Effects of Nitrogen and Phosphorus Fertilizers on Dekoko (Pisum sativum var.abyssinicum A. Braun) Yield and Yield related traits

Agricultural Science Pub Date : 2020-08-11 DOI:10.30560/as.v2n2p141

Kiros Wolday, A. Alemie, Y. Tsehaye

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Abstract

A field experiment was conducted to investigate the influence of different nitrogen and phosphorus fertilizer levels on dekoko (Pisum sativum var.abyssinicum A.Braun) yield and yield components as well as to establish the net benefit at each fertilizer levels. The Experiment was conducted at Mekelle university Endayesus campus in Tigray, Northern Ethiopia in 2013/14. It was laid out in a randomized complete block design with four blocks. It comprises four nitrogen (N) and phosphorus (P) fertilizer treatments combinations. Viz., Control (N0P0), 30 kg N ha-1 and 30 kg P2O5 ha-1 (N1P1), 60 kg N ha-1 and 60 kg P2O5 ha-1(N2P2) and 90 kg N ha-1 and 90 kg P2O5 ha-1 (N3P3).The highest yield (2114.55 kg ha-1), biomass (5312.5 kg ha-1), nitrogen and phosphorus use efficiency (4.58 kg kg-1) and maximum marginal rate of return (499%) were obtained when treated with N2P2. From the present results it could be concluded that 60 kg N ha-1 and 60 kg P2O5 ha-1 fertilizer rate would be optimum treatment combination for enhancing dekoko yield and yield components, NP use efficiency, and economic profitability. Therefore, application of 60 kg N ha-1 and 60 kg P2O5 ha-1 is recommended for better productivity and profitability of dekoko at low soil fertility levels.

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氮磷肥对德可可产量及相关性状的影响

通过田间试验，研究了不同氮、磷水平对豌豆产量和产量构成的影响，并确定了不同氮磷水平下的净效益。该实验于2013/14年在埃塞俄比亚北部提格雷的Mekelle大学Endayesus校区进行。它是在一个随机的完全区块设计中布局的，有四个区块。它包括四种氮（N）和磷（P）肥料处理组合。对照组（N0P0）、30 kg N ha-1和30 kg P2O5 ha-1（N1P1）、60 kg N ha-2和60 kg P2O5ha-1（N2P2）、90 kg N ha-3和90 kg P2O5-ha-1（N3P3）。N2P2处理的产量最高（2114.55 kg ha-1），生物量最高（5312.5 kg ha-1），氮磷利用效率最高（4.58 kg kg-1），边际收益率最高（499%）。从目前的结果可以看出，施用60kg N ha-1和60kg P2O5 ha-1的肥料是提高dekoko产量和产量组成、NP利用效率和经济效益的最佳处理组合。因此，建议在低土壤肥力水平下施用60 kg N ha-1和60 kg P2O5 ha-1，以提高dekoko的生产力和盈利能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Agricultural Science

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