Mechanical Research Progress Abroad Cassava Harvest
2016-04-26World cassava growing countries, mostly developing countries, the production technology generally weak. According to the World Organization (FAO) Production Yearbook shows that about more than 90 countries around the world planting cassava, mainly in Africa, South America and Southeast Asia and other developing countries, accounting for 70% of world cassava production.
Research on cassava harvest mechanization technology and equipment, overseas China started relatively early. Brazil, Thailand, Cuba, Malaysia, Colombia, Nigeria and other countries for many years carried out a number of related research; Australia in 2009 to carry out research, development of small-scale cassava harvester in April 2010 for testing.
At present, the degree of mechanization of cassava production in Brazil is relatively high, followed by Thailand. As the origin of cassava in Brazil, production and export of a large number of agricultural machinery, its leading cassava production machinery development world. The current model is widely cassava growing countries learn mostly from Brazil. Colombia CLAYUCA (Latin America and the Caribbean Cassava Research and Development Support Alliance) and Nigeria and other countries have been committed to the original research and development in Brazil, cassava harvesting machinery to be improved to adapt to local needs, but due to the different geographical and growing conditions, is still at an experimental improvements. Nigeria in particular, to solve the problem of mechanical harvesting cassava had a lot of cooperation with Brazil to develop and test.
However, according to fellow members of the Third World Academy of Sciences in a research project application report noted that the current foreign-developed various types of harvesting machinery, still can not meet the production needs, especially in the process of put into use, there are still many problems. Existing harvesting machinery mainly under easier conditions for harvest applications. When compacted soil drought, rainy or muddy and wet, sticky soil large or overgrown land, then poor adaptability, low reliability, the impact of large scale applications. Brazil cassava production machinery and technology has been leading the world though, but did not fully realize the mechanization of cassava production. Nigeria, the world's largest cassava growing countries, has a pivotal position in the international impact of the development of cassava, cassava harvest but still rely mainly on livestock operations.
Cassava harvesting machinery, mainly digging type, pull type and dug a total of three kinds of pull-type combine. The second three harvesting, low productivity, difficult work, demanding on soil conditions, especially pressure at moderate or heavy clay machinery applied root cause rupture, resulting in injury and loss of roots. To improve productivity, reduce the loss of roots, the current world cassava root harvest mostly used for digging style.
Brazil planticenter company developed the P900 double row cassava excavators, Brazilian typical models, but also the most widely used model in the world at present, many countries and regions, on this basis, developed a large number of similar models. The main working parts of a 72 ° angle into the V-shaped blade, the blade edges are about 90 cm long or so, when the left and right edges of each row harvesting operations.
But the left and right edge length of the large, resulting in heavy equipment load, low strength, poor reliability. A Brazilian company also produces a large combine harvester, can be a complete two rows of cassava roots digging, shaking soil and transport by 12 people with the job, is the only been reported cassava combine harvester. The models in February 2004 began reporting test case, but then again not been reported related to the application.