PDF(Pubmed)
Abstract：
A significant legume crop in Ethiopia, chickpeas (Cicer arietinum L.) have several advantages, including high nutritional value and the capacity to improve soils deficient in nitrogen through biological nitrogen fixation using several endosymbiotic Mesorhizobium spp. strains. However, the host variety, the soil\'s capacity to hold nutrients, and the endosymbiont\'s innate physiological traits all affect how efficient the strains are. The primary obstacles to its cultivation in the research area are inadequate agronomic methods and low soil fertility [low nitrogen (N), low soil organic matter (OM), low accessible phosphorous (P), sulfur (S), and boron (B)], which results in ineffective nodulation. To evaluate the effects of NPSB fertilization and inoculation, a field experiment was carried out in Buchach Kebele\'s Cheha area during the primary cropping season of 2021/22. The trial included two chickpea kinds (Local and Arerti), two NPSB levels (zero and 121 kg NPSB ha-1), and four levels of Mesorhizobium strains (CP-M41, CP-EAL 029, CP-M20b, and un-inoculated control). A randomized complete block design (RCBD) was used to organize the treatments in a factorial form with three replications. In comparison to the single application and the control, the interaction impact of strains, NPSB fertilizer, and variety greatly increased nodulation parameters, growth parameters, yield, and yield components. The Arerti variety combined with the CP-M41 Mesorhizobium strain and NPSB fertilizer had the maximum grain production (3177.16 kg ha-1). It yielded 15.96%, 24.06%, and 37.93% more than the Arerti with CP-M41 strain, Arerti with NPSB, and the control treatments, respectively. The partial budget analysis of the study treatments showed that the Arerti variety with the combined application of 121 kg NPSB ha-1 and Mesorhizobium strain CP-M41 inoculation produced the highest net return (102,092.6 ETB ha-1) with an acceptable marginal rate of return (618%). It has been found that the CP-M41 strain and the Arerti variety, when combined with 121 kg NPSB ha-1 application, is a suitable treatment combination to achieve increased chickpea crop yield and profit in the studied area. However, the results need further validation in the farmer\'s field before recommending to farmers.
摘要：
埃塞俄比亚的重要豆类作物，鹰嘴豆(CicerarietinumL.)有几个优点，包括高营养价值和使用几种内共生的中生根瘤菌通过生物固氮来改善氮缺乏土壤的能力。菌株。然而,主机品种，土壤保持养分的能力，内共生体的先天生理特征都会影响菌株的效率。其在研究区种植的主要障碍是农艺方法不足和土壤肥力低[低氮（N），低土壤有机质(OM)，低可接近磷(P)，硫(S),和硼(B)]，这导致无效的结瘤。为了评估NPSB施肥和接种的效果，在2021/22年的主要种植季节，在BuchachKebele的Cheha地区进行了田间试验。试验包括两种鹰嘴豆（本地和Arerti），两个NPSB水平（零和121千克NPSBha-1），和四个水平的中根瘤菌菌株(CP-M41，CP-EAL029，CP-M20b，和未接种的对照)。使用随机完全区组设计（RCBD）以阶乘形式组织治疗，重复三次。与单个应用程序和控件相比，菌株的相互作用影响，NPSB肥料，和品种大大增加了结瘤参数，生长参数，产量，并产生组件。Arerti品种与CP-M41中根瘤菌菌株和NPSB肥料相结合，具有最大的谷物产量（3177.16kgha-1）。它的收益率为15.96%，24.06%,比CP-M41菌株的Arerti多37.93%，NPSB的Arerti,和对照治疗，分别。对研究处理的部分预算分析表明，Arerti品种联合施用121kgNPSBha-1和Msorhizobium菌株CP-M41接种产生最高的净收益（102,092.6ETBha-1），边际收益率可接受（618％）。已经发现CP-M41菌株和Arerti品种，当与121公斤NPSBha-1应用结合使用时，是在研究区域实现鹰嘴豆作物产量增加和利润的合适处理组合。然而,在推荐给农民之前，结果需要在农民的领域进一步验证。
