Application of MS Excel to Estimate Power Needs of Tillage Tools
Journal Title: Journal of Agricultural Machinery - Year 2021, Vol 11, Issue 1
Abstract
This study deals with the application of the Microsoft Excel for the estimation of the power requirements of some tillage implements. The mathematical formulas embedded in the spreadsheet file have been developed in the previously published papers; however, those formulas were augmented herein in order to contain some agricultural mechanization issues. Another feature of this article is the ability of the spreadsheet to generate trend curves automatically. The comparison of the power expenditure aspects of different tillage implements as well as the inspection of the effect of an arbitrary selected input parameter on the spreadsheet outputs were effectively performed. Numerically, the specific work of the rotary tiller was estimated two times to five times higher than the specific work of drawing implements. Furthermore, as an example of trend curves derived in this article, the increase in disc angle in the range of 25° to 70° reduced the draft and power needs of the disc plow by 66% and 54%, respectively. However, it increased the disc plow specific draft and power by 34% and21%, respectively.
Authors and Affiliations
I. Ahmadi,
Grain Physical Properties of Some Sunflower Cultivars Influenced by Water Deficit Stress
In order to investigate the water deficit impact on physical characteristics of seed in four sunflower hybrids (Azargol, Allstar, Hysun 33 and Hysun25), under three irrigation regimes (irrigation after 50, 100 and 150 mm...
Effect of Frequency and Vibration Time on Shaker Performance for Mechanized Harvesting of Orange (Thomson cultivar)
Manual citrus harvesting is commonly performing hard, expensive and time consuming. In this study, a factorial experiment with a completely randomized design in three replications was performed to find out the effect of...
Identification and Counting of Two Important Greenhouse Pests by Image Processing, Case Study: Whitefly and Thrips
Introduction Lack of water resources, increasing demands for food, the optimal use of water and land, and food security are of the most important reasons for the development of greenhouses in the country. The benefits of...
Operational comparison of two types of tractor sprayers (microner and boom-type) against wheat crop weeds
Introduction: Nowadays, the tractor mounted boom sprayer is used in many agricultural fields. These sprayers have many advantages compared to other sprayers, but in Iran, their field efficiency is much lower than that of...
Evaluating Histogram Equalization and Thresholding Methods for Segmentation of Rosa Damascena Flowers in Color Images
Several histogram equalization methods for enhancing the color images of Rosa Damascena flowers and some thresholding methods for segmentation of the flowers were examined. Images were taken outdoors at different times o...