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Role of potassium in enhancing growth, yield and quality of maize (Zea mays L.)

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Research Paper 01/06/2020
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Role of potassium in enhancing growth, yield and quality of maize (Zea mays L.)

Amjed Ali, Muhammad Adnan, Muhammad Ehsan Safdar, Muhammad Asif, Athar Mahmood, Mubashar Nadeem, Muhammad Arshad Javed, Salman Ahmad, Rafi Qamar, Hafiz Muhammad Bilal, Bilal Ahmad Khan, Muhammad Mohsin Amin, Ali Raza
Int. J. Biosci.16( 6), 210-219, June 2020.
Certificate: IJB 2020 [Generate Certificate]
Key: MaizeNutrientsPotassiumProductionYield

Abstract

Maize (Zea mays L.) is very important crop which serve as both food and feed purpose. Its average production is very low than its potential yield due to inadequate level nutrients application particularly potassium (K). Therefore, a trial was laid out at COA, UOS, Pakistan to evaluate the effect of different doses of potassium on maize. Five different doses of potassium (0, 40, 80, 120 and 160 kg ha-1) were applied under RCBD with three number of replications. Data regarding plant height (cm), cob length (cm), cob diameter (cm), no. of grains row per cob, no. of grains per row, no. of grains per cob, grain yield (kg ha-1), 1000-grain weight (g), biological yield (kg ha-1), harvest index (%), crude protein (%) and crude oil (%) were noted by standard procedures. Results indicated that highest plant height (210.47 cm), cob length (21.56 cm), cob diameter (6.83cm), no. of grains rows per cob (16.43), no. of grains per row (38.63), no. of grains per cob (593.43), grain yield (8089kg ha-1), 1000-grain weight (439.53 g), biological yield (26015kg ha-1), crude protein (7.66 %) and crude oil (3.66%) were found. It is concluded from the experiment that potassium level (160 kg ha-1) is optimum for achieving maximum yield of maize crop.

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