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Increased planting speed did not affect silage and grain yield of maize, while saving seed and energy
Italian Journal of Agronomy ( IF 2.2 ) Pub Date : 2020-07-02 , DOI: 10.4081/ija.2020.1612
Filip Vučajnk , Igor Šantavec , Darja Kocjan Ačko , Jurij Rakun , Jože Verbič , Rajko Bernik , Stanislav Trdan , Matej Vidrih

Optimal planting speed of vacuum maize planters is usually suggested by planter’s manufacturers, while increased planting speed may influence plant spacing and finally yield. Our hypothesis was that by increasing planting speed over the suggested level plant spacing variability will also increase which will result in decrease of silage and grain yield and saving of seed and energy. The field trial consisted of three planting speeds of 7, 9 and 11 km/h in the form of random blocks. The following measurements were taken as follows: plant spacing, silage and grain yield, fuel and energy use at planting. Results in this study show that planting speed did not have significant influence on silage and grain yield of maize, while up to 10% less seed was needed per hectare and fuel and energy use was lower for 15%. By the increase of planting speed the distance between the plants in a row, and in most cases also the plant spacing variability increased. It was noticed that by increasing planting speed plant density decreased. This research established that at higher planting speeds significant increase of the silage yield per individual plant and of the grain yield per individual plant was achieved. The ear parameters also show that the kernel mass per individual ear, the ear mass, and the cob mass, as well as the individual kernel mass, are larger at the planting speed of 11 km/h than at the planting speed of 7 km/h. At the latter planting speed, significantly higher fuel consumption per hectare and higher energy use was achieved than at the other two planting speeds. Overall the main benefits of planting speed of 11 km/h is saving seed and energy at planting while maintaning the same level of silage and grain yield compared to lower planting speeds used in the trial.



中文翻译:

提高播种速度不会影响玉米的青贮饲料和谷物产量,同时可以节省种子和能源

真空玉米播种机的最佳播种速度通常由播种机的制造商提出,而增加的播种速度可能会影响株距并最终影响单产。我们的假设是,通过提高播种速度至建议水平以上,植物间距变异性也将增加,这将导致青贮饲料和谷物产量下降,并节省种子和能量。田间试验包括以随机块的形式的三种种植速度,分别为7、9和11 km / h。进行以下测量:种植间距,青贮饲料和谷物产量,种植时的燃料和能源消耗。这项研究的结果表明,播种速度对玉米的青贮饲料和谷物产量没有显着影响,而每公顷所需的种子减少多达10%,燃料和能源的使用降低了15%。通过提高种植速度,连续种植之间的距离,并且在大多数情况下,种植间距的变化也增加了。注意到通过增加播种速度,植物密度降低了。这项研究表明,在更高的种植速度下,每株单株青贮产量和单株谷粒的产量都得到了显着提高。耳朵参数还显示,在11 km / h的种植速度下,每只耳朵的穗粒质量,穗质量和穗轴质量以及单个籽粒质量比7 km / h的种植速度要大。 H。在后一种播种速度下,与其他两种播种速度相比,每公顷燃料消耗和能源使用量均显着提高。

更新日期:2020-08-20
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