金华地区油菜越优1203的迟播适宜施氮量和播种量研究
Suitable Sowing Amount and Nitrogen Application of Yueyou 1203 for Late Sowing in Jinhua Area
张翯 1施佳炜 1王蓉 1金成兵1
作者信息
- 1. 金华市农业技术推广与种子管理中心,浙江金华 321000
- 折叠
摘要
为探究金华地区油菜迟直播绿色高效栽培技术,选用杂交油菜新品种越优 1203,试验设置 6 个施氮量(0、135、180、225、270、315 kg/hm2)和6个播种量(3.00、4.50、6.00、7.50、9.00、10.50 kg/hm2),分析不同施氮量和播种量对越优1203 产量和经济性状的影响,研究其在金华地区迟播适宜施氮量和播种量.结果表明,11月18日迟播越优1203,随着氮肥的增加,株高、茎粗、分枝部位、主花序长度、一次分枝数、两次分枝数、每株有效荚数、每荚实粒数、千粒重呈显著上升趋势,油菜大田实际产量显著增加,在315 kg/hm2 施氮量下产量达到最大值,但与施氮量225、270 kg/hm2 处理相比无显著差异.随着播种量的增加,油菜密度逐渐增加,分枝部位高度逐渐升高,株高、茎粗、主花序长度、分枝数、每株有效荚数、每荚实粒数均呈降低趋势,千粒重无显著变化,产量先增加后降低,在播种量6.00 kg/hm2时最高.因此,在金华地区迟播越优1203,应适当增施氮肥和增加播种量;施氮量最宜在 225 kg/hm2 左右,能兼顾产量、成本和绿色环保;播种量6.00 kg/hm2 左右为宜,过高会导致减产.
Abstract
To explore the green and efficient cultivation technology of late direct sowing of rapeseed in Jinhua area,new variety Yueyou 1203 was selected.We designed 6 nitrogen application amounts(0,135,180,225,270,315 kg/hm2)and 6 sowing amount(3.00,4.50,6.00,7.50,9.00,10.50 kg/hm2)to research the suitable sowing amount and nitrogen application of Yueyou 1203.Results showed that with the in-crease of nitrogen application,Yueyou 1203 sown in November 18 showed increasing trends in plant height,stem diameter,branch site,main inflorescence length,branching number,effective pods per plant and filled grains per pod.1 000-grain weight showed no significant changes,yield firstly enhanced and then decreased,6.00 kg/hm2 sowing amount had the highest yield.Thus,Yueyou 1203 under late sowing in Jinhua area should enhance nitrogen fertilizer and sowing amount.Nitrogen application amount should be at about 6.00 kg/hm2,which could balance yield,cost and green environmental protection.Sowing amount should be at about 225 kg/hm2,higher sowing amount could lead to yield de-crease.
关键词
施氮量/迟播/播种量/越优1203Key words
Nitrogen application amount/Late sowing/Sowing amount/Yueyou 1203引用本文复制引用
出版年
2023
国家科技期刊平台
NSTL
维普
万方数据