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      Effect of Plant Spacing and Np Fertilizer Levels on Growth, Seed Yield and Quality of Onion (Allium cepa L.) at Shewa Robit, Northern Ethiopia

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      The Open Biotechnology Journal
      Bentham Science Publishers Ltd.

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          Abstract

          Background:

          The shortage of quality seed is the major limiting factor of onion production in the study area. Inappropriate use of NP fertilizers and plant spacing is the major source of the problem.

          Objective:

          The experiment was conducted to determine optimum plant spacing and NP fertilizer for high yield and quality seed production of onion.

          Methods:

          The treatments were composed of plant spacing 10×20×40 cm, 20×30×50 cm, 10×40 cm, 10×50 cm, 10x30 cm and NP fertilizer levels 86.25 P 2O 5 & 85.5 N kg ha -1, 115 P 2O 5 & 114 N kg ha -1, 143.6 P 2O 5 & 142.5 N kg ha -1, 69 P 2O 5 & 142 N kg ha -1 and control in a 5 x 5 factorial arrangement of RCBD with three replications.

          Results:

          The highest seed yield per hectare (879.4 kg) and per plot (663.6 g) was obtained from 115 P 2O 5 & 114 N kg ha -1 fertilizers and plant spacing 10×30cm gives the highest seed yield per plot (561.7g) and per hectare (748.9 kg). The highest germination percentage was obtained by the interaction effect of 10×30 cm and 143.6 P 2O 5 & 142.5 N kg ha -1. Whereas, highest seed vigor index I and II were obtained from the interaction of 115 P 2O 5 &114 N kg ha -1 and 20×30×50 cm spacing.

          Conclusion:

          Plant spacing of 10×30 cm followed by 20×30×50 cm and 115 P 2O 5 &114 N kg ha -1 fertilizers could be recommended for high yield and quality onion seed production in the study area.

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          Multiple Range and Multiple F Tests

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            Vigor Determination in Soybean Seed by Multiple Criteria1

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              Onions and other vegetable alliums

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                Author and article information

                Journal
                The Open Biotechnology Journal
                TOBIOTJ
                Bentham Science Publishers Ltd.
                1874-0707
                February 13 2020
                February 13 2020
                : 14
                : 1
                : 12-22
                Article
                10.2174/1874070702014010012
                63880a3d-dd96-45d3-aed9-db63c3ff9896
                © 2020

                https://creativecommons.org/licenses/by/4.0/legalcode

                History

                Medicine,Chemistry,Life sciences
                Medicine, Chemistry, Life sciences

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