Interaction of different irrigation strategies and soil textures on the nitrogen uptake of field grown potatoes
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Interaction of different irrigation strategies and soil textures on the nitrogen uptake of field grown potatoes. / Ahmadi, S.H.; Andersen, M.N.; Lærke, P.E.; Plauborg, Finn; Sepaskhah, A.R.; Jensen, Christian Richardt; Hansen, Søren.
In: International Journal of Plant Production, Vol. 5, No. 3, 2011, p. 263-274.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Interaction of different irrigation strategies and soil textures on the nitrogen uptake of field grown potatoes
AU - Ahmadi, S.H.
AU - Andersen, M.N.
AU - Lærke, P.E.
AU - Plauborg, Finn
AU - Sepaskhah, A.R.
AU - Jensen, Christian Richardt
AU - Hansen, Søren
PY - 2011
Y1 - 2011
N2 - Nitrogen (N) uptake (kg ha-1) of field-grown potatoes was measured in 4.32 m2 lysimeters that were filled with coarse sand, loamy sand, and sandy loam and subjected to full (FI), deficit (DI), and partial root-zone drying (PRD) irrigation strategies. PRD and DI as water-saving irrigation treatments received 65% of FI after tuber bulking and lasted for six weeks until final harvest. Results showed that the irrigation treatments were not significantly different in terms of N uptake in the tubers, shoot, and whole crop. However, there was a statistical difference between the soil textures where plants in the loamy sand had the highest amount of N uptake. The interaction between irrigation treatments and soil textures was significant, and implied that under non-limiting water conditions, loamy sand is the suitable soil for potato production because plants can take up sufficient amounts of N and it could potentially lead to higher yield. However, under limited water conditions and applying water-saving irrigation strategies, sandy loam and coarse sand are better growth media because N is more available for the potatoes. The simple yield prediction model was developed that could explains ca. 96% of the variations of fresh tuber yield based on the plant evapotranspiration (ET) and N uptake in the tuber or whole crop.
AB - Nitrogen (N) uptake (kg ha-1) of field-grown potatoes was measured in 4.32 m2 lysimeters that were filled with coarse sand, loamy sand, and sandy loam and subjected to full (FI), deficit (DI), and partial root-zone drying (PRD) irrigation strategies. PRD and DI as water-saving irrigation treatments received 65% of FI after tuber bulking and lasted for six weeks until final harvest. Results showed that the irrigation treatments were not significantly different in terms of N uptake in the tubers, shoot, and whole crop. However, there was a statistical difference between the soil textures where plants in the loamy sand had the highest amount of N uptake. The interaction between irrigation treatments and soil textures was significant, and implied that under non-limiting water conditions, loamy sand is the suitable soil for potato production because plants can take up sufficient amounts of N and it could potentially lead to higher yield. However, under limited water conditions and applying water-saving irrigation strategies, sandy loam and coarse sand are better growth media because N is more available for the potatoes. The simple yield prediction model was developed that could explains ca. 96% of the variations of fresh tuber yield based on the plant evapotranspiration (ET) and N uptake in the tuber or whole crop.
KW - Former LIFE faculty
KW - potato
KW - nitrogen uptake
KW - partial root-zone drying irrigation
KW - deficit irrigation
KW - full irrigation
KW - soil texture
M3 - Journal article
VL - 5
SP - 263
EP - 274
JO - International Journal of Plant Production
JF - International Journal of Plant Production
SN - 1735-6814
IS - 3
ER -
ID: 33250089