|Table of Contents|

Dynamics of Phosphorus Content of Jujube Plants by Different Potassium Application Amount

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年19
Page:
54-60
Research Field:
Publishing date:

Info

Title:
Dynamics of Phosphorus Content of Jujube Plants by Different Potassium Application Amount
Author(s):
SONG Sansan1; 2; ZHENG Qiangqing3; ZHI Jinhu1; 2; SHI Xueguang1; LI Tianle1; 2; LI Shibo1; 2
(1.College of Plant Science,Tarim University,Alar,Xinjiang 843300;2.The Research Center of Oasis Agricultural Resources and Environment in Sourthern Xinjiang,Tarim University,Alar,Xinjiang 843300;3.Xinjiang Academy of Agricultural Sciences,Shihezi,Xinjiang 832000)
Keywords:
jujube; potassium fertilizer; phosphorus; organs; distribution
PACS:
-
DOI:
10.11937/bfyy.20210012
Abstract:
Taking four-year-old direct seeding and dense planting jujube as the experimental material,the changes of available phosphorus content and distribution in different organs of jujube were studied by applying different rates of potassium fertilizer，in order to provide basis of potassium fertilizer application rate of jujube in southern Xinjiang.The results showed that the change trend of phosphorus content in various organs of the plant was different with the increasing of potassium application rate in each growth period.Among them,the total phosphorus content of each organ in flowering and fruit setting stage was significantly higher than that in other stages;in the early stage of leaf development,there was a very significant positive correlation between different potassium application rates and the total phosphorus content of jujube head branch (r=0.982 7**),and at this time,the main supply object of phosphorus was the root,while a large amount of phosphorus was transported to jujube hanging and leaves in flowering,fruit setting and mature stages.In conclusion,there was no significant effect on phosphorus absorption in different organs of jujube when the potassium application rate was 225-450 kg?hm-2,but excessive potassium application (675 kg?hm-2) could inhibit phosphorus absorption in different organs of jujube.

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Last Update: 2022-01-04