Pub Date : 2024-07-15DOI: 10.11648/j.ijaas.20241004.11
Theodrose Sisay, K. Tesfaye, Mezegebu Getnet, N. Dechassa, M. Ketema
Maize (Zea mays L.) is one of the most principal cereal crops ranking first in production in Ethiopia, predominantly produced and consumed directly by the smallholder farmers in the Great Rift Valley (GRV) of Ethiopia. Common bean (Phaseolus vulgaris) is also the most important legume crops as the source of protein and export commodity in the GRV. However, the average maize and common bean yields in Ethiopia are still low due to abiotic, biotic and socioeconomic constraints. In this regard, Crop simulation models (CSMs) are used in predicting growth and yield of crops and associated yield gaps under various management options and changing climatic parameters that are profitable with minimal unwanted impacts on the environment. Before using the CSMs, it is necessary to specify model parameters and understand the uncertainties associated with simulating variables that are needed for decision-making. Therefore, the research objective of this study was to calibrate and evaluate the performance of the CERES-Maize and CROPGRO-Dry bean CSMs of the Decision Support System for Agrotechnology Transfer (DSSAT) in the GRV of Ethiopia. The generalized likelihood uncertainty estimation (GLUE) method was used to estimate the genetic parameters of the CSM-CERES-Maize and CROPGRO-Dry bean models. Root mean squared error (RMSE) and Index of agreement (I) were used to evaluate the performance of the models. The DSSAT model reasonably reproduced observations for days to anthesis, days to physiological maturity, and grain yields, with values for the index of agreement of 0.97, 0.88 and 0.61 for CERES-Maize and 0.84, 0.75 and 0.51 for CROPGRO-Dry bean. Similarly, root mean square errors were moderate for days to anthesis (1.2 and 1.2 days), maturity (4.1 and 1.6 days), and yield (0.8 and 1.1 t/ha) for CERES-Maize and CROPGRO-Dry bean, respectively. The model has been successfully calibrated and evaluated for maize and common bean crop varieties and can now it can be taken for further applications in evaluating various crop and soil management options including climate smart agriculture technologies and climate change impact studies.
{"title":"Calibration and Evaluation of CERES-Maize and CROPGRO-Dry Bean Crop Simulation Models of the DSSAT in the Great Rift Valley Region of Ethiopia","authors":"Theodrose Sisay, K. Tesfaye, Mezegebu Getnet, N. Dechassa, M. Ketema","doi":"10.11648/j.ijaas.20241004.11","DOIUrl":"https://doi.org/10.11648/j.ijaas.20241004.11","url":null,"abstract":"Maize (Zea mays L.) is one of the most principal cereal crops ranking first in production in Ethiopia, predominantly produced and consumed directly by the smallholder farmers in the Great Rift Valley (GRV) of Ethiopia. Common bean (Phaseolus vulgaris) is also the most important legume crops as the source of protein and export commodity in the GRV. However, the average maize and common bean yields in Ethiopia are still low due to abiotic, biotic and socioeconomic constraints. In this regard, Crop simulation models (CSMs) are used in predicting growth and yield of crops and associated yield gaps under various management options and changing climatic parameters that are profitable with minimal unwanted impacts on the environment. Before using the CSMs, it is necessary to specify model parameters and understand the uncertainties associated with simulating variables that are needed for decision-making. Therefore, the research objective of this study was to calibrate and evaluate the performance of the CERES-Maize and CROPGRO-Dry bean CSMs of the Decision Support System for Agrotechnology Transfer (DSSAT) in the GRV of Ethiopia. The generalized likelihood uncertainty estimation (GLUE) method was used to estimate the genetic parameters of the CSM-CERES-Maize and CROPGRO-Dry bean models. Root mean squared error (RMSE) and Index of agreement (I) were used to evaluate the performance of the models. The DSSAT model reasonably reproduced observations for days to anthesis, days to physiological maturity, and grain yields, with values for the index of agreement of 0.97, 0.88 and 0.61 for CERES-Maize and 0.84, 0.75 and 0.51 for CROPGRO-Dry bean. Similarly, root mean square errors were moderate for days to anthesis (1.2 and 1.2 days), maturity (4.1 and 1.6 days), and yield (0.8 and 1.1 t/ha) for CERES-Maize and CROPGRO-Dry bean, respectively. The model has been successfully calibrated and evaluated for maize and common bean crop varieties and can now it can be taken for further applications in evaluating various crop and soil management options including climate smart agriculture technologies and climate change impact studies.\u0000","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141833128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-11DOI: 10.11648/j.ijaas.20241002.11
Brice Ossete, Auguste Issali, Jean Mokolo, Joseph Mpika, Attibayeba Null
The aim of the present study was to evaluate the influence of hen droppings on the emergence and growth of local sesame. A 5 x 3 complete bi-factorial combination, represented by the factors "provenance" and "dose", was inserted into a complete randomised block design. Three replicates were used. Here, the treatment was defined as the combination of five variants of the provenance factor with the three variants of the dose factor. A total of fifteen treatments, repeated 3 times, were studied. Five variables were monitored in the field: field emergence percentage, plant height (cm), crown diameter (mm), number of primary branches and number of leaves emitted on the main stem. The results showed that the curves for percentage emergence over 9 weeks showed almost similar behaviour for the last observation at week 9. In such cases, some statistics revealed significant differences not only between blocks but also between treatments. This suggested that the visual similarity in factor behaviour, for such variables, may be real or fake. For variables that did not discriminate between blocks, the idea of dividing the experimental site into blocks was not justified. Provenances P1 and P5 appeared to be insensitive to organic fertiliser inputs, whereas P2, P3 and P4 were it. This could be explained by whether or not they were sensitive to competition effects. For diameter at collar, treatments P2D1 and P5D1 combining Mouyondzi (P2) and Ngoko (P5) provenances as well as P4D1 and P4D2 combining Boundji (P4) provenance could be recommended to farmers located in the southern part of Brazzaville department. Nevetheless, their insensitivity could temper such recommendation. Concerning plant height, treatments P5D1 and P5D2 could be recommended to farmers located in the southern part of the Brazzaville region. Nevertheless, its supposed insensitivity at doses of hence droppings tempers our recommendations. For the number of leaves emitted and number of primary branches, treatments P5D0 and P5D1 as well as P5D1 and P5D2 combining provenance P5 could be recommended to farmers located in the southern part of the Brazzaville région at condition that its supposed insensitivity is not confirmed during confirmation trial.
{"title":"Influence of Two Doses of Hen Droppings on Emergence and Growth of Five Provenances of <i>Sesamum indicum</i> L. Grown on the Sands of Brazzaville, Congo","authors":"Brice Ossete, Auguste Issali, Jean Mokolo, Joseph Mpika, Attibayeba Null","doi":"10.11648/j.ijaas.20241002.11","DOIUrl":"https://doi.org/10.11648/j.ijaas.20241002.11","url":null,"abstract":"The aim of the present study was to evaluate the influence of hen droppings on the emergence and growth of local sesame. A 5 x 3 complete bi-factorial combination, represented by the factors \"provenance\" and \"dose\", was inserted into a complete randomised block design. Three replicates were used. Here, the treatment was defined as the combination of five variants of the provenance factor with the three variants of the dose factor. A total of fifteen treatments, repeated 3 times, were studied. Five variables were monitored in the field: field emergence percentage, plant height (cm), crown diameter (mm), number of primary branches and number of leaves emitted on the main stem. The results showed that the curves for percentage emergence over 9 weeks showed almost similar behaviour for the last observation at week 9. In such cases, some statistics revealed significant differences not only between blocks but also between treatments. This suggested that the visual similarity in factor behaviour, for such variables, may be real or fake. For variables that did not discriminate between blocks, the idea of dividing the experimental site into blocks was not justified. Provenances P1 and P5 appeared to be insensitive to organic fertiliser inputs, whereas P2, P3 and P4 were it. This could be explained by whether or not they were sensitive to competition effects. For diameter at collar, treatments P2D1 and P5D1 combining Mouyondzi (P2) and Ngoko (P5) provenances as well as P4D1 and P4D2 combining Boundji (P4) provenance could be recommended to farmers located in the southern part of Brazzaville department. Nevetheless, their insensitivity could temper such recommendation. Concerning plant height, treatments P5D1 and P5D2 could be recommended to farmers located in the southern part of the Brazzaville region. Nevertheless, its supposed insensitivity at doses of hence droppings tempers our recommendations. For the number of leaves emitted and number of primary branches, treatments P5D0 and P5D1 as well as P5D1 and P5D2 combining provenance P5 could be recommended to farmers located in the southern part of the Brazzaville région at condition that its supposed insensitivity is not confirmed during confirmation trial.","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140714574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-29DOI: 10.11648/j.ijaas.20241001.16
Qinghua Tang, Lu Lilan, Qinglong Wang, Chaoxu Li, Liu Kui, Wu Wenli
The Republic of Kiribati (Kiribati) and the Republic of Fiji (Fiji) are two island countries in the Middle and Eastern Pacific Ocean, respectively. Coconut (Cocos nucifera L.), banana (Musa spp.), sugarcane (Saccharum officinarum L.), and breadfruit (Artocarpus incisa (Thunb.) L.) are the primary economic crops. To date, there have been few reports on the status of agricultural diseases and pests in these countries. From June 6 to June 16, 2023, our team investigated agricultural diseases and pests in Kiribati and Fiji. Thirty-six diseases, five pests and one parasitic plant from twenty-eight species of plants were identified in Kiribati. Among the deleterious organisms, coconut gray spot (Pestalotiopsis palmarum (Cooke) Steyaert), banana Cordana leaf spot (Cordana musae (Zimm) Hhon), hala (pandanus) leaf blight (Unidentified pathogen), breadfruit anthracnose (Colletotrichum spp.), frangipani rust (Coleosporium plumierae Pat.) and noni anthracnose (Colletotrichum spp.) were predominant. A total of twenty-seven diseases and one parasitic plant were identified on twenty-one species of plants in Fiji. Mango bacterial black spot (Xanthomonas campestris pv. mangiferaeindicae), banana black leaf streak (Pseudocercospora musae (Zimm.) Deighton), pumpkin virus disease (Unidentified), and frangipani rust (Coleosporium plumierae Pat.) were prevalent. The results of our survey could provide the governments of Kiribati and Fiji with basic data to control the primary agricultural diseases and pests in their countries.
{"title":"Investigation of Agricultural Diseases and Pests in the Republic of Kiribati and the Republic of Fiji","authors":"Qinghua Tang, Lu Lilan, Qinglong Wang, Chaoxu Li, Liu Kui, Wu Wenli","doi":"10.11648/j.ijaas.20241001.16","DOIUrl":"https://doi.org/10.11648/j.ijaas.20241001.16","url":null,"abstract":"The Republic of Kiribati (Kiribati) and the Republic of Fiji (Fiji) are two island countries in the Middle and Eastern Pacific Ocean, respectively. Coconut (Cocos nucifera L.), banana (Musa spp.), sugarcane (Saccharum officinarum L.), and breadfruit (Artocarpus incisa (Thunb.) L.) are the primary economic crops. To date, there have been few reports on the status of agricultural diseases and pests in these countries. From June 6 to June 16, 2023, our team investigated agricultural diseases and pests in Kiribati and Fiji. Thirty-six diseases, five pests and one parasitic plant from twenty-eight species of plants were identified in Kiribati. Among the deleterious organisms, coconut gray spot (Pestalotiopsis palmarum (Cooke) Steyaert), banana Cordana leaf spot (Cordana musae (Zimm) Hhon), hala (pandanus) leaf blight (Unidentified pathogen), breadfruit anthracnose (Colletotrichum spp.), frangipani rust (Coleosporium plumierae Pat.) and noni anthracnose (Colletotrichum spp.) were predominant. A total of twenty-seven diseases and one parasitic plant were identified on twenty-one species of plants in Fiji. Mango bacterial black spot (Xanthomonas campestris pv. mangiferaeindicae), banana black leaf streak (Pseudocercospora musae (Zimm.) Deighton), pumpkin virus disease (Unidentified), and frangipani rust (Coleosporium plumierae Pat.) were prevalent. The results of our survey could provide the governments of Kiribati and Fiji with basic data to control the primary agricultural diseases and pests in their countries.","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-18DOI: 10.11648/j.ijaas.20241001.11
Nafisat Muhammad Ndayankpa, O. A. Falusi, O. Daudu, M. O. Adebola, Abdulhakeem Abubakar
{"title":"Proximate Compositions on Leaves & Seeds of Selected Drumsticks (<i>Moringa oleifera</i> lam.) from Northern Nigeria","authors":"Nafisat Muhammad Ndayankpa, O. A. Falusi, O. Daudu, M. O. Adebola, Abdulhakeem Abubakar","doi":"10.11648/j.ijaas.20241001.11","DOIUrl":"https://doi.org/10.11648/j.ijaas.20241001.11","url":null,"abstract":"","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139616046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-06DOI: 10.11648/j.ijaas.20230906.14
Brice Leng Tchang, M. Tellah, Dassidi Nideou, Nestor Odjigue, Michel Assadi, Youssouf Mopate Logtene
{"title":"Guinea Fowl Feeding Practices in the Western Tandjile Department, Chad","authors":"Brice Leng Tchang, M. Tellah, Dassidi Nideou, Nestor Odjigue, Michel Assadi, Youssouf Mopate Logtene","doi":"10.11648/j.ijaas.20230906.14","DOIUrl":"https://doi.org/10.11648/j.ijaas.20230906.14","url":null,"abstract":"","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139186010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-24DOI: 10.11648/j.ijaas.20230906.13
Zanaba Adamu Asefa, Kumsa Negasa Andersa
{"title":"Determinants of the Adoption of Small-Scale Irrigation Technology and Its Impact on Household Food Security in Ethiopia: A Review","authors":"Zanaba Adamu Asefa, Kumsa Negasa Andersa","doi":"10.11648/j.ijaas.20230906.13","DOIUrl":"https://doi.org/10.11648/j.ijaas.20230906.13","url":null,"abstract":"","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139242101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental Study on the Effect of Low-Temperature Air Plasma Activated Water on Seed Germination and Seedling Growth of Maize","authors":"Zifeng Wang, Tianyi Ren, Minqi Zhou, Shuo Chen, Dexin Fu, Si Qin","doi":"10.11648/j.ijaas.20230906.12","DOIUrl":"https://doi.org/10.11648/j.ijaas.20230906.12","url":null,"abstract":"","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139253785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-17DOI: 10.11648/j.ijaas.20230906.11
Teha Romanu Benti
{"title":"Extent and Dynamics of Food Insecurity: The Case of Smallholder Farmers in Assosa District, Western Ethiopia","authors":"Teha Romanu Benti","doi":"10.11648/j.ijaas.20230906.11","DOIUrl":"https://doi.org/10.11648/j.ijaas.20230906.11","url":null,"abstract":"","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139263142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-28DOI: 10.11648/j.ijaas.20230905.15
Yao Kouakou Ladji, Gala Bi Trazie Jérémie, Binate Nozene, Yao Kouakou, Yao-Kouame Albert
{"title":"Effect of Controlled Fertilization on Crop Resistance to Stem Borers: Case of Sugarcane at the Borotou-Koro Integrated Agricultural Unit (North-West Côte d’ivoire)","authors":"Yao Kouakou Ladji, Gala Bi Trazie Jérémie, Binate Nozene, Yao Kouakou, Yao-Kouame Albert","doi":"10.11648/j.ijaas.20230905.15","DOIUrl":"https://doi.org/10.11648/j.ijaas.20230905.15","url":null,"abstract":"","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139311803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-28DOI: 10.11648/j.ijaas.20230905.16
Long-fei Jin, Meng-han Li, Liu Bin, Wen-ping Xu
{"title":"Study on the Application of Sex Pheromone in the Control of Asian Corn Borer<br /> <div> <br /> </div>","authors":"Long-fei Jin, Meng-han Li, Liu Bin, Wen-ping Xu","doi":"10.11648/j.ijaas.20230905.16","DOIUrl":"https://doi.org/10.11648/j.ijaas.20230905.16","url":null,"abstract":"","PeriodicalId":507730,"journal":{"name":"International Journal of Applied Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139312199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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