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

作　　者：张翯 施佳炜 王蓉 金成兵 ZHANG He;SHI Jia-wei;WANG Rong(Jinhua Agricultural Technology Extension and Seed Management Center,Jinhua,Zhejiang 321000)

机构地区：[1]金华市农业技术推广与种子管理中心,浙江金华321000

出　　处：《安徽农业科学》2023年第24期35-37,共3页Journal of Anhui Agricultural Sciences

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/hm^(2))和6个播种量(3.00、4.50、6.00、7.50、9.00、10.50 kg/hm^(2)),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/hm^(2)施氮量下产量达到最大值,但与施氮量225、270 kg/hm^(2)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/hm^(2)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/hm^(2)左右,能兼顾产量、成本和绿色环保;播种量6.00 kg/hm^(2)左右为宜,过高会导致减产。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/hm^(2))and 6 sowing amount(3.00,4.50,6.00,7.50,9.00,10.50 kg/hm^(2))to research the suitable sowing amount and nitrogen application of Yueyou 1203.Results showed that with the increase 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.1000-grain weight showed no significant changes,yield firstly enhanced and then decreased,6.00 kg/hm^(2) 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/hm^(2),which could balance yield,cost and green environmental protection.Sowing amount should be at about 225 kg/hm^(2),higher sowing amount could lead to yield decrease.

关 键 词：施氮量 迟播 播种量 越优1203 

分 类 号：S634.3[农业科学—蔬菜学]