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

Abstract

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.

Effect of nano N fertilizer on growth, fruiting and the fruits nutritive value of zaghloul date palm

“…Nano-fertilizers are known to release nutrients slowly and steadily in a regulated pattern in correspondence with the crop requirements as well as extend the fertilizer effect period which may assist in improving and development the nutrient use efficiency. It is clear that there is a wide range of opportunity for nanotechnology to play an important role in improving fertilizers (Ditta, 2012).as the nano-fertilizers are worked to release nutrients slowly over a long period of time, which leads to less the loss of nutrients and reducing environmental contamination (Heller and Atkinson, 2007;Subramanian and Sharma, 2009;Subramanian et al, 2015;Roshdy and Refaai, 2016;Mustafa and Zaied-Nagwa, 2019;El-Salhy et al, 2021). using nanotechnology in the fertilizers can be to improved the nutritive value of the fruits i.e ( fats%, antioxidants activity, ash%, proten% and total phenols), due to biological processes associated with fruit maturity which leads to increasing nutritive value of the fruits and which is considered as a food additive and complementary food.…”

“…(Al-Shahib and Marshall, 2003;Sulieman et al, 2012). The positive effect of nanotechnology fertilizers in improving growth and fruiting, thereby increasing productivity and fruit quality for different horticultural crops and achieving sustainable agriculture were emphasized by (Baruah and Dutta, 2009;Remya et al, 2010;Sheykhbaylou et al, 2010;Mousavi and Rezaei, 2011;Bozorgi, 2012;Refaai, 2014;Roshdy and Refaai, 2016;Jubeir and Ahmed, 2019;Zahedi et al, 2020;El-Salhy et al, 2021).…”

“…So the main goal to maximize nutrient uptake by the palms from fertilizers for best growth, productivity and fruit quality (Al-Kharusi et al, 2009;Tung et al, 2009;Harhash and Abdel-Nasser, 2010;Marzouk-Hend, 2011).The nanotechnology has made progress in many sectors such as information and communication technology, healthcare and energy this allowed this technology to invade the agricultural sector as well as became promising in it which can help increasing of resources use efficiency especially fertilizers. Using nano fertilizers makes nutrients greater available to plant through led to regulate the release of nutrients from fertilizers and therefore result in enhance nutrient use efficiency and reduce in nutrient doses (Xiu-Mei et al, 2006;Heller and Atkinson, 2007;Subramanian and Sharma, 2009;De Rosa et al, 2010;Mustafa and Zaied-Nagwa, 2019;El-Salhy et al, 2021). Thought to be nanotechnology will be an effective tool to reduce gap between food production and increasing world demand on food.…”

The improvement of antioxidant contents and fruit quality of Sukkary date cultivar using various Potassium levels and Irrigation interval

“…Studies have been carried out to overcome these problems and to improve date quality using different fertilization regimes (Behrooznam & Shirzadi, 2007;Desouky et al, 2007;Khayyat et al, 2007;Harhash & Abdel-Nasser, 2010). Shawky et al (1999) recommended 1.5 kg of potassium sulfate/palm for the highest yield and quality of Seewy' date palm, whereas Bamiftah (2000) recommended 2-3 kg of potassium for sulfate/palm for 'Zaghloul' dates. However, responses to these treatments have been limited and could be due to the time of application and/ or the amount applied in each dose.…”

Effect of Foliar Spraying of Calcium and Boron Nano-fertilizers on Growth and Fruiting of Certain Pomegranate Cultivars

“…Foliar sprays of boron and calcium improved the yield and fruit quality and reduced the fruit cracking and thus resulted in significantly increased the economic returns (Sheikh and Manjula, 2012;Goargiuas, 2016;Korkmez et al, 2016, Masoud et al, 2019and Morwal & Das, 2021. One of the advantages of using nano-fertilizers is that application can be done in smaller amounts than when using common fertilizers, hence could be more efficient, decreased soil pollution and other environmental risks that may occur when using chemical fertilizers (Selivanov and Zorin, 2001;Naderi et al, 2011 andEl-Salhy et al, 2021). Foliar spray with nano-boron fertilizer significantly increased the nutritional status, increased the yield and significantly fruit quality and decreased the fruit cracking of pomegranate (Khalil &Aly, 2013 andDavarpanaha et al, 2016).…”