Publication Date: 2024/02/02
Abstract: The study was conducted to evaluate the performance of organic fertilizers on cotton yield and soil nutrients at Cotton Research Farm of Cotton Development Board located at Jagodishpur, Chawgacha, Jashore during the crop growing season of 2021 and 2022 using the seeds of genotype CB Hybrid-1 planted in a spacing of 90 × 35 cm. The experiment was laid out in a RCBD design with three replications. The experimental treatments were consisted of different doses of cow dung and processed organic fertilizers of three different sources (a, b and c). The treatments were: T1 = control (zero fertilizer), T2 = 10.526 t ha-1 of cow dung, T3 = 3.571 t ha-1 of processed organic fertilizer (a), T4 = 4.225 t ha-1 of processed organic fertilizer (b), T5 = 5.0 t ha-1 of processed organic fertilizer (c), T6 = 1⁄2 cow dung + 1⁄2 recommended fertilizer dose (RFD) of N, P, K, S, B, Zn and Mg, T7 = 1⁄2 (a) + 1⁄2 RFD of N, P, K, S, B, Zn and Mg, T8 = 1⁄2 (b) + 1⁄2 RFD of N, P, K, S, B, Zn and Mg and T9 = 1⁄2 (c) + 1⁄2 RFD of N, P, K, S, B, Zn and Mg. The trend of nutrients was smaller but increase was observed. The highest increase of total OM, total N, P, K, S, Zn and B were 7.89%, 10.0%, 8.27%, 9.09%, 9.0%, 8.81%, 8.33% respectively and those were recorded in T5, T2, T6, T3, T7, T7 and T5 treatments respectively in the end of second year. The results indicated that the half amount of organic fertilizer (b) along with 1⁄2 RFD (T8) produced the maximum seed cotton (2.49 t/ha) in 2021. But sole organic fertilizer at the rate of 4.225 t ha-1 (source- b) produced maximum seed cotton (2.51 t/ha) in 2022. Amendment of sole cow dung gave maximum BCR of 2.34 and 2.69 in 2021 and 2022 respectively. The treatments T3, T6, T7 and T8 might be the optimum treatment on the basis of BCR. Application of organic fertilizer with inorganic offers higher yield of seed cotton and economic returns with an increase of soil nutrients.
Keywords: Amendment, Fertilizer, Increase, Nutrient, Organic.
DOI: https://doi.org/10.5281/zenodo.10608410
PDF: https://ijirst.demo4.arinfotech.co/assets/upload/files/IJISRT24JAN781.pdf
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