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Sustainable yield and quality enhancement through biofertilizer application in BRRI Dhan 28 and black rice in coastal area of Bangladesh 


Citation :- Sustainable yield and quality enhancement through biofertilizer application in BRRI Dhan 28 and black rice in coastal area of Bangladesh. Crop Res. 60: 235-246
KHANDAKER BUSHRA RAHMAN, SHAKIL AHMED, SUMAIYA AKTER, RAYHAN AHMED, HUMAYUN KABIR, MAHIN ISLAM TALHA AND KAWSAR HOSSEN kawsar.ag@nstu.edu.bd
Address : Department of Agriculture, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh
Submitted Date : 9-08-2025
Accepted Date : 2-09-2025

Abstract

In Bangladesh the excessive use of chemical fertilizers on rice-based production system causes significant risks to soil health, ecological sustainability, and sustainable food security, as well as overlooking widespread nutritional deficiency. In this study, which is conducted at Noakhali Science and Technology University, Bangladesh, during the 2022-2023 Boro season, a sustainable option was investigated by examining the influence of integrated biofertilizers and chemical fertilizers on plant growth, yield, and nutrient composition of the conventional BRRI dhan 28 and nutrient-dense black rice (Oryza sativa L. indica). A randomized complete block design was employed with three treatments, T0 as control, T1 as the recommended chemical fertilizer, and T2 as Mixture of chemical fertilizers- 50% of recommended dose and biofertilizers (biochar 5 t/ha and vermicompost 2 t/ha). All data were collected and compared using analysis of variance on agronomic and nutritional attributes. The results indicated that the integrated biofertilizer treatment (T2) significantly enhanced all the growth and yield attributes for the two varieties. Interestingly, black rice yielded a superior grain yield of 9.82 t/ha over BRRI dhan 28, along with a denser nutrient profile with higher carbohydrate content (97.67 g/100g) and protein content (8.79 g/100g), along with superior antioxidant activity (68.7% inhibition of DPPH). Overall, using biofertilizers with reduced application of chemicals not only raises production but also drastically increases the nutritional value of rice, of which black rice is a superior type to increase food security as well as nutrition results in sustainable agricultural systems.

Keywords

Black rice potential BRRI Dhan 28 biofertilizer chemical fertilizer nutritional quality ​


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