南方农业学报2017，Vol.48Issue(4)：686-691,6.DOI:10.3969/j.issn.2095-1191.2017.04.020
帕拉英达芒果叶片养分变化规律及营养诊断
Variation rules of nutrition content in Palayinda mango leaves and nutrition diagnosis
摘要
Abstract
[Objective]Variation rules of nutrition content in Palayinda mango leaves was analyzed, in order to provide reference for determining nutrition diagnose indexes and guiding scientific fertilization. [Method]Healthy Palayinda mango trees in well managed and high-yield Palayinda mango gardens in Baoshan, Yunnan were randomly sampled. Contents of nitrogen,phosphorus,potassium,calcium,magnesium and sulfur in the first blade were studied. Appropriate sampling time and nutrition diagnosis indexes for leaf nutrition diagnosis were determined based on annual deviation from mean, coefficient of variation and stability between different years of each nutrition. [Result]Coefficient of variations of nitrogen, calcium, magnesium and sulfur were the smallest in January of 2013-2015, which were 9.46%,22.76%,1.84% and 3.58%respectively. Therefore, January was suitable for sampling for Palayinda mango leaf nutrition diagnosis. The diagnosis in-dexes were as follows: nitrogen 12.68-15.34 g/kg, phosphorus 1.05-1.19 g/kg, potassium 4.88-8.92 g/kg, calcium 14.10-22.40 g/kg, magnesium 2.13-2.21 g/kg and sulfur1.24-1.34 g/kg. [Conclusion]In Baoshan, Yunnan, it is recommended that collecting first blade in January for Palayinda mango leaf nutrition diagnosis.关键词
帕拉英达芒果/叶片/养分含量/营养诊断Key words
Palayinda mango/leaf/nutrient content/nutrition diagnosis分类
农业科技引用本文复制引用
康专苗,姚智,白亭玉,焦淼,王艺蓉,仇海威,林电..帕拉英达芒果叶片养分变化规律及营养诊断[J].南方农业学报,2017,48(4):686-691,6.基金项目
国家公益性行业(农业)科研专项项目(201203092-4-3) （农业）
海南大学中西部计划学科重点领域建设项目(ZXBJH-XK003) （ZXBJH-XK003）
