论文部分内容阅读
为研究海藻寡糖增效肥料(NPK)对玉米生长的影响,采用盆栽试验,以多肽为阳性对照组。结果表明,海藻寡糖增效肥料(NKP)明显提高了玉米的肥料利用率及产量,且在海藻寡糖添加量为0.4%时,玉米的氮肥利用率、磷肥利用率、钾肥利用率,百粒质量及产量均达到最大,分别为73.59%,50.15%,26.60%,21.66,82.13 g/盆,相对于常规对照处理分别提高了49.59%,52.85%,24.30%,16.45%,13.75%;而多肽添加量则为0.8%,0.4%,0.4%,0.2%,0.8%时,玉米的氮肥利用率、磷肥利用率、钾肥利用率、百粒质量、产量分别达到最大,分别为57.19%,41.03%,23.98%,20.81,77.34 g/盆,相对于常规对照处理分别提高了16.57%,25.05%,12.06%,11.88%,7.12%。因此综合比较,海藻寡糖对提高玉米肥料利用率及产量较好。
In order to study the effects of seaweed oligosaccharide synergist fertilizer (NPK) on the growth of maize, the pot experiment was conducted, and the polypeptide was used as the positive control group. The results showed that the utilization efficiency of kenaf oligosaccharide fertilizers (NKP) significantly increased the yield and yield of maize. When the amount of alginate oligosaccharide was 0.4%, the N fertilizer use efficiency, P fertilizer use efficiency, K fertilizer use efficiency, Compared with the control, the average grain yield and yield reached the maximum, which were 73.59%, 50.15%, 26.60%, 21.66 and 82.13 g / pot respectively, increased by 49.59%, 52.85%, 24.30%, 16.45% and 13.75% When the amount of polypeptide added was 0.8%, 0.4%, 0.4%, 0.2%, 0.8%, the N use efficiency, P utilization efficiency, K fertilizer utilization efficiency, 100 grain quality and yield of maize reached the maximum respectively 57.19% and 41.03 %, 23.98%, 20.81 and 77.34 g / pot, respectively, increased by 16.57%, 25.05%, 12.06%, 11.88% and 7.12% compared with the conventional control. Therefore, comprehensive comparison, seaweed oligosaccharides improve corn fertilizer utilization and yield is better.