Effects of knife shapes and cutting speeds of a mower on the percentage pulverization of sweet potato vine

• Main Authors: Kakahy, Amer Najat Najmaldeen, Ahmad, Desa, Hamid, Md. Akhir, Sulaiman, Shamsuddin, Aris, Ishak
• Format: Article
• Language: English
• Published: Trans Tech Publications 2013
• Online Access: http://psasir.upm.edu.my/id/eprint/28576/1/Effects%20of%20knife%20shapes%20and%20cutting%20speeds%20of%20a%20mower%20on%20the%20percentage%20pulverization%20of%20sweet%20potato%20vine.pdf; http://psasir.upm.edu.my/id/eprint/28576/; http://dx.doi.org/10.4028/www.scientific.net/AMM.421.29
• Institution: Universiti Putra Malaysia

The effects of a rotary slasher with two different shapes of knives (L and Y-shaped) at three cutting speeds (1830, 2066 and 2044 rpm) were studied on percentage of pulverization of sweet potato vine passing through the sieve (< 28 mm2). The results showed that all the treatments were significant at p 0.05 and p 0.01 significance level. The best result was by Y-shaped knife with highest vine pulverized percentage of 82.76 % and a mower speed of 2440 rpm had the finest vine pulverized percentage of 90.48 %. The best performance for interaction effects between knife shapes and speeds of mower was achieved by the Y-shaped knife and a mower speed of 2440 rpm resulting in an average percentage of 92.62 % of pulverized vine.