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Mathias Neumann Andersen

Yield and crop growth of table potato affected by different split-N fertigation regimes in sandy soil

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Yield and crop growth of table potato affected by different split-N fertigation regimes in sandy soil. / Zhenjiang, Zhou; Plauborg, Finn; Liu, Fulai; Kristensen, Kristian; Andersen, Mathias Neumann.

In: European Journal of Agronomy, Vol. 92, No. Januar, 01.01.2018, p. 41-50.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

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Zhenjiang, Zhou ; Plauborg, Finn ; Liu, Fulai ; Kristensen, Kristian ; Andersen, Mathias Neumann. / Yield and crop growth of table potato affected by different split-N fertigation regimes in sandy soil. In: European Journal of Agronomy. 2018 ; Vol. 92, No. Januar. pp. 41-50.

Bibtex

@article{d45605edc8ef4ff582d2cda13badfeb3,
title = "Yield and crop growth of table potato affected by different split-N fertigation regimes in sandy soil",
abstract = "To explore the response of yield, crop growth as well as water and N use efficiency to different fertigation regimes, three years field experiment were carried out. The factors in the experiment comprised five N levels providing 0, 60, 100, 140 and 180 kg N ha(-1), and one real time model (Daisy model)-based N fertilization method, as well as three irrigation levels. Results showed that prolonged N fertigation increased yield consistently but N fertigation should be carried out early so that shoot growth is optimized and prolonged N have sufficient time to take effect on tuber yield accumulation. In all three years, the highest fresh yield and marketable yield was obtained when 180 kg N ha was applied. Compared to the 180 kg N ha(-1) treatment, realtime model-based N fertilization resulted in comparable yield (not different) in all seasons. Nevertheless, model based N fertilization resulted in yield that was significantly lower than the predicted maximum yield across the seasons, implying the necessity to adjust the parameters related to critical N concentration of Daisy model. The economic optimal were 142, 194 and 195 kg N ha(-1) in 2013, 2014 and 2015, respectively. Deficit irrigation did not cause reduced soil water content, ratio vegetation index (RVI) and yield, but irrigation efficiency was increased significantly in 2013.",
keywords = "Daisy model simulation, Deficit irrigation, Denmark, Drip irrigation",
author = "Zhou Zhenjiang and Finn Plauborg and Fulai Liu and Kristian Kristensen and Andersen, {Mathias Neumann}",
year = "2018",
month = jan,
day = "1",
doi = "10.1016/j.eja.2017.10.001",
language = "English",
volume = "92",
pages = "41--50",
journal = "European Journal of Agronomy",
issn = "1161-0301",
publisher = "Elsevier BV",
number = "Januar",

}

RIS

TY - JOUR

T1 - Yield and crop growth of table potato affected by different split-N fertigation regimes in sandy soil

AU - Zhenjiang, Zhou

AU - Plauborg, Finn

AU - Liu, Fulai

AU - Kristensen, Kristian

AU - Andersen, Mathias Neumann

PY - 2018/1/1

Y1 - 2018/1/1

N2 - To explore the response of yield, crop growth as well as water and N use efficiency to different fertigation regimes, three years field experiment were carried out. The factors in the experiment comprised five N levels providing 0, 60, 100, 140 and 180 kg N ha(-1), and one real time model (Daisy model)-based N fertilization method, as well as three irrigation levels. Results showed that prolonged N fertigation increased yield consistently but N fertigation should be carried out early so that shoot growth is optimized and prolonged N have sufficient time to take effect on tuber yield accumulation. In all three years, the highest fresh yield and marketable yield was obtained when 180 kg N ha was applied. Compared to the 180 kg N ha(-1) treatment, realtime model-based N fertilization resulted in comparable yield (not different) in all seasons. Nevertheless, model based N fertilization resulted in yield that was significantly lower than the predicted maximum yield across the seasons, implying the necessity to adjust the parameters related to critical N concentration of Daisy model. The economic optimal were 142, 194 and 195 kg N ha(-1) in 2013, 2014 and 2015, respectively. Deficit irrigation did not cause reduced soil water content, ratio vegetation index (RVI) and yield, but irrigation efficiency was increased significantly in 2013.

AB - To explore the response of yield, crop growth as well as water and N use efficiency to different fertigation regimes, three years field experiment were carried out. The factors in the experiment comprised five N levels providing 0, 60, 100, 140 and 180 kg N ha(-1), and one real time model (Daisy model)-based N fertilization method, as well as three irrigation levels. Results showed that prolonged N fertigation increased yield consistently but N fertigation should be carried out early so that shoot growth is optimized and prolonged N have sufficient time to take effect on tuber yield accumulation. In all three years, the highest fresh yield and marketable yield was obtained when 180 kg N ha was applied. Compared to the 180 kg N ha(-1) treatment, realtime model-based N fertilization resulted in comparable yield (not different) in all seasons. Nevertheless, model based N fertilization resulted in yield that was significantly lower than the predicted maximum yield across the seasons, implying the necessity to adjust the parameters related to critical N concentration of Daisy model. The economic optimal were 142, 194 and 195 kg N ha(-1) in 2013, 2014 and 2015, respectively. Deficit irrigation did not cause reduced soil water content, ratio vegetation index (RVI) and yield, but irrigation efficiency was increased significantly in 2013.

KW - Daisy model simulation

KW - Deficit irrigation

KW - Denmark

KW - Drip irrigation

UR - http://www.scopus.com/inward/record.url?scp=85031090997&partnerID=8YFLogxK

U2 - 10.1016/j.eja.2017.10.001

DO - 10.1016/j.eja.2017.10.001

M3 - Journal article

VL - 92

SP - 41

EP - 50

JO - European Journal of Agronomy

JF - European Journal of Agronomy

SN - 1161-0301

IS - Januar

ER -