Impact of organic manure and combination of N P K S, on yield, fruit quality and fruit mineral content of Khenazi date palm (Phoenix dactylifera L.) cultivar

Abstract

This study was carried out during three successive seasons 2011, 2012 and 2013 at a private orchard located in Al-Hello in Ajman Emirate (UAE). The experiment was designed to study the effect of organic manure and NPKS as soil application on yield, fruit quality, and fruit mineral nutrient content of Khenazi date palm cultivar grown in sandy soil. Fertilization treatments consisted of N1, 600g or N2, 1000g (urea 46%N), P 800g (triple superphosphate, 48% P2O5), K 1200g (potassium sulphate, 50% K2SO4) and S 700g sulphur (90% granular S), in addition to organic manure. Al experimental trees received 100g mixture of micronutrients, with the exception of the control. The results showed that combination treatments and organic manure significantly affected fruit weight, flesh weight, fruit volume, moisture content and fruit TSS. Application of different fertilization treatments significantly affected yield components of fruit, number of fruits/strand, fruit number/bunch, fruit set percent and total fruit yield / palm. The study revealed that combination of fertilizers improved fruit nutrient content of N, P, K, Ca, Mg, Fe, Zn, Mn and Cu. Moisture and TSS% content, number of fruits/strand, number of fruits/bunch, fruit nutrients content of Fe, Mn and Zn were significantly different due to the application of N1+K+S.

Genetic variability in selected date palm (Phoenix dactylifera L.) cultivars of United Arab Emirates using ISSR and DAMD markers

“…Dates are proved to be antioxidant and anti-mutagenic assets and considered as a very good source of natural antioxidants (Mansouri et al 2005). Date palm is one of the ultimate valuable fruiting tree in several arid and semiarid regions of the world and considered as a vital subsistence crop (Chao and Krueger 2007;Elsadig et al 2017). The flowering habit and time of fruit set in date palm are important factors determining the commercial production of date fruits.…”

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

“…With foliar zinc, boron and potassium foliar fertilization, Elsabagh [61] obtained a better performance in terms of yield, date quality and control of date palm fruit drop. Other studies have shown the positive impact of more extensive fertilization in terms of N, P, K, S and micronutrients on those performance characteristics for date palms cultivated in very sandy and very nutrient depleted soils [59,64]. The CND method shows that, except for N, most of the diagnosed nutrients can be found outside the none limiting ranges (Table 5).…”

“…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.…”

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

“…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.…”