There are various designs of tools and equipment used for harvesting the crops and threshing it separately. Sickles, hand tools and reapers for grain crops and diggers for tuber crops and rhizomes, operated with different power sources are used. Combine harvesters, both tractor mounted and self-propelled, are being very widely used for different grain crops. Functional requirements and principl...

The particle size distribution of wood chips, along with the moisture content, are some of the main parameters for defining the quality of most wood fuels. A new experimental rotor, powered by the self-propelled forage harvester Claas Jaguar was developed by the Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CRA), Agricultural Engineering Research Unit (CRA-ING). The...

This work analyses the market value of second hand agricultural tractors in Spain for the period 1999-2002, with the aims of obtaining the most appropriate valuation models (through the use of ordinary least squares regression) and proposing an empirical model that estimates the true depreciation of these vehicles. Differences in tractor depreciation were studied in terms of the three horsepowe...

ijur_1142 151..164 In an increasingly global India, an agricultural community in Pune, Maharashtra was faced with losing farmland to urbanization and devised an unusual solution. Pooling their land together, these farmers leveraged their social and political networks to take advantage of the changing economic climate in Pune and built a mixed-use township on their 400 acres of farmland. They fo...

International conflict over agricultural regulation continues after more than six years to threaten to destroy the whole Uruguay Round of the General Agreement on Tariffs and Trade (GATT), and with it an agreement that greatly extends corporate power relative to national (and public) power. Paradoxically, the deadlock has been caused by a type of national regulation of agriculture whose days ar...

This article presents a comprehensive review of the literature that deal with ventilation and cooling technologies applied to agricultural greenhouses. The representative application of each technology as well as its advantages and limitations are discussed. Advance systems employing heat storage in phase change materials, earth-to-air heat exchangers and aquifer-coupled cavity flow heat exchan...