不同叶面肥对油茶幼苗的肥效研究  

Study on the Fertilizer Efficiency of Different Leaf Fertilizers on Camellia oleifera Seedlings

作　　者：韦海 李智华 冯俊源 WEI Hai;LI Zhi-hua;FENG Jun-yuan(State-owned Bobai Forest Farm,Bobai,Guangxi 537600)

机构地区：[1]广西壮族自治区国有博白林场,广西博白537600

出　　处：《安徽农业科学》2024年第17期149-151,155,共4页Journal of Anhui Agricultural Sciences

摘　　要：以广西国有博白林场2年生油茶幼苗为研究对象,设置不同氮、磷、钾及微量元素浓度配比及空白对照处理,测定嫁接幼苗期生长指标及根茎叶各部位营养元素含量,研究不同叶面肥对油茶幼苗生长及养分吸收的特征。结果表明,不同叶面肥处理对油茶苗木营养生长有显著影响,叶面肥对油茶幼苗有显著的肥效作用,处理(7)的叶片净增量比对照增幅最高,达47.16%。处理(8)的氮元素含量最多,比对照提高170.89%。在微量元素方面,处理(8)比对照处理的镁含量增幅最高,达101.47%。油茶苗期对养分的需求规律表现为N>K>P。表明当氮磷钾的比例在10∶15∶6、喷施浓度在2.5%时,与对照比较能够显著促进幼苗生长。Taking 2-year-old Camellia oleifera seedlings from the state-owned Bobai Forest Farm in Guangxi as the research object,different concentrations of nitrogen,phosphorus,potassium,and trace elements were used to determine the growth indicators and nutrient content of root,stem,and leaf parts during the grafting seedling stage.The characteristics of different leaf fertilizers on the growth and nutrient absorption of Camellia oleifera seedlings were studied.The results showed that different foliar fertilizer treatments had a significant impact on the nutritional growth of Camellia oleifera seedlings,and foliar fertilizer had a significant fertilizer effect on Camellia oleifera seedlings.Treatment⑦had the highest increase in net leaf growth compared to the control,reaching 47.16%.Treatment⑧had the highest nitrogen content,which increased by 170.89%compared to the control.In terms of trace elements,treatment⑧showed the highest increase in magnesium content compared to the control,with an increase of 101.47%.The demand pattern for nutrients during the seedling stage of Camellia oleifera was N>K>P.Research had shown that when the ratio of nitrogen,phosphorus,and potassium was 10∶15∶6 and the spraying concentration was 2.5%,it can significantly promote the growth of seedlings compared to the control.

关 键 词：油茶 叶面肥 生长 养分 

分 类 号：S794.4[农业科学—林木遗传育种]