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Study of the Dry Matter Accumulation and Nutrients Uptake Trend of Lycium barbarum in Qaidam of Qinghai(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年09
Page:
127-132
Research Field:
Publishing date:

Info

Title:
Study of the Dry Matter Accumulation and Nutrients Uptake Trend of Lycium barbarum in Qaidam of Qinghai
Author(s):
LI Yue-mei1; 2 ; YANG Wen-hui1; 2 ; Talingewa1; 2 ; GAO Yu-ting1; 2
(1.Soil and Fertilizer Institute，Qinghai Academy of Agricultural and Forestry Science，Xining,Qinghai 810016；2.Xinning Scitific Observing and Experimental Station of Agro-environment，Ministry of Agriculture，P.R.China，Xining,Qinghai 810016)
Keywords:
Qaidam area; Lycium barbarum; dry matter; nutrients uptake; drip irrigation
PACS:
S 793.9
DOI:
10.11937/bfyy.201509036
Abstract:
In order to understand the rules of the nutrients uptake trend under the drip irrigation on Lycium barbarum，and to provide the guide for balance fertilization in Qaidam of Qinghai.The“Ningqi No.5”，which planted in Qaidam area widely，was selected as the research object.The field experiment was carried out to investigate the influence of nitrogen，phosphorus and potassium fertilizers on the dry matter accumulation，dry berry yields，the absorption and accumulation of N，P and K for different parts of Lycium barbarum in Delinha city，Qinghai province.The results showed that the process of dry matter accumulation in the whole growing period of Lycium barbarum could be described by and ‘S’ shape.The phase from full berry period to the autumn berry period was critical for dry matter accumulation；the rate had reached a peak.The proportion of dry matter accumulation rates of the leaves ranged from 77.5% to 6.64% of the total in different periods.Firstly，nitrogen was the most important nutrients limit factor，next was phosphorus，and the last was potassium.The amounts of N，P2O5，and K2O required by Lycium barbarum“Ningqi No.5”for producing every 100 kg dry berry were 11.2 kg，2.2 kg and 6.7 kg.New branched and leaves grower current year were nitrogen，phosphorus and potassium nutrient priority assigned area.

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Last Update: 2015-08-02