ISSN : 2663-2187

EFFECT OF NITROGEN AND ZINC FERTILIZER LEVELS ON THE GROWTH AND YIELD OF SUNFLOWER (HELIANTHUS ANNUUS L.)

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Najaf Ali Buriro, Habib Rehman Memon, Asif Ali Kaleri, Naeem Ahmad Buriro, Imran Ali Jamro, Sonia Fazal, Dad Muhammad Baloch, Saraj Ahmed.
» doi: 10.48047/AFJBS.6.15.2024.13777-13788

Abstract

In the case of sunflower production, precision agriculture can be used to determine the optimal fertilizer application rates and timings based on the specific soil and climatic conditions of a particular field. The response of sunflower to macro- and micronutrient applications has been observed. Field conditions were used to assess the effectiveness of applying nitrogen, zinc, and boron alone or in a mixture to improve the growth and production of sunflower HO-1. The experiment followed an RCBD design with a net plot of 5 m x 4 m (20 m2) .The study examined the impact of different applied soil fertilizers, including NPK. The suggested doses were T1 = Nitrogen + Zinc @ 00 kg ha-1 (control), T2 = Nitrogen + Zinc @ 100 kg ha-1, T3 = Nitrogen @ 150 kg ha-1, T4 = Zinc @ 15 kg ha-1, T5 = Zinc @ 20 kg ha-1, T6 = Nitrogen + Zinc @ 100 + 15 kg ha-1, T8 = Nitrogen + Zinc @ 150 + 15 kg ha-1, and T9 = Nitrogen + Zinc @ 150 + 20 kg ha-1. For the best plant height (176.41 cm), stem girth (5.64 cm), head diameter (19.57 cm), number of seeds per head (g), seed weight (61.52 kg head-1), seed index (1000 seed weight, g), seed yield (2346 kg ha-1), and oil content (43.77%), the soil had to be fertilized with 150 kg of nitrogen and 20 kg of zinc. The findings suggest that the combined application of nitrogen + zinc 150 + 20 kg ha-1 as soil fertilizers emerged as the most effective treatment for achieving maximum plant growth and seed yield in sunflower crops. As farmers and researchers continue to seek sustainable practices, the insights from this study contribute valuable information to the ongoing dialogue surrounding enhanced crop productivity and quality.

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