MAXIMIZING PRODUCTIVITY AND QUALITY OF PEANUT (Arachis hypogea L.) by PROPER PHOSPHORUS FERTILIZER LEVEL AND Zinc APPLICATION TIME

Salama, Fares S.M.G. Salama S.M.G.

doi:10.21608/zjar.2024.380607

MAXIMIZING PRODUCTIVITY AND QUALITY OF PEANUT (Arachis hypogea L.) by PROPER PHOSPHORUS FERTILIZER LEVEL AND Zinc APPLICATION TIME

Document Type : Original Article

Author

Fares S.M.G. Salama S.M.G. Salama

Dept. Agron., Fac. Agric., Zagazig Univ., Egypt

10.21608/zjar.2024.380607

Abstract

During the two successive summer seasons of 2022 and 2023, two field experiments were performed in the experimental farm of the faculty of Agriculture, Zagazig University, Egypt, to investigate the effectiveness of phosphoric fertilizer levels and zinc foliar application timeon yield, yield attributes and quality of peanut/ groundnut seeds. Split plot design was used laying out P levels in main plots and allocating Znapplication timein the sub plots.Results exhibited the operative effects of Plevels on pod and seed numbers and weights. The uppermost pod number and weight/plant were the resultant of supplying 23.25 kg P₂O₅/fad. Zn application at pegging was conjoint with noteworthy increase for both seed number and weight/plant. Early application of Zn(35 days after sowing, 35 DAS) increased pigged flowers, while late application (65 DAS) promoted seed weight/plant. Yields of pods, seeds and the biological one besides the harvest index were sensibly affected ascribed to the treatments of P levels and Zn supply. Phosphorus levels affected vegetative growth efficiency, while the moderate P level (32.25 kg P₂O₅/fad.) has intrinsically influenced on peanut yield attributes and enhanced pod number and weight/plant, seed weight/plant as well as 100 seed weight. Zinc application time affected pod and seed yields. The interaction between P levels and and time of Zn application was significant, with seed yield being the decisive factor. Oil percentage is a varietal property, with Zn application time and P levels not significantly affecting seed content. Seed protein content was significantly different, with Zn being the substantial factor affecting protein content.P-uptake (PU) and nitrogen use efficiency (NUE) in peanut plants were significantly inverse affected by P levels and Zn application time. It is recommended to supply phosphorusat 23.25 P₂O₅ kg/fad., and apply Zinc 50 DAS at pegging face for affluence yields and high quality

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