FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W201768568> ?p ?o ?g. }

• W201768568 endingPage "153" @default.
• W201768568 startingPage "91" @default.
• W201768568 abstract "Fertilizers have been largely responsible for the massive increases in world food production in the past half century that permitted accelerated global population growth to current unprecedented levels. Fertilizer use not only impacts crop yields but also affects animal production. While nitrogen (N) has been the main driver of such changes, phosphorus (P) also has a major role. Like N, the use of P fertilizers can have implications beyond the farmers’ fields, if excessive amounts are applied. The past four decades have witnessed overuse of P fertilizers as well as animal manures in the intensive agricultures of some European countries and North America. Yet ironically in many areas of the world, notably Africa, agricultural output is largely constrained by low soil P in combination with little or no P fertilizer application. Rock phosphate is the global source of the raw material for P fertilizer. However, resources are finite, and therefore efficient and wise use is of paramount importance. The vast West Asia and North Africa (WANA) region is one where agricultural output is beset with major environmental constraints. Yet fertilizer use in the region is still in the incipient to early development stage, ironically in view of the fact that major deposits of exploitable rock phosphate are found in the region, mainly in Morocco and Tunisia. With the predominantly calcareous soils of the region being inherently low in available P, the main focus in the past few decades has been on promoting P use and its efficient management in rainfed and irrigated agriculture. In the 1960s and 1970s, virtually no fertilizer was used in the region, with rapid increases in N and to a lesser extent P since then. The sharp transition from low-input traditional agriculture to conventional modern agriculture has particular implications for efficient P fertilizer use from the economic and environmental standpoints. This review seeks to present a broad overview of P in countries of the WANA region, which varies considerably with respect to economic development and the level of agricultural research, education and extension. It presents the background global considerations with respect to P supplies and use, as well the agricultural context for the region, including climate and cropping systems; it draws heavily on research on soils and soil-P chemistry from Spain, which though technically excluded from WANA, has much in common with the Mediterranean region, and highlights P research from Pakistan at the eastern fringes of WANA. It highlights the discrepancy in P use between developed and developing countries such as those of WANA. The review to some extent builds on extensive research carried out in Syria by the International Center for Agricultural Research in the Dry Areas (ICARDA), with secondary emphasis on countries of the region, many of which collaborate closely with ICARDA. The review covers the past three decades, highlighting progress in field trials on fertilizer use with the region's main crops in relation to rainfall, cropping systems, soil test levels, and efforts to identify P-efficient genotypes and enhance soil P fertility with mycorrhizae. Despite the many isolated, uncoordinated, and often-overlapping, and indeed conflicting, research efforts that have taken place in the region, we have attempted to show a gradual progression in knowledge of P in relation to soils and crops. Developments with regard to P, in the overall framework of agricultural research, have contributed to increased output in the WANA region. Much of the documented research has contributed to the global information on soils of arid and semi-arid regions. Despite achievements in applied research, poorly developed technology transfer systems and weak analytical facilities remain as stumbling blocks to the widespread dissemination of the accumulated knowledge on P use to farmers." @default.
• W201768568 created "2016-06-24" @default.
• W201768568 creator A5037362409 @default.
• W201768568 creator A5039173872 @default.
• W201768568 creator A5039300688 @default.
• W201768568 creator A5077752804 @default.
• W201768568 creator A5086577505 @default.
• W201768568 creator A5090045323 @default.
• W201768568 date "2012-01-01" @default.
• W201768568 modified "2023-10-06" @default.
• W201768568 title "Significance of Phosphorus for Agriculture and the Environment in the West Asia and North Africa Region" @default.
• W201768568 cites W1413948203 @default.
• W201768568 cites W1456156015 @default.
• W201768568 cites W1485736520 @default.
• W201768568 cites W1515928637 @default.
• W201768568 cites W1521341241 @default.
• W201768568 cites W1534627959 @default.
• W201768568 cites W1560923330 @default.
• W201768568 cites W1561640896 @default.
• W201768568 cites W1586488536 @default.
• W201768568 cites W1607864326 @default.
• W201768568 cites W179691706 @default.
• W201768568 cites W1821004860 @default.
• W201768568 cites W1965731035 @default.
• W201768568 cites W1969968201 @default.
• W201768568 cites W1970273679 @default.
• W201768568 cites W1970655875 @default.
• W201768568 cites W1971525296 @default.
• W201768568 cites W1976270050 @default.
• W201768568 cites W1976565733 @default.
• W201768568 cites W1979841118 @default.
• W201768568 cites W1980496938 @default.
• W201768568 cites W1982447560 @default.
• W201768568 cites W1982837210 @default.
• W201768568 cites W1984068419 @default.
• W201768568 cites W1986094776 @default.
• W201768568 cites W1986546853 @default.
• W201768568 cites W1986698327 @default.
• W201768568 cites W1986898855 @default.
• W201768568 cites W1987301090 @default.
• W201768568 cites W1987761611 @default.
• W201768568 cites W1987876066 @default.
• W201768568 cites W1988440119 @default.
• W201768568 cites W1992527590 @default.
• W201768568 cites W1995517088 @default.
• W201768568 cites W1996081247 @default.
• W201768568 cites W1996326498 @default.
• W201768568 cites W1999283283 @default.
• W201768568 cites W1999415747 @default.
• W201768568 cites W2000212148 @default.
• W201768568 cites W2000298068 @default.
• W201768568 cites W2001538347 @default.
• W201768568 cites W2002699597 @default.
• W201768568 cites W2003164698 @default.
• W201768568 cites W2003756997 @default.
• W201768568 cites W2004465924 @default.
• W201768568 cites W2007273998 @default.
• W201768568 cites W2007491685 @default.
• W201768568 cites W2009733469 @default.
• W201768568 cites W2009801588 @default.
• W201768568 cites W2009870638 @default.
• W201768568 cites W2011432496 @default.
• W201768568 cites W2014340167 @default.
• W201768568 cites W2016551660 @default.
• W201768568 cites W2017439300 @default.
• W201768568 cites W2017679507 @default.
• W201768568 cites W2018672425 @default.
• W201768568 cites W2018859571 @default.
• W201768568 cites W2018925735 @default.
• W201768568 cites W2019676582 @default.
• W201768568 cites W2019990444 @default.
• W201768568 cites W2020758679 @default.
• W201768568 cites W2020808603 @default.
• W201768568 cites W2020815260 @default.
• W201768568 cites W2020954768 @default.
• W201768568 cites W2022270403 @default.
• W201768568 cites W2025222307 @default.
• W201768568 cites W2027459850 @default.
• W201768568 cites W2027653220 @default.
• W201768568 cites W2027723804 @default.
• W201768568 cites W2028172807 @default.
• W201768568 cites W2028534555 @default.
• W201768568 cites W2028801979 @default.
• W201768568 cites W2030237170 @default.
• W201768568 cites W2030537907 @default.
• W201768568 cites W2032805255 @default.
• W201768568 cites W2033172984 @default.
• W201768568 cites W2036123899 @default.
• W201768568 cites W2037158887 @default.
• W201768568 cites W203769424 @default.
• W201768568 cites W2038629996 @default.
• W201768568 cites W2039702994 @default.
• W201768568 cites W2039721706 @default.
• W201768568 cites W2040713646 @default.
• W201768568 cites W2041076013 @default.
• W201768568 cites W2042792724 @default.
• W201768568 cites W2044675538 @default.
• W201768568 cites W2045000218 @default.

• next