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首页> 外文期刊>Australian Journal of Crop Science >Tractor performance and corn crop development as a function of furrow opener and working depth in a Red Latosol
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Tractor performance and corn crop development as a function of furrow opener and working depth in a Red Latosol

机译：拖拉机性能和玉米作物发育与红色拉托索犁沟和工作深度的关系

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To use a no-tillage system, the producer must know the ideal tool for each condition encountered in the soil. In seeding, the function of the furrow opener is loosening and disturbing the soil, but if the opener lacks the specific geometry for a specific soil condition, the furrow opening angle could be incorrect, leading to compaction due to mirror formation on the walls of the furrow. The aim of this study was to analyze three hoe-type furrow openers of planters at different working depths, evaluating the area of disturbed soil, tractor performance, and corn crop yield. The experiment was conducted in areas of the UNESP/FCAV, Brazil on a soil classified as a Eutroferric Red Latosol. A randomized block design with factorial scheme 3 × 5 (three shanks: FO1, FO2, and FO3, and five depths: WD1, 6.0; WD2, 9.5; WD3, 10.5; WD4, 12.0; and WD5, 13.5 cm), with four replications was used. The results showed that the soil disturbance was highest at working depths of WD3, WD4, and WD5. With WD1 and WD2, the emerged seedlings began the crop cycle in fewer quantities (72839 and 73380 plants ha-1, respectively). The final stand of the crop, corn-grain yield, and biomass were not affected by the treatments. The opener with greatest tip angle (29°) showed a lower traction power demand and fuel consumption than openers with 27° and 17° at working depth WD5, and in general, incurred higher fuel consumption per volume of soil disturbance. Opener geometry and soil type directly affect soil disturbance, machine performance, and crop development. However, in this study, we suggest the opener with a rake angle of 27°, working at greater depth, because this combination provided better fuel consumption per volume of disturbed soil and no reduction of crop productivity.
机译：要使用免耕系统，生产者必须了解土壤中遇到的每种情况的理想工具。在播种时，开沟器的功能是松动并扰动土壤，但是如果开沟器缺少针对特定土壤条件的特定几何形状，则开沟角可能会不正确，从而导致压实，这是由于开沟器壁上的镜子形成了。畦。这项研究的目的是分析在不同工作深度的三个ers型开沟机，评估受干扰土壤的面积，拖拉机的性能和玉米作物的产量。该实验是在巴西UNESP / FCAV地区的土壤中进行的，该土壤被分类为Eutroferric Red Latosol。随机块设计，阶乘方案3×5（三柄：FO1，FO2和FO3，五个深度：WD1，6.0; WD2，9.5; WD3，10.5; WD4，12.0;和WD5，13.5 cm），四个使用了复制。结果表明，在WD3，WD4和WD5的工作深度，土壤扰动最大。有了WD1和WD2，出苗的幼苗开始了数量较少的作物周期（分别为72839和73380株ha-1）。作物的最终收成，玉米籽粒产量和生物量不受处理的影响。在工作深度WD5处，开顶角最大（29°）的开门器比27°和17°的开门器显示出更低的牵引动力需求和燃料消耗，并且通常每单位土壤扰动量产生更高的燃料消耗。开瓶器的几何形状和土壤类型直接影响土壤扰动，机器性能和农作物生长。但是，在本研究中，我们建议使用前角为27°的开沟器，以更深的深度工作，因为这种组合可提供更好的单位体积受干扰土壤燃料消耗，并且不会降低作物生产力。

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