Crop Science Research Papers/Topics

EFFECT OF NITROGEN-PHOSPHORUS-SULFUR- BLENDED FERTILIZER AND RHIZOBIUM INOCULATION ON YIELD COMPONENTS AND YIELD OF COMMON BEAN (Phaseolus vulgaris L.) VARIETIES AT BOLOSSO BOMBE DISTRICT

Abstract: Low available phosphorus, total nitrogen, lack of adequate information on the use of Rhizobium inoculants and nitrogen-phosphorus-sulphure blended fertlizer are the major yield limiting factors for common bean production in the study area. Thus, the experiment was conducted at Bolosso Bombe District in 2016 (July-October), to evaluate the effect of Blended NPS fertilizer rates and Rhizobium inoculation on the yield components and yield of common bean varieties; and to identify econ...

EFFECT OF SEED RATE AND MINERAL NP FERTILIZERS ON YIELD COMPONENTS, YIELD, AND SEED OIL CONTENT OF BLACK CUMIN (Nigella sativa L.) IN GORO DISTRICT, SOUTH EASTERN ETHIOPIA

Abstract: Black cumin is a seed spice cultivated in Ethiopia for a long period of time. It is also cultivated in Goro district of Bale Zone by small land holder farmers. However, expected benefit of this crop is not being obtained by farmers since they are using in-appropriate agronomic practices such as inappropriate seed rate without any fertilizer application. Therefore, a field experiment was conducted in Goro district, south Eastern Ethiopia. The objective of the experiment was to deter...

MODELING GROWTH, DEVELOPMENT AND YIELD OF CHICKPEA AND ANALYSIS OF CLIMATE CHANGE IMPACT AND MANAGEMENT OPTIONS IN NORTHEASTERN ETHIOPIA

Abstract: Chickpea is one of the important cool season food legumes in northeastern Ethiopia but its productivity is adversely affected by various abiotic and biotic constraints among which climate variability is the major one. Research on impact of climate change and adaptation strategies for chickpea are very in the study region. Crop productivity must be increased to meet the rapidly growing food demands. New agricultural research system is needed to provide sufficient information. The pr...

EFFECTS OF BLENDED NPS AND NITROGEN FERTILIZERS RATES ON YIELD COMPONENTS AND YIELD OF TEF [Eragrostis tef (Zucc.) Trotter] AT ADOLA DISTRICT, SOUTHERN ETHIOPIA

Abstract: Tef is a highly valued crop in the national diet of Ethiopians and the major crops grown in Adola District, Guji Zone, Oromia Region. However, its productivity is low due to declining soil fertility as result of intensive soil erosion and long history of cultivation. Therefore, a field experiment was carried out on sub site of Bore Agricultural Research Center in Adola District during the 2018 main cropping season to assess the effect of blended NPS and N fertilizers rates on yield...

EFFECTS OF INTERCROPPING MAIZE (Zea mays L.) AND SOYBEAN (Glycine max (L.) MERRIL) AND BLENDED NPS FERTILIZER RATE ON YIELD AND YIELD RELATED TRAITS OF THE COMPONENT CROPS AT BAKO DISTRICT, W

Abstract: The field experiment was carried out at Bako Agricultural Research Center, during 2017 with the objectives of evaluating the effect of maize-soybean intercropping and blended NPS on yields and yield traits of the component crops. The experiment was laid out in RCBD with three replication in factorial combination of three soybean planting densities (25% (125, 000), 50% (250,000) and 75% (375,000)) and four fertilizer rate (0, 50, 100 and 150 kg ha-1). Maize (BH 546), and Soybean (Di...

EFFECT OF DIFFERENT LEVELS OF SUPPLEMENTARY IRRIGATION ON YIELD AND YIELD COMPONENT OF MAIZE (zea mays L) AT TEPPI, SOUTH WEST ETHIOPIA

Abstract: Maize (zea mays L) is one of the most important cereal crops grown in Ethiopia. Field experiment was undertaken on clay loam soil at Teppi national spice research center, Ethiopia during 2013/2014 cropping season with the objectives of investigating the effect of supplementary irrigation on yield and yield component of maize for achieving maximum crop yield in rain fed agriculture during belge season. The experiment was laid out in RCBD (Randomized Complete Block Design) with three...

IMPROVING THE QUANTITY AND QUALITY OF FORAGES PRODUCED FROM INTERCOPPING OF FABA BEAN (VICIA FABA L.) WITH FORAGE OATS IN LEMO DISTRICT, HADIYA ZONE, ETHIOPIA

Abstract: Faba bean (Vicia faba L.), also called ‘broad bean or horse bean’ is an annual crop, which mainly grows in the highlands of Ethiopia for human consumption. The objective of this study was to improve the quantity and quality of forages produced from intercropping of faba bean (Vicia faba L.) with forage oats (Avena sativa L.) on forage biomass, straw, grain yields, and straw quality. Farmers have an experience of not weeding faba bean plots to get more weed biomass. The field tr...

EFFECT OF FORAGE LEGUMES INTERCROPPED WITH MAIZE AT DIFFERENTPOPULATION ON YIELD AND YIELD RELATED TRAITS OF THE COMPONET CROPS AND ON SYSTEM PRODUCTIVITY AT DILLA, SOUTHERN ETHIOPIA

Abstract: Production of animal feed as a sole crop is almost impossible in most part of Ethiopia, particularly in the study area due to land shortage. Realizing the potential of intercropping to address this problem, a field experiment was conducted during 2016 crop season at Dilla, Southern Ethiopia; to identify the compatible forage legume for intercropping with maize, to determine appropriate plant population that cope up with maize intercropping and to evaluate the effect of intercroppin...

EFFECT OF SPATIAL ARRANGEMENTS OF FABA BEAN VARIETIES INTERCROPPED WITH BREAD WHEAT ON PRODUCTIVITY OF COMPONENT CROPS AT KULUMSA, SOUTHEASTERN ETHIOPIA

Abstract: A field experiment was conducted in 2019 main cropping season at Kulumsa Agricultural Research Center research station, Southeastern Ethiopia with the objectives of assessing the compatibility of faba bean and wheat intercropping, to select suitable varieties of faba bean under different spatial pattern in intercropping and to assess the economic profitability of intercropping faba bean with bread wheat(variety Hulluka) in the area. The treatments were three faba bean varieties (As...

POTENTIAL IMPACTS OF CLIMATE CHANGE ON MAIZE (Zea mays L.) PRODUCTION AND ADAPTATION OPTIONS IN TIGRAY REGION, NORTHERN ETHIOPIA

Abstract: The livelihoods of smallholder farmers in the Tigray region have been impacted by severe climate-related risks, including highly unpredictable rainfall and severe droughts. This study focuses on the densely populated semi-arid areas of Tigray (northern Ethiopia), where increasing land productivity is the only way to produce food sustainably. It is predicted that climate change will make some current issues worse and bring up new risks that go beyond what is now known. The Tigray re...

EFFECT OF CANE PORTIONS OF SUGARCANE (Saccharum officinarumL.) ON SPROUTING, GROWIH AND YIELD AT FINCHA’AA SUGAR CANE PLANTATION, WESTERN ETHIOPIA

Abstract: At Fincha’aa sugarcane plantation, the whole part of the cane is used for planting. However, this has affected cane establishment, yield and profit for cane production. Therefore, this study was designed to identify cane portions which enhance sugarcane establishment for improved cane productivity. A field experiment was conducted during 2022/2023 to determine the effect of different cane portions/cuttings on percent sprouting, subsequent growth and cane yield of sugarcane variet...

EFFECTS OF INTRA ROW SPACING AND NPSB FERTILIZER RATES ON YIELD COMPONENTS AND YIELD OF MAIZE (Zea maysL.) AT METTA DISTRICT, EAST ETHIOPIA

Abstract: Maize is becoming an important cereal crop in Ethiopia due to its use as sources of food security and income. However, the productivity of the crop inhibited by insufficient application of NPSB fertilizer rates and gaps intra row spacing. Therefore, a field experiment was conducted at Metta District to determine the effects of application of different rates of blended NPSB fertilizer and intra- row spacing on growth, yield components and yield of maize and to evaluate the cost bene...

EFFECTS OF LEGUME CROPS AND TIME OF INTERCROPPING ON INFESTATION OF STRIGA (Striga hermonthica) ON YIELDAND YIELD RELATED TRAITS OF SORGHUM (Sorghum bicolor L.) AT FEDIS EAST HARARGHE ZONE,

Abstract: Sorghum [Sorghum bicolor(L.)Moench] is the most important staple crop in Ethiopia and cultivated in a wide range of elevation and rainfall conditions .In the dry lowland areas of Ethiopia. Sorghum production and productivity is constrained by various abiotic and biotic factors including parasitic weed Striga. Several studies revealed that, the effect of Striga on sorghum can vary from 40% to 100% yield loss. Therefore, the objective of this study was to identify the best combinatio...

Seasonal dynamics and alternate hosts of thrips transmitted Iris yellow spot virus in Kenya

Abstract: Thrips-transmitted Iris yellow spot virus (IYSV) (Family Tospoviridae, Genus Orthotospovirus) is a major constraint to onion (Allium cepa L.) production in Kenya. Determining seasonal patterns of the vector and alternate hosts of the virus could help onion farmers plan Integrated Pest Management strategies; while allowing them to move away from calendar-based applications of insecticides. The objective of this study was to determine the distribution, seasonal variations and alterna...

Organisation du pool génique de Vigna unguiculata (L.) Walp. : croisements entre les formes sauvages et cultivées du niébé

Abstract: Organization of the genic pool of Vigna unguiculata (L.) Walp.: crosses between the wild and cultivated forms of cowpea. Cowpea (Vigna unguiculata (L.) Walp.) gene pool organization is studied on the basis of intra-specifi c crossing between cultivated (cv-gr. Unguiculata, cv-gr. Bifl ora) and wild forms of the species (var. spontanea, subsp. alba, subsp. stenophylla, subsp. pawekiae, subsp. baoulensis). The rate of crosses success, the rate of the obtained pods fruitfulness and th...


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