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Review of the Role of Orphan Crops in Food Security 孤生作物在粮食安全中的作用综述
Pub Date : 2022-04-28 DOI: 10.36956/rwae.v3i2.501
A. Feyisa
Ethiopia is one of the most populated countries in Africa. Agriculture employs over 70% of the population. It is dominated by small-scale farmers who practice rain-fed mixed farming by using traditional technology, adopting a low input and low output production system. As a result, it is vulnerable to adverse weather conditions. Cereal crops provide food for majority Ethiopians, so most agricultural transformation plans prioritize increasing cereal crop productivity. However, about five million people experience food insecurity each year and require support. Population growth, environmental degradation, conflict, and climate change are the most serious threats to nation’s food security. In a time when the food supply cannot keep up with population expansion, there is a need for holistic solutions to development-related issues such as food insecurity, malnutrition, and poverty. Despite Ethiopia being a center of origin and diversity for several food crops, the potential benefits of underutilized indigenous crops are yet not exploited. However, they can play a significant part in human nutrition, income, and medicinal value. As a result, crop diversification may be the best choice for achieving household food security. One way to help nation’s food systems diversify is to include more orphan crops. Even though a small portion of the country’s land is dedicated to underused crops, more than 20% of the population relies on them for food. Orphan crops, such as enset, which can feed 100 million people, can help to attain food security in Ethiopia. As a result, promoting and researching these crops is the most sustainable strategy for lowering and managing poverty and food insecurity in Ethiopia.
埃塞俄比亚是非洲人口最多的国家之一。农业雇佣了超过70%的人口。以小规模农户为主,采用传统技术,实行雨养混合耕作,采用低投入低产出的生产体系。因此,它很容易受到恶劣天气条件的影响。谷类作物为大多数埃塞俄比亚人提供食物,因此大多数农业转型计划优先考虑提高谷类作物的生产力。然而,每年约有500万人面临粮食不安全,需要援助。人口增长、环境恶化、冲突和气候变化是对国家粮食安全的最严重威胁。在粮食供应无法跟上人口增长的时候,有必要对粮食不安全、营养不良和贫困等与发展有关的问题采取整体解决办法。尽管埃塞俄比亚是几种粮食作物的原产地和多样性中心,但尚未充分利用的土著作物的潜在利益尚未得到开发。然而,它们可以在人类营养、收入和药用价值方面发挥重要作用。因此,作物多样化可能是实现家庭粮食安全的最佳选择。帮助国家粮食系统多样化的一个方法是包括更多的孤儿作物。尽管该国的一小部分土地专门用于种植未充分利用的作物,但超过20%的人口依靠它们获得食物。像enset这样可以养活1亿人的孤儿作物可以帮助埃塞俄比亚实现粮食安全。因此,推广和研究这些作物是埃塞俄比亚减少和管理贫困和粮食不安全的最可持续的战略。
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引用次数: 2
Border-rows Effect of Rape (Brassica napus L.) Intercropping with Milk Vetch (Astragalus sinicus L.) 油菜(Brassica napus L.)的边行效应黄芪间作(黄芪)
Pub Date : 2022-03-31 DOI: 10.36956/rwae.v3i1.484
Z. Liu, Quan Zhou, F. Ouyang, Yiqiang Liu, Gaojie Su, Xuehao Wang, Zhijie Hou, Tengqi Wang, Ya-Jun Wang, Guoqin Huang
Border-rows effect is an important research content of intercropping system. Milk vetch-rape intercropping is one of the typical intercropping patterns in southern China. However, research on the border-rows effect is very little, which has affected the application and popularization of the milk vetch-rape intercropping system. In this study, two field experiments were conducted from 2018 to 2020. The effects of monoculture, intercropping and different border-rows on agronomic traits and yield of rape were studied. The results showed that milk vetch had a significant effect on the first border-row of rape. The first border-row of rape diameter of root and secondary effective branch number is significantly higher than second and third border-row, and the rape yield per plant in the first border-row of intercropping milk vetch was 135%, 328%, 257% and 147% higher than that in the second, third, fourth and fifth border-rows respectively. The intercropping with milk vetch enhanced the number of pods per plant in first border-row by increasing the agronomic traits of rape, such as plant height, stem diameter, primary effective branch number and secondary effective branch number. In conclusion, intercropping milk vetch significantly improved the agronomic traits of the first and second border-rows rape, increased the yield of rape. So it is recommended that milk vetch intercropping with two rows rape, which has important guiding significance for the application and promotion of milk vetch-rape intercropping in the future.
边行效应是间作系统研究的一个重要内容。豇豆-油菜间作是中国南方典型的间作模式之一。然而,对畦埂效应的研究甚少,影响了油菜-豇豆间作系统的应用和推广。本研究于2018 - 2020年进行了两次野外试验。研究了单作、间作和不同行距对油菜农艺性状和产量的影响。结果表明,豇豆对油菜第一缘行有显著影响。间作豇豆第一边行油菜根径和次生有效枝数显著高于第二和第三边行,单株油菜单产分别比第二、第三、第四和第五边行高135%、328%、257%和147%。紫云英间作通过提高油菜株高、茎粗、一次有效枝数和次有效枝数等农艺性状,提高了第一边行单株荚果数。综上所述,间作豇豆显著改善了一、二边行油菜的农艺性状,提高了油菜产量。因此,建议豆荚与两行油菜套作,对今后豆荚与油菜套作的应用推广具有重要的指导意义。
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引用次数: 1
Unravelling the Drivers of Plantain Marketing in Enugu State, Nigeria 剖析尼日利亚埃努古州大蕉营销的驱动因素
Pub Date : 2022-03-31 DOI: 10.36956/rwae.v3i1.496
I. Ukwuaba, Z. Owutuamor, S. N. Chiemela, Chikaosolu Maryqueen Ileka, Ifeyinwa Cynthia Ukwuaba
Plantain marketing offers great profit-making, yet it is unclear if these have translated to more profits, making it imperative to examine the drivers of plantain marketing. Primary data collected with structured questionnaire in purposive 2-staged random sampling were analyzed using net marketing income, marketing margin, marketing efficiency and multiple linear regression models. Plantain marketing was mainly done by married educated women, averaged 40 years of age, belonging to households averaging 6 persons. Net monthly profit of $63.51 (₦26,050.38), average marketing margin of 30.84% and marketing efficiency of 35.06% were returned. Suggesting plantain marketing is profitable and viable but largely inefficient. Cost of plantain and marketing experience were positively significant (p≤0.05). Plantain marketing faced constraints like seasonality of plantain, inadequate finance, price fluctuations, high transportation costs, bulkiness, spoilage/breakage and high plantain costs. Plantain marketers should form/join cooperatives to obtain low-interest loans, mitigate marketing costs and enjoy economies of scale.
车前草营销提供了巨大的利润,但目前尚不清楚这些是否转化为更多的利润,因此有必要研究车前草营销的驱动因素。采用有目的的两阶段随机抽样,采用结构化问卷法收集原始数据,运用净营销收入、营销边际、营销效率和多元线性回归模型进行分析。芭蕉营销以已婚、受过教育的女性为主,平均年龄40岁,户均6人。每月净利润为63.51美元(奈拉为26,050.38),平均销售利润率为30.84%,销售效率为35.06%。这表明大蕉营销是有利可图且可行的,但在很大程度上效率低下。大蕉成本与营销经验呈正相关(p≤0.05)。大蕉营销面临着大蕉季节性、资金不足、价格波动、运输成本高、体积大、腐败/破损、大蕉成本高等制约因素。大蕉营销商应组成/加入合作社,以获得低息贷款,降低营销成本,享受规模经济。
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引用次数: 1
Implications of Farmer’s Adaptation Strategies to Climate Change in Agricultural Sector of Gujarat: Experience from Farm Level Data 古吉拉特邦农业部门农民适应气候变化策略的启示:来自农业层面数据的经验
Pub Date : 2022-03-31 DOI: 10.36956/rwae.v3i1.498
A. K. Singh, Sanjeev Kumar, Shahbaz Ashraf, Bhim Jyoti
This study examined the farmer’s perception on climate change and adaptation strategies to mitigate the adverse effect of climate change in the agricultural sector of Gujarat. It used farm level information of 400 farmers who were purposely selected from 8 districts. Thereupon, linear, non-linear and log-linear production function models were used to examine the impact of climate change, farmer’s adaptation strategies and technological change on agricultural production in Gujarat. The descriptive and empirical results specify that adaptation strategies (i.e., change in showing time of crops, mixed cropping pattern, irrigation facilities, application of green and organic fertilizer, hybrid varieties of seeds, dampening of seed before planting, climate tolerate crops, organic farming and technology) have a positive impact on agricultural production. Thus, farmer’s adaptation strategies are useful to mitigate the negative impact of climate change in the agricultural sector. Maximum temperature and minimum temperature, precipitation and rainfall have a negative impact on agricultural production. However, the impact of these factors seemed positive in the agricultural sector when farmers apply aforementioned adaptation strategies in cultivation. Family size, education level of farmers, annual income of farmers, arable land, irrigated area, cost of technology, appropriate technology and financial support from government have a positive contribution to increase agricultural production in Gujarat.
本研究考察了古吉拉特邦农民对气候变化的看法以及缓解气候变化对农业部门不利影响的适应策略。它使用了从8个地区特意挑选的400名农民的农场级别信息。在此基础上,采用线性、非线性和对数线性生产函数模型考察了气候变化、农民适应策略和技术变革对古吉拉特邦农业生产的影响。描述性和实证结果表明,适应策略(即改变作物的显示时间、混合种植模式、灌溉设施、施用绿色和有机肥料、种子杂交品种、种植前种子潮湿、气候耐受性作物、有机耕作和技术)对农业生产产生积极影响。因此,农民的适应战略有助于减轻气候变化对农业部门的负面影响。最高气温和最低气温、降水和降雨对农业生产有负面影响。然而,当农民在种植中采用上述适应策略时,这些因素对农业部门的影响似乎是积极的。家庭规模、农民受教育程度、农民年收入、耕地面积、灌溉面积、技术成本、适宜技术和政府财政支持对古吉拉特邦农业增产有积极贡献。
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引用次数: 1
Determinants of Market Participation among Dairy Producers in Southwestern Ethiopia 埃塞俄比亚西南部乳制品生产者市场参与的决定因素
Pub Date : 2022-03-11 DOI: 10.36956/rwae.v3i1.486
Kassa Tarekegn, Yishak Shitaye
Though Bench Sheko and Sheka zones have great potential for dairy production in Ethiopia, the majority of dairy producers’ could not get benefit from the sector in a sustainable way due to the low market participation problem. Hence, this study was designed to analyze determinants of market participation by dairy producers’ in Southwestern Ethiopia. Data from 160 sampled dairy producers were employed and analyzed by using the probit model. The model result shows the ownership of crossbreeds, utilization of improved livestock feeds and size of dairy cows’ ownership affect market participation decisions significantly and positively. While the number of children below six years and distance from the market is the significant factors determining the likelihood of dairy market participation negatively in southwestern Ethiopia. Therefore, demonstrations of improved livestock breed through supplying improved bulls and artificial insemination technologies, demonstration of improved livestock forages and concentrates through training, and organizing dairy marketing cooperative and dairy products collection centers are suggested to improve the market participation in the study area.
尽管Bench Sheko和Sheka区在埃塞俄比亚的乳制品生产方面具有巨大潜力,但由于市场参与度低,大多数乳制品生产商无法以可持续的方式从该部门获得利益。因此,本研究旨在分析埃塞俄比亚西南部乳制品生产商市场参与的决定因素。采用probit模型对160家抽样乳制品生产商的数据进行了分析。模型结果表明,杂交品种拥有量、改良牲畜饲料利用率和奶牛拥有量对市场参与决策有显著的正向影响。在埃塞俄比亚西南部,6岁以下儿童的数量和与市场的距离是决定乳制品市场参与可能性的重要因素。因此,建议通过提供改良公牛和人工授精技术进行家畜改良品种示范,通过培训进行家畜改良饲料和精料示范,组织奶牛销售合作社和乳制品收集中心,提高研究区市场参与度。
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引用次数: 1
Effects of Mixed Sowing of Chinese Milk Vetch (Astragalus sinicus L.) and Rape on Rice Yield and Soil Physical and Chemical Properties 黄芪与油菜混播对水稻产量及土壤理化性质的影响
Pub Date : 2022-03-04 DOI: 10.36956/rwae.v3i1.483
Qiliang Hu, Binjuan Yang, Na Li, Ning Liu, Shu-jiang Guo, Guoqin Huang
In order to explore the effects of Chinese milk vetch and rape mixed sowing on rice yield and soil fertility, and select the best planting mode, five different ratios of Chinese milk vetch and rape mixed sowing were designed to study the effects of different ratios on rice yield, soil physicochemical properties and soil fertility in 0-10 cm, 10- 20 cm and 20-30 cm layers. Grey correlation analysis of soil nutrient and yield was carried out by using grey system theory. The influence of different soil layers on soil chemical properties was greater than physical properties. The effect on shallow soil is greater than that on deep soil. Mixed sowing of Chinese milk vetch and rape improved soil comprehensive fertility in all soil layers, and rice yield was the highest in 2M2R treatment. pH value had the greatest effect on actual rice yield, followed by available potassium. Therefore, mixed sowing of Chinese milk vetch and rape could significantly increase the yield of early rice and soil nutrient content, and the pattern of “1/2 Chinese milk vetch +1/2 rape-early rice-late rice” had the best effect.
为了探讨紫云英与油菜混播对水稻产量和土壤肥力的影响,选择最佳种植模式,设计了5种不同比例的紫云英与油菜混播,研究了不同比例在0-10 cm、10- 20 cm和20-30 cm土层上对水稻产量、土壤理化性质和土壤肥力的影响。运用灰色系统理论对土壤养分与产量进行了灰色关联分析。不同土层对土壤化学性质的影响大于物理性质的影响。对浅层土壤的影响大于深层土壤。紫薇与油菜混播提高了各土层的土壤综合肥力,水稻产量以2M2R处理最高。pH值对水稻实际产量影响最大,速效钾次之。因此,紫薇与油菜混播能显著提高早稻产量和土壤养分含量,以“1/2紫薇+1/2油菜-早稻-晚稻”模式效果最好。
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引用次数: 0
Effects of Different Intercropping Models on Growth and Yield Traits of Maize in Red Soil Dryland 不同间作模式对红壤旱地玉米生长及产量性状的影响
Pub Date : 2022-03-04 DOI: 10.36956/rwae.v3i1.482
Shu-jiang Guo, Shujuan Li, Guoqin Huang
In order to develop the suitable planting mode of maize in red soil dryland, improve the related plant and ear characters of maize, promote high quality and high yield, and improve economic benefits. The experiment was conducted in the Science and Technology Park of Jiangxi Agricultural University from May 13, 2020 to October 18, 2020 and from May 5, 2021 to October 7, 2021. Taking maize as the control, three intercropping treatments of maize intercropping soybean, maize intercropping peanut and maize intercropping sweet potato were set up to compare their effects on agronomic characters such as plant height, stem diameter and ear width of maize and yield. The results showed that the plant height and ear height of maize intercropping soybean reached the maximum in two years, with plant height of 208.9 cm and 191.9 cm, ear height of 80.2 cm and 58.4 cm, respectively. The ear length and grain number per row of intercropping treatment were better than that of monoculture treatment. The ear length of maize intercropping and soybean reached the maximum, which were 16.5 cm and 19.0 cm respectively, and the grain number per row was also higher than that of other treatments. The yield of maize intercropping soybean was the highest, 42.1 kg and 43.5 kg respectively in two years. Compared with monoculture, intercropping can improve stem diameter, ear height, ear length, grain number per row and other ear traits, so as to improve corn yield, among which maize intercropping soybean is the best. The results of grey correlation showed that ear length and plant height had a great influence on maize yield. The comprehensive analysis shows that the use of maize intercropping soybean model is conducive to achieve high quality and high yield.
为开发红壤旱地适宜的玉米种植模式,改善玉米相关植株性状和穗部性状,促进优质高产,提高经济效益。实验于2020年5月13日至2020年10月18日和2021年5月5日至2021年10月7日在江西农业大学科技园进行。以玉米为对照,设置玉米间作大豆、玉米间作花生和玉米间作甘薯3种处理,比较其对玉米株高、茎粗、穗宽等农艺性状及产量的影响。结果表明:玉米间作大豆的株高和穗高分别达到208.9 cm和191.9 cm,穗高分别达到80.2 cm和58.4 cm,为2年来最高;间作处理的穗长和行粒数均优于单作处理。玉米间作穗长和大豆间作穗长最大,分别为16.5 cm和19.0 cm,行粒数也高于其他处理。玉米间作大豆产量最高,两年分别为42.1 kg和43.5 kg。与单作相比,间作能改善玉米茎粗、穗高、穗长、行粒数等穗部性状,从而提高玉米产量,其中玉米间作大豆效果最好。灰色关联结果表明,穗长和株高对玉米产量影响较大。综合分析表明,采用玉米间作大豆模式有利于实现优质高产。
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引用次数: 1
Comparative Study on Profitability of Sorghum-Legumes Intercropping Systems in Ethiopia 埃塞俄比亚高粱-豆科作物间作效益比较研究
Pub Date : 2021-10-08 DOI: 10.36956/rwae.v2i4.450
Dessalegn Ayana Deressa
The imbalance between the crop production and population growth is currently the major issue in Ethiopia. To feed the growing population, increasing the production of food through growing more crop types in the same field as an intercropping is the right strategy. The study was aimed at evaluating the profitability of sorghum-legume intercropping on yield of sorghum. Intercropping sorghum with legumes crops increases the land productivity as its Land Equivalent Ratio is greater than one. In these cases, the land equivalent ratio is greater than one indicating the benefits of intercropping.  In general, legume crops contributed to the yield of sorghum either intercropped with legume or grown up using residual contribution of legumes after a year. Therefore, for maximum sorghum production, farmers should plant either as intercrop or after residual effect of legumes crops. In addition to agronomic parameters used to compare the advantages of any cropping system in small scale farming conditions, total gross monetary value is also used to evaluate economic advantages of intercropping system.
粮食生产和人口增长之间的不平衡是目前埃塞俄比亚的主要问题。为了养活不断增长的人口,通过在同一块土地上种植更多作物类型来增加粮食产量,作为间作是正确的策略。本研究旨在评价高粱-豆科作物间作对高粱产量的影响。高粱与豆科作物间作的土地等效比大于1,提高了土地生产力。在这种情况下,土地当量比大于1,表明间作的效益。一般来说,豆科作物间作豆科作物或在一年后用豆科作物的残余贡献来生长对高粱的产量有贡献。因此,为了最大限度地提高高粱的产量,农民应该间作或在豆科作物的残余效应之后种植高粱。除了用于比较任何一种种植制度在小规模耕作条件下的优势的农艺参数外,总货币总值也用于评价间作制度的经济优势。
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引用次数: 0
Study on the Ecological Circulation Agricultural System of Combining Planting and Raising of Berry Tea 浆果茶种养结合的生态循环农业系统研究
Pub Date : 2021-09-30 DOI: 10.36956/rwae.v2i4.449
Defang Cao, Xiuju Zhang, S. Mo, Guihua Luo, Zhen Qin, Hanfeng Qin
Berry tea is a perennial vine. Its scientific name is ampelopsis grossedentata. It belongs to vitaceae and is widely spread in the Tujia people of Xiangxi, Hunan Province. By adopting appropriate agricultural planting technology, rational use of organic selenium fertilizer and nutritional conditioner, we can produce high-quality berry tea with more healthy and even medicinal value and high selenium content, and realize double protection of human health with high selenium content and high flavonoids. Under the existing planting system, through the supplement of breeding links, constructing ecological recycling agricultural system combining planting and raising, not only can greatly enrich the supply of table agricultural products, but also can effectively ensure the high quality and high safety of agricultural products, and can effectively enrich the local agricultural industrial structure.Key words: berry tea; selenium-enriched; ecological agriculture; industrial revitalization and economic development
浆果茶是一种多年生藤本植物。它的学名是葡萄树。属葡萄科,广泛分布于湖南湘西土家族。通过采用适宜的农业种植技术,合理使用有机硒肥和营养调理剂,可以生产出更具有健康均匀药用价值和高硒含量的优质浆果茶,实现高硒含量和高黄酮含量对人体健康的双重保护。在现有的种植体系下,通过补充养殖环节,构建种植业与养殖业相结合的生态循环农业体系,不仅可以大大丰富餐桌农产品的供给,而且可以有效保证农产品的高质量、高安全,可以有效丰富当地的农业产业结构。关键词:浆果茶;selenium-enriched;生态农业;振兴产业,发展经济
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引用次数: 0
Introduction to the Field Practice and Application Analysis of “Century Tianwang Bio-Organic Fertilizer” in the Past 20 Years “世纪天王生物有机肥”20年来的田间实践与应用分析
Pub Date : 2021-09-30 DOI: 10.36956/rwae.v2i4.448
Hongfeng Sun, Hongwei Luan, Xipin Chen, G. Jiang, Yulin Peng, Cheng-Xiao Sun
Abstract:Ensuring food security, increasing farmers’ income and improving people’s living standards are the focus of attention of all countries in the world today. “Centrey Tianwang” biological organic fertilizer has been upgraded to multi-functional biological organic fertilizer innovation, accepted as a new invention patent. “Centrey Tianwang” multifunctional biological organic fertilizer is a long-term natural biological organic fertilizer with high concentration. It is a new kind of slow-release fertilizer, with both quick and long-term effects. It can both fully meet the nutrient requirements of the crop, and maintain water and fertilizer, improve soil and prevent disease. It can not only control agriculture pollution, improve the crop quality and promote the yield of various crops, but also have special effects on the improvement of saline-alkali land, restoration of polluted cultivated land and degradation of agricultural residues. It is a kind of slow-release, long-acting bio-organic fertilizer that does not need any other fertilizer to be used with field crops and does not need topdressing during the whole growing period of crops. “Centrey Tianwang” multi-functional bio-organic fertilizer collects the essences of various medicinal plants, natural minerals, nano organic compounds and aerospace microbial agents, through special process, refined and processed, non-toxic, harmless, without side effects.
摘要:保障粮食安全,增加农民收入,提高人民生活水平,是当今世界各国共同关注的焦点。“世纪天王”生物有机肥已升级为多功能生物有机肥创新产品,被认定为新发明专利。“世纪天王”多功能生物有机肥是一种长效高浓度天然生物有机肥。它是一种具有速效和长效双重作用的新型缓释肥料。既能充分满足作物对养分的需求,又能保持水肥、改良土壤、预防病害。它不仅可以控制农业污染,提高作物品质,促进各种作物的产量,而且对盐碱地的改良,污染耕地的恢复和农残物的降解都有特殊的效果。它是一种缓释、长效的生物有机肥,不需要任何其他肥料与大田作物一起施用,作物整个生育期不需要追肥。“世纪天王”多功能生物有机肥,采集多种药用植物、天然矿物质、纳米有机化合物和航天微生物剂的精华,经过特殊工艺精制加工,无毒、无害、无副作用。
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引用次数: 0
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Research on World Agricultural Economy
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