Abstract

An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh in transplant Aman season 2008 to find out the effect of urea super granules (USG), prilled urea (PU) and poultry manure (PM) on the yield and yield attributes of transplant Aman rice varieties. Two transplant Aman rice varieties viz. BRRI dhan41 and BRRI dhan46 and ten levels of integrated nutrient management encompassing USG, PU and PM were tested following randomized complete block design with three replications. It was observed that variety BRRI dhan41 gave higher grain yield than BRRI dhan46. For fertilizer effect, the highest grain yield (5.17 t ha-1) was obtained from full dose of USG (1.8g) and other inorganic fertilizers, which was similar to that obtained from full dose of USG (1.8g) + PM at 2.5 t ha-1 followed by full dose of PU + PM at 2.5 t ha-1. The lowest grain yield was obtained in the control treatment. In case of interactions, the highest grain yield was obtained in BRRI dhan41×1.8g USG and other inorganic fertilizers which was similar to that of the same dose of USG with PM at 2.5 t ha-1 and the lowest yield was obtained in the control treatment. It was assessed that a considerable portion (31.25%) of PU nitrogen could be saved by using USG (1.8g) together with other inorganic fertilizers or with PM at 2.5 t ha-1. Keywords: Urea super granules; Prilled urea; Poultry manure; Yield; Transplant Aman rice variety DOI: 10.3329/jbau.v7i2.4732 J. Bangladesh Agril. Univ. 7(2): 259-263, 2009

Highlights

  • Rice is the major food crop and staple food of Bangladesh

  • Prilled urea was top dressed in three equal splits at 15, 30 and 45 days after transplanting (DAT)

  • In case of varietal effect plant height, total tillers hill-1, effective tillers hill-1, length of panicle, grains panicle-1, unfilled spikelets panicle-1, grain yield, straw yield and harvest index were significantly influenced at different levels of significance

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Summary

Introduction

Rice is the major food crop and staple food of Bangladesh. But the average yield of rice is poor in Bangladesh, only 2.6 t/ha (BBS, 2008). The present study was, carried out to observe the integrated nutrient management by using USG, PU and PM on the yield of transplant Aman rice. For fertilizer effect all the parameters were significant except non-effective tillers hill-1, length of panicle, 1000-grain weight and biological yield.

Results
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