Evaluation of wheat stubble management practices in terms of the fuel consumption and field capacity

Abstract

Gürsoy S., Kolay B., Avşar Ö., Sessiz A. (2015): Evaluation of wheat stubble management practices in terms of the fuel consumption and field capacity. Res. Agr. Eng., 61: 116-121.Five wheat stubble management practices i.e. chopping the stubble by the chopper mounted on combine during harvest and transmitting the straw to trailer (SCDF), chopping the stubble by the chopper mounted on combine during harvest and spreading the straw to field surface (SCDS), chopping the stubble on field surface after harvest by chopper mounted on combine and transmitting the straw to trailer (SCAF), leaving the stubble on field surface (SLS) and removing the stubble left on field surface by baling (SSB) and the cutting height of combine header (10 and 20 cm) were evaluated in terms of fuel consumption and field capacity. The result of the studies showed that the cutting height of header was increased from 10 to 20 cm, the field capacity increased from 1.195 to 1.365 ha/h and the fuel consumption decreased from 54.472 to 38.859 l/ha. While the highest field capacity was determined in SLS (1.846 ha/h), SCAF and SSB treatments had the lowest field capacity (0.954 and 0.891 ha/h, respectively). Chopping the stubble by chopper mounted on combine and transmitting straw to trailer during harvest increased the fuel consumption of combine by 3.6 times.

Determining the effect of the direction of installing the cutting edges of shredder roller blades on process parameters

“…Among the main ones is the option of placing a blade-shaped working body, the justification of which would make it possible, all other conditions being equal, to create the greatest value of destructive force in the vertical plane. According to the results of the analysis of the obtained theoretical dependence (6), the greatest value of the vertical force is found in the blade, the cutting edge of which is directed in the direction opposite to the direction of rotation. These results were confirmed by experimental studies of grinding with a roller in the solo version of sunflower and corn stalks.…”

“…A thin layer of mulch on the surface accumulates moisture well and is favorable for the rapid germination of carrion seeds. For farms with a high concentration of rapeseed, the shredder roller is as important a tool for maintaining a proper agricultural culture as it is for reliable grinding of corn stalks [5,6].…”

Design of a roll crusher for sunflower stems and substantiation of the rational modes of its operation

“…On the contrary, their unsystematic use can lead to the accumulation of large masses of plant residues on the soil surface, which slows its warming up in spring. Uniform mixing of plant residues with the soil is also advisable in terms of their rapid decomposition, the formation of favorable conditions for sowing, and preventing early clogging [14].…”

Innovative research method of the fuel injector that allows to evaluate the efficiency of wood chip drive control systems

“…Energy consumption of chopping branches processes by mobile wood chippers is mainly assessed by fuel consumption [1]. The research on the efficiency of non-road mobile machines [2,3] (wood chopping machines [1]) and the emissions they generate [1,4,5] are important as they significantly influence the assessment of the entire processes in which they are used. Due to the liberal homologation regulations [6][7], these drives are characterized by a carburettor fuel supply system [8][9][10], which in contrast to modern systems is characterized by limited possibilities of monitoring work parameters [4].…”