期刊论文

Effects of controlled release nitrogen fertilizer application on yield and nitrogen absorption and utilization of early mature rapeseed

中文

中国油料作物学报

1007-9084

2018

40

4

558-565

10.7505/j.issn.1007-9084.2018.04.013

国家油菜产业技术体系(CARS-12) 江西省***人才资助计划(20171BCB23082) 江西省科技创新团队建设计划(20152BCB24013) 江西省农业科学院博士启动项目(20162CBSO09)

本校为第一机构

为给控释氮肥在双季稻区早熟油菜生产上大面积应用提供依据,研究控释氮肥用量对早熟油菜产量及氮素吸收利用的影响,以早熟常规油菜“1358”为材料,于2012- 2013年在江西省油菜主产县(市)设置6个田间试验,调查控释氮肥用量对早熟油菜产量、产油量及氮素吸收利用的影响。结果表明,控释氮肥施肥效应与普通氮肥施肥效应均有随施氮量的增加而增产的趋势。等量控释氮肥一次性基施比普通尿素分次施用增产,甚至适量降低控释氮肥用量也能达到普通氮肥合理施用量的产量水平,同时提高了氮肥利用率。在180kg/hm~2施氮水平下,控释氮肥一次性基施较普通尿素分次施用(底施60%,苗期施20%和抽薹期施20%)显著增产,...

The effects of controlled release nitrogen (CRN) fertilizer application on yield,oil content,nitrogen absorption and utilization of early mature rapeseed were studied,in order to provide a scientific basis for CRN fertilizer application on early mature rapeseed in double cropping rice area of southern China. Rapeseed cultivar 1358 with short growth period was used as material in 6 field experiments in Jiangxi Province during 2012 - 2013. Results showed that CRN effect was consistent with normal nitrogen fertilization on rapeseed. Yield increased with the increased nitrogen application rate. Th...