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Original research article

Growth and Phosphorous Absorption Rate of Red Pepper as Affected by Top Dressing Applications of Phosphorus Fertilizer in Different Cropping System
Hyo-Jung Choi1*
,
Byung-Koo Ahn1
,
Do-Young Ko1
,
Hyo-Jin Kim1
,
Hyong-Gwon Chon2
,
Ye-Jin Lee3
,
Seok-In Yun4
1Researcher, Division of Agricultural Environment, JBARES
2Senior Researcher, Division of Agricultural Environment, JBARES
3Researcher, National Institute of Agricultural Sciences, Rural Development Administration
4Associate Professor, Department of Bio-Environmental Chemistry and Institute of Life Science and Natural Resources, Wonkwang University
* Corresponding Author
31 August 2020. pp. 323-334
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Abstract

An experiment was conducted to study the effect of top dressing application of Phosphorus (P) fertilizer on the growth and P absorption rate of red pepper in different cropping systems of the upland. P fertilizer was applied with no treatment as control (CON), basal dressing application (BDA), 2 times-split of top dressing applications (2-TDA) and 3 times-split of top dressing applications (3-TDA). Red peppers were grown for 110 days and soil characteristics and crop growth were investigated every 20 days. Dry matter yield of red pepper significantly increased at the 2-TDA and 3-TDA but decreased at the CON and BDA due probably to the decrease or increase in available P. In particular, at 3-TDA there was an increase in growth and P absorption rate of red pepper. The fruit dry matter weight of red pepper receiving 3-TDA was 961.7 kg 10a-1, which was significantly higher than those receiving CON and BDA in Rainproof cultivation. In case of the Rainproof cultivation, we found out both P fertilization use effect and top dressing applications effect because there was low available P content of soil used in the experiment in comparison other cultivation type. Therefore, considering the dual goal of optimum crop growth and maximum P distribution instead of immobilization with soil, this study suggests that a testing of a site-specific proper application method of P including top dressing applications is prerequisite to achieving optimum agricultural productivity while minimizing nutrition quality misuse.

Uptake of P by red pepper plants after 110 days of cultivation.
Cultivation type Treatment P uptake
110DATᚋ
(kg 10a-1)
Protected cultivation CONᚌ 1.19ab†
BDA 1.01b
2-TDA 1.14ab
3-TDA 1.51a
Rainproof cultivation CONᚍ 0.82b
BDA 1.18b
2-TDA 1.36b
3-TDA 1.91a
Open field cultivation CONᚎ 0.77b
BDA 1.08a
2-TDA 0.60bc
3-TDA 0.55c

110DATᚋ means day after red pepper plants cultivation

CONᚌ: no fertilization as control, BDA: aplication with P at 1.3 kg 10a-1, 2-TDA: aplication with P at 0.65, 0.33, 0.33 kg 10a-1, 3-TDA: aplication with P at 0.65, 0.22, 0.22, 0.22 kg 10a-1 in Protected cultivation

CONᚍ: no fertilization as control, BDA: aplication with P at 3.7 kg 10a-1, 2-TDA: aplication with P at 1.85, 0.93, 0.93 kg 10a-1, 3-TDA: aplication with P at 1.85, 0.62, 0.62, 0.62 kg 10a-1 in Rainproof cultivation

CONᚎ: no fertilization as control, BDA: aplication with P at 3.8 kg 10a-1, 2-TDA: aplication with P at 1.9, 0.95, 0.95 kg 10a-1, 3-TDA: aplication with P at 1.9, 0.63, 0.63, 0.63 kg 10a-1 in Open field cultivation

†Mean values(n=3), with different lowercase letters indicating significant difference at p=0.05 by Duncan's multiple range test.

Keywords
Absorption rate
Phosphorus
Red pepper
Temperature
Top dressing applications

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Information
  • Publisher :Korean Society of Soil Science and Fertilizer
  • Publisher(Ko) :한국토양비료학회
  • Journal Title :Korean Journal of Soil Science and Fertilizer
  • Journal Title(Ko) :한국토양비료학회 학회지
  • Volume : 53
  • No :3
  • Pages :323-334
  • Received Date : 2020-08-10
  • Revised Date : 2020-08-23
  • Accepted Date : 2020-08-25
  • DOI :https://doi.org/10.7745/KJSSF.2020.53.3.323
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