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1. Estimated effects of the Tax Cuts and Jobs Act of 2017 on private noncorporate forest landowners' timber income in the U.S. South

Author:
Li, Yanshu; Frey, Gregory E.; Wang, Linda
Source:
Forest policy and economics 2020 v.115 pp. 102118
ISSN:
1389-9341
Subject:
growers,   etc   ; economic impact; employment; forest management; forests; income; landowners; profitability; United States;     Show all 9 Subjects
Abstract:
... Financial effects of the Tax Cuts and Jobs Act of 2017 (TCJA) on private noncorporate timber growers vary due to the difference in timber holdings, level of non-timber income, and intensity of forest management. This commentary reports on a financial analysis, which suggests that landowners holding timber as investments as a group are moderately worse off due to the changes in itemized deductions ...
DOI:
10.1016/j.forpol.2020.102118

2. Organic cultivation and farm entrepreneurship: a case of small tea growers in rural Assam, India

Author:
Deka, Nabajyoti; Goswami, Kishor
Source:
Agroecology and sustainable food systems 2020 v.44 no.4 pp. 446-466
ISSN:
2168-3573
Subject:
growers,   etc   ; case studies; crop production; entrepreneurship; farms; financial economics; market access; organic production; tea; India;     Show all 10 Subjects
Abstract:
... A few small tea growers in Assam, India, shifted to organic production of tea considering the ecological and economic benefits of organic cultivation. However, lack of sufficient training, technical know-how, inadequate experience, and market access posed serious threats to sustaining their business. Amidst the difficulties, some of these growers managed to overcome the initial problems of the pro ...
DOI:
10.1080/21683565.2019.1646373

3. Performance of reflectance indices and of a handheld device for estimating in‐field the nitrogen status of grapevine leaves

Author:
Friedel, M.; Hendgen, M.; Stoll, M.; Löhnertz, O.
Source:
Australian journal of grape and wine research 2020 v.26 no.2 pp. 110-120
ISSN:
1322-7130
Subject:
growers,   etc   ; Vitis vinifera; chlorophyll; fluorescence; leaf reflectance; leaves; nitrogen; pigments; portable equipment; prediction; reflectance; temporal variation;     Show all 12 Subjects
Abstract:
... BACKGROUND AND AIMS: Optical leaf sensing of plant nitrogen (N) status enables fertilisation based on plant demand. The aim of this study was to assess the suitability of leaf reflectance indices and of a handheld device for the estimation of N and chlorophyll (Chl) in Vitis vinifera L. cv. Riesling. METHODS AND RESULTS: Riesling leaves from a long‐term fertilisation trial were analysed for nitrog ...
DOI:
10.1111/ajgw.12424

4. Coffee terroir: cupping description profiles and their impact upon prices in Central American coffees

Author:
Conley, Jamison; Wilson, Bradley
Source:
GeoJournal 2020 v.85 no.1 pp. 67-79
ISSN:
0343-2521
Subject:
growers,   etc   ; artificial intelligence; auctions; crop production; flavor; prices; taste; Central America;     Show all 8 Subjects
Abstract:
... We examine the gustatory properties and flavors of 742 coffees from the Cup of Excellence program in Central America to determine if there are distinct quality profiles for each of five coffee-growing countries, which can provide evidence of coffee terroir. We further compare these properties with the price of a coffee at auction to answer the following research questions: (1) Does the presence or ...
DOI:
10.1007/s10708-018-9949-1

5. Forest plantation development, poverty, and inequality in Laos: A dynamic CGE microsimulation analysis

Author:
Phimmavong, Somvang; Keenan, Rodney J.
Source:
Forest policy and economics 2020 v.111 pp. 102055
ISSN:
1389-9341
Subject:
growers,   etc   ; development policy; forest plantations; income distribution; industry; livelihood; models; poverty; Laos;     Show all 9 Subjects
Abstract:
... Lao People's Democratic Republic (hereafter Lao PDR or Laos) has implemented policies to expand plantations on the basis of their contribution to economic development, improvement of local livelihoods, poverty alleviation, developing linkages between the processing industry and smallholder growers, and improving environmental outcomes. Despite the significant inflow in foreign investment in forest ...
DOI:
10.1016/j.forpol.2019.102055

6. Identifying knowledge levels of aquaponics adopters

Author:
Greenfeld, Asael; Becker, Nir; Bornman, Janet F.; Angel, Dror L.
Source:
Environmental science and pollution research international 2020 v.27 no.4 pp. 4536-4540
ISSN:
0944-1344
Subject:
growers,   etc   ; aquaponics; business enterprises; ecosystem services; entrepreneurship; farming systems; fish; hydroponics; surveys; sustainable agriculture;     Show all 10 Subjects
Abstract:
... Aquaponics or the integration of aquaculture and hydroponic farming, is a sustainable food production system that is currently popular more as a hobby rather than on commercial scales. Recent increase in scientific and public interest in aquaponics and its environmental benefits supports research that addresses technical, economic, and legislative barriers to wider adoption of these systems. A suc ...
DOI:
10.1007/s11356-019-06758-8

7. Materials with switchable radiometric properties: Could they become the perfect greenhouse cover?

Author:
Baeza, Esteban; Hemming, Silke; Stanghellini, Cecilia
Source:
Biosystems engineering 2020 v.193 pp. 157-173
ISSN:
1537-5110
Subject:
growers,   etc   ; coatings; cooling; crop yield; environmental factors; greenhouses; heat; optical properties; radiometry; simulation models; solar radiation; tomatoes; tropics; winter;     Show all 14 Subjects
Abstract:
... Greenhouses shelter the crop from unfavourable environmental conditions and the covering largely contributes to creating beneficial growing conditions inside. There is no perfect greenhouse cover for all combinations of crop and climatic regions. Usually a greenhouse cover has permanent optical properties determining the amount of solar radiation entering the greenhouse. Consequently during crop g ...
DOI:
10.1016/j.biosystemseng.2020.02.012

8. Economic returns from the foliar fungicide application to control leaf rust in winter wheat cultivars in southwest of Iran (Khuzestan Province)

Author:
Hasanzadeh, Mostafa; Safaie, Naser; Eslahi, Mohammad Reza; Dadrezaei, Seyed Taha; Tabatabaei, Seyed Nosratollah
Source:
Journal of the Saudi Society of Agricultural Sciences 2020 v.19 no.3 pp. 199-206
ISSN:
1658-077X
Subject:
growers,   etc   ; costs and returns; cultivars; developmental stages; leaf rust; pesticide application; prices; propiconazole; spraying; winter wheat; Iran;     Show all 11 Subjects
Abstract:
... Leaf rust is responsible for most economically important wheat disease with yield losses. Growers usually use fungicides once or twice a year to control wheat leaf rust in Iran (Khuzestan Province). The purpose of the present study was to determine profit obtained from using propiconazole in five local winter wheat cultivars with different resistance level, including Chamran 2, Star, Ofogh, Kavir, ...
DOI:
10.1016/j.jssas.2018.09.005

9. Estimation of energy efficiency and greenhouse gas emission of cotton crop in South Punjab, Pakistan

Author:
Imran, Muhammad; Özçatalbaş, Orhan; Bashir, Muhammad Khalid
Source:
Journal of the Saudi Society of Agricultural Sciences 2020 v.19 no.3 pp. 216-224
ISSN:
1658-077X
Subject:
growers,   etc   ; agricultural industry; carbon dioxide; cotton; crop production; energy efficiency; farm inputs; farms; greenhouse gas emissions; greenhouse gases; Pakistan;     Show all 11 Subjects
Abstract:
... The agricultural sector is a consumer as well as a producer of energy. This study explores the relationship between energy consumption and greenhouse gas emission of cotton crop in Punjab province of Pakistan. Standard energy equivalents megajoules (MJ) were used to measure energy from different inputs and output, similarly, a standard unit kilogram of carbon dioxide equivalent (kg CO₂) was used t ...
DOI:
10.1016/j.jssas.2018.09.007

10. Spatiotemporal dynamics and modelling support the case for area‐wide management of citrus greasy spot in a Brazilian smallholder farming region

Author:
Laranjeira, Francisco F.; Silva, Suely X. B.; Murray‐Watson, Rachel E.; Soares, Ana C. F.; Santos‐Filho, Hermes P.; Cunniffe, Nik J.
Source:
Plant pathology 2020 v.69 no.3 pp. 467-483
ISSN:
0032-0862
Subject:
growers,   etc   ; Citrus; climatic factors; defoliation; disease control; disease incidence; groves; humidity; inoculum; leaves; models; small-scale farming; surveys; Brazil;     Show all 14 Subjects
Abstract:
... Citrus greasy spot (CGS), caused by Zasmidium citri, induces premature defoliation and yield loss in Citrus spp. The epidemiology of CGS is well understood in high humidity areas, but remains unaddressed in Brazil, despite differing climatic conditions and disease management practices. The spatiotemporal dynamics of CGS were characterized in the Recôncavo of Bahia (Brazil) at four hierarchical lev ...
DOI:
10.1111/ppa.13146

11. Nighttime Application of UV-C to Control Cucumber Powdery Mildew

Author:
Patel, Jaimin S.; Radetsky, Leora C.; Nagare, Rohan; Rea, Mark S.
Source:
Plant health progress 2020 v.21 no.1 pp. 40-46
ISSN:
1535-1025
Subject:
growers,   etc   ; Podosphaera xanthii; crops; cucumbers; disease severity; grapes; leaf area; light intensity; pathogens; powdery mildew; rosemary; strawberries; tomatoes; ultraviolet radiation;     Show all 14 Subjects
Abstract:
... Nonionizing, ultraviolet (UV) radiation is effective for mitigating powdery mildew associated with a variety of crops including strawberry, grapes, rosemary, tomato, rose, and cucumber. The effectiveness of UV radiation depends upon the dose (irradiance × duration), the frequency of dosing, the time of application, and the sensitivity of the crop to UV radiation. Reported here are the results of t ...
DOI:
10.1094/PHP-11-19-0081-RS

12. The Moderate Operation Scales of Apples Based on Output, Profit, and Unit Production Costs in the Shaanxi Province of China

Author:
Zhang, Congying; Chang, Qian; Shao, Liqun; Huo, Xuexi
Source:
Land 2020 v.9 no.1
ISSN:
2073-445X
Subject:
growers,   etc   ; apples; data analysis; data collection; fruit growing; fruit yield; models; production costs; profits and margins; surveys; China;     Show all 11 Subjects
Abstract:
... In the Shaanxi province, small and scattered plots impede an increase in the efficiency of apple production. Developing a moderate operation scale is a proper tool to solve inefficiencies in apple production, as it enables improving the factor allocation efficiency, resulting in higher yields, higher profit, or lower production costs. However, the moderate operation scales, based on output, profit ...
DOI:
10.3390/land9010025

13. Improved models of the effects of winter chilling on blackcurrant (Ribes nigrum L.) show cultivar specific sensitivity to warm winters

Author:
Preedy, Katharine; Brennan, Rex; Jones, Hamlyn; Gordon, Sandra
Source:
Agricultural and forest meteorology 2020 v.280 pp. 107777
ISSN:
0168-1923
Subject:
growers,   etc   ; Ribes nigrum; black currants; budbreak; chilling requirement; climate; cold; cold treatment; cultivars; models; perennials; spring; temperature; winter; United Kingdom;     Show all 15 Subjects
Abstract:
... Sufficient chilling in winter is essential for many perennial crops to start growing in spring and to produce good yields. Using blackcurrants as an example we have developed improved models which can help identify varieties resilient to the variable winters expected as the climate warms. Controlled temperature experiments were used to calibrate 3 proposed models of chilling accumulation requireme ...
DOI:
10.1016/j.agrformet.2019.107777

14. Governing evolution: A socioecological comparison of resistance management for insecticidal transgenic Bt crops among four countries

Author:
Carrière, Yves; Brown, Zachary S.; Downes, Sharon J.; Gujar, Govind; Epstein, Graham; Omoto, Celso; Storer, Nicholas P.; Mota-Sanchez, David; Søgaard Jørgensen, Peter; Carroll, Scott P.
Source:
Ambio 2020 v.49 no.1 pp. 1-16
ISSN:
0044-7447
Subject:
growers,   etc   ; Bacillus thuringiensis; collaborative management; compliance; crops; governance; monitoring; pests; resistance management; risk; transgenic plants; Australia; Brazil; India; United States;     Show all 15 Subjects
Abstract:
... Cooperative management of pest susceptibility to transgenic Bacillus thuringiensis (Bt) crops is pursued worldwide in a variety of forms and to varying degrees of success depending on context. We examine this context using a comparative socioecological analysis of resistance management in Australia, Brazil, India, and the United States. We find that a shared understanding of resistance risks among ...
DOI:
10.1007/s13280-019-01167-0
PubMed:
30903512
PubMed Central:
PMC6889122

15. Adaptive large neighborhood search for scheduling sugarcane inbound logistics equipment and machinery under a sharing infield resource system

Author:
Pitakaso, Rapeepan; Sethanan, Kanchana
Source:
Computers and electronics in agriculture 2019 v.158 pp. 313-325
ISSN:
0168-1699
Subject:
growers,   etc   ; equipment; probability; sugarcane;     Show all 4 Subjects
Abstract:
... This paper presents the ALNS metaheuristics, employing the idea of DE to solve the mechanical harvester assignment and routing problem with time windows (HARPTW) to maximize the total area serviced by a mechanical harvester under a sharing infield resource system. The effective ALNS is designed to solve large-scale problems integrating the mechanical harvester assignment problem (HAP) and the mech ...
DOI:
10.1016/j.compag.2019.02.001

16. The role of contracts in the adoption of irrigation by Brazilian orange growers

Author:
Rossi, Fabiana Ribeiro; Filho, Hildo Meirelles de Souza; Miranda, Bruno Varella; Carrer, Marcelo José
Source:
Agricultural water management 2020 v.233 pp. 106078
ISSN:
0378-3774
Subject:
growers,   etc   ; empirical research; farms; fruit growing; income; irrigation systems; issues and policy; juices; orchards; probit analysis; production functions; statistical models; Brazil;     Show all 13 Subjects
Abstract:
... This article analyses the drivers of adoption of irrigation systems by orange growers in the State of São Paulo, Brazil. Given the scarcity of similar studies focusing on the Brazilian orange sector, the starting point of our article is the estimation of a translog production function to assess the impact of irrigation on the production of a sample of 98 São Paulo’s orange growers. The results sho ...
DOI:
10.1016/j.agwat.2020.106078

17. Assessment of DNA damage and cholinesterase activity in soybean farmers in southern Brazil: High versus low pesticide exposure

Author:
Bernieri, Tanandra; Moraes, Melina Floriano; Ardenghi, Patrícia Grolli; Basso da Silva, Luciano
Source:
Journal of environmental science and health 2020 v.55 no.4 pp. 355-360
ISSN:
1532-4109
Subject:
growers,   etc   ; DNA damage; blood plasma; cholinesterase; cholinesterase inhibitors; comet assay; enzyme activity; enzyme inhibition; exposure duration; mutagens; pesticides; safety equipment; soybeans; Brazil;     Show all 14 Subjects
Abstract:
... The aim of this study was to evaluate the DNA damage in soybean growers during two agricultural periods of a crop season (high and low exposure) and a control group, as well as butyrylcholinesterase (BChE) activity during these exposure periods in order to estimate the degree of BChE inhibition for the exposed group. DNA damage in peripheral whole blood was evaluated by the comet assay and plasma ...
DOI:
10.1080/03601234.2019.1704608

18. Predicting climate change mitigation and adaptation behaviors in agricultural production: A comparison of the theory of planned behavior and the Value-Belief-Norm Theory

Author:
Zhang, Lu; Ruiz-Menjivar, Jorge; Luo, Biliang; Liang, Zhihui; Swisher, Mickie E.
Source:
Journal of environmental psychology 2020 v.68 pp. 101408
ISSN:
0272-4944
Subject:
growers,   etc   ; altruism; behavior change; climate change; crop production; farmers' attitudes; food security; issues and policy; least squares; prediction; psychology; rice; structural equation modeling; China;     Show all 14 Subjects
Abstract:
... This study compares the predictive power of the Theory of Planned Behavior (TPB) and the Value-Belief-Norm (VBN) theory in the context of climate change mitigation and adaptation behaviors in agricultural rice production. Data were collected from 1538 rice farmers in the province of Hubei, China. We empirically examine the determinants of rice growers' intentions towards mitigation and adaption an ...
DOI:
10.1016/j.jenvp.2020.101408

19. Weed control through allelopathic crop water extracts and S-metolachlor in cotton

Author:
Iqbal, Nadeem; Khaliq, Abdul; Cheema, Zahid Ata
Source:
Information processing in agriculture 2020 v.7 no.1 pp. 165-172
ISSN:
2214-3173
Subject:
growers,   etc   ; Brassica; Cyperus rotundus; Helianthus annuus; Trianthema portulacastrum; biomass; cotton; crop yield; ecosystems; field experimentation; herbicide-resistant weeds; metolachlor; pesticide application; weed control;     Show all 14 Subjects
Abstract:
... Weeds are one of the most important biological constraint to cotton production, and resulting in a yield losses of up to 90%. The evolution of hundreds of resistant weed species, the lack of new herbicide chemistries, and the increase in weed management costs are all making weed management more arduous for the growers. Hence, a field experiment was conducted to investigate the efficacy of allelopa ...
DOI:
10.1016/j.inpa.2019.03.006

20. First Report of Bacterial Spot Caused by Xanthomonas arboricola pv. pruni on Almond in Hungary

Author:
Kolozsváriné Nagy, Judit; Bozsó, Zoltán; Szatmári, Ágnes; Süle, Sándor; Szabó, Zoltán; Király, Lóránt; Schwarczinger, Ildikó
Source:
Plant disease 2020 v.104 no.2 pp. 562
ISSN:
0191-2917
Subject:
growers,   etc   ; Prunus salicina; Xanthomonas arboricola pv. pruni; almonds; apricots; bioassays; crop production; fruits; genes; leaf spot; leaves; orchards; pathogenicity; pathogens; peaches; plant protection; surveys; Hungary;     Show all 18 Subjects
Abstract:
... In June 2018, leaf spot symptoms suggesting Xanthomonas arboricola pv. pruni (Xap) infection were detected on almond (Prunus dulcis) cultivar ‘Fournat de Brezenaud’ and in October also on almond cultivars ‘Tétényi bőtermő’, ‘Tétényi rekord’, and ‘Tétényi kedvenc’ in a 1.5-ha almond orchard within a 44-ha stone fruit plantation in Pest county, Hungary. Disease incidence was low (<5%) in June and hi ...
DOI:
10.1094/PDIS-07-19-1343-PDN