Tuber yield, water and fertilizer productivity in early potato as affected by a combination of irrigation and fertilization

Ierna, A.; Pandino, Gaetano; Lombardo, Sara; Mauromicale, Giovanni

doi:10.1016/j.agwat.2011.08.024

Cited by 107 publications

(77 citation statements)

References 34 publications

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“…7). By contrast, the medium level of fertigation improved the IWP values compared with plots of high and low fertilization levels, which was consistent with results of Ierna et al (2011). Adequate and timely availability of water and nutrients and their synergistic interaction might have promoted the plant growth, increased yield and ultimately resulted in greater IWP (Jayakumar et al, 2015).…”

Section: Iwp and Pfp For Different Fertigation Levelssupporting

confidence: 79%

“…7). Similar observations for potato were made by Darwish et al (2006) with drip fertigation and Ierna et al (2011) under drip irrigation and split application fertilizer. IWP=Irrigation water productivity; PFP=Partial factor productivity; *The values followed the same letters within each column in different years are not significantly different (P≤0.05)…”

Section: Iwp and Pfp For Different Fertigation Levelssupporting

confidence: 63%

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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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Section: Iwp and Pfp For Different Fertigation Levelssupporting

confidence: 79%

Section: Iwp and Pfp For Different Fertigation Levelssupporting

confidence: 63%

Drip Fertigation Regime for Potato on Sandy Soil

et al. 2017

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“…Partial factor productivity (PFP) is the amount of applied fertilizer per unit fruit yield, and thus, PFP-N indicates the PFP of N fertilizer [28].…”

Section: Partial Factor Productivity (Pfp)mentioning

confidence: 99%

Carbon Footprint Analyses and Potential Carbon Emission Reduction in China’s Major Peach Orchards

Guo

Wang

et al. 2018

Sustainability

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An excess of material input in fruit orchards has brought serious environmental problems, particularly in China. However, studies on the estimation of greenhouse gas (GHG) emissions in peach orchards are limited. In this study, based on questionnaire surveys in major peach-producing regions, including the North China Plain (n = 214), as well as northwest (n = 22) and southwest (n = 33) China, the carbon footprints (CFs) of these orchards were calculated by the life cycle assessment. The potential emission reduction in each region was estimated by combining the GHG emissions and CFs with plantation areas and fruit yields. The results showed that the average GHG emissions in the North China Plain, northwest, and southwest regions were 15,668 kg CO 2 -eq ha −1 , 10,386 kg CO 2 -eq ha −1 , and 5580 kg CO 2 -eq ha −1 , with corresponding CFs of 0.48 kg CO 2 -eq ha −1 , 0.27 kg CO 2 -eq ha −1 , and 0.20 kg CO 2 -eq kg −1 , respectively. The main contribution source of GHG emissions in these three regions was fertilizer (77-95%), followed by electricity, pesticides, and diesel. By adopting advanced farming practices with high yield and a high partial factor productivity of fertilizer, the GHG emissions could be reduced by~13-35%, with the highest potential reduction in the North China Plain. In conclusion, the GHG emissions and their CFs were impressively high in China's major peach-producing regions, but these GHG emissions could be substantially decreased by optimizing nutrients and irrigation management, including the rational selection of fertilizer rates and types with water-saving irrigation systems or practices (e.g., mulching) for increasing fertilizer and water use efficiency, and maintaining a sustainable peach production in China or similar countries.

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“…Espín et al (2001) reported that tuberous La fertilización no solo influye en el rendimiento sino también en la calidad del tubérculo; se ha encontrado que el contenido de almidón del tubérculo depende del porcentaje y densidad de la materia seca así como del porcentaje del aire en tejidos (Talburt y Smith, 1967citado por Sifuentes et al, 2013, pero disminuye al aumentar los niveles de NPK ya que éstos elementos son los que determinan el contenido y la calidad del tubérculo (Kunkel y Holstad, 1972). Ante el incremento acelerado de los precios de los fertilizantes, la presencia de sequía recurrente, bajo grado de aprovechamiento de fertilizantes, contaminación de agua superficial y subterránea por fertilizantes nitrogenados y fosfóricos (Ierna et al, 2011) así como el incremento en la variabilidad climática, es imperante el manejo de la fertilización del cultivo y el aprovechamiento de los productos orgánicos.…”

Section: Resultsunclassified

Concentración de almidón y proteínas solubles en tubérculos de Caladium bicolor en diferentes etapas fenológicas

Sánchez

Reyna

Cervantes

et al. 2017

Remexca

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En el presente trabajo se evaluó la concentración de almidón y proteínas solubles (mg g-1 de MS) en tubérculos de Caladium bicolor mediante la aplicación de productos orgánicos (ácidos húmicos y fúlvicos) diluidos en el agua de riego. Los tratamientos consistieron en la interacción de tres dosis de producto orgánico (0 (testigo), 4 y 8 ml L-1) y tres etapas fenológicas del cultivo (f loración, predormancia y dormancia. Las variables fueron medidas en base a la técnica de espectrofotometría UV-visible, mediante modelos matemáticos derivados de curvas de calibración para cada compuesto orgánico. Los datos obtenidos fueron analizados bajo un diseño completamente al azar con arreglo factorial 3*3. Los tratamientos con 8 y 4 ml L-1 de producto orgánico (ácidos húmicos y fúlvicos) en la etapa de dormancia, presentaron mayor concentración de almidón con 885.18 y 833.97 mg g-1 de MS respectivamente. Por otra parte, se obtuvo la mayor concentración de proteínas solubles en los tratamientos de 4 y 8 ml L-1 en la etapa de f loración con 156.04 y 150.54 mg g-1 de MS respectivamente. Bajo las condiciones en las que se desarrolló la presente investigación, se concluye que la aplicación de productos orgánicos genera mayor concentración de reservas vegetativas en el tubérculo de este cultivo, lo cual servirá para que produzca brotes en mayor tamaño y cantidad para el siguiente ciclo de producción.

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Tuber yield, water and fertilizer productivity in early potato as affected by a combination of irrigation and fertilization

Cited by 107 publications

References 34 publications

Drip Fertigation Regime for Potato on Sandy Soil

Drip Fertigation Regime for Potato on Sandy Soil

Carbon Footprint Analyses and Potential Carbon Emission Reduction in China’s Major Peach Orchards

Concentración de almidón y proteínas solubles en tubérculos de Caladium bicolor en diferentes etapas fenológicas

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