Effect of nitrogen, phosphorus, and potassium fertilizers on yield components and specific gravity of potatoes

Dubetz, S.; Bole, J. B.

doi:10.1007/bf02852794

Cited by 24 publications

(20 citation statements)

References 12 publications

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“…In similar studies on acid soils of western Washington, applying KC1 lowered SG more than K2SO4 (12). Dubetz and Bole (1975) observed no K effect on yield, number of tubers, or weight of tubers at various N rates, but K decreased SG. Rowberry and Ketcheson (1978) reported that when K was withheld from a NPK experiment the quality of Kennebec potatoes decreased.…”

Section: Introductionmentioning

confidence: 71%

Nitrogen and potassium fertilization of potatoes: Yield and specific gravity

Westermann¹,

Tindall

James

et al. 1994

American Potato Journal

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Potassium and N fertilization is often required for maximum potato (Solanum tuberosum L.) production. Nitrogen, K, and K-sources (KC1, K2SO4) are known to affect yield and quality of potatoes but N and K interactions as affected by K-source have not been defined. This study evaluated the N*K and K-source interactions on Russet Burbank tuber yields and specific gravity (SG) in two irrigated field experiments. Nitrogen rates of 0, 112, 224 or 336 kg ha' were combined with selected K rates of 0, 112, 224 or 448 kg ha as either KC1 or K2SO4 in an incomplete factorial. A multiple linear regression model was fit to the data and used to predict yield and SG for a complete factorial for each K-source. Both N and K applications increased yields independent of K-source. Nitrogen decreased yields at the 336 kg ha' rate. Potassium increased yields up to 448 kg K ha'. Both K-sources decreased SG a similar amount with N application; without N, KC1 decreased SG but K2SO4 did not. Nitrogen also decreased SG. Petiole NO 3-N and K concentrations were positively related to yields and negatively to specific gravities. The petiole K concentration 100 days after planting should be above 4.5 for highest tuber yields. The N*K*K-source interaction was important for yields at low available N and for SG at adequate N availabilities. This study showed that N or K fertilizers can be applied according to their respective soil test concentration and the crop's requirement, generally without consideration of K-source. CompendioPara una producciOn maxima de papa (Solanum tuberosum L.) se requiere frecuentemente de la fertilizaciOn nitrogenada y potasica. Se sabe que el nitrogeno (N), el potasio (K) y las fuentes de potasio (KCL, K2SO 4) afectan el rendimiento y la calidad de la papa, pero las interacciones del N y el K en relaciOn a la fuente de K no han sido definidas. Este estudio evaluO en dos experimentos de campo bajo irrigaciOn las interacciones de N*K con la fuente de K sobre los rendimientos en tuberculos y la gravedad especifica (GE) de Russet Burbank. Dosis de nitrogeno de 0, 112, 224 o 336 kg ha-1 se combinaron con dosis seleccionadas de K de 0, 112, 224 o 448 kg ha-1 como 'Contribution from USDA-ARS and the Utah Agric. Expt.

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Section: Introductionmentioning

confidence: 71%

Nitrogen and potassium fertilization of potatoes: Yield and specific gravity

Westermann¹,

Tindall

James

et al. 1994

American Potato Journal

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“…Some of the early ACA literature suggested the additive was affecting the crops' N utilization (NCR 103 Committee 2004). As has been shown by several researchers, Starter ACA rate (mL ha −1 ) 1997 1998 1997 1998 1996 1997 1998 1997 1998 - (Dubetz and Bole 1975;Moorby and Milthorpe 1975;Kleinkopf, Westermann, and Dwelle 1981;Westermann and Kleinkopf 1985). While the 1998 early-season tuber weight was less where 192 or 288 mL ha −1 ACA was applied, analysis of the leaf tissue about 2 weeks later showed no N concentration increases where ACA was used either in that year or averaged across the 3 years (Table 4).…”

Section: Resultsmentioning

confidence: 73%

Effectiveness of ACA Rates on Potatoes Raised in Irrigated Sandy Soil

Kelling

Speth

2010

Communications in Soil Science and Plant Analysis

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Over a 5-year period, field evaluations of several rates of ACA, an acronym for Agricultural Crop Additive, were conducted on irrigated sandy Wisconsin soils using potato (Solanum tuberosum L.) as the test crop. In some years, statistically significant tuber total yield increases of about 4 Mg ha −1 were seen for one rate, but not others, with the response rate varying between years. In 1 year, similarly sized yield increases were seen for all rates. In most years, the use of ACA (at one or more rates) increased the size of harvested tubers but did not affect other measured growth parameters including stem or tuber number, early-season vegetative or root growth, or midseason leaf nutrient concentrations. In the year when ACA was evaluated across three potato varieties, the responses appeared to be variety specific. No clear mode of action could be identified where the positive responses were seen other than the apparent influence of the additive on harvested tuber size.

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“…The greater amount of plant vegetative growth with early N application is consistent with results from several others (Ivins and Bremner 1965;Benepal 1967;Grewal et al 1979;Kleinkopf et al 1981;Vos 1995), who showed earlier tuberization and larger early-season allocation of carbohydrates to the tubers when N supply is low. The treatment effect on tuber number is less consistent in the literature as some researchers have also noted fewer tubers where N was applied (Sommerfeldt and Knutson 1968;Clutterbuck and Simpson 1978), whereas others observed tuber number increases (Hanley et al 1965;Dubetz and Bole 1975;Roberts et al 1982;Belanger et al 2002) or no change (Benepal 1967;Dyson and Watson 1971;De la Morena et al 1994) in tuber number with increasing N application rate. In this experiment, applying all of the supplemental N at tuberization resulted in vegetative biomass at the second evaluation equal to the treatments where some N was applied at emergence.…”

Section: Resultsmentioning

confidence: 85%

“…However, N supply has little impact on rate of photosynthesis (Firman and Allen 1988;Vos and van der Putten 1998), and the effect on other yield components such as number of stems per square meter or number of tubers per plant has been mixed. Knutson (1965, 1968), Benepal (1967), Dyson and Watson (1971), Clutterbuck and Simpson (1978), and De la Morena et al (1994) concluded that high levels of early-season N either decreased or had no effect on numbers of tubers, whereas others observed that tuber numbers were increased when adequate amounts of N was available early (Hanley et al 1965;Dubetz and Bole 1975;Roberts et al 1982). Early-season N fertilization has consistently resulted in a delay in tuber initiation by 7 to 10 days (Clutterbuck and Simpson 1978;Sattelmacher and Marschner 1979;Kleinkopf et al 1981) and significant increases in tuber size (Benepal 1967;De la Morena et al 1994;Belanger et al 2002).…”

Section: Introductionmentioning

confidence: 95%

Importance of Early-Season Nitrogen Rate and Placement to Russet Burbank Potatoes

2015

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Early-season nitrogen (N) is necessary for optimal potato vegetative growth and creating an optimal growing condition for high yields; however, on sandy soils it also increases the risk of losing fertilizer N through leaching. This 3-year field experiment evaluated whether a smaller amount of N placed near the plant roots could provide the benefits associated with higher rates of early N applications that were less well placed. Two rates of N applied at emergence (40 or 80 kg N ha −1 ) were spot-placed (5 to 7 cm around each plant), banded along the row, or broadcast applied, and compared to no N or where all of the in-season N was applied at tuberization. All plots except the zero N controls received a total of 170 kg ha −1 of in-season N. Where emergence N was spot-applied in some years, tuber numbers were reduced compared to where the N was broadcast, and in these situations, resulted in increased tuber size and higher yields of primesized tubers (U.S. No. 1, 170 to 370 g). Where differences existed, results from banded treatments were intermediate between those from the spot and broadcast treatments. However, in spite of apparent N placement effects likely associated with having a higher concentration of N near the plant roots early in the season, no differences were evident between the two rates of emergence N within a given placement. In this experiment, total yields were not affected by rate or placement of emergence N. Overall, this experiment provides support for the concept of placing early-season N near the plant roots, and band applications along the row may be a grower-manageable alternative for achieving this goal.Resumen El nitrógeno (N) al inicio del ciclo es necesario para el crecimiento vegetativo óptimo de la papa y para generar una condición óptima de crecimiento para altos rendimientos; no obstante, en suelos arenosos también se aumenta el riesgo de pérdida de fertilizante nitrogenado por lixiviación. En este experimento de campo de tres años se evaluó si una cantidad menor de N ubicada cerca de las raíces de la planta pudiera suministrar los beneficios asociados con niveles más altos de aplicaciones tempranas de N que no estuvieran tan bien ubicadas. Se aplicaron dos niveles de N a la emergencia en manchones (40 u 80 kg N ha −1 , 5 a 7 cm alrededor de cada planta), en banda a lo largo del surco, o disperso, y se compararon con ausencia de N, o cuando todo el N del ciclo se aplicó a la tuberización. Todos los lotes, con excepción de los testigos de cero N, recibieron un total de 170 kg ha −1 de N en el ciclo. Cuando se aplicó el N en manchones a la emergencia, en algunos años, se redujo el número de tubérculos en comparación a cuando se aplicó disperso, y en estas situaciones, resultó en el aumento en el tamaño del tubérculo y en rendimientos más altos de tubérculos de tamaño de primera (U.S. No. 1, 170 a 370 g). En donde hubo diferencias, los resultados de los tratamientos en banda fueron intermedios entre los de manchones y los dispersos. No obstante, a pesar de los efectos aparentes de la ...

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Effect of nitrogen, phosphorus, and potassium fertilizers on yield components and specific gravity of potatoes

Cited by 24 publications

References 12 publications

Nitrogen and potassium fertilization of potatoes: Yield and specific gravity

Nitrogen and potassium fertilization of potatoes: Yield and specific gravity

Effectiveness of ACA Rates on Potatoes Raised in Irrigated Sandy Soil

Importance of Early-Season Nitrogen Rate and Placement to Russet Burbank Potatoes

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