期刊论文

Characteristics of dry matter and nutrient accumulation in various organs of early maturing winter rape

中文

中国油料作物学报

1007-9084

2021

43

04

690-699

10.19802/j.issn.1007-9084.2020003

国家重点研发计划项目（2018YFD0200900）；

本校为第一机构

为制定合理的早熟冬油菜品种的施肥方案,以适宜"稻—稻—油"三熟制的早熟冬油菜高产栽培,于2018-2019年选用早熟品种湘油420、湘油103和常规熟期品种湘油1035、湘杂油710×1035开展田间小区试验,播种45 d后间隔15～20 d取样,监测各器官干物质积累动态变化及氮、磷、钾养分积累动态,比较早熟与常规熟期冬油菜品种各器官干物质积累及养分吸收规律。结果发现:早熟品种干物质和养分积累高峰主要分布在开花期—角果发育期,且净增量最大时期出现较晚,明显延后于常规熟期品种（苗期—开花期）。两种熟期品种叶部干物质及养分积累最大的时期均为苗期,但该期叶部干物质和养分净增量占比早熟品种低于常规熟...

To provide reference for optimal fertilization scheme on high yield early maturing winter rape (Brassica napus L.), experiments were carried out to compare differences of dry matter accumulation and nutrient absorption among various organs of early maturing cultivars (EMC) suitable for rice-rice-rape tri-ripening with conventional maturity cultivars (CMC). From 2018 to 2019, EMCs (Xiangyou 420, Xiangyou 103) and CMCs (Xiangyou 1035, Xiangzayou 710×10~(35)) were planted for field plot experiments. Samples were collected from plants 45 days afte...