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

Awad, Azza S.; Beheiry, Hamada R.

doi:10.3390/agronomy12102390

Cited by 3 publications

(1 citation statement)

References 39 publications

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“…Balanced fertilization is the best agronomic practice for soil management in plants grown under stressed conditions. The study by Hussein et al [24] evaluated the potential performances of two types of highly soluble phosphorus fertilizers (HSPFs), namely, monoammonium phosphate (MAP) and urea phosphate (UP), in comparison to the most widely used phosphate fertilizer, granular calcium super-phosphate (GCSP with a high pH > 7.0), in an attempt to overcome the problem of P fixation and the unavailability of micronutrients under some abiotic stresses in olive trees (Olea europaea L.), trees grown under multi-stress conditions (calcareous alkaline soils), which, in turn, affect the growth and productivity characteristics. In short, the application of HSPFs under these conditions might be an alternative surrogate to improve nutrient efficiency and thus improve olive productivity.…”

Section: Overview Of This Simentioning

confidence: 99%

Crop Nutrient Requirements and Advanced Fertilizer Management Strategies

Noulas,

Torabian,

Qin

2023

Agronomy

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Section: Overview Of This Simentioning

confidence: 99%

Crop Nutrient Requirements and Advanced Fertilizer Management Strategies

Noulas,

Torabian,

Qin

2023

Agronomy

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The essential oil blend Agolin Ruminant L reduces methane production in vitro and in vivo when included in the drinking water of cattle

Batley,

Romanzini,

da Silva

et al. 2024

Journal of Animal Science

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Two experiments were conducted to determine the potential for the essential oil blend Agolin Ruminant L (Agolin) to reduce enteric methane (CH4) emissions from beef cattle when delivered via the drinking water. Experiment 1 evaluated aqueous solutions of Agolin (50 mg/L) and a non-protein nitrogen and mineral solution (uPRO ORANGE [uPRO]; 1.7 mL/L) individually and in combination, where Agolin was added to concentrated uPRO at 3, 4.5, 6% Agolin (w/w) prior to dilution with water at 1.7 mL/L, for a total of five treatments. These were incubated for 48 h with a medium-quality Rhodes grass (Chloris gayana) hay substrate, with gas production, CH4 concentration in gas, and digestibility measured in vitro. In Exp. 2, Droughtmaster steers (n = 24) were fed a basal diet of Rhodes grass hay and were allocated to one of three water treatments (n = 8/treatment) supplemented with either uPRO (2.27 mL uPRO/L water), or one of two inclusion rates of Agolin in combination with uPRO (2.27 mL uPRO and 6 µL Agolin/L water or 2.27 mL uPRO and 24 µL Agolin/L water) with enteric CH4 emissions, feed and water intake, and live weight gain (LWG) measured over 56 d. In Exp. 1, the inclusion of Agolin in uPRO at 6% w/w resulted in a reduction in CH4 production (15.8%; P = 0.003) and the proportion of CH4 in the gas produced (24.5%; P < 0.001). In Exp. 2, steers consuming the lower quantity of Agolin via drinking water had a 16.4% (P = 0.0027) reduction in CH4 production over the experiment, declining from 140 g/d during week 1 to 117 g/d in week 8. This inclusion rate of Agolin in the drinking water also resulted in a 25 g (17.6%) CH4/d decrease in emissions by steers compared to control steers (P = 0.0205). However, no significant differences in CH4 yield (g CH4/kg dry matter intake), or CH4 intensity (g CH4/kg LWG) by steers was observed between treatments. These results demonstrate that Agolin reduces CH4 emissions when mixed in aqueous solution under in vitro and in vivo conditions, providing a potential method to reduce enteric CH4 emissions from cattle in extensive production systems.

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Response of Multi-Stressed Olea europaea Trees to the Adjustment of Soil pH by Acidifying Agents: Impacts on Nutrient Uptake and Productivity

2023

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Soil pH is the most important factor in evaluating plant nutritional status due to its close association with nutrient availability. In the 2018 and 2019 seasons, two field experiments were conducted to evaluate the performance of olive trees (Olea europaea, Picual cv.) grown in sandy clay loam soil under multi-abiotic stresses with the application of three different acidifying agents (AAs), acetic (AC), citric (CA), and sulfuric (SA) acid, at two doses (25 and 50 cm3; AC1 and AC2, CA1 and CA2, and SA1 and SA2, respectively), as compared with a control treatment. This study was established according to a randomized complete block design. In general, our results showed that all the AAs applied surpassed the control treatment with respect to all the studied parameters except for the leaf iron content. Furthermore, the trees treated with CA yielded the best results in terms of the leaf nitrogen, calcium, and magnesium contents; the physiological and growth parameters (except for the performance index); the total fruit weight, flesh weight, and flesh dry matter; the fruit diameter; the oil content; and the total olive yield. Furthermore, the maximum leaf potassium, manganese, zinc, and copper contents were obtained in the trees growing in soil injected with AC. The correlation coefficient fluctuated between positive and negative among the studied characteristics.

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

Cited by 3 publications

References 39 publications

Crop Nutrient Requirements and Advanced Fertilizer Management Strategies

Crop Nutrient Requirements and Advanced Fertilizer Management Strategies

The essential oil blend Agolin Ruminant L reduces methane production in vitro and in vivo when included in the drinking water of cattle

Response of Multi-Stressed Olea europaea Trees to the Adjustment of Soil pH by Acidifying Agents: Impacts on Nutrient Uptake and Productivity

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