Application of Different Levels of Humic Acid on Two Cotton Varieties and Its Effects on Yield Quantity and Quality under the Agro-Climatic Conditions of Balkh Province

Mohammad Akbar Ansari; Mohammad Zahir Farahmand; Khuja Safiullah UIsmani

doi:10.62810/jnsr.v3i4.364

Authors

Mohammad Akbar Ansari Department of Soil Science and Irrigation, Faculty of Agriculture, Balkh University, Balkh, Afghanistan
Mohammad Zahir Farahmand Department of Soil Science and Irrigation, Faculty of Agriculture, Balkh University, Balkh, Afghanistan
Khuja Safiullah UIsmani Department of Soil Science and Irrigation, Faculty of Agriculture, Balkh University, Balkh, Afghanistan

DOI:

https://doi.org/10.62810/jnsr.v3i4.364

Keywords:

Cotton, Humic acid, Performance, Treatment, Variety, Yield components

Abstract

To determine the maximum yield performance of different levels of humic acid on two cotton varieties (Sanroof 1155 and Sanroof 610), a field experiment was conducted using a Randomized Complete Block Design (RCBD) with three replications and four treatments: (R1T0), (R2T0), (R3T0) as the control (without humic acid), (R1T1), (R2T1), (R3T1) with the recommended dose (5 L/ha), (R1T2), (R2T2), (R3T2) with 1.5 times the recommended dose (7.5 L/ha), and (R1T3), (R2T3), (R3T3) with double the recommended dose (10 L/ha). Data related to growth, yield components. The measured parameters included: number of bolls per plant, plant height, 50% flowering date, seed cotton yield (kg/ha), 100-seed weight (g), and fiber length and strength (mm). In Sanroof 1155, the highest growth performance was observed in plant height (168 cm in R1T0), number of bolls per plant (85 bolls in R3T3), 100-seed weight (13.4 g in R3T3), seed cotton yield (2700 kg/ha in R3T3), and fiber strength (35 mm in R2T3), showing significant improvement. In Sanroof 610, the highest values were observed in plant height (146 cm in R1T0), number of bolls per plant (34 bolls in R3T3), 100-seed weight (15.94 g in R2T3), seed cotton yield (2271 kg/ha in R2T3), and fiber strength (34 mm in R3T3), also indicating significant enhancement. The results revealed that the third treatment (10 L/ha of humic acid) led to the most notable improvements, with Sanroof 1155 performing best, followed by Sanroof 610 under the agro-climatic conditions of Balkh province.

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