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An overview of foliar application of macro and micronutrients on the yield of maize in Ghana 叶面喷施宏量和微量营养元素对加纳玉米产量的影响综述
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.0804026
Georgina Asare, Poonam Bhatt, Vincent Kodjo Avornyo, Raphael Adu Gyamfi
Maize is a major staple crop in Ghana which plays a significant role in consumer diets. For some time now, the farming methods used by the farmers have been negatively affected by components such as climate, soil nutrient depletion, and constant monocropping resulting in the adoption of inorganic fertilizers. Conventional fertilizers supplied through soils are subjected to slow release of nutrients, leaching, fixation, surface runoff, erosion, and volatilization, which hinders optimal plant growth and yield. Foliar application of fertilizer offers an alternative method of fertilizer application that supplies nutrients directly to the stomata and cuticle of the leaves of maize thereby enabling rapid absorption and enhancing crop vigor. The The main objective of this paper is to review research papers which explores the potential of foliar application of vital nutrients – phosphorus (P), sulphur (S), zinc (Zn), and iron (Fe) – to improve the yield of maize crop. According to the literature gathered, foliar fertilization in combination with soil applied fertilizers emerges as a promising strategy, particularly in addressing nutrient deficiencies and stress scenarios. The efficient uptake of nutrients through leaves, as opposed to traditional soil-based approaches, holds promise for augmenting yield and enhancing protein content in maize crops. Notably, prior research highlights the efficacy of foliar-applied P, S, Zn, and Fe in significantly boosting grain yield. By understanding the complex mechanisms of nutrient absorption and the advantages of foliar application, the agricultural sector can explore innovative avenues to surmount soil-related challenges and achieve sustainable crop development.
玉米是加纳的主要粮食作物,在消费者的饮食中占有重要地位。一段时间以来,农民使用的耕作方法受到气候、土壤养分枯竭和持续单一种植等因素的负面影响,导致他们不得不使用无机肥料。通过土壤提供的传统肥料会造成养分释放缓慢、沥滤、固定、地表径流、侵蚀和挥发,从而阻碍植物的最佳生长和产量。叶面施肥提供了另一种施肥方法,可将养分直接供给玉米叶片的气孔和角质层,从而实现快速吸收,增强作物活力。本文的主要目的是综述有关研究论文,探讨叶面喷施磷(P)、硫(S)、锌(Zn)和铁(Fe)等重要养分提高玉米产量的潜力。根据收集到的文献,叶面施肥与土壤施肥相结合是一种很有前景的策略,尤其是在解决养分缺乏和压力情况下。与传统的土壤施肥方法相比,叶片能有效吸收养分,这为提高玉米产量和蛋白质含量带来了希望。值得注意的是,先前的研究强调了叶面喷施 P、S、Zn 和 Fe 在显著提高谷物产量方面的功效。通过了解养分吸收的复杂机制和叶面喷施的优势,农业部门可以探索创新途径,克服与土壤有关的挑战,实现作物的可持续发展。
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引用次数: 0
Morpho-physiological response of maize (Zea mays L.) genotypes under aluminium stress at early seedling stage 玉米(Zea mays L.)基因型在幼苗期铝胁迫下的形态生理反应
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.0804023
Md. Asaduzzaman, Md. Shabab Zahedi, Md. Liton Mia, Ibrahim Hossain Shakil, Md. Shafiqul Islam, A. Hossain, Muhammad Humayun Kabir
This study investigated the morpho-physiological responses of five maize (Zea mays L.) genotypes to aluminum stress during the early seedling stage. The experiment, conducted at the Plant Physiology Laboratory in the Department of Crop Botany at Bangladesh Agricultural University, Mymensingh, followed a two-factor completely randomized design with aluminum concentrations (0 μM as control, 100 μM, and 200 μM) and five maize varieties (Konok, Kaveri-50, BWMRI-1, BHM-14, and BHM-16). Variety Konok exhibited superior overall performance across experimental parameters, while aluminum stress at 200 μM consistently decreased seed germination and seedling growth compared to the control at all recording stages. Variety Konok without aluminum stress demonstrated the highest values for root length (28.23 cm), shoot fresh weight (4.35 g), shoot dry weight (0.53 g), root fresh weight (8.18 g), root dry weight (1.21 g), total fresh weight (12.56 g), total dry weight (1.74 g), vigor index (5106.7). Conversely, under aluminum stress (200 μM AlCl3), the lowest values were observed in root length (14.70 cm), shoot length (15.38 cm), seedling length (31.50 cm), shoot fresh weight (1.79 g), shoot dry weight (0.20 g), root fresh weight (1.96 g), root dry weight (0.47 g), total fresh weight (3.84 g), total dry weight (0.67 g), vigor index (2592.7), and various stress tolerance indices. In summary, the study suggests that the maize variety "Konok" exhibits greater enhancement during the early seedling stage when grown without exposure to aluminum stress, emphasizing its potential for improved performance under normal conditions.
本研究调查了五种玉米(Zea mays L.)基因型在幼苗期对铝胁迫的形态生理反应。实验在位于迈门辛的孟加拉国农业大学作物植物学系的植物生理学实验室进行,采用双因素完全随机设计,铝浓度为 0 μM 作为对照、100 μM 和 200 μM,玉米品种为五个(Konok、Kaveri-50、BWMRI-1、BHM-14 和 BHM-16)。与对照组相比,在所有记录阶段,200 μM 的铝胁迫都会持续降低种子发芽率和幼苗生长率。没有受到铝胁迫的品种 Konok 在根长(28.23 厘米)、芽鲜重(4.35 克)、芽干重(0.53 克)、根鲜重(8.18 克)、根干重(1.21 克)、总鲜重(12.56 克)、总干重(1.74 克)和活力指数(5106.7)方面均表现出最高值。相反,在铝胁迫(200 μM AlCl3)下,根长(14.70 厘米)、芽长(15.38 厘米)、苗长(31.50 厘米)、芽鲜重(1.79 克)、芽干重(0.20 克)、根鲜重(1.96 克)、根干重(0.47 克)、总鲜重(3.84 克)、总干重(0.67 克)、活力指数(2592.7)和各种胁迫耐受指数的数值最低。总之,这项研究表明,玉米品种 "Konok "在没有受到铝胁迫的情况下生长,在幼苗期表现出更大的增产潜力,强调了其在正常条件下改善表现的潜力。
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引用次数: 0
Prevalence of antibodies against classical swine fever in two districts of Nepal 尼泊尔两个县古典猪瘟抗体的流行情况
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.0804014
Sonu Adhikari, Monica Gautam, Riddhi Shrestha, E. Ranjit, Kanchan Parajuli, Samjhana Kumari Kafle Pandey
This study aimed to investigate the seroprevalence of Classical Swine Fever (CSF), caused by the Classical Swine Fever Virus (CSFV), in the Bhaktapur and Kavrepalanchok districts of Nepal. The primary objective was to determine the prevalence of antibodies against CSFV in the swine population, providing crucial insights for targeted interventions and control strategies. A cross-sectional study was conducted between January and March 2018. The research involved structured questionnaire surveys and blood sample collection from selected farms in the study area. A total of 184 serum samples were collected and subjected to testing using the IDEXX ELISA test kit. The study evaluated seroprevalence by considering variables such as district, sex, age groups, and housing systems. Out of the 184 serum samples collected, 34 were found to be seropositive for CSFV antibodies, resulting in an overall seroprevalence of 18.40%. The study identified significant variations in seroprevalence between different factors, including districts, sexes, age groups, and housing systems. These findings indicate a notable exposure of swine populations in the Bhaktapur and Kavrepalanchok districts to CSFV. This research highlights the considerable risk posed by CSF to the pig populations in the Bhaktapur and Kavrepalanchok districts of Nepal. The identified seroprevalence and variations among different factors emphasize the importance of targeted interventions and control strategies in these regions. The findings serve as a foundation for informed decision-making to mitigate the impact of CSF, safeguard swine health, and protect the livelihoods of those dependent on the swine industry. This study was made possible with the support of the Zoonosis Control Project under the National Animal Science Research Institute, Nepal Agriculture Research Council.
本研究旨在调查尼泊尔巴克塔普尔县和卡夫雷帕兰乔克县由猪瘟病毒(CSFV)引起的猪瘟(CSF)的血清流行率。研究的主要目的是确定猪群中 CSFV 抗体的流行率,为有针对性的干预措施和控制策略提供重要依据。这项横断面研究于 2018 年 1 月至 3 月间进行。研究涉及结构化问卷调查和从研究地区选定的农场采集血样。共收集了 184 份血清样本,并使用 IDEXX ELISA 检测试剂盒进行了检测。研究通过考虑地区、性别、年龄组和住房系统等变量来评估血清流行率。在收集的 184 份血清样本中,有 34 份样本的 CSFV 抗体呈血清阳性,总体血清流行率为 18.40%。研究发现,不同因素(包括地区、性别、年龄组和住房系统)之间的血清流行率差异很大。这些发现表明巴克塔普尔和卡夫雷帕兰乔克地区的猪群明显暴露于 CSFV。这项研究凸显了 CSF 对尼泊尔巴克塔普尔和卡夫雷帕兰乔克地区的猪群构成的巨大风险。已确定的血清流行率和不同因素之间的差异强调了在这些地区采取有针对性的干预和控制策略的重要性。研究结果为做出明智决策奠定了基础,以减轻 CSF 的影响,保障猪群健康,保护依赖养猪业的人们的生计。本研究得到了尼泊尔农业研究委员会国家动物科学研究所人畜共患病控制项目的支持。
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引用次数: 0
Contribution of insect flower visitors on macadamia nut set, retention and yield in central Kenya 昆虫访花者对肯尼亚中部夏威夷果的结实率、保留率和产量的影响
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.080406
Nicholas I. Njue, J. Muthomi, G. Chemining’wa, James J. Odanga
The aim of this study was to evaluate the contribution of insects that visit macadamia flowers to nut set, retention, nut-in-shell, and kernel yields. The study was conducted at the Macadamia Research Centre in Kandara, Murang'a County, in three flowering cycles (cropping), from August 2020 to May 2022. Nut set, retention, and yield were assessed by randomly selecting twelve trees that were in full bloom at the study orchard in each of the flowering cycles. On each of the twelve trees, four branches of the same size were selected and tagged for the study. The branches were about 1 to 1.5 metres high from the ground. On each branch, one raceme at the bud stage was randomly selected and one of the four treatments administered. The treatments were (i) bagged during the day with mesh nets, (ii) bagged at night, (iii) bagged throughout the flowering season, excluding all insects, and (iv) racemes were left unbagged, thus having unlimited flower visitation by insects. There were significant differences on nut-in-shell yield (mass) (P≤0.05) in flowers that were unbagged (68.23 ± 4.03), bagged at night (61.50 ± 3.51), bagged during the day (6.53 ± 1.05) and those that were bagged throughout (4.45 ± 0.95). Racemes that had flower visitors fully excluded resulted in low nut-in-shell production. The initial nut set, retention, and ultimately the nut-in-shell yields were significantly increased in flowers that were left unbagged, thus insects had unlimited access. Macadamia nut set, retention, and ultimate yield (nuts-in-shell and kernel) is largely dependent on the presence of insect flower visitors.
本研究的目的是评估昆虫对澳洲坚果花的结实率、保留率、壳内坚果和果仁产量的影响。研究在穆朗阿县坎达拉的澳洲坚果研究中心进行,从2020年8月到2022年5月,共进行了三个开花周期(种植)。在每个开花周期中,研究人员在果园中随机选取了 12 棵盛花期的果树,对坚果的坐果率、保留率和产量进行了评估。在这 12 棵树上,每棵树都选取了 4 个大小相同的枝条并进行标记,以便进行研究。树枝距地面约 1 至 1.5 米高。在每个枝条上随机选择一个处于花蕾期的总状花序,并对其进行四种处理之一。处理方法分别是:(i) 白天用网兜套袋;(ii) 夜间套袋;(iii) 整个花期套袋,排除所有昆虫;(iv) 总状花序不套袋,昆虫无限制地探花。未套袋花朵(68.23 ± 4.03)、夜间套袋花朵(61.50 ± 3.51)、白天套袋花朵(6.53 ± 1.05)和全程套袋花朵(4.45 ± 0.95)的壳中坚果产量(质量)有明显差异(P≤0.05)。完全排除访花者的总状花序壳内坚果产量低。未套袋的花朵的最初坚果坐果率、留着率以及最终的壳内坚果产量都显著增加,因此昆虫可以无限制地进入。澳洲坚果的座果、保留率和最终产量(壳内坚果和果仁)在很大程度上取决于昆虫访花者的存在。
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引用次数: 0
Hydrochemical characterization of groundwater for consumption and agriculture: A case study from Phulpur Upazila, Bangladesh 消费和农业地下水的水化学特征:孟加拉国普尔布尔乡的案例研究
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.0804025
Deen Islam, Rafia Shaheen, M. Shariot-Ullah, Md. Touhidul Islam, N. Das, Nusrat Jahan
The aim of this study was to assess the suitability of groundwater for drinking and irrigation in Phulpur Upazila, Bangladesh, based on its hydrochemical attributes. In our research, we examined twenty groundwater specimens from shallow and hand tube wells, adhering to international and national guidelines. The data showed groundwater pH levels from 5.67 to 6.84, signifying slightly acidic to neutral properties. Total dissolved solids ranged from 79 to 298 mg/l, and conductivity varied between 120 and 832 μS/cm. Notably, the primary cations and anions were sequenced as Ca > Mg > Na > K and HCO3 > Cl > SO4 > PO4, respectively. A marked correlation was discerned among the physicochemical parameters, and the predominant groundwater type was magnesium-bicarbonate (Mg-HCO3). The main geochemical activity was identified as silicate weathering, pointing to significant rock-water interactions in the region. The groundwater displayed moderate salinity and low alkalinity, qualifying them as 'excellent to good' and 'normal' in quality metrics, respectively. The soluble sodium percentage was rated as 'excellent'. On multiple assessment scales, the groundwater quality was deemed 'good' for irrigation. In line with established classification systems, most samples were suitable for drinking and irrigation. Hence, the area's groundwater is viable for consumption and agricultural utilization. Cumulatively, our research offers critical insights for sustainable groundwater stewardship in the region, providing a foundation for policymakers to guarantee the sustained provision of high-quality groundwater for diverse applications.
本研究的目的是根据水化学属性,评估孟加拉国普尔布尔乡的地下水是否适合饮用和灌溉。在研究过程中,我们按照国际和国家指导方针,检测了 20 个浅井和手管井的地下水样本。数据显示,地下水的 pH 值在 5.67 至 6.84 之间,呈微酸性至中性。总溶解固体介于 79 至 298 毫克/升之间,电导率介于 120 至 832 μS/cm 之间。值得注意的是,主要阳离子和阴离子的排序分别为 Ca > Mg > Na > K 和 HCO3 > Cl > SO4 > PO4。理化参数之间存在明显的相关性,主要的地下水类型为碳酸氢镁(Mg-HCO3)。主要的地球化学活动被确定为硅酸盐风化,这表明该地区的岩石与水之间存在显著的相互作用。地下水的盐度适中,碱度较低,在质量指标中分别被评为 "优至良 "和 "正常"。可溶性钠的百分比被评为 "优"。从多个评估尺度来看,地下水质量被认为 "良好",适合灌溉。根据既定的分类系统,大多数样本都适合饮用和灌溉。因此,该地区的地下水可供饮用和农业利用。总之,我们的研究为该地区地下水的可持续管理提供了重要见解,为政策制定者提供了一个基础,以确保持续提供高质量的地下水,用于各种用途。
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引用次数: 0
Socio-economic appraisal of fish sanctuary on livelihood of fishermen in Chikadubi beel of Dingapota Haor, Netrokona, Bangladesh 鱼类保护区对孟加拉国内特罗科纳 Dingapota Haor 的 Chikadubi beel 渔民生计的社会经济评估
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.0804010
Md. Shahin Alam, Md. Hashibur Rahman, Nafis Tasneem Binti, Shayla Sultana Mely, S. Ahamed, Md. Moshiur Rahman
The investigation was conducted on the livelihood status of fishers of Chikadubi beel in Dingaputa haor, Netrokona district of Bangladesh for a period of 6 months from August 2020 to December 2020. A total 50 fishers were randomly selected and data were collected from them through direct interview. Focus group discussions were carried out by a previously made checklist. The results showed that the annual income of fishermen varied from BDT 30000 (270.79 USD) to BDT 70000 (631.85 USD). Maximum (58%) fishers were low-income levels from BDT 30000 (270.79 USD) to BDT 40000 (361.05 USD) and trying to shift their professions to other subsidiary professions. Among them 66% of the respondents indicated that this sanctuary is very effective in improving socio-economic status of the fishers. Relatively middle age group (31 to 40 years) dominated in all study areas. Muslim fishermen are the most dominant in the study area. 68% of the fishers live with nuclear families. The highest percentage (62%) fishers can sign only due to economic crisis and lack of awareness about education, (24%) having Primary level education, (14%) have no education as the children dropped out from school before completing their primary education. Housing and sanitation conditions of the fishermen were not well developed. Based on various livelihood parameters, fishermen are leading very poor state of lives. Sanctuary establishment and Community based aquatic resource management strategies may be undertaken with a view to enhance fish production to improve the livelihood condition of the fishers dwelling in the Chikadubi beel area of Dingaputa haor in Bangladesh.
这项调查针对孟加拉国内特罗科纳区 Dingaputa haor 的 Chikadubi beel 渔民的生计状况进行,为期 6 个月,从 2020 年 8 月至 2020 年 12 月。随机抽取了 50 名渔民,通过直接访谈收集数据。焦点小组讨论是通过事先制定的清单进行的。结果显示,渔民的年收入从 30000 孟加拉塔卡(270.79 美元)到 70000 孟加拉塔卡(631.85 美元)不等。最多(58%)的渔民属于低收入水平,从 30000 孟加拉塔卡(270.79 美元)到 40000 孟加拉塔卡(361.05 美元)不等,并试图转行从事其他辅助职业。其中 66% 的受访者表示,该保护区对改善渔民的社会经济状况非常有效。在所有研究地区,中年群体(31 至 40 岁)占主导地位。穆斯林渔民在研究地区占多数。68% 的渔民生活在核心家庭中。最高比例(62%)的渔民由于经济危机和缺乏教育意识而只能签约,(24%)受过小学教育,(14%)没有受过教育,因为他们的孩子在完成小学教育之前就辍学了。渔民的住房和卫生条件不佳。从各种生活参数来看,渔民的生活状况非常糟糕。可以采取建立保护区和基于社区的水生资源管理战略,以提高鱼类产量,改善孟加拉国丁加普塔湖 Chikadubi beel 地区渔民的生计状况。
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引用次数: 0
AMMI GGE biplot analysis of wheat genotypes under heat stress and heat drought environment 热胁迫和热干旱环境下小麦基因型的 AMMI GGE 双图分析
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.080404
Eishaina Chaudhary, Surakshya Sharma, Pratik Gautam, Sweksha Ghimire, Sushma Sapkota, Kriti Bhattarai, Puja Roka, Rashmi Poudel, Bibisha Timalsina, K. Neupane, Ganesh G.C, Manoj Pariyar, Anil Aryal, M. Poudel, Radhakrishna Bhandari
Wheat is the third most important cereal crop of Nepal. Climatic changes have been a major threat on overall production and productivity of wheat in Nepal. With the aim of evaluating twenty elite wheat genotypes under heat stress and heat drought environments, a field experiment was conducted using alpha lattice design at Bhairahawa, Rupandehi, Nepal. The analysis of variance (ANOVA) revealed significant differences in the yield across wheat growing environments (p<0.001). Environment explained 75.11% of the total variation in grain yield. NL 1404 was the most stable followed by NL 1368, and NL 1413. NL 1376, NL 1369. NL 1386 was the best adapted genotypes under heat stress environments whereas NL 1384, Gautam, and BL 4949 were best adapted to heat drought environments. NL 1346 was the best genotype. WWW model explained NL 1346 won under heat drought environment and NL 1384 under heat stress environment. Mean vs. stability model showed NL 1346 was the above yielder and stable genotype. In ranking, NL1179 was concluded to be the ideal genotype. From the study, NL 1368 was found to be the winning genotype under heat drought and heat stress environments. These genotypes should further be evaluated to release as a variety.
小麦是尼泊尔第三大重要谷物作物。气候的变化对尼泊尔小麦的总体产量和生产率构成了重大威胁。为了评估热胁迫和热干旱环境下的 20 种精英小麦基因型,我们在尼泊尔鲁班德希的 Bhairahawa 采用阿尔法网格设计进行了田间试验。方差分析(ANOVA)显示,不同小麦生长环境下的产量差异显著(P<0.001)。环境解释了粮食产量总变异的 75.11%。NL 1404 最稳定,其次是 NL 1368 和 NL 1413。NL 1376、NL 1369。NL 1386 最适应热胁迫环境,而 NL 1384、Gautam 和 BL 4949 最适应热干旱环境。NL 1346 是最佳基因型。WWW 模型解释了 NL 1346 在热干旱环境下胜出,而 NL 1384 在热胁迫环境下胜出。平均值与稳定性模型表明,NL 1346 是产量最高且最稳定的基因型。排序结果表明,NL1179 是最理想的基因型。研究发现,NL 1368 是热干旱和热胁迫环境下的优胜基因型。应进一步评估这些基因型,以便将其作为品种推出。
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引用次数: 0
Socioeconomic status of the people and their attitude toward conservation in Parsa National Park, Nepal 尼泊尔帕尔萨国家公园居民的社会经济地位及其保护态度
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.080408
Kanchan Parajuli, Sonu Adhikari, Sujaya Subedi
This study aims to investigate the socioeconomic status of communities living in proximity to a park and their attitudes towards conservation. The questionnaires used in this study were carefully designed to achieve the desired research objectives. The majority of people living adjacent to the park depend on agriculture and livestock farming for their livelihood. People also benefit from the forest's resources in many aspects. People’s perceptions of wildlife conservation vary widely and are influenced by various factors such as economic status, cultural background, education status, awareness level, and personal experiences. Respondents with higher education status have been found to exhibit positive attitudes towards conservation. Results have shown that 70% of respondents who live near the park claim that coexistence with wildlife is becoming increasingly problematic. While the respondents are pleased with the practical conservation strategies that have contributed to the rise in wildlife populations, they are concerned about the increasing conflicts with wildlife. Crop raiding is a serious problem in several villages located near dense forests. Livestock depredation is another major issue that has been observed in the same area. Wildlife has been known to attack and kill livestock, causing a significant loss of income for the farmers in these villages. Many people feel that the lack of effective compensation mechanisms has led to a sense of antagonism towards both authorities and conservation efforts as a whole. The importance of effective compensation mechanisms in conservation efforts cannot be overstated. Some of the respondents have noted that the development of ecotourism has the potential to mitigate human-wildlife conflict. Ecotourism provides jobs, income, and other economic opportunities that help improve their socioeconomic status and, in turn, promote conservation.
本研究旨在调查生活在公园附近的社区的社会经济状况及其对保护的态度。为实现预期研究目标,本研究精心设计了调查问卷。居住在公园附近的大多数人以农业和畜牧业为生。人们也从森林资源的许多方面受益。人们对野生动物保护的看法差异很大,并受到经济状况、文化背景、教育状况、认识水平和个人经历等各种因素的影响。研究发现,受教育程度较高的受访者对保护野生动物表现出积极的态度。调查结果显示,70% 居住在公园附近的受访者认为,与野生动物共存的问题越来越严重。虽然受访者对有助于野生动物数量增加的实用保护战略感到高兴,但他们对与野生动物日益增加的冲突感到担忧。在密林附近的几个村庄,农作物被盗是一个严重的问题。牲畜被掠夺是同一地区发现的另一个主要问题。据了解,野生动物会攻击和杀害牲畜,给这些村庄的农民造成巨大的收入损失。许多人认为,由于缺乏有效的补偿机制,人们对当局和整个保护工作都产生了敌意。有效的补偿机制在保护工作中的重要性怎么强调都不为过。一些受访者指出,发展生态旅游有可能缓解人类与野生动物之间的冲突。生态旅游提供了工作、收入和其他经济机会,有助于提高他们的社会经济地位,进而促进保护工作。
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引用次数: 0
Evaluation of local substrates as rice straw alternatives for oyster mushroom (Pleurotus ostreatus) cultivation in resource-constrained Darchula, Nepal 在尼泊尔资源有限的达丘拉,评估当地基质作为稻草替代品用于杏鲍菇(Pleurotus ostreatus)栽培的情况
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.0804012
K. Pandey, Yagyaraj Joshi, Sharwari Bhattarai, Dharmendra Joshi, Sobita Subedi, Prakash Kumar Pant, Sushil Khatri
Oyster mushroom cultivation, though cost-effective, faces constraints due to seasonality and substrate availability. An experimental study was conducted in the resource-constrained Darchula district of Nepal from February to May 2022. The aim was to identify and recommend economically sustainable alternatives to rice straw for oyster mushroom production using local substrates in regions with limited resources. Six treatments; rice straw (T1), banana leaves and pseudostem (T2), maize cob (T3), sawdust (T4), grass (Eulaliopsis sp.) (T5), and spent mushroom substrates (T6); were employed in a completely randomized design with four replications. Statistical analysis of growth and yield parameters revealed significant results (P values ranging from P>0.001 to P>0.05) across all parameters. The maize cob treatment exhibited a shorter spawn run period (20.50 days) and the earliest pinhead formation (25 days). The highest total yield (3.14 kg) across three flushes was obtained from paddy straw, followed by T2 and T5, yielding 2.05 kg and 1.43 kg, respectively. Sawdust, despite its larger stalk (1.23 cm) and pileus diameter (7.72 cm), had the lowest production (0.63 kg). Maximum biological efficiency was recorded for T1 (139.63%), followed by T2, T5, and T3, respectively. Economically, T1 resulted in the highest gross margin per 10 kg of substrate (NRs.1845.22) and the highest B:C ratio (2.51), followed by T5 and T2. These findings highlight the promise of locally abundant substrates such as banana leaves, pseudo stems, Eulaliopsis, and maize cobs as economically viable alternatives to rice straw in regions with limited straw availability or unsuitable climates for rice cultivation.
杏鲍菇种植虽然具有成本效益,但面临季节性和基质可用性的限制。2022 年 2 月至 5 月,在尼泊尔资源有限的达丘拉县进行了一项实验研究。目的是在资源有限的地区,利用当地基质确定并推荐经济上可持续的杏鲍菇生产稻草替代品。在完全随机设计中采用了六种处理:稻草(T1)、香蕉叶和假茎(T2)、玉米芯(T3)、锯末(T4)、草(Eulaliopsis sp.)(T5)和废蘑菇基质(T6),四次重复。对生长和产量参数的统计分析显示,所有参数均有显著结果(P 值从 P>0.001 到 P>0.05 不等)。玉米芯处理的产卵期较短(20.50 天),针头形成最早(25 天)。水稻秸秆的总产量最高(3.14 千克),其次是 T2 和 T5,分别为 2.05 千克和 1.43 千克。锯末虽然茎秆(1.23 厘米)和茎秆直径(7.72 厘米)较大,但产量最低(0.63 千克)。T1 的生物效率最高(139.63%),其次分别是 T2、T5 和 T3。从经济效益来看,T1 每 10 公斤基质的毛利最高(1845.22 尼泊尔卢比),B:C 比率最高(2.51),其次是 T5 和 T2。这些研究结果突出表明,在稻草供应有限或气候不适合水稻种植的地区,香蕉叶、假茎、Eulaliopsis 和玉米棒等当地丰富的基质有望成为稻草的经济可行替代品。
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引用次数: 0
An analysis of area and production growth rate along with price forecasting of major pulses in Bangladesh 孟加拉国主要豆类的面积和产量增长率分析及价格预测
Pub Date : 2023-12-25 DOI: 10.26832/24566632.2023.080401
Md. Mahfuzul Hasan, Nazia Tabassum, Mohammod Kamruj Jaman Bhuiyan, Md Akhtarul Alam, Abu Hayat Md. Saiful Islam, Md. Asraf Mahmud Hasif
Pulses are the most significant crops in the world, as well as in Bangladesh, for their commer-cial and nutritional importance. The study was carried out to determine the rate of expansion in area and production for several types of pulses such as Mosur, Mung, Mashkalai, Gram, and Khesari in Bangladesh, as well as to anticipate wholesale prices for those pulses. Secondary data from the Bangladesh Bureau of Statistics (BBS) and the Department of Agricultural Marketing were used in this study. Following a diagnostic check, such as R2, Adjusted R2, RMSE, AIC, BIC, MAE, and MAPPE, it was discovered that the Cubic growth model was the best for specified pulses. The data over the entire time revealed that total output in the area rose in the case of all pulses. Mosur and Mung had positive average production growth rates of 2.02 and 6.919 percent, respectively. Mashkalai, Gram, and Khesari experienced negative growth rates of -0.541, -8.894, and -0.854 percent, respectively. After computing the average percentage change for Area growth rate Mosur, Mung, and Mashkalai showed positive growth rates of 1.229, 4.631, and 1.152 percent, respectively. In contrast, Gram and Khesari both had negative average values of -7.719 and -1.987 percent. This study applied the ARIMA (0,1,0) (1,0,1) model for Mosur, ARIMA (0,1,2) model for Mung, ARIMA (2,1,2) model for Mashkalai, ARIMA (2,1,4) model for Gram, and ARIMA (0,1,0) model for Khesari since those models passed the diagnostic test. Forecasting findings revealed that Mosur, Gram, and Khesari wholesale prices would be marginally modified, while Mung and Mashkalai wholesale prices would be raised in 2025. Thus, analyzing the growth rates of area and output of key pulses may help farmers allocate their land more wisely and price forecasts will help farmers in identifying the best crops for their production, which will improve the output of these crops in Bangladesh.
豆类是世界上最重要的作物,在孟加拉国也是如此,具有重要的商业和营养价值。本研究旨在确定孟加拉国 Mosur、Mung、Mashkalai、Gram 和 Khesari 等几种豆类的面积和产量扩张速度,并预测这些豆类的批发价格。本研究使用了孟加拉国统计局和农业市场部提供的二手数据。经过 R2、调整后 R2、RMSE、AIC、BIC、MAE 和 MAPPE 等诊断检查,发现立方增长模型最适合特定豆类。整个期间的数据显示,该地区所有豆类的总产量都有所上升。莫苏尔豆和绿豆的平均产量增长率分别为 2.02% 和 6.919%。Mashkalai、Gram 和 Khesari 的增长率分别为-0.541%、-8.894%和-0.854%。在计算地区增长率的平均百分比变化后,莫苏尔、蒙和马什卡莱的增长率分别为 1.229%、4.631% 和 1.152%。相比之下,Gram 和 Khesari 的平均值均为负值,分别为-7.719%和-1.987%。本研究对莫苏尔采用了 ARIMA (0,1,0) (1,0,1) 模型,对蒙采用了 ARIMA (0,1,2) 模型,对马什卡莱采用了 ARIMA (2,1,2)模型,对格拉姆采用了 ARIMA (2,1,4)模型,对克萨里采用了 ARIMA (0,1,0)模型,因为这些模型都通过了诊断测试。预测结果显示,2025 年莫苏尔、格拉姆和克沙里的批发价格将略有调整,而蒙和马什卡莱的批发价格将有所提高。因此,分析主要豆类的面积和产量增长率有助于农民更合理地分配土地,而价格预测则有助于农民确定最适合其生产的作物,从而提高孟加拉国这些作物的产量。
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Archives of Agriculture and Environmental Science
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