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Efficiency of Alfalfa Hay Mowing Machines under the Dryland Conditions

机译:旱地条件下苜蓿干草割草机的效率

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This paper presents the tests results of three types of hay mowing machines (later in text: mowers), namely a self-propelled oscillatory mower-conditioner and two tractor-mounted mowers with oscillatory and rotary blades, used to mow alfalfa grown under dry land conditions in the region of central Serbia during three seasons in 2014, 2015 and 2016. Although characterized by older design, they are still commonly used at smaller and medium size farms in this region. Therefore, their optimal exploitation parameters are still of large importance for hay quality and production efficiency and sustainability. The exploitation parameters of all three mowers generally increased linearly with higher speeds, having high R2 values (over 0,8), with rare exceptions. The regression coefficients b clearly showed that the self-propelled mower-conditioner achieved maximum increase in production performance (b = 0,3606), compared with the oscillatory (b = 0,1158) and rotary mowers (b = 0,1414). Mower design had a significant (p ≤ 0,001) effect on cutting and chopping losses, production performance, and specific fuel consumption (p ≤ 0,05). The tests confirmed the superiority of the self-propelled mower over the two mowers aggregated with tractors.
机译:本文介绍了三种类型的干草割草机的测试结果(后来文本:割草机),即自推进式振动割草机调节剂和两个带有振荡和旋转叶片的拖拉机安装的割草机,用于修剪苜蓿在干燥的土地下种植塞尔维亚中部地区的条件在2014年,2015年,2016年的三个赛季。虽然以旧设计为特征,但它们仍然在该地区的较小和中型农场中常用。因此,它们的最佳开发参数对于干草质量和生产效率和可持续性仍然具有很大的重要性。所有三个割草机的开发参数通常以较高的速度线性增加,具有高R2值(超过0,8),具有罕见的例外。回归系数B清楚地表明,与振荡(B = 0,1158)和旋转割草(B = 0,1414)相比,自走式割草机调节器实现了生产性能的最大增加(B = 0.3606)。割草机设计对切割和切碎损耗,生产性能和特定燃料消耗有显着(p≤0,001)效果(p≤0,05)。该测试证实了与拖拉机聚集的两种割草机上自行式割草机的优越性。

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