迟播条件下盐丰一号需肥特性研究

Effect of Nitrogen and Dressing Ratio on Yields and Related Traits of Late Sowing Barley

试验结果表明:迟播条件下,大麦盐丰一号施氮量在112.5～187.5kg/hm2,基追比以6∶4～4∶6为宜。各处理组合以纯氮112.5kg/hm2,基追比6∶4产量为最高;纯氮187.5 kg/hm2,基追比6∶4和4∶6处理组合产量次之。氮肥作基肥一次性施入较同等施氮水平处理组合的产量均减产。

The proper nitrogen application and dressing ratios for harley （Yanfeng No. 1） were 112.5-187.5 kg/ha and 6： 4-4：6. The treatment of 112.5 kg/ha nitrogen and 6：4 dressing ratio had highest yield. The yield of 187.5 kg/ha nitrogen and 6：4 or 4：6 dressing ratio treatment took the second place. Barley yield of treatment using nitrogen as basal fertilizer only once reduced compared with treatments of the same nitrogen application level.