Response of four potato cultivars to rate and timing of nitrogen fertilizer

Love, S. L.; Stark, J. C.; Salaiz, Thomas

doi:10.1007/bf02894916

Cited by 56 publications

(44 citation statements)

References 24 publications

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“…It decreased linearly with every incremental dose of N, confirming the findings of Love et al (2005), Kumar et al (2008) and Mozumder et al (2014). Among the cultivars under study, maximum AE N was observed when minimum dose of N was applied.…”

Section: Nitrogen Uptake Efficienciessupporting

confidence: 82%

Production potential of newly released potato (Solanum tuberosum L.) cultivars under different nitrogen levels

et al. 2016

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Field experiments were conducted during rabi seasons of 2011-12, 2012-13, 2013-14 and 2014-15 at C-unit research farm of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal, India to study the effects of different levels of nitrogen on the productivity of newly released potato (Solanum tuberosum L.) cultivars under lower Gangetic plains of West Bengal. The experiment was laid out in a factorial randomized block design with four replications having ten treatment combinations viz. two levels of newly released cultivars (V 1 -Kufri Himalini and V 2 -Kufri Shailja) as factor A and five levels of nitrogen (N 0 -0 kg ha . Thus recently released variety Kufri Himalini, having moderate resistance against late blight, which is a serious problem in the state at present can be a better option for the farmers of the state to raise the potato production. Kufri Himalini produced significantly higher (14.1%) total tuber yield over Kufri Shailja and it was found to be more acceptable to the farmers in terms of production of marketable tuber (> 75 g grade). Grade wise tuber yield of potato was significantly influenced by N levels. Irrespective of cultivars application of 300 kg N ha -1 along with recommended dose of P and K recorded the highest total potato tuber yield (23.55 t ha . Nitrogen fertilization improved the tuber yield of potato by 49.5 to 82.1% over control. Kufri Himalini was more responsive to fertilizer nitrogen than Kufri Shailja as it recorded higher agronomic efficiency

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Section: Nitrogen Uptake Efficienciessupporting

confidence: 82%

Production potential of newly released potato (Solanum tuberosum L.) cultivars under different nitrogen levels

et al. 2016

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“…The relative yields increased when the relative fertilizer rate was within 10%-72%; and for fertilization rates above 72%, the relative yield declined as the fertilizer rate increased. This relationship is similar to that for most potato varieties (Love et al, 2005;Porter and Sisson, 1991) and can be expressed as: y = 0.8902 + 1.4011x -0.9751x 2 (R 2 = 0.7181). At the turning point of 72%, fertigation with 28% less fertilizer increased the yield by 5.9%.…”

Section: Potato Yields Under Different Fertigation Levelssupporting

confidence: 54%

Drip Fertigation Regime for Potato on Sandy Soil

et al. 2017

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To establish the optimum fertilizer rate and propose an appropriate drip fertigation regime for potato (Solanum tuberosum L.) on sandy soil, a two-year field experiment comparing different fertigation levels on potato yield, irrigation water productivity (IWP) and partial fertilizer productivity (PFP) was carried out during 2012–2013. The treatments included five fertigation levels: 10%, 30%, 50%, 70% and 90% of the recommended fertilizer dose of 420:105:495 of N:P:K in kg ha–1 year–1 in 2012; and 10%, 35%, 60%, 85% and 110% of the recommended dose of 390:150:465 of N:P:K in kg ha–1 year–1 in 2013. The recommended fertilizer dose was estimated based on the method of nutrient balance for a target yield of 45.0 Mg ha–1. The soil matric potential at 20 cm depth beneath the emitters was controlled above –25 kPa for drip fertigation. Results showed the highest tuber yield was 38.0 Mg ha–1 for 90%NPK in 2012 and 45.8 Mg ha–1 for 60%NPK in 2013, which was significantly higher than that for 10%NPK. The highest IWP was for 70%NPK in 2012 and 60%NPK in 2013. The highest PFP values were 255.5 kg kg−1 in 2012 and 316.4 kg kg−1 in 2013, recorded in the 10%NPK plots and were significantly higher than for other fertigation treatments. High yield levels of potatoes and both high IWP and PFP could be reached by drip fertigation with 72% of the recommended fertilization dose. Compared with the recommended fertilizer dose, the yield and IWP of 72% NPK increased by 5.9% and 4.7%, respectively. It was possible to make average savings in one season alone of 136, 36 and 152 kg ha–1 N, P2O5 and K2O, respectively. In conclusion, drip fertigation with 72% NPK should be considered optimum for potato production on sandy soils. Each fertilizer amount based on irrigation interval was applied with irrigation quota at 5–6 mm when soil matric potential at soil depths of 20 cm immediately under drip emitters reached –25 kPa. Furthermore, drip fertigation was triggered when 10 consecutive days were without fertigation or rainfall in 24 h exceeded 10 mm.

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“…Maidl et al (2002) also reported the effect of N timing on N rec varied in relation to climatic conditions. Harris (1992), Love et al (2005) and Burton et al (2008) reported that delaying the application of all or part of fertilizer N could result in increased recoveries of applied N by the crop in years presenting wet conditions between planting and hilling and this was attributed to reduced NO 3 leaching and to a lesser extent denitrification.…”

Section: Discussionmentioning

confidence: 99%

Apparent fertilizer nitrogen recovery and residual soil nitrate under continuous potato cropping: Effect of N fertilization rate and timing

Cambouris¹,

Zebarth²,

Nolin³

et al. 2008

Can. J. Soil. Sci.

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Cambouris, A. N., Zebarth, B. J., Nolin, M. C. and Laverdie`re, M. R. 2008. Apparent fertilizer nitrogen recovery and residual soil nitrate under continuous potato cropping: effect of N fertilization rate and timing. Can. J. Soil Sci. 88: 813Á825. Adequate nitrogen (N) fertilization is crucial to optimize yield and quality of potato and also to minimize N environmental losses. Effects of rates and timing of N fertilizer on residual soil nitrate (RSN) [NO 3 -N, 0Á0.7 m], soil solution nitrate (SWN) concentrations and apparent fertilizer nitrogen recovery (N rec ) by potato (Solanum tuberosum L.) tubers were evaluated from 1999 to 2001. Two sites representative of the management zones (MZ) previously delineated by apparent soil electrical conductivity and differing in soil water availability were selected. The MZ differed primarily with depth to a clayey substratum, with average values of 1.06 m and 1.34 m in the shallow MZ (SMZ) and in the deep MZ (DMZ), respectively. At each site, a trial with 21 treatments including five rates of ammonium nitrate (0Á200 kg N ha(1 in 1999; 0Á 240 kg N ha(1 in 2000 and 2001) was conducted. Each N rate was applied according to five application timings (100, 75, 50, 25 or 0% of N applied at planting with the remainder at hilling). The effects of N rates and timing on N rec , RSN and SWN sometimes differed between sites. The N rec was less responsive to N rates and timing in the SMZ site compared with the DMZ site. Application of the same rate of fertilizer N generally resulted in higher values of RSN at harvest in the SMZ site compared with the DMZ site. Measured SWN was higher in the DMZ than in the SMZ on several occasions in 1999 and 2001, indicating greater nitrate (NO 3 ) leaching in the DMZ site compared with the SMZ site. Different site-specific N management regimes could thus be used at the two sites to improve N use efficiency and to limit the risk of NO 3 leaching. However, the temporal variability in the measured parameters, influenced mainly by climatic conditions, was greater than the spatial N variability and this emphasizes the fact that a dynamic model of the N status based on the soil and/or the plant is a prerequisite to help growers to adjust the N fertilizer application within fields and seasons. For personal use only.

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Response of four potato cultivars to rate and timing of nitrogen fertilizer

Cited by 56 publications

References 24 publications

Production potential of newly released potato (Solanum tuberosum L.) cultivars under different nitrogen levels

Production potential of newly released potato (Solanum tuberosum L.) cultivars under different nitrogen levels

Drip Fertigation Regime for Potato on Sandy Soil

Apparent fertilizer nitrogen recovery and residual soil nitrate under continuous potato cropping: Effect of N fertilization rate and timing

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