<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Biomass in crop-livestock systems in the context of the livestock revolution"^^ . "Mixed crop-livestock systems are the dominant source of livelihood supporting more\r\nthan 80% of people living in the developing world and producing 50% of world\r\ncereals, around 34% of the global beef production and about 30% of global milk\r\nproduction. However, mixed systems are coming under increasing pressure with their\r\nhuman population predicted to increase from 1,099 million in 2000 to 1,670 million\r\npeople in 2030 and their cattle population to increase from 230 million to\r\n317 million from 2000 to 2030. Coupled with this increase in human and livestock\r\npopulations, cereal yields have been stagnating in sub-Saharan Africa (SSA) for the\r\nlast 40 years (in contrast to growth rates of 1.5-2% per year for the rest of the\r\ndeveloping world), with most increase in overall cereal production arising from\r\nexpansion of arable land. Such trends cannot be maintained as land suitable for\r\ncropping is scarce, and additional cropland might also be more marginal and subject\r\nto greater climatic risks. There is increasing pressure on biomass in mixed systems and\r\nthere are strong needs to find ways out of this ‘‘biomass trap’’ through increasing\r\noverall biomass yield and fodder quality and through increasing the efficiency of\r\nlivestock production. Biomass from crop residues (CR) is used as a feed resource and\r\nas mulch to improve crop yields. Biomass is becoming scarcer and competition for CR\r\nis becoming more severe. This is reflected in changes of CR use from grazing to\r\nharvesting and storage, longer distances across which CR are transported and\r\ntransacted and decreasing CR to grain ratios. The predicted increase in demand for\r\nlivestock products, the so-called livestock revolution, will further fuel feed demand and\r\nincrease the usage of CR for livestock feeding. Use of CR for mulch and conservation\r\nagriculture demands about 2 to 3 tons of CR per hectare which is often equal to their\r\ntotal yield under rain-fed conditions in the semi-arid tropics. Multidimensional crop\r\nimprovement can mitigate competition for biomass by increasing CR quantity and by\r\nimproving fodder quality. Increased CR yield will facilitate partitioning of CR between\r\nlivestock and soil improvement and improved CR fodder quality will support\r\nintensification of livestock production where more animal sourced foods (ASF) can be\r\nproduced with less feed. It is important to realize that feed biomass requirement is very\r\ncontext specific and decreases with increasing per unit animal productivity\r\n"^^ . "2013" . . "24" . . "John Libbey Eurotext"^^ . . . "Secheresse"^^ . . . "11477806" . . . . . . . . . . . . . . . . . . . "D"^^ . "Valbuena"^^ . "D Valbuena"^^ . . "A"^^ . "Duncan"^^ . "A Duncan"^^ . . "S"^^ . "Homann-Kee Tui"^^ . "S Homann-Kee Tui"^^ . . "M"^^ . "Herrero"^^ . "M Herrero"^^ . . "M"^^ . "Blummel"^^ . "M Blummel"^^ . . . . . . "Biomass in crop-livestock systems in the context of the livestock revolution (PDF)"^^ . . . . . "Secheresse_2013_24_330-339.pdf"^^ . . . "Biomass in crop-livestock systems in the context of the livestock revolution (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Biomass in crop-livestock systems in the context of the livestock revolution (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Biomass in crop-livestock systems in the context of the livestock revolution (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Biomass in crop-livestock systems in the context of the livestock revolution (Other)"^^ . . . . . . "small.jpg"^^ . . . "Biomass in crop-livestock systems in the context of the livestock revolution (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #7317 \n\nBiomass in crop-livestock systems in the context of the livestock revolution\n\n" . "text/html" . . . "Agriculture-Farming, Production, Technology, Economics"@en . .