Soil Fertility in Sweetpotato-based Cropping Systems in the Highlands of Papua New Guinea


Book Description

High population growth is a problem in most developing countries, and projections for many countries are that the increased demand for food will outstrip the capacity of the land to produce that food. Papua New Guinea (PNG) has high population growth, however the area under agricultural production has remained stable, and land use has intensified. There is a trend towards more continuous cropping systems that is linked to high population densities--as the population increases, the demand for food and cash crops increases. Thus, the need to identify promising management practices to expand both food and cash crops, while sustaining soil fertility, is becoming increasingly important for PNG. This report summarises the results from a pilot study on soil fertility management, and reviews sweetpotato-based cropping systems in the highlands of PNG. It also describes the lessons learnt from survey methodologies used to assess the socioeconomic and biophysical constraints to sweetpotato production in this area. Case studies from similar surveys done in Nigeria and northern New South Wales, Australia, are included as examples.




MAINSTREAMING ECOSYSTEM SERVICES AND BIODIVERSITY INTO AGRICULTURAL PRODUCTION AND MANAGEMENT IN THE PACIFIC ISLANDS


Book Description

This guidance document is designed to assist Pacific Island countries and territories in finding synergies between two important realms of policies and international commitments: sustainable management of chemicals and biodiversity conservation and use. It details the linkages between ecosystem services and biodiversity in agriculture, specifically in relation to soil health, ecological management of pests, weeds and invasive alien species, agroforestry, organic farming systems and ecotourism. It analyses current policies and best practices across the subregion and highlights key policy entry points for mainstreaming approaches to agriculture that reduce the use of agrochemicals. Produced under the EU-funded project “Capacity Building Related to Multilateral Environmental Agreements (MEAs) in Africa, Caribbean and Pacific (ACP) countries – Phase 2”, the document will guide countries in revising their strategies or policies related to chemical and biodiversity management. In particular, it will assist countries in revising or implementing their National Biodiversity Strategies and Action Plans (NBSAPs) to help them meet a number of Aichi Biodiversity Targets relevant to the agriculture sector.




Food and Agriculture in Papua New Guinea


Book Description

Agriculture dominates the rural economy of Papua New Guinea (PNG). More than five million rural dwellers (80% of the population) earn a living from subsistence agriculture and selling crops in domestic and international markets. Many aspects of agriculture in PNG are described in this data-rich book. Topics include agricultural environments in which crops are grown; production of food crops, cash crops and animals; land use; soils; demography; migration; the macro-economic environment; gender issues; governance of agricultural institutions; and transport. The history of agriculture over the 50 000 years that PNG has been occupied by humans is summarised. Much of the information presented is not readily available within PNG. The book contains results of many new analyses, including a food budget for the entire nation. The text is supported by 165 tables and 215 maps and figures.







A Place Against Time


Book Description

A Place Against Time is an ethnographically focused environmental study of Montane, New Guinea, where people were among the world's first to cultivate crops some ten millennia ago, and where today an enduring agricultural condition continues. It arranges its account of climate, vegetation topography and geology according to their relationship with the soils of the region occupied by Wola speakers in the Southern Highlands Province of Papua New Guinea, in the Western Pacific. This book breaks new intellectual ground as an ethno-environmental investigation with a soils perspective, ethno-pedology being a little researched topic to date.




Growing Healthy Sweetpotato


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Annual Operational Plan


Book Description




Sustainable Development: Asia-Pacific Perspectives


Book Description

The Asia-Pacific region has been experiencing rapid development in the past 30 years, and issues relating to sustainable development will become increasingly important in the coming decades. This comprehensive overview presents sustainable development from the perspectives of Asia and the Pacific, with contributions from more than 70 leading international experts. The first part focuses on the theories and practices of sustainable development, including national and regional perspectives, as well as international policies and law concerning climate change. The second part highlights the challenges and opportunities of sustainable development and poverty reduction amid the changing ecological, social, cultural, economic, and political environment in this region. These include issues such as the importance of science for sustainable development and related areas, including sustainable energy, stratospheric ozone depletion, climate change, land-use change, biodiversity, and disaster risk reduction. The volume is an invaluable reference for all researchers and policy makers with an interest in sustainable development.




Tropical Root and Tuber Crops, 2nd Edition


Book Description

Root and tuber crops are important to agriculture, food security and income for 2.2 billion people in developing countries. These species produce large quantities of dietary energy and have stable yields under difficult environmental conditions. This second edition of Tropical Root and Tuber Crops is an authoritative treatment of four important root and tuber crops: cassava. sweet potato, yams, and aroids.




The Purari — tropical environment of a high rainfall river basin


Book Description

One of the major river systems of our country, the Purari River, finds its outlet to the sea in the Gulf of Papua on the southern coast of Papua New Guinea. All highlands provinces contribute to this mighty river: the Erave of the Southern Highlands Province joins with the Kaugel and Wahgi Rivers (Western High lands), the Tua River (Simbu), and Asaro and Aure Rivers of the Eastern High lands Province to make the Purari the third largest river in P. N. G. Unlike its rivals, the Fly and the Sepik, the distance between its escape from the mountains and its entrance to the sea is short. After winding its way mostly through deep gorges flanked by high mountains, the river leaves the foothills of the southern slopes of the central cordillera barely eighty kilometers from the sea. The energy potential of such a river is enormous. Could the waters be utilised in any way to the advantage of the nation? Twelve years ago the Electricity Com mission of Papua New Guinea proposed an answer to this question: the building of a dam across the river in the Wabo area of the Gulf Province. The generation of vast quantities of hydro-electric power could be fed into a national distribu tion grid and heavy industries could be established in the Gulf Province and other suitable localities to benefit from this power.