Response of Date Palm Trees to Different Nitrogen and Potassium Application Rates

Ezz, Thanaa; Kassem, H. A.; Marzouk, H.A.

doi:10.17660/actahortic.2010.882.84

Cited by 5 publications

(6 citation statements)

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“…This weak effect of the P nutrient may be due to a characteristic of the Deglet Nour cultivar, which has a very low P leaf concentration compared to other cultivars. In fact, P leaf contents found in cultivars in Egypt vary from 1.2-7.0 g kg −1 [3,54,55], whereas P leaf contents measured in our study were below 1.0 g kg −1 , a value close to those found in California for the same Deglet Nour cultivar, Krueger [56]. The high proportion of specimens (91%) in the optimal range of N may be due to farming practices.…”

Section: Comparison Between Cva and Cndsupporting

confidence: 66%

“…The other nutrients are also important. Many studies focus on the mineral nutrition of date palms in macronutrients and micronutrients and show their importance in improving production in quantity and quality [3,[59][60][61][62][63][64]. In Tunisia, Ben Ammara, Ben Hmida and Ben Mimoun [63] have shown that the yield, date size and leaf nutrient composition significantly increased after potassium fertilization.…”

Section: Comparison Between Cva and Cndmentioning

confidence: 99%

“…Nevertheless, determination of the optimum levels of fertilizers could result in higher yield and better fruit quality that could increase farmers' incomes. [2,3]. To improve fertilization and cultural practices, soil testing is a tool for assessing the amount of plant-available nutrients in the soil.…”

Section: Introductionmentioning

confidence: 99%

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Nutrient Diagnosis Norms for Date Palm (Phoenix dactylifera L.) in Tunisian Oases

et al. 2020

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Several studies have pointed out the promising use of nutritional diagnosis methods for the determination of optimum nutrient contents in plant tissues. The present investigation was carried out in different oases in Southern Tunisia to determine reference values for the interpretation of leaf analyses of date palm (Phoenix dactylifera) Deglet Nour cultivar with the Critical Value Approach (CVA) and the Compositional Nutrient Diagnosis (CND). A database (n = 100) of yield and mineral concentrations taken from date palm leaflets in October, at the maturity stage of dates, was used. The yield cut-off between low-yield and high-yield subpopulations, selected from cumulative variance ratio functions across survey data, was 76 kg palm−1 and the global nutrient imbalance index (CNDr2) was 10.06. Critical CND nutrient indices were found to be symmetrical around zero as follows: (1.59; +1.59) for IN, (−0.44, +0.44) for IP, (−0.63, +0.63) for IK, (−0.94, +0.94) for ICa, (−1.05, +1.05) for IMg, (−0.80, +0.80) for IFe, (−0.74, +0.74) for ICu, (−0.80, +0.80) for IB, (−0.93, +0.93) for IZn, (−1.04, +1.04) for IMn, and (−1.03, +1.03) for the residual value. Compared to CND, the CVA approach shows weak detection of the nutrients that cause nutritional imbalance. CND indices revealed, except for N, the presence of nutrient imbalances and the necessity to correct the mineral nutrition of date palm in the Kebeli oases.

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Section: Comparison Between Cva and Cndsupporting

confidence: 66%

Section: Comparison Between Cva and Cndmentioning

confidence: 99%

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Nutrient Diagnosis Norms for Date Palm (Phoenix dactylifera L.) in Tunisian Oases

et al. 2020

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“…Application of vinasse is a common practice in sugarcane cultivated areas and can fully substitute K and partially P on crops fertilization (Gomez and Rodriguez, 2000). The promotive effect of potassium fertilization on growth, nutrient status and fruiting of date palm were emphasized by Bamiftah, 2000;Ezz et al, 2010;Harhash and Abdel-Nasser, 2010;Al-Obeed et al, 2013;Awad et al, 2014;El-Sadig et al, 2017;Elsayed et al, 2018 andAl-Hajaj et al, 2020. They concluded that using different forms of potassium fertilization had a positive effect on fruit set and yield as well as fruit quality.…”

Section: Discussionmentioning

confidence: 99%

“…Over that one of the advantages of using nanofertilizers is that application can be done in smaller amounts than when using common fertilizers (Selivanov and Zorin, 2001;Reynolds, 2002;Raikova et al, 2006;Batsmanova et al, 2013 andSubramanian et al, 2015). The yield and fruit quality of date palm trees were greatly varied according to Kfertilization sources and methods (Bamiftah, 2000;Ezz et al, 2010;Awad et al, 2014;Abdalla, 2016;Elsadig et al, 2017;Elsayd et al, 2018 andAl-Hajaj et al, 2020). So, the present study aimed to investigate the response of Zaghloul date palm to using nanopotassium, potassin and vinasse application.…”

Section: Introductionmentioning

confidence: 99%

Effect of nano-potassium fertilization on fruiting of Zaghloul date palm

Alsalhy

Al-Wasfy

Badawy

et al. 2021

SVU-International Journal of Agricultural Sciences

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This investigation was conducted during the two successive seasons i.e. 2019 and 2020 on Zaghloul date palm grown at the experimental orchard, Faculty of Agriculture, South Valley University, Qena, Egypt. This work conducted to study the effect of different sources of potassium fertilizers on fruiting of Zaghloul date palm under Qena condition. Potassium fertilization via nano-technology, vinasse and potassin were used. The experiment was arranged in a complete randomized design with three replications. It is evident from the obtained results that using nano-potassium, either soil dressing or foliar spray, as well as foliar spray of vinasse or potassin significantly increased the fruit retention, bunch weight and yield/palm compared to fertilize by potassium sulphate (check treatment). Also, these treatments significantly improved dates quality in terms of increasing fruit weight, flesh percentage, TSS, sugar percentages and anthocyanin contents moreover, decreasing total acidity and total tannins compared to fertilize with the recommended potassium doses via potassium sulphate. From the results, it could be concluded that fertilized Zaghloul date palm with potassium fertilization via foliar spray of either nano-potassium, vinasse or potassium to improve the fertilization efficiency and get high yield with best dates quality. In addition, hasten advance the fruit ripening and overcome potassium fertilization problems.

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Date palm cultivation: A review of soil and environmental conditions and future challenges

et al. 2023

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Date palm (Phoenix dactylifera L.) fruit is one of the ancient crops that have been cultivated for thousands of years in the arid regions of the Middle East and North Africa.Its nutritional and economic importance has extended the cultivation to other countries with suitable environmental conditions. Despite the large expansion in date palm cultivation and the associated improvement in its yield and quality over the last few decades, challenges remain in its cultivation and sustainability. Here, we review:(1) the current status of date palm cultivation, (2) the key environmental and soilrelated factors influencing its cultivation and productivity, and (3) the challenges under global change in addition to assessing the future potentials for improvements and sustainability. The global production of date palm has increased by 18% during the last ten years, reaching 8.53 million tons, on a total area of 1.11 million ha. Water scarcity and salinity stresses are the major constraints affecting date palm productivity, which is a serious issue in arid regions, where water resources are becoming depleted and soil is becoming increasingly salinized due to limited rainfall, high evapotranspiration, and incorrect irrigation. Although date palm can tolerate salinity up to 12 dS m À1 , accumulation of salts in soil strongly reduces the yield. The main cultivation areas are dominated by soils of sandy texture with high pH and a low capacity for water and nutrient retention. Organic fertilizers increase water and nutrient retention. There is a lack of long-term studies (e.g., ≥10 years) designed to monitor date palm cultivar responses to abiotic stresses as well as to nutrition and management practices. Future challenges facing date palm cultivation mainly include water shortages, extremely high temperatures, salinity, and soil degradation, as well as diseases and pests. The implementation of efficient management practices, including modern irrigation systems, selecting cultivars most suitable for the local environmental conditions, and increasing soil water and nutrient retention, help to sustain date palm cultivation and productivity.

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Response of Date Palm Trees to Different Nitrogen and Potassium Application Rates

Cited by 5 publications

References 0 publications

Nutrient Diagnosis Norms for Date Palm (Phoenix dactylifera L.) in Tunisian Oases

Nutrient Diagnosis Norms for Date Palm (Phoenix dactylifera L.) in Tunisian Oases

Effect of nano-potassium fertilization on fruiting of Zaghloul date palm

Date palm cultivation: A review of soil and environmental conditions and future challenges

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