水平低和管理不当而导致疑似传染性胸膜肺炎的暴发.自2006年2月20日至4月20日,62天共发病58只,发病率68.2%,死亡18只,病死率31%.经提高营养水平、加强饲养管理和正确的治疗措施后,除2只病情很严重的山羊死亡外,其它的病羊全部康复.