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Effect of Source and Placement Timings of Nitrogen Fertilizers on Growth and Yield of Raya (Brassica juncea L.)

Effect of Source and Placement Timings of Nitrogen Fertilizers on Growth and Yield of Raya (Brassica juncea L.)

Malik Muhammad Yousaf1*, Muhammad Zeshan1,2, Mumtaz Hussain1, Muhammad Mohsin Raza1, Muhammad Jahangir Shah1, Bashir Ahmed1 and Sabir Hussain Shah3 

1Arid Zone Research Institute, Pakistan Agricultural Research Council (PARC), Bahawalpur, Pakistan; 2National Institute for Genomics and Advanced Biotechnology (NIGAB), National Agricultural Research Centre, Islamabad, Pakistan; 3Department of Agricultural Sciences, Allama Iqbal Open University, Islamabad, Pakistan.

malikparc@gmail.com 

ABSTRACT

A field experiment was conducted to examine the efficacy of the source of N and its placement timings on growth and yield of raya. The experiment was laid out in the factorial arrangement within randomized complete block design (RCBD). Two sources of nitrogen i.e. urea and calcium ammonium nitrate (CAN) and three nitrogen placement timings i.e. ½ at rauni + ½ at flowering (T1), ½ at sowing + ½ at flowering (T2) and ½ at 1st irrigation + ½ at flowering (T3) were included in the experiment. Treatments were replicated thrice. Data were collected for growth parameters and yield contributing traits. It was observed that source of nitrogen has no significant difference on growth or yield while the N placement timing significantly affects these traits. Results showed that most efficient N placement timing is split dose of fertilizer at T3 (½ at 1st irrigation and ½ at flowering) for either urea or CAN fertilizer. 

 

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Pakistan Journal of Agricultural Research

September

Vol. 31, Iss. 3, Pages 202-290

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