|Table of Contents|

Effects of Combined Application of Nitrogen Fertilizer and Polyglutamic Acid on the Growth and Nutrient Absorption of Capsicum anmuum L.

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年15
Page:
49-56
Research Field:
Publishing date:

Info

Title:
Effects of Combined Application of Nitrogen Fertilizer and Polyglutamic Acid on the Growth and Nutrient Absorption of Capsicum anmuum L.
Author(s):
YANG Qiangui1PENG Hailan1XU Lingjie2WANG Jianjian1
(1.College of Life Sciences,Guizhou University/Institute of Agro-bioengineering/Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education),Guiyang,Guizhou 550025;2.Guizhou Tobacco Company,China National Tobacco Corporation,Guiyang,Guizhou 550000)
Keywords:
nitrogen fertilizerpolyglutamic acidpeppergrowthnutrient absorption
PACS:
S 143.8
DOI:
10.11937/bfyy.20250088
Abstract:
Taking the ‘Beike 919’ pepper as the experimental material,a pot experiment was conducted to study the effects of applying different levels of nitrogen fertilizer while spraying polyglutamic acid on the growth,yield,and nutrient absorption of peppers,in order to provide a reference for using polyglutamic acid to improve the nitrogen fertilizer utilization efficiency of chili peppers.The results showed that compared with the control,the application of different levels of nitrogen fertilizer (3.5 g per plant/5.0 g per plant) alone and the combination of different nitrogen fertilizer levels and polyglutamic acid (450 mg·L-1) significantly improved the plant height,stem thickness,leaf morphology,root morphology,chlorophyll content,biomass,single plant yield,as well as the nitrogen content and root iron and zinc content of peppers.And overall,the combination of 5 g·plant-1 nitrogen fertilizer and polyglutamic acid (450 mg·L-1) showed the best effect.In conclusion,the combination of high nitrogen fertilizer and polyglutamic acid can improve the utilization efficiency of nitrogen fertilizer in peppers,promote their growth,increase their yield,and enhance their nutrient absorption.

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Last Update: 2025-08-18