氮肥对核桃楸育苗质量的影响  

The Effects of Nitrogen Fertilizer on Seedling Quality of Juglans mandshurica

作　　者：沈阳 

机构地区：[1]黑龙江省第三森林调查规划设计院,哈尔滨150001

出　　处：《中国林副特产》2014年第1期16-17,共2页Forest By-product and Speciality in China

基　　金：黑龙江省科技厅攻关专项(GB07B304);黑龙江省森工总局专项(sgzjY2010002)资助

摘　　要：氮元素对植物生长起着非常重要的作用,它是植物体内氨基酸的组成部分、是构成蛋白质的成分,也是植物进行光合作用起决定作用的叶绿素的组成部分。通过对核桃楸1年生苗木的氮肥营养研究,探讨氮肥的合理施肥技术。试验结果表明,30g/m是核桃楸的最优氮施肥量,其苗高、地径、主根长、侧根数最优,为核桃楸育苗提供依据。Nitrogen plays a very important role in plant growth, it is a component of amino acid, protein, it is also part of chlorophyll that play a decisive role in the plant photosynthesis. We discussed the reasonable technology of nitrogen fertilizer through the research of nitrogen nutrition of annual seedlings. The results showed that： the seedling height, ground diameter, root length, number of lateral roots were optimal when the rate of nitrogen fertilizer application was 30g/m. It provided the basis for the cultivation of J. mandshurica seedlings.

关 键 词：核桃楸 育苗 氮肥 苗木质量 

分 类 号：S791.22[农业科学—林木遗传育种]