El-Ghany Mona F Abd, El-Kherbawy Mohamady I, Abdel-Aal Youssef A, El-Dek Samaa I, Abd El-Baky Tarek
Soil Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt.
Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef 62511, Egypt.
Nanomaterials (Basel). 2021 Oct 30;11(11):2913. doi: 10.3390/nano11112913.
Recently, nanofertilizers are being tested as a new technology, either for soil or foliar applications, to improve food production and with a reduced environmental impact. Nano calcium phosphate (NCaP) was successfully synthesized, characterized and applied in this study. A pot experiment was carried out in two successive seasons in 2016 and 2017 on ( L.) plants to obtain the best phosphorus treatments. The results were applied in a field experiment during the 2018-2019 season. Single superphosphate (SSP) at 30 and 60 kg PO fed and NCaP at 10%, 20% and 30% from the recommended dose were applied to the soil. Foliar application involved both monoammonium phosphate (MAP) at one rate of 2.5 g L and NCaP at 5% and 10% from the MAP rate. The results of all experiments showed that NCaP significantly increased the shoot and root dry weights, the nutrient content in the shoot and root, the yield components, the nutrient concentration and crude protein percentage in pods of the snap bean plants compared with traditional P. The greatest increase was obtained from a 20% NCaP soil application in combination with a 5% NCaP foliar application. The present study recommends using NCaP as an alternative source of P to mitigate the negative effects of traditional sources.
最近，纳米肥料作为一种新技术正在接受测试，可用于土壤或叶面施肥，以提高粮食产量并减少对环境的影响。本研究成功合成、表征并应用了纳米磷酸钙（NCaP）。2016年和2017年连续两个季节对（L.）植物进行了盆栽试验，以获得最佳的磷处理方法。研究结果应用于2018 - 2019季节的田间试验。将30和60千克磷养分的过磷酸钙（SSP）以及推荐剂量的10%、20%和30%的NCaP施用于土壤。叶面施肥包括施用一种浓度为2.5克/升的磷酸一铵（MAP）以及MAP用量5%和10%的NCaP。所有实验结果表明，与传统磷肥相比，NCaP显著增加了菜豆植株地上部和根部的干重、地上部和根部的养分含量、产量构成因素、豆荚中的养分浓度和粗蛋白百分比。从土壤施用20%的NCaP与叶面施用5%的NCaP相结合中获得了最大的增幅。本研究建议使用NCaP作为磷的替代来源，以减轻传统来源的负面影响。
