SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Sakthivadivel, Ramasamy; Thiruvengadachari, S.; Amarasinghe, Upali A..

Evaluates the performance of the Bhadra Reservoir Project-before, during, and after the introduction of modernization with structured system design. Analysis focuses on water management, agricultural productivity, and farmer participation and perception. Identifies the absence of a continuing support mechanism and lack of farmer participation as the major causes for the project's decline.

Tipo: Report

Palavras-chave: Performance evaluation; Irrigation programs; Modernization; Participatory management; Farmer participation; Farmer-agency interactions; Farmers' attitudes; Remote sensing; Rice; Irrigated farming; Water distribution; Water supply; Productivity; India; Bhadra Project; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Productivity Analysis; Teaching/Communication/Extension/Profession.

Ano: 1999

URL: http://purl.umn.edu/61104

SPATIAL PATTERNS OF CROP YIELDS IN LATIN AMERICA AND THE CARIBBEAN

Wood, Stanley; You, Liangzhi; Zhang, Xiaobo.

From a theoretical perspective crop yields should tend to converge over time and space as: growth in yield potential exhibits diminishing returns; an increasing share of farmers shift to using high yielding varieties (HYVs); barriers to the free flow of knowledge and information are removed; and significant investments continue to be made in supporting institutions whose mandates include facilitating and accelerating the cross-border flow of improved agricultural technologies. Using a new, sub-national crop yield database for Latin America and the Caribbean (LAC) we examine whether convergence is indeed occurring, and discover it is not. On the contrary, there is evidence of divergence. We test three hypotheses that might help account for this finding:...

Tipo: Working or Discussion Paper

Palavras-chave: Crop yields; Maize; Rice; Soybeans; Latin America; Caribbean; South America; Crop Production/Industries.

Ano: 2004

URL: http://purl.umn.edu/60322

COMPARATIVE ANALYSIS OF THE IMPACT OF LABOR OUT MIGRATION AND REMITTANCES ON INCOME AND RICE PRODUCTIVITY IN THE PHILIPPINES, THAILAND AND VIETNAM

Paris, Thelma R.; Rola-Rubzen, Maria Fay; Luis, Joyce; Thi Ngoc Chi, Truong; Wongsanum, Chaicharn; Villanueva, Donald.

Out migration from rural areas is increasingly becoming a strategy to get out of poverty. While rice–based agriculture remains to be the backbone in Southeast Asia, majority of the farming households particularly those who produce rice under rainfed conditions remain poor and insecure. This paper examines the relationship between migration and other socio-economic factors on household income using data from 1,874 rice sample farming households in Vietnam (north and south), Thailand (northeast) and Philippines (Luzon island). In the Philippines, remittances contribute about 60 per cent of household income of recipient families. In Thailand and Vietnam, of the total household income, about 40 per cent are from remittances. International migration is most...

Tipo: Conference Paper or Presentation

Palavras-chave: Migration; Remittances; Income; Rice; Farming systems.

Ano: 2009

URL: http://purl.umn.edu/48165

THE RESPONSIVENESS OF U.S. RICE ACREAGE TO PRICE AND PRODUCTION COSTS

Rice Price Fluctuation and an Approach to Price Stabilization in Bangladesh

Salassi, Michael E..

Ordinary least squares and seemingly unrelated regression procedures were used to analyze the impacts of changes in rice prices and production costs on U.S. rice planted acreage. National and regional response models were estimated over the 1970-92 period. Supply-inducing prices of rice were estimated as a function of effective rice support prices and seasonal average market prices. Expected production costs per acre were estimated using lagged actual total variable cash production expenses per acre adjusted by the previous 3-year average annual change in variable expenses. Estimated short-run price and production cost elasticities were found to be inelastic at the national level. However, the magnitude of the production cost elasticities were found to be...

Tipo: Journal Article

Palavras-chave: Rice; Acreage response function; Price elasticity; Crop Production/Industries.

Ano: 1995

URL: http://purl.umn.edu/15284

Raisuddin, Ahmed; Bernard, Andrew.

Correction of the distorted structure of related prices and prevention of wide fluctuations in the level of commodity prices constitute twin challenges in agricultural price policies. While macroeconomic instruments are comprehensive sectoral analysis of prices relations, stock requirements, market integration, and various other factors that destabilize supply and demand. IFPRI’s initial analyses of price stabilization were limited to the issue of optimal stock of foodgrains. Thomas Pinckney’s work on stock policies in Kenya and Pakistan and Raj Krishna and Ajay Chhibber’s research on India have demonstrated how optimal stock policies can save scarce public resources so urgently required for economic development. This research by Ahmed and Andrew Bernard...

Tipo: Report

Palavras-chave: Rice; Prices; Bangladesh; Government policy; Crop Production/Industries; Demand and Price Analysis.

Ano: 1989

URL: http://purl.umn.edu/42170

Asian Rice Policies and WTO Commitments on Domestic Support Under Existing and Proposed Doha Round Provisions

Yang, Min-Hsien; Blandford, David.

We examine current rice policies in four major Asian countries (China, Japan, Korea, and Taiwan), their relationship to current WTO disciplines, and to those proposed under the Doha negotiations. WTO disciplines have prompted some changes in rice policies, but disciplines of domestic support are unlikely to impose serious constraints in the future. Using the example of Taiwan, we examine how existing support policies could be changed to reduce domestic distortions and satisfy WTO commitments. Changing from existing amber box payments to those that would likely qualify for inclusion under the blue or green boxes could allow greater market orientation in Taiwan’s rice market, while satisfying food security and farm income support objectives.

Tipo: Conference Paper or Presentation

Palavras-chave: Domestic support; Rice; WTO; Taiwan; Asia; Agricultural and Food Policy; Food Security and Poverty; International Relations/Trade.

Ano: 2011

URL: http://purl.umn.edu/103665

Improved drying of high moisture grains

Assessing the Impacts of Soil Carbon Credits and Risk on No-Till Rice Profitability

McLeod, Ross.

An economic evaluation of three ACIAR projects whose primary objective was to improve postharvest grain drying in Thailand and Australia is provided in this report. During 1983–1996, ACIAR invested A$1.2 million in research designed to improve grain drying in these countries. Based on current adoption, the investment has resulted in a realised net present value of A$3.6 million. A benefit–cost ratio of 3:1 was estimated for the projects. In other words, for each dollar invested, three dollars of project benefits have resulted. A high proportion of realised benefits was estimated to accrue to Australian rice producers, through reduced grain drying costs, while benefits have also been captured by the Thai rice production industry through reduced postharvest...

Tipo: Book

Palavras-chave: Economic evaluation; Australia; Thailand; Postharvest grain drying; Rice; Net present value; Benefit-cost ratio; High impact; Benefits; Grain drying; Agribusiness; Crop Production/Industries; Farm Management; Food Security and Poverty; International Development; Production Economics.

Ano: 1999

URL: http://purl.umn.edu/47692

Watkins, K. Bradley; Hignight, Jeffrey A.; Anders, Merle M..

Rice is a major cash crop in eastern Arkansas, but most rice acres are intensively cultivated and grown on rented land. No-till is an effective means of sequestering soil carbon and reducing greenhouse gas emissions, and economic incentives exist for no-till in the form of carbon credits. Studies evaluating the economic potential of carbon credits focus on producers only and do not take into consideration the landlord’s perspective. This analysis evaluates the profitability and risk efficiency of no-till management and carbon credits in Arkansas rice production from the prospective if the landlord using simulation and stochastic efficiency with respect to a function (SERF). The results indicate carbon credits may have potential to enhance preference for...

Tipo: Conference Paper or Presentation

Palavras-chave: Certainty equivalent; Landlord; No-till; Rice; Risk premium; Farm Management; Production Economics; Risk and Uncertainty.

Ano: 2008

URL: http://purl.umn.edu/45806

Enhancing Farm Profitability through Portfolio Analysis: The Case of Spatial Rice Variety Selection

Nalley, Lawton Lanier; Barkely, Andrew; Watkins, Brad; Hignight, Jeffrey A..

This study applies portfolio theory to rice varietal selection decisions to find profit maximizing and risk minimizing outcomes. Results based on data from six counties in the Arkansas Delta for the period 1999–2006 suggest that sowing a portfolio of rice varieties could have increased profits from 3 to 26% (depending on the location) for rice producers in the Arkansas Delta. The major implication of this research is that data and statistical tools are available for rice producers to improve the choice of rice varieties to plant each year in specific locations. Specifically, there are large potential gains from combining varieties that are characterized by inverse yield responses to growing conditions such as drought, pest infestation, or the presence of a...

Tipo: Journal Article

Palavras-chave: Optimal variety selection; Portfolio analysis; Rice; Agribusiness; Crop Production/Industries; Farm Management; Production Economics; Productivity Analysis; Risk and Uncertainty; G11; Q15; Q12.

Ano: 2009

URL: http://purl.umn.edu/56650

Priority Setting for Public-Sector Agricultural Research in Mozambique with the National Agricultural Survey Data

Walker, Thomas S.; Pitoro, Raul; Tomo, Alda; Sitoe, Isabel; Salencia, Celestino; Mahanzule, Rosalina; Donovan, Cynthia; Mazuze, Feliciano M..

Institute of Agricultural Research of Mozambique; Directorate of Training, Documentation, and Technology Transfer

Tipo: Working or Discussion Paper

Palavras-chave: Food security; Food policy; Priority setting; Mozambique; Rice; Research and Development/Tech Change/Emerging Technologies; Q18.

Ano: 2006

URL: http://purl.umn.edu/56113

Ecotoxicology of Pig Slaughterhouse Waste Using Lactuca sativa L., Raphanus sativus L., and Oryza sativa L.

Rev. Bras. Ciênc. Solo

Ramires,Maiara Figueiredo; Souza,Eduardo Lorensi de; Fontanive,Daniel Erison; Bianchetto,Renan; Krynski,Ângelo Munaretto; Cezimbra,Júlio Cesar Grasel; Antoniolli,Zaida Inês.

ABSTRACT Pork is the most consumed animal protein around the world. The production levels are significant, which results in the generation of large amounts of slaughter waste. Such waste is often disposed of improperly in agricultural areas, causing environmental imbalance by the contamination of soil and water sources with metals and pathogenic organisms. This study evaluates the phytotoxic effects of pig slaughterhouse waste in natura and after stabilization processes on lettuce (Lactuca sativa Linnaeus, 1753), radish (Raphanus sativus Linnaeus, 1753), and rice (Oryza sativa Linnaeus, 1753), in addition to shoot nutrient contents. To do this, the waste was evaluated through phytotoxicity tests on lettuce, radish, and rice plants in natura (PSWin) as well...

Occurrence of plant growth-promoting traits in clover-nodulating rhizobia strains isolated from different soils in Rio Grande do Sul state

Palavras-chave: Pig farming; Phytotoxicity; Lettuce; Radish; Rice.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100521

Rev. Bras. Ciênc. Solo

Vargas,Luciano Kayser; Lisboa,Bruno Brito; Schlindwein,Gilson; Granada,Camille Eichelberger; Giongo,Adriana; Beneduzi,Anelise; Passaglia,Luciane Maria Pereira.

In the last decades, the use of plant growth-promoting rhizobacteria has become an alternative to improve crop production. Rhizobium leguminosarum biovar trifolii is one of the most promising rhizobacteria and is even used with non-legume plants. This study investigated in vitro the occurrence of plant growth-promoting characteristics in several indigenous R. leguminosarum biovar trifolii isolated from soils in the State of Rio Grande do Sul, Brazil. Isolates were obtained at 11 locations and evaluated for indoleacetic acid and siderophore production and inorganic phosphate solubilization. Ten isolates were also molecularly characterized and tested for antagonism against a phytopathogenic fungus and for plant growth promotion of rice seedlings. Of a total...

First records of Glyphepomis adroguensis (Hemiptera, Pentatomidae) and its parasitoid, Telenomus podisi (Hymenoptera, Platygastridae), on irrigated rice fields in Rio Grande do Sul, Brazil

Palavras-chave: Rhizobacteria; Siderophore; Indoleacetic acid; Phosphate solubilization; Antagonism; Rice.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000500016

Rev. Bras. entomol.

Farias,Patrícia Menegaz de; Klein,Joana Tartari; Sant'Ana,Josué; Redaelli,Luiza Rodrigues; Grazia,Jocélia.

First records of Glyphepomis adroguensis (Hemiptera, Pentatomidae) and its parasitoid, Telenomus podisi (Hymenoptera, Platygastridae), on rice fields in Rio Grande do Sul, Brazil. Eggs, nymphs, and adults of Glyphepomis adroguensis Berg, 1891 (Hemiptera, Pentatomidae) were observed for the first time on rice fields (Oryza sativa L.) in Charqueadas (29º59'S, 51º31'W) and Eldorado do Sul (30º02'S, 51º23'W) of Rio Grande do Sul state, Brazil. Telenomus podisi Ashmead, 1893 (Hymenoptera, Platygastridae) was found in G. adroguensis eggs.

Phytoremediation of lowland soil contaminated with a formulated mixture of Imazethapyr and Imazapic1

Palavras-chave: Egg parasitoids; Rice; Stink bug.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000300019

Rev. Ciênc. Agron.

Souto,Kelen Müller; Avila,Luis Antonio de; Cassol,Guilherme Vestena; Machado,Sérgio Luiz de Oliveira; Marchesan,Enio.

The use of plants to decontaminate water and soil contaminated with both organic and inorganic pollutants is a promising technology for sustainable agriculture. The aim of this work was to evaluate the efficiency of plant species in the remediation of formulated mixtures of imazethapyr and imazapic, using the irrigated rice cultivar IRGA 417 as bioindicator. The treatments consisted of the combination of 13 plant species with seven rates of a formulated mixture of imazethapyr and Imazapic (75+25 g e.a. L-1 respectively): 0, 200, 300, 400, 500, 1000 and 4000 mL ha-1. To evaluate the potential for phytoremediation in these species, symptoms of injury and plant height were measured in rice plants at 7, 14, 21 and 28 days after emergence and shoot dry weight...

การต้านทานสารเคมี propiconazole ของเชื้อรา Bipolaris oryzae สาเหตุโรคใบจุดสีน้ำตาลในพื้นที่เขตภาคกลาง

Palavras-chave: Rice; Phytoremediation; Soil decontamination.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100185

Sith Jaisong; Rasamee Dhitikiattipong; Witchuda Rattanakarn; Wanporn Khemmuk; Kanuengnij Srivilai.

Tipo: PhysicalObject

Palavras-chave: Bipolaris oryzae; Fungicide resistance; Rice brown spot; Propiconazole; Rice; Bipolaris oryzae; การต้านทานสารเคมี; โรคใบจุดสีน้ำตาล; Propiconazole.

Ano: 2012

URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5436

Utilization of broken rice for glucose syrup and high protein rice flour production

ความเป็นไปได้ของการใช้สารปรับปรุงดินเพื่อลดก๊าซเรือนกระจกและขณะเดียวกันรักษาผลผลิตข้าว: รายงานการวิจัยฉบับสมบูรณ์

Keawsompong, S.; Laohapattanalert, K.; Piyachomkwan, K.; Chotineeranat, S.; Sriroth, K..

Palavras-chave: Rice.

Ano: 2004

URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4755

Patcharee Saenjan; Daungsamorn Tulapithak; Kasuyuki Inbuchi.

Field experiment was conducted in farmer’s rice field with loamy soil in Khon Kaen province, northeast of Thailand during to study the effect of different levels of sulfate (SO42-) on methane emission and rice yield. SO42- was applied at the rate of 0, 50, 100, and 210 kg SO42- ha-1 by using ammonium phosphate (42% SO42-) with balanced amount of 80 kg N, 100 kg P2O5 and 80 kg K2O ha-1 by adding various fertilizers. The experiment was laid out in randomized completely block design (RCBD) with tripled replication. CH4 flux was measured every week by using closed chambers method. Global warming potential (GWP) was also calculated. Soil samples were collage at each growth stage to determine SO42-, NH4+ and Fe2+. Rice yield was measured at harvest. The...

Tipo: PhysicalObject

Palavras-chave: Rice; Paddy soil; Rice production; Rice yield; Sulfate; Global warming potential; GWP; Methane; Feasible soil; Greenhouse gas emission; ข้าว; ดินนา; การผลิตข้าว; ภาวะโลกร้อน; ก๊าซมีเทน; ก๊าซเรือนกระจก; การปลดปล่อยก๊าซมีเทน; สารปรับปรุงดิน; ปุ๋ยซัลเฟต; การลดปริมาณก๊าซมีเทน; จ.ขอนแก่น.

Ano: 2011

URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5715

การชะลอการเสื่อมคุณภาพของเมล็ดพันธุ์โดยการจัดการแมลงศัตรูในโรงเก็บ

Pornpun Yanaso; Apichart Lawanprasert; Porntip Thawong.

Storage pests are one of the main causes of the seed quality deterioration. Thus, the aim of this research was to study the efficacy of phosphine fumigant in combination with plant pesticide powder to protect the rice seed from storage pests. The experiment was conducted at Pranakorn Si Ayutthaya Rice Research Center with 3 periods. The 1st period was during February to June, 2012. Sampling was kept with four replications to obtained amount and type of storage pests. The results showed that in 250 grams seed weight there were 4 storage pests in Lesser grain borer, Angoumois grain moth, Red flour beetle and Rice weevil with average amount were 66.8, 4.4, 1.2 and 0.5 respectively. The 2nd period was during August, 2012 to February, 2013 study on Suphan Buri...

Tipo: PhysicalObject

Palavras-chave: Rice; Seed; Storage pest; Phosphine fumigant; Pesticide; ข้าว; เมล็ดพันธุ์; แมลงศัตรูในโรงเก็บ; สารรมฟอสฟีน; สารกำจัดศัตรูพืช.

Ano: 2014

URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5647

การติดตามความต้านทานต่อสารเคมีป้องกันกำจัดแมลงของเพลี้ยกระโดดสีน้ำตาลในภาคตะวันออกเฉียงเหนือของไทย

Sukanya Arunmit; Wantana Sriratanasak; Jintana Chaiwong; Urassaya Boonpramook.

Brown planthopper (BPH), Nilaparvata lugens (Stål), is a major insect pest of rice in Thailand.Because of their ability to adapt to host plant and environment, the BPH becomes an extremely destructive pest and difficult to control. The purpose of this research is to monitor the insecticide resistance of BPH in North Eastern (NE) Thailand. The BPH populations were collected from the outbreak areas in 9provinces during 2011 to 2012. The toxicity (LD50) of 10 insecticides was conducted using Topical bioassay method. The results showed that the BPH populations from 7 provinces were resistant to ethiprole and isoprocarb. The NongBua Lam Phu population was the widest spectrum of resistance to the tested insecticides,whereas, the BPH population from Sisaket was...

Tipo: PhysicalObject

Palavras-chave: Rice; BHP; Insecticide resistance; Toxicity level; LD50; North eastern; Thailand; ข้าว; เพลี้ยกระโดดสีน้ำตาล; ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง; ระดับความเป็นพิษ; LD50; ภาคตะวันออกเฉียงเหนือ; ประเทศไทย.

Ano: 2014

URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5627

การทดสอบเสถียรภาพผลผลิตของข้าวสายพันธุ์ดีเด่นในสภาพแวดล้อมต่างกัน l. ศูนย์วิจัยข้าวปทุมธานี