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Case Study on Varietal Mixed Planting as an Option of Variety Use in Sugarcane in Tanegashima 种子岛甘蔗品种混作选择的实例研究
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.63.83
H. Takaragawa, Y. Izumikawa, Satoshi Nomakuchi, E. Taira, M. Ueno, Y. Kawamitsu
{"title":"Case Study on Varietal Mixed Planting as an Option of Variety Use in Sugarcane in Tanegashima","authors":"H. Takaragawa, Y. Izumikawa, Satoshi Nomakuchi, E. Taira, M. Ueno, Y. Kawamitsu","doi":"10.11248/JSTA.63.83","DOIUrl":"https://doi.org/10.11248/JSTA.63.83","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132076216","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}
引用次数: 0
Effects of Slope-related Soil Properties on Upland Rice Growth and Yield under Slash-and-burn System in South Konawe Regency, Southeast Sulawesi Province, Indonesia 印尼苏拉威西省东南部南科纳威县刀耕火种制度下坡地相关土壤性状对旱稻生长和产量的影响
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.62.60
Mayumi Kikuta, Yoshinori Yamamoto, Y. B. Pasolon, F. S. Rembon, A. Miyazaki, D. Makihara
{"title":"Effects of Slope-related Soil Properties on Upland Rice Growth and Yield under Slash-and-burn System in South Konawe Regency, Southeast Sulawesi Province, Indonesia","authors":"Mayumi Kikuta, Yoshinori Yamamoto, Y. B. Pasolon, F. S. Rembon, A. Miyazaki, D. Makihara","doi":"10.11248/JSTA.62.60","DOIUrl":"https://doi.org/10.11248/JSTA.62.60","url":null,"abstract":"This study examined how slope-related soil physicochemical properties affect the growth and yield of upland rice subjected to slash-and-burn. The yield survey and soil analysis were performed at a hillside farm in Southeast Sulawesi Province, Indonesia. Organic-C, total-N, available-P and exchangeable-Ca, Mg, and K tended to increase further down the slope, leading to greater rice growth and yield. The resultant yield increase was mainly attributable to higher spikelet number per square meter. Total-N explained variation in spikelet number per panicle, but not variation in grain yield. Among the tested soil physicochemical parameters, only organic-C was significantly and positively correlated with rice growth and yield. In addition, most other parameters increased with soil organic-C. These findings indicate that organic-C in the soil is important to the growth and yield of upland rice cultivated with slash-and-burn systems, although other complex relationships may exist between rice productivity, the environment, and agricultural management factors. Moreover, our results imply that position on a slope affect rice growth and yield.","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130030024","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}
引用次数: 1
Factors Influencing Recent Transformation and Future Development of Swidden Agriculture in Northern Laos 影响老挝北部瑞典农业近期转型和未来发展的因素
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.59.101
Chika Kameda, E. Nawata
{"title":"Factors Influencing Recent Transformation and Future Development of Swidden Agriculture in Northern Laos","authors":"Chika Kameda, E. Nawata","doi":"10.11248/JSTA.59.101","DOIUrl":"https://doi.org/10.11248/JSTA.59.101","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134112931","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}
引用次数: 1
Line Cultivation Method for Rehabilitation of Breeder’s Seed of Rice in Madagascar 马达加斯加水稻育种者种子恢复的系栽培方法
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.59.140
K. Arai, K. Yoshii, N. Kabaki, T. Hoshino
{"title":"Line Cultivation Method for Rehabilitation of Breeder’s Seed of Rice in Madagascar","authors":"K. Arai, K. Yoshii, N. Kabaki, T. Hoshino","doi":"10.11248/JSTA.59.140","DOIUrl":"https://doi.org/10.11248/JSTA.59.140","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134273825","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}
引用次数: 1
Cost Analysis of the Shrimp-Based Cropping System in Coastal Bangladesh::A Village Level Study 孟加拉国沿海地区以虾为主的种植系统的成本分析:一项村庄层面的研究
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.57.77
Md. Rashedur Rahman, K. Ando, S. Takeda
{"title":"Cost Analysis of the Shrimp-Based Cropping System in Coastal Bangladesh::A Village Level Study","authors":"Md. Rashedur Rahman, K. Ando, S. Takeda","doi":"10.11248/JSTA.57.77","DOIUrl":"https://doi.org/10.11248/JSTA.57.77","url":null,"abstract":"The present study provides an analysis of the comparative costs of cropping systems based on aman and boro rice varieties and shrimp in coastal Bangladesh. The research was conducted in the Shuktia village under Tala Upazila of Satkhira District. The results revealed that the comparative production cost per hectare of land was higher for both aman and boro rice (45,737 taka/ha and 54,411 taka/ha, respectively) than for shrimp (43,853 taka/ha), whereas the gross income, net income, and benefit cost ratio (BCR) were higher for shrimp culture. The shrimp-boro rice rotating cropping system was about 1.56 times superior to a purely rice-based cropping system. The introduction of shrimp-boro rice cropping systems changed the local land tenure, and brought a degree of economic freedom for the local farmers, both landlords and tenants. The paper concludes that a rotating shrimp-boro rice cropping system has exerted a positive economic impact on the livelihood of local farmers on the southwestern coast of Bangladesh, the area under study.","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134315010","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}
引用次数: 6
Anatomical Study on Wax apple ( Syzygium samarangense ) Roots under Long-term Water-logged Conditions 长期淹水条件下蜡苹果根系的解剖学研究
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.59.1
A. Tuladhar, S. Ohtsuka, N. Nii
{"title":"Anatomical Study on Wax apple ( Syzygium samarangense ) Roots under Long-term Water-logged Conditions","authors":"A. Tuladhar, S. Ohtsuka, N. Nii","doi":"10.11248/JSTA.59.1","DOIUrl":"https://doi.org/10.11248/JSTA.59.1","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133778641","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}
引用次数: 6
Effects of Nitrogen Application on Off-Season Yam Cropping after Lowland Rice in a Derived Savanna Zone in Nigeria 氮肥施用对尼日利亚热带稀树草原衍生区低地稻后山药种植的影响
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.59.146
H. Kikuno, H. Shiwachi, Y. Hasegawa, Junya Ohata, R. Asiedu
{"title":"Effects of Nitrogen Application on Off-Season Yam Cropping after Lowland Rice in a Derived Savanna Zone in Nigeria","authors":"H. Kikuno, H. Shiwachi, Y. Hasegawa, Junya Ohata, R. Asiedu","doi":"10.11248/JSTA.59.146","DOIUrl":"https://doi.org/10.11248/JSTA.59.146","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115414028","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}
引用次数: 2
Influence of Three Soil Types in Okinawa, Japan and N, P, K Fertilizations on Growth, Yield, and Oxypinnatanine Concentration of Hemerocallis fulva L. var. sempervirens 日本冲绳3种土壤类型及N、P、K施肥对黄萱草生长、产量和氧嘌呤浓度的影响
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.60.109
N. Nguyen, S. Arima, T. Konishi, Y. Ogawa, X. D. Tran, S. Adaniya, Keiji Motomura
{"title":"Influence of Three Soil Types in Okinawa, Japan and N, P, K Fertilizations on Growth, Yield, and Oxypinnatanine Concentration of Hemerocallis fulva L. var. sempervirens","authors":"N. Nguyen, S. Arima, T. Konishi, Y. Ogawa, X. D. Tran, S. Adaniya, Keiji Motomura","doi":"10.11248/JSTA.60.109","DOIUrl":"https://doi.org/10.11248/JSTA.60.109","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115789447","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}
引用次数: 2
Changes in Leaf and Trunk Characteristics Related to Starch Yield with Age in Two Sago Palm Folk Varieties Grown near Jayapura, Papua, Indonesia 印度尼西亚查亚普拉附近两个西米棕榈民间品种叶片和树干特征与淀粉产量随年龄的变化
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.64.61
Yoshinori Yamamoto, J. Limbongan, Kazuo Katayama, Tetsushi Yoshida, A. Miyazaki, J. Shoon, Pasolon Yulius Barra, Hubertus Matanubun, Rembon Fransiscus Suramas, Nicholus
{"title":"Changes in Leaf and Trunk Characteristics Related to Starch Yield with Age in Two Sago Palm Folk Varieties Grown near Jayapura, Papua, Indonesia","authors":"Yoshinori Yamamoto, J. Limbongan, Kazuo Katayama, Tetsushi Yoshida, A. Miyazaki, J. Shoon, Pasolon Yulius Barra, Hubertus Matanubun, Rembon Fransiscus Suramas, Nicholus","doi":"10.11248/JSTA.64.61","DOIUrl":"https://doi.org/10.11248/JSTA.64.61","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124138645","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}
引用次数: 3
Utilizing Immature Macadamia Nuts in Prevention of Thermal Decomposition of Polyunsaturated Fatty Acids (PUFA): Case Study with Docosahxaenoic Acid (DHA):Case Study with Docosahexaenoic Acid (DHA) 利用未成熟夏威夷果防止多不饱和脂肪酸(PUFA)的热分解:二十二碳六烯酸(DHA)的案例研究
Tropical agriculture and development Pub Date : 1900-01-01 DOI: 10.11248/JSTA.54.140
Paul N. Naranja, M. Mwasaru, H. Koaze, Y. Kubo, N. Baba
{"title":"Utilizing Immature Macadamia Nuts in Prevention of Thermal Decomposition of Polyunsaturated Fatty Acids (PUFA): Case Study with Docosahxaenoic Acid (DHA):Case Study with Docosahexaenoic Acid (DHA)","authors":"Paul N. Naranja, M. Mwasaru, H. Koaze, Y. Kubo, N. Baba","doi":"10.11248/JSTA.54.140","DOIUrl":"https://doi.org/10.11248/JSTA.54.140","url":null,"abstract":"","PeriodicalId":118800,"journal":{"name":"Tropical agriculture and development","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124350494","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}
引用次数: 0
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