Phosphorus use efficiency of different varieties of Lentil and grass pea

Ahmed Khairul Hasan,Istiaq Ahmed,Md Ashiquzzaman,Quazi Forhad Quadir

doi:10.3329/ralf.v2i2.25010

Ahmed Khairul Hasan, Istiaq Ahmed + Show 2 more

Open Access

https://doi.org/10.3329/ralf.v2i2.25010

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Abstract

A pot experiment was conducted in the net house of the Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh during the period from October, 2012 to April, 2013 to compare the phosphorus use efficiency (PUE) as well as the effect of phosphorus (P) on yield and quality of six varieties of lentil and grass pea (three from each crop). The experiment was laid out in a Completely Randomized Design (CRD) with two treatments and three replications. Treatments included optimum phosphorus (P) dose i.e. @ 25 kg P ha-1 (P1) and control (P0). Among the observed parameters, application of P fertilizer had performed better over control (P0) in all varieties of lentil and grass pea. Among the three varieties of lentil (viz. BARI masur-5, BARI masur-6 and BARI masur-7), the best yield performance was observed in BARI masur-5. Similarly, among the three varieties of grass pea, (viz. BINA khesari-1, BARI khesari-1 and BARI khesari-2), BINA khesari-1 showed the best yield performance. In lentil varieties, BARI Masur-5 produced the highest seed yield (2.78 g pot-1), whereas, BINA kheshari-1 gave the highest yield (3.38 g pot-1) among grass pea varieties. In case of lentil and grass pea varieties, highest seed P contents were observed in BARI masur-5 (1.36%) and BINA khesari-1 (1.22%) varieties, respectively. Maximum PUE (192.5%) for lentil varieties was found in BARI masur-5 and that of (234.0%) for grass pea varieties was in BINA khesari-1. On the other hand, P used per unit seed yield in lentil and grass pea was highest in BARI masur-5 and BINA khesari-1, respectively. Therefore, our farmer can be benefitted by cultivating BARI masur-5 and BINA khesari-1 through maximized yield using less amount of P fertilizers.Res. Agric., Livest. Fish.2(2): 271-277, August 2015

Highlights

Lentil is one of the most important legume crops grown in Bangladesh
Maximum phosphorus use efficiency (PUE) (192.5%) for lentil varieties was found in BARI masur-5 and that of (234.0%) for grass pea varieties was in BINA khesari-1
The highest number of pods plant[1] and higher number seeds plant-1 contributed to higher seed yield in BARI masur-5 under the present experimental situation and it was probably due to comparatively higher yield potential as well as having higher yield attributes over other varieties

Summary

INTRODUCTION

Lentil is one of the most important legume crops grown in Bangladesh. The lentil crop covers 32.70 percent of the total area of pulse in the country (BBS, 2011). Grass pea is a grain legume crop used for human and animal consumption since ancient times (Hanbury et al, 2000). It is a source of protein of many poor people in Bangladesh. The application of optimal rates of P and the use of genotypes with high PUE (grain yield per unit P added) is one of the strategies that farmers can adopt to improve legume crops in Bangladesh. Providing farmers with genotypes adapted to specific conditions of P availability in the soil and having good PUE should improve yields, without excessively increasing production cost or damaging the environment.

MATERIALS AND METHODS

RESULTS AND DISCUSSION

CONCLUSION