|Table of Contents|

Effect of Reducing Nitrogen Fertilizer on Pepper GrowingDevelopment in Greenhouse(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年22
Page:
71-75
Research Field:
Publishing date:

Info

Title:
Effect of Reducing Nitrogen Fertilizer on Pepper GrowingDevelopment in Greenhouse
Author(s):
HAN Yingzuo1; SI Pengfei2; WANG Xiujuan1; LOU Chunrong1
1.Institute of Environmental Resources and Plant Nutrition,Liaoning Academy of Agricultural Sciences,Shenyang，Liaoning 110161;2.Opening Laboratory,Liaoning Academy of Agricultural Sciences,Shenyang，Liaoning 110161
Keywords:
reducing nitrogen fertilizer; greenhouse; pepper; growing development
PACS:
-
DOI:
10.11937/bfyy.20171851
Abstract:
Pepper was used as test material,the effects of reducing nitrogen fertilizer(conventional fertilizer with N 225.00 kg?hm-2,reducing nitrogen 15% with N 191.25 kg?hm-2,30% with N157.50 kg?hm-2,45% with N 123.75 kg?hm-2,and no nitrogen) on pepper growing development in greenhouse was studied through the field experiment.The results showed that compared with conventional fertilization,the plant height and stem diameter declined under the treaments of nitrogen reduction；the SPAD value of pepper leaves was highest under 15% nitrogen reduction；the pepper yield under nitrogen reducing 15% was higher than that of conventional treatment,and the pepper yield under nitrogen reducing 30% was slightly lower than that of conventional treatment,but the difference was not significant.15% or 30% reduction of nitrogen could not significantly reduce plant (stem+leaf+fruit) to absorb nitrogen,while pepper nitrogen absorption under 15% nitrogen reduction slightly higher than that of conventional nitrogen treatment.Therefore,nitrogen 191.25 kg?hm-2 could be taken as reference of fertilization under greenhouse,which could ensure the pepper production,and achieve cost efficiency.

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Last Update: 2017-11-22