[1]王世伟,潘存德,胡珍珠,等.特定土壤条件下“新温185”核桃根施氮磷钾肥细根根长密度效应研究[J].北方园艺,2019,43(06):54-59.[doi:10.11937/bfyy.20182341]
　WANG Shiwei,PAN Cunde,HU Zhenzhu,et al.Effects of Root Fertilizing With Nitrogen,Phosphorus,and Potassium on the Fine Root Length Density of Juglans regia ‘Xinwen185’ Under Specific Soil Nutrient Conditions[J].Northern Horticulture,2019,43(06):54-59.[doi:10.11937/bfyy.20182341]
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特定土壤条件下“新温185”核桃根施氮磷钾肥细根根长密度效应研究

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 43卷 期数: 2019年06 页码: 54-59 栏目: 出版日期: 2019-03-30
Title:
Effects of Root Fertilizing With Nitrogen,Phosphorus,and Potassium on the Fine Root Length Density of Juglans regia ‘Xinwen185’ Under Specific Soil Nutrient Conditions
作者:
王世伟; 潘存德; 胡珍珠; 赵善超; 李星; 郭家欢
（新疆农业大学 林学与园艺学院，新疆教育厅干旱区林业生态与产业技术重点实验室，新疆 乌鲁木齐 830052）
Author(s):
WANG Shiwei; PAN Cunde; HU Zhenzhu; ZHAO Shanchao; LI Xing; GUO Jiahuan
(College of Forestry and Horticulture,Xinjiang Agricultural University/Key Laboratory of Forestry Ecology and Industry Technology in Arid Region,Education Department of Xinjiang,Urumqi,Xinjiang 830052)
关键词:
“新温185”; 核桃; 土壤养分; 细根根长密度; 效应
Keywords:
Juglans regia ‘Xinwen185’; walnut; soil nutrient; fine root length density; effect
DOI:
10.11937/bfyy.20182341
文献标志码:
A
摘要:
以“新温185”核桃（Juglans regia‘Xinwen185’）为试验材料，通过“3414”肥料效应田间试验，采用根钻取样法和图像扫描分析法，研究了特定土壤养分条件下根施氮（N）、磷（P）、钾（K）肥对“新温185”核桃细根根长密度的影响，以期为“新温185”核桃土壤养分的科学管理提供依据。结果表明：“新温185”核桃细根根长密度（C）的正平方根（Sqrt C）同P肥与K肥的交互作用（P×K）、N肥的施用量（纯氮量，N）、N肥施用量的自乘（N2）存在极显著（P=0.000）的线性相关关系，即Sqrt 〖AKC^〗=0.221-0.084P×K+0.067N-0.025N2。特定土壤条件下（碱解N 77.7 mg?kg-1，有效P 14.3 mg?kg-1，速效K 77.3 mg?kg-1），根施P、K肥对核桃的细根根长密度效应不显著，P、K肥的交互作用对细根根长密度存在负效应，当N肥施用量（纯量）小于1.34 kg?株-1时，对“新温185”核桃细根根长密度存在正效应，反之则存在负效应。
Abstract:
uglans regia ‘Xinwen185’ trees were used as test material.Based on the field experiment of ‘3414’ fertilizer effect,the root drilling sampling and the image scanning analysis method were used to study the effects of root fertilizing with nitrogen (N),phosphorus (P) and potassium (K) on the fine root length density of under specific soil nutrient conditions,in order to provide a scientific basis for the management of soil nutrients of Juglans regia ‘Xinwen185’.The results showed that the square root (Sqrt C) of the fine root length density of walnut (C) had a highly significantly linear relationship with the mutual function of P and K fertilizers (P×K),the application amount of N fertilizer (pure nitrogen,N),and its square.The linear equation was Sqrt 〖AKC^〗=0.221-0.084P×K+ 0.067N-0.025N2.Under specific soil conditions (alkali solution N 77.7 mg?kg-1,effective P 14.3 mg?kg-1,available K 77.3 mg?kg-1),P and K fertilizer had no significant effect on the fine root length density of Juglans regia ‘Xinwen185’,but their interaction (P×K) had negative effects on fine root length density.When the amount of N fertilizer (pure nitrogen) was less than 1.34 kg per plant,there was a positive effect on the fine root length density of Juglans regia ‘Xinwen185’;otherwise there was a negative effect.

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备注/Memo

第一作者简介：王世伟（1984-），男，新疆乌鲁木齐人，博士，副教授，研究方向为林木栽培与生理。E-mail：wsw850204@163.com.责任作者：潘存德（1964-），男，新疆奇台人，博士，教授，研究方向为森林生态与经营。E-mail：pancunde@163.com.基金项目：新疆维吾尔自治区自然科学基金资助项目（2015211B012）。收稿日期：2018-09-05

更新日期/Last Update: 2019-04-17