Yield and phosphorus nutrition of potatoes (Solanum tuberosum L.) cv. ‘Delaware’ grown on a yellow Karrakatta sand containing freshly- and previously-applied Alkaloam - gypsum

1999 ◽  
Vol 39 (1) ◽  
pp. 87 ◽  
Author(s):  
W. J. Robertson ◽  
I. R. McPharlin ◽  
R. C. Jeffery

Summary. Potatoes (Solanum tuberosum L.) cv. ‘Delaware’ were grown over winter on a yellow Karrakatta sand amended with Alkaloam–gypsum (AG; previously referred to as red mud–gypsum) at up to 240 t/ha, both freshly-applied (2 experiments) and applied 2.5 years earlier (1 experiment). Several levels of phosphorus fertiliser (0–600 kg P/ha) were applied to the freshly-applied AG and a single level (600 kg P/ha) was applied to the previously-applied AG. Amendment of the soil with 60 t AG/ha (freshly-applied) doubled the amount of fertiliser phosphorus retained in the top 30 cm of soil when 100 kg P/ha was applied. On freshly-applied AG, bicarbonate-extractable phosphorus showed an upward trend with level of AG, being 16 mg/kg (0–15 cm) at 0 t AG/ha and 34 mg/kg at 90 t AG/ha. This will decrease phosphorus fertiliser requirements in the following potato crop by 49% relative to unamended soil based on previously published soil test standards. Amendment with freshly-applied AG increased the level of applied phosphorus required for 99% of maximum petiole phosphorus concentration by 46 and 139% in the 2 experiments compared with unamended soil. Maximum yield was significantly reduced by 7–10% at 60 t/ha of freshly-applied AG compared with unamended soil while on residual AG it was only reduced at 240 t/ha (12%) (trend only). Yield reductions were not correlated with a reduced availability of phosphorus, however, they may have been due to a reduced availability of potassium. The concentrations in the tubers of antimony, arsenic, cadmium, chromium, cobalt, lead, mercury and nickel did not exceed legal limits on soil amended with AG.

2020 ◽  
Vol 14 (5) ◽  
pp. 1812-1819
Author(s):  
Adolphe Nsomue Ngoyi ◽  
Gustave Kishiko Masanga ◽  
Hubert Mulungu Bila ◽  
Alphonse Yangoy Yashima ◽  
Médard Matala Milambo ◽  
...  

Le bas niveau de la fertilité des sols à Kabinda et la rareté des engrais chimiques sur le marché orientent les agriculteurs à recourir à une fertilisation palliative et durable. Cette étude a été réalisée dans le but d’évaluer l’effet des amendements organiques sur la croissance et le rendement de la pomme de terre. L’essai était installé suivant un dispositif en blocs complets randomisés. Les traitements en cinq répétitions ont été constitués d’un témoin (T0), de la bouse de vache (T1), de cendres (T2) et de la biomasse fraiche de Entada abyssinica (T3). Les observations ont porté sur les paramètres de croissance et de rendement et l’analyse de la variance (ANOVA) a été appliquée pour la comparaison. Les résultats obtenus renseignent que la pomme de terre se comporte positivement sous effet d’amendements (P<0.05) comparativement au sol non amendé. Le plus grand nombre de feuilles est démarqué nettement au traitement à base des cendres avec 4 feuilles contre 2 feuilles pour le témoin. L’apport de la cendre à la dose de 10 kg/ha sur la culture de la pomme de terre a augmenté le rendement de 1 t/ha par rapport au sol non amendé. L’utilisation de ces amendements dans une région comme Kabinda contribuerait au développement de l’agriculture en luttant contre l’insécurité alimentaire et la pauvreté. Ainsi donc, L’utilisation de la cendre est recommandable pour la production de la pomme de terre vu ses effets sur la culture et sa disponibilité dans la ville de Kabinda.Mots clés : Fertilité, engrais chimiques, production, Solanum tuberosum , Kabinda. English Title: Effect of organic amendments on growth and yield of potato (Solanum tuberosum L.) on soil degraded in Kabinda area, Democratic Republic of CongoThe low level of soil fertility in Kabinda and the scarcity of chemical fetilizers on the market guide farmers to seel palliative and sustainable fertilization. This study was carried out in order to assess the effect of organic amendments on the growth and potato yield. The trial was installed using a ramdomized complete block system. Five Treatments in five repetitions, consisted of a witness (T0), cow dung (T1), ash (T2) and Entada abyssinica fresh biomass (T3). Observations focused on growth and yield parameters and analysis of variance (ANOVA) at the 5% threshold was applied for comparison betwen treatments. The results obtained indicate that the potato behaves positively under the effect of amendments (P<0.05) compared to unamended soil. The greatest leaves number is clearly demarcated in the ash based treatment with 4 leaves versus 2 leaves for the witness treatment. The addition of ash to the potato crop increased the yield by 1 t/ha compared to the unamended soil. The use of ash is recommendable for the production of potato in the city of Kabinda.Keywords : Fertility, chemical fertilizers, production, Solanum tuberosum, Kabinda


2000 ◽  
Vol 40 (1) ◽  
pp. 107 ◽  
Author(s):  
M. A. Hegney ◽  
I. R. McPharlin ◽  
R. C. Jeffery

Field experiments were conducted over 3 years at 21 sites of varying phosphorus (P) fertiliser histories (Colwell P range: 9–170 g/g) in the Manjimup–Pemberton region of Western Australia to examine the effects of freshly applied (current) and previously applied (residual or soil test ) P on the yield of potatoes (Solanum tuberosum L. cv. Delaware). Phosphorus was placed (banded) at planting, 5 cm either side of and below seed planted at 20 cm depth, at levels up to 800 kg P/ha. Exponential [y = a – b exp (–cx)] regressions were fitted to the relationship between tuber yield and level of applied P at all sites. Weighted (according to the variance) exponential regressions were fitted to the relationship between yield responsiveness (b/a, from the yield versus level of applied P relationship) and Colwell P, and two P sorption indices—phosphate adsorption (P-adsorb) and a modified phosphate retention index (PRI(100)). A weighted exponential regression was also fitted to the relationship between the level of applied P required for 95% of maximum yield (Popt; also from yield versus level of applied P) and P-adsorb and PRI(100). A weighted linear regression best described the relationship between Popt and Colwell P. Phosphorus application significantly (P<0.10; from the regression analysis) increased total tuber yield at all but 4 sites. Marketable tuber yield response paralleled total tuber yield response at all sites and averaged 85% of total yields (range 63–94%). Colwell P gave a good prediction of the likely yield response of potatoes across all sites. For example, the yield responsiveness (b/a) of potatoes in relation to Colwell P decreased exponentially from 1.07 at 0 g/g to 0, or no yield response, at 157 g/g Colwell P (R2 = 0.96) i.e. the critical Colwell P for 95% of maximum yield of potatoes on soils in the Manjimup–Pemberton region. Similarly, no yield response (b/a = 0) would be expected at a P-adsorb of 180 g/g (R2 = 0.69) or a PRI(100) of 46 (R2 = 0.61). The level of applied P required for 95% of maximum yield (Popt) decreased linearly from 124 kg/ha on infertile sites (<5 g/g Colwell P) to 0 kg P/ha at 160 g/g Colwell P (R2 = 0.66). However, a more accurate prediction of Popt was possible using either P-adsorb or PRI(100). For example, Popt increased exponentially from 0 kg/ha at <181 g/g P-adsorb (high P soils) to 153 kg/ha at a P-adsorb of 950 g/g (low P soils) (R2 = 0.75) and exponentially from 0 kg/ha at a PRI(100) of <48 (high P soils) to 147 kg/ha at a PRI(100) of 750 (low P soils) (R2 = 0.80). PRI(100) is preferred as a soil test to predict Popt for potatoes in the Manjimup–Pemberton region because of its superior accuracy to the Colwell test. It is also preferred to P-adsorb because of both superior accuracy and lower cost as it is a simpler and less time consuming procedure — features which are important for adoption by commercial soil testing services. A multiple regression including Colwell P, P-adsorb and PRI(100) only improved the prediction of Popt slightly (R2 = 0.89) over PRI(100) alone. When tubers were 10 mm long, the total P in petioles of youngest fully expanded leaves which corresponded with 95% of maximum yield was 0.41% (dry weight basis). These results show that, while the Colwell soil P test is a useful predictor of the responsiveness of potato yield to applied P across a range of soils in the Manjimup–Pemberton region, consideration of both the soil test P value and the P sorption capacity of the soil, as determined here by PRI(100), is required for accurate predictions of the level of P fertiliser required to achieve maximum yields on individual sites.


1997 ◽  
Vol 37 (1) ◽  
pp. 131
Author(s):  
M. A. Hegney ◽  
I. R. McPharlin ◽  
R. C. Jeffery

Summary. The response of winter-grown potatoes (Solanum tuberosum L. cv. Delaware), as determined by yield, to applied (broadcast) phosphorus (P) (0–480 kg/ha) and to residual P was measured on an acutely P-deficient, newly cleared Karrakatta sand in experiments over 2 years. Tuber yield responded significantly (P<0.001) to level of applied P. Phosphorus at 162 kg/ha was necessary for 99% of maximum total yield, which corresponded to maximum economic yield. For 95% of maximum yield 99 kg/ha was necessary. Phosphorus recovery efficiency by tubers (P uptake by tubers/P applied, both in kg/ha) decreased from 0.14 at 30 kg P/ha to 0.04 at 480 kg P/ha. Bicarbonate-soluble P (soil test P) extracted from the top 15 cm of soil was determined on residual P sites in each experiment to which P was applied (as superphosphate) 9 months earlier at levels from 0 to 800 kg/ha. These soil test P levels were related (R2 = 0.91) to total tuber yield. The soil test P level required for 95% of maximum total yield was 33 g/g and for 99% was 51 µg/g. When tubers were 10 mm long, the total P in petioles of youngest fully expanded leaves which corresponded to 95% of maximum yield was 0.7% (dry weight basis), and for 99% was 0.87%. These results, while based on responses measured at 2 sites only, provide strong evidence that maximum yield of winter-grown potatoes on Karrakatta sands can be achieved with lower levels of P fertiliser than are currently used in commercial practice (125–300 kg P/ha). The results also show that soil testing can be used to improve the P management of potato crops grown on the sandy soils of the Swan coastal plain.


Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1575
Author(s):  
María Antonieta Escobedo-Monge ◽  
Santiago Aparicio ◽  
Marlene Fabiola Escobedo-Monge ◽  
José Manuel Marugán-Miguelsanz

Background: In a Mediterranean agrosystem of low productivity, a study was carried out on the effects of municipal solid waste compost (MSWC) compared to other organic and inorganic amendments on the production, quality and yield of three potato varieties (Solanum tuberosum L.) and an advanced clone. Method: Simultaneously, the agronomic and nutritional parameters of the potato crop, the degree of bioavailability and the possible risks of heavy metal contamination were studied. Results: Two stages are observed in the yield and content of macro, micronutrients and heavy metals. The addition of all amendments and especially that of urban waste compost increased potato production and the content of macronutrients, micronutrients and heavy metals in the soils of all varieties, showing a progressive accumulation in tubers. Nevertheless, the performance is not maintained over time with a notable decrease during the second stage of its application. Conclusion: Highlighting the potato clone A7677 not only in its performance but also in the concentration of iron, zinc, copper, essential micronutrients for human consumption and especially for populations deficient in these trace elements.


2003 ◽  
Vol 43 (6) ◽  
pp. 631 ◽  
Author(s):  
L. A. Sparrow ◽  
K. S. R. Chapman

Thirteen field trials were conducted on ferrosols and tenosols in Tasmania to assess the response of potatoes (Solanum tuberosum L., cv. Russet Burbank) to basal (up to 250 kg/ha) and topdressed (up to 100 kg/ha) nitrogen fertiliser. Economic yield responses to basal nitrogen were obtained at 9 sites. Topdressing did not increase yield compared with equivalent rates of basal nitrogen, and often failed to compensate for a lack of nitrogen applied at planting. This lack of response may reflect the inability of the potato crop to make use of nitrogen applied during tuber bulking. Nitrogen fertiliser decreased tuber specific gravity at several sites. The effects of nitrogen on misshapen tubers, bruising susceptibility, crisp colour and hollow heart were inconsistent and often of no practical importance. However, at 2 sites, nitrogen fertiliser increased yields of misshapen tubers at the expense of processing tuber yields. At 1 of these sites, nitrogen topdressing decreased the yield of misshapen tubers. Otherwise, topdressing had similar effects on tuber quality to those of basal nitrogen. Growers should fertilise with nitrogen to optimise their yields. Optimum rates were greater in paddocks that had been continuously cropped for more than 10 years (average rate 193 kg/ha), than in those that had been in pasture (average rate 48 kg/ha).


Respuestas ◽  
2017 ◽  
Vol 22 (2) ◽  
pp. 102
Author(s):  
Lizeth Johana Sierra-Ariza ◽  
Katherin Dayana Suarez-Roberto ◽  
Jorge Enrique Villamil-Carvajal ◽  
Álvaro Enrique Alvarado-Gaona

ResumenAntecedentes: La papa (Solanum tuberosum L. grupo Andigena y Phureja) es un tubérculo de vital importancia en Colombia y en especial en el departamento de Boyacá. En la Universidad Pedagógica y Tecnológica de Colombia (UPTC) se cuenta con más de mil trabajos de grado, realizados en los 55 años de trayectoria del programa académico de Ingeniería Agronómica, entre los cuales 130 corresponden a investigaciones relacionadas con este cultivo. Objetivo: se recopiló información de dichos trabajos de grado desarrollados en este período y se analizaron 5 áreas de investigación: entomología, nutrición, fisiología vegetal, fitopatología y economía, en 3 lapsos de tiempo de 10 años cada uno y un último de 12 años. Resultados: En entomología se adelantaron 42 trabajos de grado (32,3%), siendo los de gusano blanco (Premnotrypes vorax Hustache) los más representativos. En el área de nutrición con 35 trabajos de grado (26,9%), se resaltaron los temas sobre correctivos de acidez y nutrición con elementos mayores N-P-K, haciendo énfasis en la evaluación del uso del fósforo. En fisiología vegetal se documentaron 20 trabajos de grado (15,4%), dentro de los cuales, se destacaron los temas sobre estadios fenológicos, crecimiento y desarrollo del cultivo de papa. En economía con 18 trabajos de grado (13,8%), fue más importante la evaluación económica y respuesta agronómica en fertilización, y finalmente en fitopatología con 15 trabajos de grado (11,5%), el tizón tardío (Phytophthora infestans) correspondió al patógeno más estudiado. Conclusión: Esta revisión brinda información a estudiantes, profesionales e instituciones involucradas con el sector papero colombiano y departamental, para la orientación y enfoque de futuros trabajos de investigación.Palabras clave: economía, entomología, nutrición, fisiología vegetal, fitopatología.AbstractBackground: Potato (Solanum tuberosum L. Andigena y Phureja groups) is a very important tuber in Colombia, mainly in the Boyacá department. At the Universidad Pedagógica y Tecnológica de Colombia (UPTC) students had developed over one thousand thesis, along 55 years of the agronomic engineer academic program, 130 of those related with potato crop. Objective: Information provided by those thesis during that period was taken together, and five research lines were analyzed: entomology, fertilization, plant physiology, phytopathology and economy in three timeframes of ten years and a last one of twelve years. Results: In the entomology area 42 studies were performed (32.3%), being Andean potato weevil (Premnotrypes vorax Hustache) the most representative. In the nutrition area with 35 studies (26.9%), the topics on soil acidity management were highlighted and plant nutrition with N-P-K elements, emphasizing in phosphorous use. In plant physiology 20 studies (15.4%) were documented, among which, phenology and potato growth and development were the most relevant. In the economic area with 18 studies (13.8%), the most important topic was economic evaluation and agronomic response to fertilization; and finally, in phytopathology with 15 studies (11.5%), late blight (Phytophthora infestans) was the most studied pathogen. Conclusion: This review brings information to students, professionals and institutions involved in potato crop production in Colombia and Boyacá, giving guidelines and focus for future potato research.Key words: economy, entomology, nutrition, plant physiology, phytopathology.Resumo Antecedentes: A batata (Grupo Solanum tuberosum L. Andigena e Phureja) é um tubérculo de vital importância na Colômbia e especialmente no departamento de Boyacá. Na Universidade de Pedagogia e Universidade Tecnológica da Colômbia (UPTC) existem mais de mil estudos de graduação, realizados nos 55 anos do programa acadêmico de Engenharia Agrícola, dentre os quais 130 correspondem a pesquisas relacionadas a esta safra. Objetivo: compilamos informações sobre esses estudos de pós-graduação desenvolvidos neste período e analisamos 5 áreas de pesquisa: entomologia, nutrição, fisiologia vegetal, fitopatologia e economia, em 3 períodos de 10 anos cada e nos últimos 12 anos. Resultados: na entomologia, 42 estudos de graduação (32,3%) foram avançados, com o verme branco (Premnotrypes vorax Hustache) sendo o mais representativo. Na área de nutrição com empregos de 35 graus (26,9%), foram enfatizados os sujeitos sobre a acidez e corretivos nutricionais com elementos N-P-K mais altos, com ênfase na avaliação do uso de fósforo. Vinte estudos de pós-graduação (15,4%) foram documentados em fisiologia vegetal, com ênfase em estádios fenológicos, crescimento e desenvolvimento de cultivo de batata. 18 postos de trabalho no grau da economia (13,8%), avaliação económica e resposta à fertilização Agronômico era mais importante, e, finalmente, em Fitopatologia 15 obras de graduação (11,5%), requeima (Phytophthora infestans) correspondeu para o patógeno mais estudado. Conclusão: esta revisão fornece informações aos alunos, profissionais e instituições envolvidas com o setor de papelaria colombiano e departamental, para orientar e focar futuros trabalhos de pesquisa.Palavras-chave: economia, entomologia, nutrição, fisiologia vegetal, fitopatologia.


2021 ◽  
Vol 50 (3) ◽  
pp. 695-700
Author(s):  
Maruf Mostofa ◽  
Tuhin Suvra Roy ◽  
Rajesh Chakraborty

An experiment was conducted to find out the effect of vermicompost and seed tuber size on the yield of Potato. The experiment consisted of two factors, i.e., factor A: Vermicompost level (Vc-4): Vc1: 0 t/ha, Vc2: 3 t/ha, Vc3: 6 t/ha and Vc4: 9 t/ha; factor B: Tuber size (T-5): T1: 5 - 10 g, T2: 10 - 20 g, T3: 20 - 30 g, T4: 30 - 40 g and T5: >40 g. Vermicompost was found to have a significant effect on most of the yield contributing parameters. Results showed that yield parameters increased with increasing vermicompost level irrespective of tuber size. Among the 20 treatment combinations, vermicompost @ 9 t/ha with tuber size > 40 g produced the maximum yield (31.33 t/ha) that was 216.82% higher than Vc1T1. Bangladesh J. Bot. 50(3): 695-700, 2021 (September)


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