不同化肥施用量对花溪芜菁甘蓝种子产量的影响

为加快国审牧草新品种的应用推广速度,采用二次回归正交旋转组合设计方法,研究N、P、K 3因素5水平对花溪芜菁甘蓝种子产量及经济性状的影响。结果表明：建立了肥料因子与种子产量之间的关系数学模型;经该模型分析,施尿素112.4 kg/hm^2＋钙镁磷肥123 kg/hm^2＋硫酸钾96.4 kg/hm^2时,种子产量最高,为2918.06 kg/hm^2,产达值291 806元/hm^2。各因素对种子产量的作用以磷肥最大,氮肥其次,影响较小的是钾肥。经济性状对种子产量的贡献大小为主花序长〉有效分枝数〉株高〉单株角果数〉单角种子数〉千粒重,提高主花序长和有效分枝数可最有效地提高花溪芜菁甘蓝的种子产量...

Full description

Saved in:
Bibliographic Details
Published in西南农业学报 Vol. 29; no. 4; pp. 842 - 846
Main Author 王应芬 李娟 雷霞 牟琼 杨义成
Format Journal Article
LanguageChinese
Published 贵州省草地技术试验推广站,贵州贵阳,550006%贵州省草业研究所,贵州贵阳,550006 2016
Subjects
农艺性状
数学模型
施肥处理
种子产量
花溪芜菁甘蓝
数学模型
Brassica hapobrassica
农艺性状
Seed yield
种子产量
施肥处理
花溪芜菁甘蓝
Agronomic trait
Application treatment
Mathematical model
Online AccessGet full text
ISSN1001-4829
DOI10.16213/j.cnki.scjas.2016.04.021

Cover

More Information
Summary:为加快国审牧草新品种的应用推广速度,采用二次回归正交旋转组合设计方法,研究N、P、K 3因素5水平对花溪芜菁甘蓝种子产量及经济性状的影响。结果表明：建立了肥料因子与种子产量之间的关系数学模型;经该模型分析,施尿素112.4 kg/hm^2＋钙镁磷肥123 kg/hm^2＋硫酸钾96.4 kg/hm^2时,种子产量最高,为2918.06 kg/hm^2,产达值291 806元/hm^2。各因素对种子产量的作用以磷肥最大,氮肥其次,影响较小的是钾肥。经济性状对种子产量的贡献大小为主花序长〉有效分枝数〉株高〉单株角果数〉单角种子数〉千粒重,提高主花序长和有效分枝数可最有效地提高花溪芜菁甘蓝的种子产量,其次是提高株高。
Bibliography:WANG Ying-fen , LI Juan , LEI Xia , MOU Qiong , YANG Yi-eheng （1. Guizhou Station for Popularizing Pasture Technology, Dushan, Guizhou Guiyang 550006, China; 2. Guizhou Sericultural Institute Guizhou Guiyang 550006, China）
Brassica hapobrassica; Agronomic trait; Seed yield; Mathematical model; Application treatment
The effect of different N,P and K combination levels on seed yield and economic traits of Brassica hapobrassica was studied by the quadratic regression rotation combination design to speed up application and popularization speed of new pasture varieties. Results： The mathematic model between fertilizer factor and seed yield is successfully established. The highest seed yield and output value are 2918.06 kg / hm^2 and 291 806. 00 Yuan / hm^2 under the application condition of 112. 4 kg / hm^2 urea ＋ 123 kg / hm^2 calcium magnesium phosphate＋ 96. 4 kg / hm^2 potassium sulphate respectively. The effect of fertilizer factors on seed yield is P N K. The contribution of different economic traits on seed yi
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2016.04.021