Site-Specific Nutrient Management for Irrigated Rice in South Central Region of Bangladesh

Authors

  • MAA Mamun 1Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706
  • SA Islam Bangladesh Rice Research Institute, Gazipur 1701
  • MS Islam Bangladesh Rice Research Institute, Gazipur 1701
  • AJ Mridha Bangladesh Rice Research Institute, Gazipur 1701
  • MA Saleque Bangladesh Rice Research Institute, Gazipur 1701

DOI:

https://doi.org/10.3329/baj.v20i2.37082

Keywords:

irrigated rice, nutrient omission, optimum yield, SSNM

Abstract

A site-specific nutrient management (SSNM) field trial was conducted for irrigated rice using five fertilizer treatments: i) omission of N, ii) omission of P, iii) omission of K, iv) NPK and v) farmers’ practice (FP). Substantial variation in the native N, P, and K supply was found among farmers’ fields. The indigenous soil K produced 4.5 to 5.0 t ha-1 but native P and N gave only rice yield of 3.5 to 4.0 t ha-1. The highest grain yield (6.0 to 7.5 t ha-1) was obtained from balanced fertilization, followed by FP (4.0 to 5.0 t ha-1).The optimal grain yield at Faridpur was obtained by using N, P and K at 135, 8 and 49 kg ha-1; 139, 9 and 42 kg ha-1; and 140, 10 and 43 kg ha-1 for high, medium and low land rice, respectively. However, for Gopalgonj district fertilizer doses of N, P and K were 140, 11 and 38 kg ha-1; 142, 10 and 42 kg ha-1; and 138, 10 and 49 kg ha-1; and for Madaripur district, 126, 8 and 46 kg ha-1; 120, 7 and 38 kg ha-1; and 99, 6 and 27 kg ha-1 for high, medium and low land rice, respectively. These predicted fertilizer doses increase farmers’ income and protect environment from pollution.

Bangladesh Agron. J. 2017, 20(2): 1-9

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Published

2018-06-21

How to Cite

Mamun, M., Islam, S., Islam, M., Mridha, A., & Saleque, M. (2018). Site-Specific Nutrient Management for Irrigated Rice in South Central Region of Bangladesh. Bangladesh Agronomy Journal, 20(2), 1–9. https://doi.org/10.3329/baj.v20i2.37082

Issue

Vol. 20 No. 2 (2017)

Section

Original Articles

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