MICHAEL J. RENNIE,* RICHARD H. T. EDWARDS,* C. T. MERVYN DAVIES,? STEPHEN KRYWAWYCH,* DAVID HALLIDAYJ JOHN C. WATERLOW$ and DAVID J. MILLWARD$ *Department of Human Metabolism, University Colrege London Medical School, London W C l E SJJ, U.K., ?Medical Research Council Environmental Physiology Unit and $Department of Human Nutrition, London School of Hygiene and Tropical Medicine, London W C l ...

ABSTRACT-In conventional agriculture, a large amount of energy is consumed in fuel consumption and depreciation of farm tractors and any other farm equipment mostly in tillage and planting operations. The main purpose of this research was to evaluate a till-planting unit equipped with three jointers. This unit was expected to act as conventional furrow openers such as shovel openers tilling the...

suitable soil structure is important for crop growth. one of the main characteristics of soil structure is the size of soil aggregates. there are several ways of showing the stability of soil aggregates, among which the determination of the median weight diameter of soil aggregates is the most common method. in this paper, a method based on adaptive neuro fuzzy inference system (anfis) was used...

Effects of six tillage practices on some soil microbiological properties and crop yields were evaluated for a clay soil (Typic Haploxererts) under semi-arid Mediterranean conditions in a three year study (2006-2009). The experiment was designed as a completely randomized-block with three replications. Treatments were: conventional tillage with residue incorporated (CT1), conventional tillage wi...