双低油菜施硼对土壤氮磷钾硼含量的影响  

Effect of Boric Fertilizer in Double low Repe Field on the Contents of N.P.K and B of Soils

作　　者：周可金[1,2,3] 孙永玲[1,2,3] 郭高[1,2,3] 马友华[1,2,3] 

机构地区：[1]安徽农业大学农学系 [2]安徽省农科院作物研究所 [3]安徽农业大学土化系

出　　处：《安徽农业科学》1997年第2期142-144,共3页Journal of Anhui Agricultural Sciences

基　　金：安徽省自然科学基金

摘　　要：研究了不同施硼水平与优质双低油菜不同生育时期土壤中Ｎ、Ｐ、Ｋ和Ｂ含量的变化关系。结果表明，在油菜苗期和盛花期，土壤含Ｎ量随施Ｂ量增加呈先降后升再降的趋势；蕾薹期土壤含Ｎ量随施Ｂ量增加而先降后升，土壤含Ｋ量相反；成熟期土壤含Ｎ、Ｋ量随施Ｂ量增加而增加。在油菜苗期和蕾薹期，土壤含Ｐ量随施Ｂ量增加而增加；盛花期却呈现先降后升的趋势；成熟期又相反。在油菜苗期，土壤含Ｋ量随施Ｂ量增加而减小，盛花期却相反。在油菜各个生育时期，土壤含Ｂ量均随施Ｂ量的增加而增大，且随着生育期的推移，土壤含Ｂ量逐渐下降。The study of the relations between different boric fertilizer levels and the contents of N.P.K and B of soils in four growth stages of double low Rape was conducted.The results showed that the Nitrogen content of soils began to drop,then to increase and at last to drop again during the stages of seedling and flower as the increase of boric fertilizer levels,In stem eongation stage as the increase of boric fertilizer levels.the Nitrogen content of soils began to drop then to keep a trend of increase.The contents of N and K of soils were going up as the increase of boric fertilizer levels in ripening stage.So was the content of P of soils in both seedling and stem eongation stages.Along the increase of boric fertilizer levels,the content of P of soils began to drop,but it had a increase at last in flowering stage.The content of K of soils droped along the increase of boric fertilizer levels in seedling stage.The content of B of soils in all stages increased along the increase of boric fertilizer levels.

关 键 词：双低油菜 营养元素 硼肥 施肥量 甘蓝型油菜 

分 类 号：S565.406.2[农业科学—作物学]