摘要
【目的】通过对大兴安岭地区笃斯越橘叶片矿质元素的研究,为笃斯越橘人工抚育、栽培中合理施肥提供理论依据。【方法】以4种生境中的笃斯越橘为试材,通过测定果实成熟期叶片中N、P、K、Ca、Mg、Fe、Mn、Cu和Zn的含量及产量,制定笃斯越橘叶片矿质元素含量适宜值,并应用DOP法进行营养诊断。【结果】(1)水湿地生境中笃斯越橘的产量高,林下疏林中的产量中等,而林缘坡地中的产量低。(2)叶片中N的适宜值为17.70~19.67 g·kg^-1,P的适宜值为3.56~4.60 g·kg^-1,K的适宜值为5.22~6.13 g·kg^-1,Ca的适宜值为3.13~3.88 g·kg^-1,Mg的适宜值为1.90~2.27 g·kg^-1,Fe的适宜值为109.19~158.85 mg·kg^-1,Mn的适宜值为262.05~311.14 mg·kg^-1,Cu的适宜值为5.44~6.42 mg·kg^-1,Zn的适宜值为17.33~24.87 mg·kg^-1。(3)高产区的笃斯越橘叶片养分平衡状况优于中低产区,且高产区笃斯越橘叶片矿质养分亏缺程度较高,而中、低产区域矿质养分则过多盈余。【结论】大兴安岭地区高产区域的笃斯越橘养分平衡状况优于中低产区域。在适当补充肥料的基础上各区均具有一定的产量提升空间。
【Objective】Leaf is very sensitive to mineral element supply,and the contents of mineral elements in the leaf represent the utilization of nutrients of the tree.Leaf nutrition diagnosis is an effective means to evaluate the nutrition status of the tree and provides an important basis to understand the fertilizer requirement of the tree.In this study,the theoretical basis for rational fertilization scheme for the cultivation of V.uliginosum was provided by determining suitable value of mineral element contents in the leaves and nutrition diagnosis was implemented to the orchards in the Greater Khingan Mountains.【Methods】The study was carried out in the Greater Khingan Mountains areas in China.V.uliginosum grown in four types of biotopes(meadow bog with soil layer,meadow bog without soil layer,undergrowth sparse forest,and slope land of forest edge)were used as the test the materials.A total of 66 samples of leaves and fruit were collected during the ripening stage in August 2018.Total nitrogen(N)in the leaf was analyzed using an elemental analyzer(EURO EA3000,Italy).Samples for total phosphorus(P)and potassium(K)analysis were digested using H2SO4-H2O2 and determined using an ultraviolet visible spectrophotometer(Thermo Fisher Evolution300,USA)and an atomic absorption spectrophotometer(Thermo Fisher 3500,USA),respectively.Calcium(Ca),magnesium(Mg),manganese(Mn),iron(Fe),copper(Cu)and zinc(Zn)were determined using an atomic absorption spectrophotometer after digestion using HNO3-HClO4(3∶1).Fruit yield of per unit area was collected,and the high-yield,middle-yield and low-yield regions were determined using K-means cluster analysis of SPSS 20.0.The suitable mineral element contents in the leaf of V.uliginosum were determined by probability grading method and the high-yield area method.Nutrient balance condition in the leaves of trees grown in the high-,middle-and low-yield regions was quantified by the nutrient imbalance index(NBIm),and the degree of mineral nutrient deficiency and the order of fertilizer re
作者
张继舟
李云影
袁磊
吕品
于志民
王立民
张悦
ZHANG Jizhou;LI Yunying;YUAN Lei;LüPin;YU Zhimin;WANG Limin;ZHANG Yue(College of Resources and Environmental Science,Northeast Agricultural University,Harbin 150030,Heilongjiang,China;Institute of Natural Resources and Ecology,Heilongjiang Academy of Sciences/National and Provincial Joint Engineering Laboratory of Wetlands and Ecological Conservation,Harbin 150040,Heilongjiang,China)
出处
《果树学报》
CAS
CSCD
北大核心
2019年第9期1161-1170,共10页
Journal of Fruit Science
基金
国家十三五重点研发计划(2016YFC0500300)
黑龙江省科学基金面上项目(C2017060)
关键词
笃斯越橘
大兴安岭地区
叶片矿质元素
不同生境
营养诊断
Vaccinium uliginosum L.
The Greater Khingan Mountains
Leaf mineral elements
Different biotopes
Nutrition diagnosis
