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爱科农艺小课堂:耕作的力量

2020-03-06 16:05:13 来源:爱科在线 阅读量:19588 评论

导读:2019年,爱科启动了一项多年耕整地研究项目,主要关注作物种植前对土地的处理方式,即种植者的苗床耕整地模式对种植和产量到底有什么影响?

  【农机网 明星企业】 随着“爱科作物之旅”的推进,目前该项目已经卓有成效,我们始终致力于将继续把有助于提高玉米产量和利润的实践经验分享给各位。现在正值春耕时期,让我们一起来领略一下耕作的力量。
 
  2019年,爱科启动了一项多年耕整地研究项目,主要关注作物种植前对土地的处理方式,即种植者的苗床耕整地模式对种植和产量到底有什么影响?
 
  为此,我们在美国多地进行了详尽的田间试验,用来比较使用传统的田间中耕机或整地机培育的苗床与使用短圆盘、高速圆盘或垂直耕具进行耕整地的苗床,来判断两种耕作方式哪种成功率会更高。

  爱科农学和农场解决方案主任Darren Goebel表示:“*,幼苗的萌发至关重要,因此我们一直在研究和报告在种植过程中需要使用播种机来完成很多关键步骤。现在让我们后退一步,尽我们所能确保在播种之前,通过合理的耕整地方式来创造合适的苗床。”
 
  Goebel提到他的作物考察队在春季苗床准备期间,在不同的地区、不同的种植模式和不同的土壤类型之间,同时进行了对比试验。第一次重要的测量是在种植玉米的犁沟里用市场上能买到的传感器进行的。他说:“我们使用的播种机配备了Precision Planting®(精准播种)技术,包括新的SmartFirmer®。我们尽可能地获取每一个读数,尤其让我感兴趣的三个要素是通过更精确地测量而得出的土壤温度、土壤湿度和犁沟里的残留物含量。”

  在不同的耕作方式下,这些因素是否会变化呢?如果是的话,不同的耕整地方式对播种机和之后的玉米产量又会有什么影响呢?
 
  通过研究,Goebel表示土壤表面的残留物对土壤温度有很大的影响,这极大地影响了玉米的生长和发育。此外,“Precision Planting® 研究已经表明,犁沟中的残留物对产量确实有负面影响。因此,我们需要了解哪种组合耕整地方式在减少犁沟残留和管理地表残留方面做得更好。”

  每一块地种植后不久,现场专家都会进行检查,估算土壤表面残留的百分比。随着作物的生长,他们将挖掘、检查和拍摄根系,并测量和跟踪作物高度,这些将作为土壤压实和其他因素如何影响根系健康和发育的指标。
 
  作物之旅地块的参观者可以看到这一过程,同时也可以看到挖掘后的土壤剖面观察作物生长的情况,所以不同耕作方式对苗床环境以及后续作物产量的到底会产生什么样的影响呢?在这里,我们先留个小悬念。我们将通过终的产量对比得出结论。
 
  欲知详情如何,且听农艺小课堂专栏下回分解。

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