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Comparing herbigation and conventional method of eradicane application in a corn field

机译：比较玉米田中菊苣和菊苣的施用方法

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Applying herbicide through irrigation water (herbigation) is practised widely by farmers in corn fields of Iran, however, the efficacy of this method has not been warranted. Thus, a field study was conducted in 2006 at Research Fields of University of Tehran (Karadj) to compare the conventional method of herbicide application (spraying) with different herbigation treatments. Eradicane, a commonly used herbicide in corn fields, was selected as a test herbicide in this experiment. Eradicane was applied at 5.5 (labelled rate), 3.85 or 7.15 l/ha using four application methods. Methods were the conventional spraying (CS), herbigation via the first irrigation (HRB 1), herbigation via the second irrigation (HRB 2) and applying eradicane through both the first and second irrigations at half dose of a single application rate (HRB 3). The experimental design was a randomized complete block with three replications. Weed infested, weed free and atrazine plus alachlor (at 1 kg/ha+5 l/ha) were also included as controls. The results showed that the application methods and eradicane doses affected significantly the corn yield and all yield components (P <= 0.01) except 100-seed weight. The highest grain yield (10.62 t/ha) was observed with CS method, however, did not differ from the HRB 2 treatment. Eradicane applied at either rates of 5.5 or 7.15 l/ha resulted in the highest grain yields. There were also no significant differences between CS and HRB 2 for other yield components as well as weed biomass reductions. No eradicane treatment was found to be as effective as atrazine plus alachlor in increasing corn yield and growth parameters. The results of this experiment suggested that CS method had a better performance than herbigation, but if farmers are about to apply eradicane through furrow irrigation, a herbigation via the second irrigation at the maximum rate of 7.15 l/ha could be recommended.
机译：在伊朗的玉米田中，农民广泛采用通过灌溉水（除草剂）施用除草剂，但是，这种方法的有效性尚未得到保证。因此，2006年在德黑兰大学研究领域（Karadj）进行了实地研究，比较了传统的除草剂施用（喷洒）方法与不同的放牧处理方法。在本实验中，选择了玉米地里常用的除草剂伊兰肯作为测试除草剂。使用四种施用方法以5.5（标明的比例），3.85或7.15 l / ha的比例施用伊拉迪康。方法是常规喷洒（CS），通过第一次灌溉进行her股（HRB 1），通过第二次灌溉进行her股（HRB 2）以及通过第一次和第二次灌溉均以单次施用量的一半剂量施用根除烷（HRB 3） 。实验设计是具有三个重复的随机完整块。还包括杂草，无杂草和at去津加甲草胺（1 kg / ha + 5 l / ha）作为对照。结果表明，除100粒重外，施用方法和根除烷剂量对玉米产量和所有产量成分（P <= 0.01）都有显着影响。 CS法观察到最高谷物产量（10.62 t / ha），与HRB 2处理没有区别。以5.5或7.15 l / ha的比例施用蓝宝石导致最高的谷物产量。其他产量成分以及杂草生物量减少方面，CS和HRB 2之间也没有显着差异。在增加玉米产量和生长参数方面，未发现根除烷处理与阿特拉津加甲草胺一样有效。该实验的结果表明，CS法比放牧具有更好的性能，但如果农民要通过沟灌进行根除，则建议以第二次灌溉以7.15 l / ha的最大速率进行放牧。

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