NPK Use Efficiency of some Sunflower Genotypes as Affected by Nano and Conventional Fertilizer Application | ||
| Egyptian Journal of Agronomy | ||
| Volume 47, Issue 4, December 2025, Pages 929-949 PDF (1.35 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/agro.2025.325306.1525 | ||
| Authors | ||
| Amal M. Metwaly* 1; T. H.A. Hassan2; E. R. Marzouk3; Eman I. El-Sarag4 | ||
| 1Oil crop section, field crop researches institute , Agriculture research center. | ||
| 2Dept. Oil crop, Inst. Res. Field Crop., Agric. Res. Cent., Giza, Egypt | ||
| 3Dept. Soil and water, Fac. Environ. Agric. Sci., Arish Univ., Egypt | ||
| 4Dept. plant prod., Fac. Environ. Agric. Sci., Arish Univ., Egypt | ||
| Abstract | ||
| Sunflower belonging to family Asteraceae is the most important oilseed crop, its ranks third in world total oil production after soybean and peanuts. Nanotechnology is a new approach to increase agricultural production. Nano-fertilizers provide some nano nutrients to enhance plant growth and production. A field experiment was conducted at North Sinai, Egypt (31ₒ 08ʹ 04.3" N, 33ₒ 49ʹ 37.2" E) during summer seasons (2021 & 2022) to study the effect of Nano and recommended NPK fertilizers. There were 28 treatments including seven sunflower genotypes (G-245, G-465, G-770, G-775, G-880, G-990, Giza120 cv.) and four fertilizer applications (Nano NPK as 100, 75, 50 %, NPK Recommended). Results showed that Giza-120 with treatment 75 % Nano surpassed in chlorophyll percent in all growth stage at both studied seasons. Also, Giza-120 with application of 50 % Nano gave the highest value in biological and Stover yield in 2022 season, while, G-245 genotype with 50% Nano gave the lowest value in total phenols and this the best. Generally, it recommended to cultivate Giza120 with 100 % Nano NPK and/or 75, 50 and 25 %; as this treatment responded positively to Nano application and gave the highest seed yield (t fed-1) followed by G-245 genotype. G-465 and G-245 genotypes with control treatment (recommended NPK) were superior for oil content % and oil yield (t fad-1) at both seasons. Using all treatments (Nano 100, 75 & 50%) x Giza 120 responded positively in seed without hull, protein yield and protein without content in two seasons. | ||
| Keywords | ||
| Genotypes; sunflower; Nano NPK; NPK recommended | ||
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