Yield Performance of Newly Developed Cassava Varieties in Response to Inorganic Fertilizers

Katuromunda, Sylvester; Ekwaro, Benson; Wanaku, Boniface

doi:10.5539/mas.v15n4p60

Cited by 3 publications

(4 citation statements)

References 26 publications

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“…These results are in agreement with those of earlier researchers who reported that the application of 125, 60 and 100 kg/ha of N, P 2 O 5 and K 2 O, respectively resulted in significantly higher potato tuber yields than in the control [31,32]. It has also been observed that NPK fertilizer application in tuberous crops supplies nutrients for tuber formation and development, and for promoting the photosynthetic capacity of the leaf area that in turn provides photosynthates for tuber bulking [33,34].…”

Section: Yield Response Of Improved Sweet Potato Cultivars To Intercr...supporting

confidence: 92%

Growth and Yield Response of Improved Sweet Potato Cultivars to Intercropping with Hybrid Maize and Inorganic Fertilizers

Katuromunda¹

2021

JPS

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A field study was conducted in 2018 to determine the growth and yield response of improved sweet potato cultivars to intercropping with hybrid maize and inorganic fertilizer application using a randomized complete block design in a split-plot arrangement and three replications. Maize was intercropped with NASPOT 1, NASPOT 8 and NASPOT 11 potato cultivars. Sole crops and the potato/maize intercrops were fertilized with graded levels of N, P and K comprising a control without fertilizer, 40-20-30, 80-40-60, 120-60-90 and 160-80-120 kg/ha of N-P-K. Vine lengths, and numbers of vine branches and leaves of potato plants under intercropping were higher (P < .05) than those of plants under sole cropping system. In both systems, NPK fertilizer application didn't (P >.05) affect the vine lengths and numbers of vine branches compared to the control. But numbers of vine branches of plants under sole cropping for all the fertilizer treatments were higher (P < .0001) than those of plants under intercropping system. Generally, NPK application in the sole potato cropping significantly (P =.02) affected the leaf numbers, and the fertilized potato plants had greater (P < .05) leaf numbers than the control. In both systems, NASPOT 11 produced the highest tuber yield, followed by NASPOT 8. Tuber yields were better (P < .01) under sole cropping (43.36 MT/ha) than under intercropping (33.35 MT/ha). Maize grain yields were also better (P < .0001) under sole cropping than under intercropping. But grain yields from all the fertilized intercrops were greater (P < .05) than those of their corresponding control treatments. In all the intercrops, the land equivalent ratios (LERs) were greater than unity indicating yield advantage of intercropping over sole cropping. It was concluded that applying 120-60-90 kg/ha of N-P-K into the potato/maize intercrops results in better tuber yields compared to the unfertilized control. Also, N-P-K application in quantities greater than 40-20-30 kg/ha does not lead to significant differences in tuber yields between the potato/maize intercropping and sole potato cropping systems indicating that inter-specific competition for nutrients in the intercrops is eliminated by the fertilizer. In addition, the application of 80-120 kg N/ha, 40-60 kg P/ha and 60-90 kg K/ha in the intercrops results in better intercrop performance as revealed by higher LERs indicating that improved potato cultivars and hybrid maize are compatible for intercropping. Therefore, farmers can intercrop improved sweet potato cultivars with hybrid maize and apply 120-60-90 kg/ha of N, P and K in the intercrops to maximize yields.

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Section: Yield Response Of Improved Sweet Potato Cultivars To Intercr...supporting

confidence: 92%

Growth and Yield Response of Improved Sweet Potato Cultivars to Intercropping with Hybrid Maize and Inorganic Fertilizers

Katuromunda¹

2021

JPS

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“…When phosphorus is supplied to cassava, it presents positive responses, which vary mainly according to the genotype (Lima et al, 2018;Katuromunda et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

“…Tropical soils are characterized by a high degree of weathering and low levels of phosphorus in a form available to plants as well as low phosphorous mobility (Milić et al, 2019). Several studies have shown that the responses of crops to phosphate fertilization vary according to biotypes and abiotic factors, such as soil nutrient availability (Lima et al, 2018;Katuromunda et al, 2021;Silveira et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Accumulation and efficiency of phosphorus use in irrigated cassava cultivars in the Brazilian semiarid region

Alves

Silveira

Lopes

et al. 2022

Rev. bras. eng. agríc. ambient.

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Phosphorus is of fundamental importance for the energy supply necessary for plant metabolism, but it is still understudied for important agricultural crops such as cassava. The objective of this study was to evaluate the accumulation and efficiency of phosphorus use in different cassava cultivars in the semiarid region. Two experiments were carried out during two agricultural seasons 2018/2019 and 2019/2020 in Mossoró, Rio Grande do Norte state, Brazil. The experimental design was randomized blocks, in split plots, with four replicates. In the plots, five doses of phosphorus (P) (0, 60, 120, 180, and 240 kg ha-1 of P2O5) were applied in the planting furrow, and four cassava cultivars (Água Morna, BRS Gema de Ovo, Recife, and Venâncio) were cultivated in the subplots. The cultivars Água Morna and Recife export more phosphorus through their roots. The cultivars Venâncio and Água Morna show greater agronomic efficiency when fertilized with 60 kg ha-1 of P2O5. The apparent P recovery efficiency presented the following order: ‘BRS Gema de Ovo’ > ‘Água Morna’ > ‘Venâncio’ > ‘Recife’, with higher indices at the dose of 60 kg ha-1 of P2O5.

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“…Variety TMS 30572 produced the least number of stems per stand (1.86). Katuromunda et al (2021) also found that fertiliser boosted stem numbers. The study found that applying NPK fertiliser led to a substantial increase in stems for both types compared to the control.…”

Section: Influence Of Fertilizer Application Variety and Planting Den...mentioning

confidence: 87%

Effect of fertilizer, planting density and variety on growth and yield of stem cuttings of cassava

Mashuubu,

Mourice,

Kudra

et al. 2024

J. Current Opinion Crop Sci.,

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The shortage of cassava stem cuttings presents a significant constraint to cassava production in Kilosa district, Tanzania. To address this issue, a field experiment was conducted within the research plots of TARI Ilonga, Kilosa, to evaluate the impact of fertilizer application, planting density, and variety on cassava stem cutting yield. Employing a split-split plot design in a randomized complete block design (RCBD), the experiment featured variety, planting density, and rates of fertilizer combinations as main, sub, and sub-sub factors, respectively. The study focused on three improved varieties of cassava (Kiroba, Chereko, and Mkuranga 1), with planting densities of 10,000, 13,000, and 20,000 plants per hectare, and ten fertilizer treatment rates. Data collected encompassed soil physico-chemical characteristics of the site, total plant height, stem height, stem diameter, number of stem cuttings, and nodes per stem cutting. Analysis of the plant data involved variance analysis, with significant treatments distinguished using Tukey’s honesty significance test (p<0.05). Notably, the application of 150 kg N ha-1 resulted in statistically higher total plant height and stem height, while a planting density of 20,000 plants ha-1 combined with the Kiroba variety exhibited statistically higher numbers of stem cuttings ha-1. The study concludes that for effective stem multiplication, a planting density of 20,000 plants ha-1 and the application of N fertilizers at a rate of 150 kg N ha-1 are recommended.

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Yield Performance of Newly Developed Cassava Varieties in Response to Inorganic Fertilizers

Cited by 3 publications

References 26 publications

Growth and Yield Response of Improved Sweet Potato Cultivars to Intercropping with Hybrid Maize and Inorganic Fertilizers

Growth and Yield Response of Improved Sweet Potato Cultivars to Intercropping with Hybrid Maize and Inorganic Fertilizers

Accumulation and efficiency of phosphorus use in irrigated cassava cultivars in the Brazilian semiarid region

Effect of fertilizer, planting density and variety on growth and yield of stem cuttings of cassava

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