文献类型：期刊文献

中文题名：不同品种甘蔗生长对氮肥的响应与利用

英文题名：Responses of Sugarcane Varieties Growth to Nitrogen Fertilizer Application and Related Use Efficiency

作者：李进[1];段婷婷[1];邓凯[1];景占鑫[1];蔺中[1];梁燕秋[1];邓焯楠[2];高宇[1];郑超[1]

机构：[1]广东海洋大学化学与环境学院/农学院,广东湛江524088;[2]以色列理工学院环境工程系,以色列海法3200003

年份：2019

卷号：40

期号：4

起止页码：649

中文期刊名：热带作物学报

外文期刊名：Chinese Journal of Tropical Crops

收录：CSTPCD、、北大核心2017、CSCD2019_2020、北大核心、CSCD

基金：农业部公益性行业(农业)科研专项(No.A13174);广东省自然科学基金项目(No.2017A030310662);广东省本科高校创新创业教育改革研究项目(No.2018A012404);广东海洋大学科研启动费资助项目(No.E15038)

语种：中文

中文关键词：甘蔗;产量;产糖量;氮肥;肥料利用率

外文关键词：sugarcane;crop yield;sugar yield;nitrogen fertilizer;fertilizer use efficiency

中文摘要：本文以研究区当家甘蔗品种台糖22(ROC22)、柳城5136(LC5136)、粤糖236(YT236)为材料,设5个不同氮肥施用量,研究施氮量对不同品种甘蔗生长及氮肥利用的影响。结果表明:(1)施氮量增加,3种甘蔗的茎重和产量先增加后无显著变化。ROC22和LC5136在施氮量为351.9 kg/hm2时较为适宜,而YT236在234.6 kg/hm2时较适宜;ROC22的产量最高,分别比LC5136和YT236增产8.6%和40%。(2)随施氮量的提高,LC5136和YT236的产糖量呈先增加后无明显变化的趋势。ROC22的产糖量在施氮量为351.9kg/hm2时显著大于无氮处理的,但不同施肥量处理间无显著差异;ROC22的平均产糖量分别比LC5136和YT236高20%和57%。(3)随着施氮量的增加,ROC22和YT236的氮肥利用率呈递减趋势,施氮量为117.3kg/hm2时利用率最高。而LC5136的肥料利用率呈递增趋势,施氮量为469.2 kg/hm2时利用率最高;ROC22的氮肥利用率比LC5136和YT236的均高出10个百分点。综合考虑甘蔗产量、产糖量、氮肥利用率的情况,氮肥用量为351.9kg/hm2时,对ROC22和LC5136较适宜,而在234.6kg/hm2时,对YT236较适宜。在研究区种植甘蔗ROC22明显优于LC5136和YT236。

外文摘要：The aim was to investigate the optimum nitrogen(N) fertilizer application for different sugarcanes varieties to conserve resources and reduce pollution.Using three main local sugarcanes varieties,ROC22,LC5136,and YT236,for experiments,5 levels of N fertilizers quantities were set to study the effects of N fertilizer application on different sugarcanes varieties.The results showed that:(1) The weight of stem and yield of all three sugarcanes varieties increased with N fertilizers increased,followed by no significant change.The best application rate for ROC22 and LC5136 was 351.9 kg/hm2,while that for YT236 was 234.6 kg/hm2.The yield of ROC22 was the highest,which was more than LC5136 and YT236 for 8.6% and 40%,respectively.(2) The sugar yield of LC5136 and YT236 increased with increasing N fertilizer,followed by leveling off.The sugar yield of ROC22 with N application of 351.9 kg/hm2 was significantly higher than no N application,but no obvious difference for different N applications.The average sugar yield of ROC22 was 20% and 57% higher than that of LC5136 and YT236.(3) The effect of N application on three sugarcanes varieties was different.With increasing N application,the use efficiency of N fertilizer of ROC22 and YT236 showed decreasing trend,reaching highest efficiency at 117.3 kg/hm2.The use efficiency of N fertilizer of ROC22 was 10% higher than that of LC5316 and YT236.Considering the yield of sugarcanes,yield of sugar,and use efficiency of N fertilizer,the optimum N fertilizer application for ROC22 and LC5136 was 351.9 kg/hm2,while that of YT236 was 234.6 kg/hm2.The growth of ROC22 in the study area was obviously better than LC5136 and YT236.