The Effect of Mineral and Biological Nitrogen Fertilization, Foliar Spraying with Amino Acids + Zinc, Algae Extract, and Potassium Silicate, and Their Effect on the Productivity and Quality of Strawberry Plants.
Horticulture Department, Faculty of Agriculture, Benha University, Egypt
10.21608/assjm.2025.385475.1361
Abstract
During the winter, 2 field experiments were conducted in both seasons (2022/2023 and 2023/2024). We investigated the effects of mineral and biological nitrogen fertilizers, growth stimulants applied as foliar sprays, on vegetative growth, leaf chemical composition, strawberry yield, and fruit quality. This experiment included 16 treatments, with a total of four nitrogen fertilization treatments in four foliar sprays, as follows: F1: 100% of the recommended dose of mineral nitrogen fertilizer per acre (NRD), F2: 75% of NRD + bio-nitrogen, F3: 50% of NRD+ bio-nitrogen, F4: 25%of NRD + bio-nitrogen ,The dose of biofertilizer (Nitropin) was 20 liters/acre. In addition to the foliar spray, we used Kelp grow set (seaweed extract) at a concentration of 2.5 ml/L, Growmin (amino acid + zinc) at a concentration of 5 ml/L, and Cesar K (potassium silicate) at a concentration of 5 ml/L, in addition to the control treatment. The results showed that adding the recommended dose of mineral nitrogen fertilizer (150 kg N/acre) was equivalent to adding 450 kg ammonium nitrate at a concentration of 33% N/acre, which is 75% of NRD + bio-nitrogen plus seaweed extract group achieved the highest values in all measured growth parameters, leaf chemical components (total nitrogen, phosphorus, potassium, and carbohydrates), fruit productivity and its components (exportable yield, marketable yield, and total fruit yield per plant and feddan), as well as chemical fruit quality (total soluble solids, total acidity, vitamin C, total sugars, and anthocyanin content) of strawberry plants during both study seasons.
Rashad, D., HALWA, S., & Mohamed, M. (2025). The Effect of Mineral and Biological Nitrogen Fertilization, Foliar Spraying with Amino Acids + Zinc, Algae Extract, and Potassium Silicate, and Their Effect on the Productivity and Quality of Strawberry Plants.. Annals of Agricultural Science, Moshtohor, 63(2), 57-68. doi: 10.21608/assjm.2025.385475.1361
MLA
Dina Khaled Rashad; SAMER SAID HALWA; Mostafa H. M. Mohamed. "The Effect of Mineral and Biological Nitrogen Fertilization, Foliar Spraying with Amino Acids + Zinc, Algae Extract, and Potassium Silicate, and Their Effect on the Productivity and Quality of Strawberry Plants.", Annals of Agricultural Science, Moshtohor, 63, 2, 2025, 57-68. doi: 10.21608/assjm.2025.385475.1361
HARVARD
Rashad, D., HALWA, S., Mohamed, M. (2025). 'The Effect of Mineral and Biological Nitrogen Fertilization, Foliar Spraying with Amino Acids + Zinc, Algae Extract, and Potassium Silicate, and Their Effect on the Productivity and Quality of Strawberry Plants.', Annals of Agricultural Science, Moshtohor, 63(2), pp. 57-68. doi: 10.21608/assjm.2025.385475.1361
VANCOUVER
Rashad, D., HALWA, S., Mohamed, M. The Effect of Mineral and Biological Nitrogen Fertilization, Foliar Spraying with Amino Acids + Zinc, Algae Extract, and Potassium Silicate, and Their Effect on the Productivity and Quality of Strawberry Plants.. Annals of Agricultural Science, Moshtohor, 2025; 63(2): 57-68. doi: 10.21608/assjm.2025.385475.1361
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