Impact of Organic Manure Combinations on Performance and Rot Infection of Stressed-Jerusalem Artichoke Plants

Awad, Azza S.; Ahmed, Hoda

doi:10.21608/ejss.2018.6151.1216

Cited by 2 publications

(1 citation statement)

References 12 publications

(15 reference statements)

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“…Excessive nitrogen fertilization and low soil pH contribute to the development of S. sclerotiorum, whereas S. rolfsii thrives in moist and warm environments [16]. Avad and Ahmed [64] analyzed the influence of three types of fermented organic fertilizers, including farmyard, poultry and pigeon manure, and their combinations on the incidence of southern blight (caused by Sclerotium rolfsii), vegetative growth parameters, chemical composition, yield, and yield components in Helianthus tuberosus L., and found that all fertilizer combinations minimized the severity of infections.…”

Section: Mycological Analyses Of Tubers and Aerial Plant Partsmentioning

confidence: 99%

The Effects of Potassium Fertilization and Irrigation on the Yield and Health Status of Jerusalem Artichoke (Helianthus tuberosus L.)

et al. 2021

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The objective of this study was to determine the effects of potassium fertilization (applied to soil at 150, 250, and 350 kg K2O ha−1) and irrigation on the yield (fresh matter yield and dry matter yield of above-ground biomass and tubers) and the health status of tubers and leaves of three Jerusalem artichoke—JA (Helianthus tuberosus L.) cultivars (Topstar, Violette de Rennes, Waldspindel). The Topstar cultivar was characterized by the highest total tuber yield (60.53 Mg FM ha−1) and the highest above-ground biomass yield (65.74 Mg FM ha−1). An increase in the rate of potassium fertilizer to 350 kg K2O ha−1 did not affect total tuber yields. The greatest increase in above-ground biomass yields was observed in response to the potassium fertilizer rate of 150 kg K2O ha −1 (64.40 Mg FM ha−1). Irrigation increased tuber yields by 59% and above-ground biomass yields by 42% on average. Phytopathological analyses revealed that JA leaves were most frequently colonized by fungi of the genera Alternaria, Fusarium, and Epicoccum. Alternaria and Fusarium fungi were more prevalent in non-irrigated than in irrigated plots. A higher number of fungal pathogens was isolated from the leaves of cv. Violette de Rennes grown in a non-irrigated plot fertilized with 250 kg K2O ha−1. Tubers were most heavily colonized by fungi of the genera Penicillium, Fusarium, Alternaria, Botrytis, and Rhizopus. Fungal species of the genus Fusarium were isolated from tubers in all irrigated treatments, and they were less frequently identified in non-irrigated plots. Only the tubers of cv. Topstar grown in non-irrigated plots and supplied with 150 kg K2O ha−1 were free of Fusarium fungi. The number of cultures of pathogenic species isolated from Jerusalem artichoke tubers had a minor negative impact on fresh and dry matter yield.

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Section: Mycological Analyses Of Tubers and Aerial Plant Partsmentioning

confidence: 99%

The Effects of Potassium Fertilization and Irrigation on the Yield and Health Status of Jerusalem Artichoke (Helianthus tuberosus L.)

et al. 2021

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Improving Nutrients Uptake and Productivity of Stressed Olive Trees with Mono-Ammonium Phosphate and Urea Phosphate Application

Awad

Beheiry

2022

Agronomy

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Nutritional status improvement is a surrogate approach to overcoming undesirable soil conditions. This study was performed in sandy clay loam soil that was characterized by certain undesirable parameters (ECe = 6.4 vs. 7.2 dS m−1, CaCO3 = 8.8 vs. 9.2%, and pH = 7.78 vs. 7.89) on olive (Olea europaea, Arbequina cv.) in the 2020 and 2021 seasons to investigate the influence of two highly soluble phosphorus fertilizers, mono-ammonium phosphate (MAP) and urea phosphate (UP). The treatments included 0.336, 0.445, and 0.555 kg tree−1 for MAP1, MAP2, and MAP3 and 0.465, 0.616, and 0.770 kg tree−1 for UP1, UP2, and UP3, respectively, in comparison to granular calcium super-phosphate (GCSP) at the recommended rate (0.272 kg P2O5 equal 1.75 kg tree−1). This experiment was established according to a randomized complete block design. Generally, our results indicated that both MAP and UP applications surpassed GCSP for all studied parameters except leaf copper uptake in the 2021 season. Moreover, among the HSPFs applied, it was found that applying the maximum levels gave the best results. However, MAP3 gave the maximum values for shoot length, SPAD reading, and dry fruit matter. Moreover, UP3 produced the best results for the leaf area, olive tree yield, total olive yield, total fresh weight, flesh weight (FlW), fruit length (FrL), and leaf Fe content in both seasons.

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Impact of Organic Manure Combinations on Performance and Rot Infection of Stressed-Jerusalem Artichoke Plants

Cited by 2 publications

References 12 publications

The Effects of Potassium Fertilization and Irrigation on the Yield and Health Status of Jerusalem Artichoke (Helianthus tuberosus L.)

The Effects of Potassium Fertilization and Irrigation on the Yield and Health Status of Jerusalem Artichoke (Helianthus tuberosus L.)

Improving Nutrients Uptake and Productivity of Stressed Olive Trees with Mono-Ammonium Phosphate and Urea Phosphate Application

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