Search Result of "Guy Trebuil"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Diagnosis on Thai Agrarian Systems for Research Prioritization to Improve the Sustainability and Competitiveness of Cotton Production)

ผู้เขียน:ImgJean-Christophe Castella, ImgGuy Trebuil, ImgYves Crozat

สื่อสิ่งพิมพ์:pdf

Abstract

Since 1980, cotton production in Thailand has been decreasing steadily while the demand for cotton lint from the national textile industry jumped dramatically. Attempts made to raise again cultivated areas and yields were not able to alter significantly this declining trend. To understand the factors and conditions determining such an unfavorable evolution, diagnostic studies on cotton production systems were carried out by the Development-Oriented Research on Agrarian Systems (DORAS) project at the complementary field, farm and regional scales. Interdisciplinary teams implemented regional historical analyses and zonations, farming systems characterization and classification, as well as cropping systems surveys and experiments at two contrasted sites: the Maenam Kwae Noi valley in Kanchanaburi province and Chaibadan district of Lop Buri province. While insect pests were found to be the most important cause of cotton production declining sustainability and competitiveness at both sites, the findings suggest that the suitable ways to improve the current situation will differ at these two locations. While in the old cotton producing belt of Chaibadan, significant progress can still be achieved through technical improvements in pest, crop and labor management, in Kanchanaburi border area the social status of the migrating Mon cotton growers, very dependent on entrepreneurial village middlemen, makes organizational and social innovations a prerequisite to significant technical advances. An integrated set of agronomic research priorities dealing with cotton plant improvement for pest tolerance and high cottonseed and lint quality, integrated pest management and other decision support tools for better crop monitoring and management came out of these diagnostic analyses and were subsequently used to structure the following phase of DORAS project activities.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 031, Issue 5, Jan 97 - Dec 97, Page 1 - 15 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา สังคมศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : On-Farm Diagnosis on the Intensification of Vegetable Cropping System for Exports to Improve the Sustainability of Small-Scale Farming Systems in Kamphaengsaen Area )

ผู้เขียน:Imgดร.ชัชรี นฤทุม, รองศาสตราจารย์, ImgKitti Simsiriwong, ImgJean-Christophe Castella, ImgGuy Trebuil, ImgPramote Saritniran, ImgJongjate Jantrprasert

สื่อสิ่งพิมพ์:pdf

Abstract

Following one year global regional diagnosis based on theory of “evolution and differentiation of agrarian systems”, Development-Oriented Research on Agrarian System (DORAS) Project had defined labor intensive vegetable cropping system as a possible solution to improve sustainability of indebted small Agricultural Production Systems (APS) in Thung Kwang area, Kamphaengsaen district of Nakhon Pathom Province. Thanks to favourable circumstances concerning regional physical and socio-economical environment, green asparagus production has been successfully introduced in local cropping system in 1989. But implementation of such a project implies an action at different scales : monitoring of a farmer professional organization at regional level, study of the consequences of vegetable of export introduction at the APS level and establishment of technical references to advice the local producers at the plot level. This approach has increased long term sustainability of the target farmers by improving their economical results an labor force management without affecting the regional dominating sugarcane production. Producer group plays also a key role in small producers marketing power increase by porviding them with adapted technical, commercial and financial assistance. Finally, the wide economical impact on regional agrarian system should not hide some remaining problems such as long term effect of vegetable intensive production on ecological sustainability. Research/Development efforts are still to be contined.

Article Info
Kasetsart Journal of Social Sciences -- formerly Kasetsart Journal (Social Sciences), Volume 012, Issue 2, Jul 91 - Dec 91, Page 118 - 127 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Preliminary Evaluation of Promising IRCT Glandless Cotton Varieties in Thailand )

ผู้เขียน:ImgGuy Trebuil, Imgนายพิพัฒน์ วีระถาวร, ImgTrung Bieu Nguyeni

สื่อสิ่งพิมพ์:pdf

Abstract

Three recent varieties of glandless cotton from IRCT-CIRAD showed similar yields to the control Si Samrong 2 variety in an on-station productivity trial carried out during 1991 rainy season. An analysis of the agronomic, lint technology, yam technology and seed technology data obtained from this preliminary trial is presented. A tentative economic assessment of the benefits that such varieties could bring to the national ginning industry, subject to confirmation of these preliminary results by further crop protection studies and multilocation trials, is finally proposed. The ginning outturn of these glandless varieties was 3 to 4% higher than that of the control variety and they displayed better-quality lint, especially for length, uniformity, tenacity and maturity. When compared to Si Samrong 2, they also showed very significantly lower numbers of total neps and seed coat fragments. The three glandless varieties differ in fibre length, IRCT 413 being slightly longer than IRCT 411 (which has the highest ginning outturn); IRCT 412 is a long-fibre variety with high ginning outturn, but has more neps than the two other glandless cultivars.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 027, Issue 4, Oct 93 - Dec 93, Page 484 - 493 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา สังคมศาสตร์

หัวเรื่อง:การเปลี่ยนแปลงระบบเกษตรกรรมในเขตกำแพงแสน จังหวัดนครปฐม

ผู้เขียน:Imgดร.ทิพวัลย์ สีจันทร์, ผู้ช่วยศาสตราจารย์, Imgดร.ชัชรี นฤทุม, รองศาสตราจารย์, ImgPriyanuth Tangtongharuthai, ImgKitti Simsiriwong, Imgดร.ปราโมทย์ สฤษดิ์นิรันดร์, ผู้ช่วยศาสตราจารย์, Imgนายจงเจตน์ จันทร์ประเสริฐ, ImgGuy Trebuil

สื่อสิ่งพิมพ์:pdf

Abstract

The objective of this study was to distinguish and characterize the main changes of state of the agricultural production processes in Kamphaengsaen Area. The past transformations of Kamphaengsaen Agrarian System could be divided into 4 periods which present fundamental differences for the three main variables : the agricultural production system performed, the ecological conditions and events and the socio-economic environment. The current differentiation of the Agrarian System had its origin in the economic and social changes that occurred and affected the agricultural techniques carried out by the farmer.

Article Info
Kasetsart Journal of Social Sciences -- formerly Kasetsart Journal (Social Sciences), Volume 011, Issue 2, Jul 90 - Dec 90, Page 151 - 162 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา สังคมศาสตร์

หัวเรื่อง:ระดับถาวรภาพของระบบการทำฟาร์มกับการสั่งสมทุนการผลิต : การวิเคราะห์จากความแตกต่างของเกษตรกรในอำเภอไทรโยค จังหวัดกาญจนบุรี

ผู้เขียน:Imgดร.ชัชรี นฤทุม, รองศาสตราจารย์, ImgPongpan Trimongkolkul, Imgนางนิตยา เงินประเสริฐศรี, รองศาสตราจารย์, Imgนางสาวนาถ พันธุมนาวิน, ผู้ช่วยศาสตราจารย์, ImgKitti Simsiriwong, ImgGuy Trebuil

สื่อสิ่งพิมพ์:pdf

Abstract

From and economic and social point of view, it can be assumed that the possibility for farmer to accumulate productive capital (land, plantations, domestic animals, farm equipment and saving) on their Agricultural Production Systems (APS) was the indicator for their respective levels of sustainability. For the past forty years, a very important process of farm differentiation occurred across all provinces throughout the country. It is easier to observe and analyze it in “pioneer fronts” areas like the Maenam Kwae Noi Valley in Kanjanaburi where such research was carried out during 1991. Based on the APS respective functioning patterns and history, a typology of the local farming systems was built and used to assess the socioeconomic as well as agro-technical sustainability of each category of APS. Based on such a comparative analysis of farmers situations, a hierarchy of appropriate key questions and topics for research and extension was also proposed, in order to improve the sustainability of majority of small-scale production units.

Article Info
Kasetsart Journal of Social Sciences -- formerly Kasetsart Journal (Social Sciences), Volume 014, Issue 1, Jan 93 - Jun 93, Page 71 - 79 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา สังคมศาสตร์

หัวเรื่อง:การจำแนกระบบการทำฟาร์มโดยอาศัยประวัติและการดำเนินงาน ของเกษตรกรในเขต ตำบลทุ่งขวาง อำเภอกำแพงแสน

ผู้เขียน:Imgดร.ชัชรี นฤทุม, รองศาสตราจารย์, Imgดร.ทิพวัลย์ สีจันทร์, ผู้ช่วยศาสตราจารย์, ImgPriyanuth Tangtongharuthai, ImgKitti Simsiriwong, Imgดร.ปราโมทย์ สฤษดิ์นิรันดร์, ผู้ช่วยศาสตราจารย์, Imgนายจงเจตน์ จันทร์ประเสริฐ, ImgGuy Trebuil

สื่อสิ่งพิมพ์:pdf

Abstract

The objectives of this study were to identify and classify farmers, in order to diagnose their key problems and be able to plan appropriate research projects or development activities adapted for each type of farm. Preliminary results concerning 16 agricultural production systems which covered the whole diversity of the main types of holding in the area were presented. As a consequence, a farmer typology for Thung Kwang area which distinguished between 4 main types of APS was proposed : very small family holding ( A type) : cultivated area/family worker was less than 5 rais, with almost only family labour, their objective was to maximize the net income per land unit. Market-oriented medium sized family holding (B type) : cultivated area/family worker was 5-12 rais, there was some hired labour. Their objective aimed at the maximization of family labour productivity. Entrepreneurial holding (C type) : where cultivated area/family worker was more than 12 rais, hired labour was more important and their objective tended to be the maximization of the rate of profit. Capitalist APS (D type) : cultivated area/family worker was more than 25 rais, hired labour was predominant and their objective was rate of profit maximization.

Article Info
Kasetsart Journal of Social Sciences -- formerly Kasetsart Journal (Social Sciences), Volume 011, Issue 2, Jul 90 - Dec 90, Page 141 - 150 |  PDF |  Page