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Nutrient uptake, use efficiency and productivity of bread wheat (Triticum aestivum L.) as affected by nitrogen and potassium fertilizer in Keddida Gamela Woreda, Southern Ethiopia
Environmental Systems Research Pub Date : 2021-01-29 , DOI: 10.1186/s40068-020-00210-4
Temesgen Godebo , Fanuel Laekemariam , Gobeze Loha

Bread wheat (Triticum aestivum L.) is one of the most important cereal crops in Ethiopia. The productivity of wheat is markedly constrained by nutrient depletion and inadequate fertilizer application. The experiment was conducted to study the effect of nitrogen (N) and potassium (K) fertilizer rates on growth, yield, nutrient uptake and use efficiency during 2019 cropping season on Kedida Gamela Woreda, Kembata Tembaro Zone Southern Ethiopia. Factorial combinations of four rates of N (0, 23, 46 and 69 kg Nha−1) and three rates of K2O (0, 30 and 60 kg Nha−1) in the form of urea (46–0-0) and murate of potash (KCl) (0-0-60) respectively, were laid out in a randomized complete block design with three replications. The results showed that most parameters viz yield, yield components, N uptake and use efficiency revealed significant differences (P < 0.05) due to interaction effects of N and K. Fertilizer application at the rate of 46 N and 30 kg K ha−1 resulted in high grain yield of 4392 kg ha− 1 and the lowest 1041 from control. The highest agronomic efficiency of N (52.5) obtained from the application of 46 kg N ha−1. Maximum physiological efficiency of N (86.6 kg kg−1) and use efficiency of K (58.6%) was recorded from the interaction of 46 and 30 kg K ha−1. Hence, it could be concluded that applying 46 and 30 kg K ha−1was resulted in high grain yield and economic return to wheat growing farmers of the area. Yet, in order to draw sound conclusion, repeating the experiment in over seasons and locations is recommended.

中文翻译:

氮和钾肥对埃塞俄比亚南部Keddida Gamela Woreda面包小麦(Triticum aestivum L.)的养分吸收,利用效率和生产力的影响

面包小麦(Triticum aestivum L.)是埃塞俄比亚最重要的谷物作物之一。养分耗竭和肥料施用不足明显限制了小麦的生产力。进行了该实验,研究了埃塞俄比亚南部Kembata Tembaro区Kedida Gamela Woreda在2019种植季节期间氮(N)和钾(K)肥料用量对生长,产量,养分吸收和利用效率的影响。尿素(46-0-0)和尿素形式的四个N比率(0、23、46和69 kg Nha-1)和三个K2O(0、30和60 kg Nha-1)的因式组合将钾盐(KCl)(0-0-60)分别以三份重复的随机完整块设计进行布局。结果表明,大多数参数,即产量,产量组成,氮素吸收和利用效率显示出显着差异(P <0。05)由于氮和钾的交互作用。施肥量为46 N和30 kg K ha-1时,谷物产量高,达4392 kg ha-1,而对照中最低,为1041。通过施用46 kg N ha-1获得的最高农艺效率N(52.5)。从46和30 kg K ha-1的相互作用中记录到最大的生理效率N(86.6 kg kg-1)和K的利用效率(58.6%)。因此,可以得出结论,施用46和30 kg K ha-1可提高该地区小麦种植者的谷物单产和经济回报。但是,为了得出合理的结论,建议在多个季节和位置重复进行该实验。施肥量为46 N和30 kg K ha-1时,谷物产量高,达4392 kg ha-1,而对照的最低产量为1041。通过施用46 kg N ha-1获得的最高农艺效率N(52.5)。通过46和30 kg K ha-1的相互作用,记录了N的最大生理效率(86.6 kg kg-1)和K的使用效率(58.6%)。因此,可以得出结论,施用46和30 kg K ha-1可提高该地区小麦种植者的谷物单产和经济回报。但是,为了得出合理的结论,建议在多个季节和位置重复进行该实验。施肥量为46 N和30 kg K ha-1时,谷物产量高,达4392 kg ha-1,而对照中最低,为1041。通过施用46 kg N ha-1获得的最高农艺效率N(52.5)。通过46和30 kg K ha-1的相互作用,记录了N的最大生理效率(86.6 kg kg-1)和K的使用效率(58.6%)。因此,可以得出结论,施用46和30 kg K ha-1可提高该地区小麦种植者的谷物单产和经济回报。但是,为了得出合理的结论,建议在多个季节和位置重复进行该实验。从46和30 kg K ha-1的相互作用记录了6%)。因此,可以得出结论,施用46和30 kg K ha-1可提高该地区小麦种植者的谷物单产和经济回报。但是,为了得出合理的结论,建议在多个季节和位置重复进行该实验。从46和30 kg K ha-1的相互作用记录了6%)。因此,可以得出结论,施用46和30 kg K ha-1可提高该地区小麦种植者的谷物单产并带来经济回报。但是,为了得出合理的结论,建议在多个季节和位置重复进行该实验。
更新日期:2021-01-29
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