|Table of Contents|

Effects of Applying Inorganic Fertilizer on Kiwifruit Tissue Organs and Orchard Soil

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年2
Page:
94-101
Research Field:
Publishing date:

Info

Title:
Effects of Applying Inorganic Fertilizer on Kiwifruit Tissue Organs and Orchard Soil
Author(s):
SUN Fengxia1; ZHANG Xiaomin2; CHEN Defu3; ZHANG Tinghua4; WANG Lianchun1
(1.School of Forestry，Southwest Forestry University/Key Laboratory of National Forestry and Grassland Administration for Biodiversity Conservation in Southwest China，Kunming，Yunnan 650224；2.Yunnan Hexu Agricultural Development Co.Ltd.，Kunming，Yunnan 650224；3.Yunnan Yuanpan Fruit Industry Co.Ltd.，Honghe，Yunnan 661400；4.Sinan County Immigration Bureau，Tongren，Guizhou 565199)
Keywords:
kiwifruit; mineral elements; absorption; distribution
PACS:
S 663.4
DOI:
10.11937/bfyy.20242357
Abstract:
Seven-year-old ‘Guichang’ kiwifruit was used as the test material,the effects of different fertilization treatments on soil nutrients and nitrogen，phosphorus，potassium，calcium，and magnesium content in kiwifruit plants were studied by using a proportional fertilization method，in order to provide reference for effectively improving kiwifruit yield，quality，and rational fertilization management.The results showed that under N2 treatment，the nitrogen content of tissues and organs (leaves，branches，and roots) and soil (0-20，20-40，40-60 cm) reached their maximum values，which were 2 511.38，1 689.30，3 569.51，20.54，23.17,22.12 mg·kg-1，respectively.Under the P3 treatment conditions，the available phosphorus content in tissues and organs reached its maximum values，which were 62.97，15.73 mg·kg-1，and 38.12 mg·kg-1，respectively.The available phosphorus in the middle and deep soil reaches its maximum at P4，while the content in the surface soil was highest at P3.During K3 treatment，the maximum levels of available potassium in tissues and organs were 3 649.67，1 817.08 mg·kg-1，and 1 934.28 mg·kg-1，respectively.The content of surface and deep soil was highest in K2 treatment.Under Ca4 treatment，the exchangeable calcium content in tissues，organs，and soil was optimal，at 21.48，7.80，8.67 g·kg-1，and 14.06，12.94 cmol·kg-1，and 12.38 cmol·kg-1，respectively.When treated with Mg3，the exchangeable magnesium content in tissues and organs was optimal，at 7.04，3.98 g·kg-1，and 4.50 g·kg-1，respectively.The exchangeable magnesium content in the middle soil was highest under Mg3 treatment，while the surface and deep soil were optimal under Mg4 treatment.The accumulation of nutrients in the soil showed an inverted Vshaped pattern，while the nutrients in kiwifruit tissues and organs mainly accumulate in the leaves and roots.The demand order of kiwifruit for the five elements was potassium>nitrogen>phosphorus>calcium>magnesium，and the optimal fertilization amount was determined to be N2K3K3Ca4Mg3.

References:

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Last Update: 2025-02-08