Tropical Crop-livestock Systems in Conservation Agriculture: The Brazilian Experience
Food & Agriculture Org., 2007 - 92 pages
Conservation agriculture in the Brazilian tropics; Background; The Cerrado biome; The Amazon biome; History of zero tillage in the tropical zones of Brazil; Conservation agriculture; How does conservation agriculture work?; Integrated crop-livestock systems with zero tillage; Dissemination of ICLZT technology; Livestock and annual crop production in wet-dry and humid-tropical Brazil; Livestock type; Herd size and performance; Background for ICLZT; The process of pasture degradation; Principal integrated zero tillage crop-livestock systems; General considerations; Systems typology; Common rotations; Crop successions used as building blocks for rotations; Summaries of the ten main ICLZT technologies; Crop establishment in degraded pastures; Establishing pasture in annual crops; Sowing pasture after early harvest; Grass oversown in soybeans or maize; Grass regenerating during the first crop after ZT planting of a crop in old pasture; Planting forages on crop land for silage, green chop, dry season grazing or as a cover crop; Pasture renovation with forages sown jointly with grasses, for early grazing;Pigeon pea sown into existing pasture to improve winter grazing quality; Sowing perenniallegumes into maize; Sowing soybeans in a permanent grass sward; Opportunistic grazing of stubble in the dry season; Pigeon pea undersown in maize for stubble grazing; Grazing stubble in the dry season; Pasture grasses; Cover crops for grazing; Cut forage and silage CTOpS; Pasture and grazing management; Legumes in pastures; Mechanized operations in zero tillage and soil fertility management 49 Residue management; Spraying desiccants and other chemicals; Planting and drilling; Soil fertility considerations; Technical and financial analysis of integrated crop-livestock zero tillage rotations; Case Study 1 - A farm history of the adoption of CA with Z; Wihout project;With ICLZT; lrrigated crop management - with and without project; Analysis of the Model Results; Case studies of other ICLZT technologies; Sustainable agriculture and policy considerations; Farm-based economic benefits of CA, ZT and ICLZT; Farm-based environmental benefits of CA, ZT and ICLZT; Social benefits of ICLZT and increased land use intensity; Social support for conversion investments in ICLZT; Addressing the conversion needs of small farmers.
Avis des internautes - Rédiger un commentaire
Aucun commentaire n'a été trouvé aux emplacements habituels.
Amazon annual crops AU/ha beef biomass biome black oats Brachiaria spp Brazil BRAZILIAN EXPERIENCE carrying capacity cattle Cerrado Cerrado biome CONSERVATION AGRICULTURE conventional tillage cover crops crop area crop residue crop rotations CROP YIELD cultivars decumbens degraded pasture desiccation drill dry season electric fences EMBRAPA environmental erosion farm Ferralsols finger millet forage radish forage sorghum forest Glyphosate green chop ha/ha harvest hectares herbicides ICLZT systems improve increased irrigated kg/ha Kluthcouski Landers legume levels lime livestock maize mitigation potential mucuna Nelore nutrient operations oversowing Panicum maximum pasture pasture renovation pearl millet percent permanent pasture phaseolus bean pigeon pea planter planting PLATE production rainfall rains reduced ruziziensis scenario seed silage small farmers sorghum sowing sown soybeans stocking rate stubble grazing sunflower surface SYSTEMS IN CONSERVATION Table tractor trash disc TROPICAL CROP-LIVESTOCK SYSTEMS undersown Vilela weeds winter grazing ZT and ICLZT