Nitrogen application improved the growth and yield performance of sweetpotato (lpomoea batatas (L.) Lam.)

Relente, Flore-Anne; Asio, Luz

doi:10.32945/atr4214.2020

Cited by 10 publications

(4 citation statements)

References 19 publications

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“…Treatment 2, achieved the highest results for foliage yield, these results indicated that the addition of minor elements such as zinc, iron and manganese, increased foliage yield, which is similar to that reported by Fernandes et al (2020), who showed that N fertilization increased the absorption of P, K, Ca and Mg and micronutrients, which influenced the growth of sweetpotato plants. Treatment 4 showed the highest number of commercial tuber roots per hectare, data in agreement with those reported by Relente and Asio (2020), who indicated that applications of 80 kg.ha -1 of nitrogen produced the best number of commercial roots.…”

Section: Resultssupporting

confidence: 91%

Influence of inorganic fertilization on production parameters of two varieties of sweet potato

Cobeña,

Zambrano,

Ruilova

et al. 2024

RevFacAgron(LUZ)

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In order to determine the effect of inorganic fertilization treatments on the productive behavior of the sweetpotato varieties "INIAP-Toquecita" and "INIAP-Buena Vista", this research was carried out during the dry season (June–December 2022) at the Estación Experimental Portoviejo del Instituto Nacional de Investigaciones Agropecuarias-INIAP, in the Colón parish, canton Portoviejo, province of Manabí, Ecuador. A randomized complete block design was used with three replications, and the following variables were analyzed: percent yield, total number of guides per plant, length of guides, mass of 100 guides, foliage yield, and number and yield of commercial roots. The inorganic fertilization treatments under study were: 1. N+P2O5+K2O+S+Mg+B; 2. N+P2O5+K2O+S+Mg+B+Zn+Mn+Fe; 3. 50 % more N+P2O5+K2O+S+Mg+B with respect to treatment 1; 4. N+P2O5+K2O; and 5. no fertilizers (control). It was evidenced that the inorganic fertilization treatments implemented on the variety "INIAP-Buena Vista" outperformed the results of the control, while treatments 1 and 2 of inorganic fertilization implemented on the variety "INIAP-Toquecita" outperformed the control. It was observed that the most favorable scenario for maximizing the yield of commercial tuberous roots in the variety "INIAP-Buena Vista" was treatment 3, which had 50 % more macro and micronutrients per hectare added to the soil with respect to treatment 1. The varieties evaluated did not show nutritional deficiencies during the production cycle (120 days).

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Section: Resultssupporting

confidence: 91%

Influence of inorganic fertilization on production parameters of two varieties of sweet potato

Cobeña,

Zambrano,

Ruilova

et al. 2024

RevFacAgron(LUZ)

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“…Similar results were reported by Esan et al 22 , Relente and Aliso 23 , who observed that efficient use of higher inorganic fertilizer increased the above-ground biomass and root yield in the case of sweet potatoes.…”

Section: Discussionsupporting

confidence: 90%

Vine Cutting Lengths and Fertilizer Effects on Yield of Sweet Potato (Ipomoea batatas L.)

Oycha¹,

Abrham²,

Woldemaria³

2023

J. of Plant Sciences

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Background and Objective: Low productivity of sweet potato in Ethiopia was associated with different factors among which inappropriate vine cuttings and area-specific fertilizer recommendations are the most important ones in the area. Thus, a field experiment was conducted during the 2020/21 cropping season at Boloso Sore, Wolaita, Southern Ethiopia to determine the optimum vine length and NPS fertilizer rate that gives the highest root yield in sweet potato. Materials and Methods: Treatments consisted of four vine cutting lengths (10, 20, 30 and 40 cm) and four NPS rates (0, 75, 150 and 225 kg haG 1 ) in factorial arrangement and laid out in Randomized Complete Block Design (RCBD) with three replications. Results: The ANOVA showed that the interaction effect of vine cutting lengths and NPS rates significantly (p<0.05) affected biomass yield, marketable, unmarketable and total root number per plant, marketable and total root yield. The main effect of vine cutting lengths and NPS rates affected days to 90% maturity, vine number, root length and diameter and root dry matter. The highest total root yield (56.73 t haG 1 ) and marketable yield (54.89 t haG 1 ) were achieved by vine length of 30 cm and 225 kg NPS haG 1 . The highest gross net benefit of 438,267.10 Birr with the highest marginal rate of return (99.40%) was recorded by 30 cm and 225 kg NPS haG 1 . Conclusion: Hence, based on the current investigation, it can be concluded that vine cutting length of 30 cm with an NPS fertilizer rate of 225 kg haG 1 showed superior performance in the Wolaita area.

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“…Orange-feshed sweet potatoes' ability to absorb nutrients was infuenced by a variety of genetics. Te current result is similar to previous reports of Flore-Anne [54] that showed the treatment of N signifcantly increased the N uptake of the sweet potato plant. Advanced N uptake resulted in plants applying high amounts of N which ranged from 138.64 to 162.27 g per plant.…”

Section: Total N Concentration In Soilsupporting

confidence: 92%

Nutrient Uptake and Efficiencies of Orange-Fleshed Sweet Potato (Ipomoea batatas L.) Varieties under Different Rates of Nitrogen and Phosphorus Fertilizers

Lemma,

Mohammed,

Gurmu

et al. 2023

International Journal of Agronomy

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Sweet potatoes serve as a staple food and animal feed in Africa and serve as a source of raw materials for the food, feed, pharmaceutical, cosmetic, chemical, and energy industries. The yield of orange-fleshed sweet potatoes is increased when nitrogen (N) and phosphorus (P) are added to low-fertility soils. The objective of this study was to evaluate the nutrient uptake and use efficiency of orange-fleshed sweet potato varieties under applied N and P. The experiment was conducted for two growing seasons (2019 and 2020) under rain-fed conditions in the field. The study included five orange-fleshed sweet potato varieties (Kulfo, Kabode, Alamura, Dilla, and NASPOT-12), three N levels (0, 23, and 46 kg·N·ha−1), and two levels of P (0 and 46 kg P2O5·ha−1) fertilizers designed in 5 × 3 × 2 with α-lattice design in factorial arrangement using 3 replications. The interaction effect of variety, N, and P fertilizers affected nutrient uptake, physiological efficiency, and agronomic efficiency of sweet potatoes. NASPOT-12 was the better variety in nutrient uptake but poor in apparent recovery at all levels of N and P. The highest nutrient uptake, agronomic efficiency, and physiological efficiency were observed on NASPOT-12 when subjected to 23 kg N·ha−1 and 46 kg P2O5·ha−1. Overall, NASPOT-12 with 23 kg·N·ha−1 and 46 kg P2O5·ha−1 could be recommended for its high nutrient uptake, agronomic, and physiological efficiencies.

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Nitrogen application improved the growth and yield performance of sweetpotato (lpomoea batatas (L.) Lam.)

Cited by 10 publications

References 19 publications

Influence of inorganic fertilization on production parameters of two varieties of sweet potato

Influence of inorganic fertilization on production parameters of two varieties of sweet potato

Vine Cutting Lengths and Fertilizer Effects on Yield of Sweet Potato (Ipomoea batatas L.)

Nutrient Uptake and Efficiencies of Orange-Fleshed Sweet Potato (Ipomoea batatas L.) Varieties under Different Rates of Nitrogen and Phosphorus Fertilizers

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