Strawberry cultivar performance in high tunnels under sustainable and organic production practices in three climatic regions of Arkansas

2017 ◽  
pp. 549-554 ◽  
Author(s):  
M.E. Garcia ◽  
T. Ernst ◽  
D.T. Johnson ◽  
D.A. Dickey
Keyword(s):  
Organic Production ◽  
Climatic Regions ◽  
High Tunnels ◽  
Strawberry Cultivar ◽  
Production Practices

scholarly journals Microbiological evaluation of lettuce produced by conventional and organic systems in farms of Londrina, PR

2017 ◽  
Vol 38 (1) ◽  
pp. 175 ◽  
Author(s):  
Natalia Harumi Niguma ◽  
Jacinta Sanchez Pelayo ◽  
Tereza Cristina Rocha Moreira de Oliveira
Keyword(s):  
Irrigation Water ◽  
Water Samples ◽  
Total Coliform ◽  
Organic Production ◽  
Conventional System ◽  
Salmonella Spp ◽  
Organic System ◽  
E Coli ◽  
Organic Systems ◽  
Production Practices

The aims of this study were to evaluate the contamination of lettuce (Lactuca sativa), produced in Londrina, Paraná (PR), with total coliform, coliform at 45 °C, E. coli, and Salmonella spp.; and to determine the E. coli contamination of irrigation water used at the farms studied. Four farms were evaluated, of which three produced lettuce using a conventional system and one using an organic system. An evaluation of the production practices of the farms was also carried out. A total of 111 samples were analyzed, 71 lettuce samples from the conventional system and 40 samples from the organic system. A total of eight irrigation water samples were collected for analysis. Coliform at 45 °C counts above the limit tolerated by Brazilian legislation were observed in 2.8% (2/71) of conventionally grown lettuce samples, and Salmonella spp. was isolated in 1.4% (1/71) of those samples. In the organic lettuce samples, 12.5% (5/40) had coliform at 45 °C counts above the limit tolerated and Salmonella spp. was not detected. Irrigation water samples from three farms were unsatisfactory, with counts higher than 102MPN of E. coli per 100mL. The results of this study demonstrate that most conventionally grown lettuce samples show good sanitary conditions in production, and that lettuce contamination is not related to contamination found in irrigation water samples. The results also showed that the organic production practices required by Brazilian certification agencies should be applied to ensure that contamination of produced lettuce remains controlled.

Assessing heat management practices in high tunnels to improve organic production of bell peppers

2019 ◽  
Vol 246 ◽  
pp. 928-941 ◽  
Author(s):  
M.Z. Zheng ◽  
B. Leib ◽  
D.M. Butler ◽  
W. Wright ◽  
P. Ayers ◽  
...  
Keyword(s):  
Management Practices ◽  
Organic Production ◽  
Heat Management ◽  
High Tunnels ◽  
Bell Peppers

High tunnels without anti-insect netting benefit organic cherry tomato production in regions with cool and short growing seasons

2020 ◽  
Vol 100 (4) ◽  
pp. 401-414
Author(s):  
Yun Kong ◽  
David Llewellyn ◽  
Youbin Zheng
Keyword(s):  
Plant Growth ◽  
Organic Production ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Cherry Tomato ◽  
Southern Ontario ◽  
High Tunnels ◽  
Solids Content ◽  
Cherry Tomatoes

The potential market for locally produced organic cherry tomatoes (Solanum lycopersicum var. cerasiforme) is large in Canada, but it is challenging to grow this warm-season crop in open fields (OFs) due to the cool and short growing season. To test the feasibility of using high tunnels (HTs) for improving organic production in southern Ontario, plant growth, fruit yield and quality, and pest and disease incidence were compared for ‘Sarina hybrid’ cherry tomato among three production systems: OF, HT, and high tunnel with anti-insect netting (HTN) in Guelph, ON, in 2015 and 2016. Averaged over the 2 yr, the highest marketable fruit yield was achieved in HT (≈70 t ha−1), followed by HTN (≈50 t ha−1), with the lowest yield obtained in OF (≈24 t ha−1). Compared with OF, increased plant growth, extended harvest period, reduced pest numbers, and increased proportion of marketable fruits all led to the higher marketable yields in HT and HTN. Under HT vs. OF, fruit quality attributes, such as soluble solids content and post-harvest water loss, were better in 2015 and similar in 2016. Although the insect netting reduced pest incidence and disease infection, fruits harvested from HTN had lower yield, smaller size, and lower soluble solids content than those from HT in both years. Therefore, HT can be recommended for organic production of cherry tomatoes in southern Ontario.

scholarly journals Broad Mite on Primocane-fruiting Blackberry in Organic Production in Arkansas

2010 ◽  
Vol 20 (4) ◽  
pp. 718-723 ◽  
Author(s):  
Christopher I. Vincent ◽  
M. Elena García ◽  
Donn T. Johnson ◽  
Curt R. Rom
Keyword(s):  
Leaf Area ◽  
Organic Production ◽  
Temperate Climate ◽  
Trichome Density ◽  
Ambient Conditions ◽  
Polyphagotarsonemus Latus ◽  
High Tunnels ◽  
Broad Mite ◽  
Spring Harvest ◽  
Genotype Effects

The broad mite (Polyphagotarsonemus latus) was found in association with leaf-curling symptoms on primocane-fruiting blackberry (Rubus rubus) in Arkansas in 2007–2009. Broad mite had not been previously reported on blackberry. The plots sampled in this study were part of a study comparing harvesting in the fall versus harvest in spring and fall, high tunnels versus ambient conditions, and three genotypes, all under organic production. Leaves were sampled, broad mites per leaf counted, and leaf area and trichome density measured. Results indicated that broad mite is capable of overwintering in a moderate temperate climate and that it reduces leaf area of primocane-fruiting blackberry. The fall-only harvest system had fewer broad mites than fall and spring harvest. There were a range of genotype effects on broad mite populations, including one genotype, ‘Prime-Jan®’, on which broad mite populations remained low, and one genotype, APF-46, on which mite populations grew significantly. Observations indicate that the broad mite may be a pest of ‘Prime-Ark® 45’, another primocane-fruiting cultivar.

scholarly journals Sustainable agriculture through organic farming in India

2021 ◽  
Vol 17 (2) ◽  
pp. 299-304
Author(s):  
Rajkaranbir Singh
Keyword(s):  
Organic Farming ◽  
Value Chain ◽  
Agricultural Land ◽  
Organic Food ◽  
Organic Production ◽  
Export Market ◽  
Chemical Fertilizers ◽  
Climatic Regions ◽  
North East ◽  
Organic Products

Organic products are grown under a system of agriculture without the use of chemical fertilizers and pesticides with an environmentally and socially responsible approach. Organic agriculture is developing rapidly and today 186 countries produce organic food commercially. Currently, only 1.5 percent of the world’s agricultural land is farmed organically. The status of organic farming in India is bestowed with lot of potential to produce all varieties of organic products due to its various agro climatic regions. In several parts of the country, the inherited tradition of organic farming is an added advantage. This holds promise for the organic producers to tap the market which is growing steadily in the domestic market related to the export market. India ranks 9th in terms of World’s organic agricultural land and 1st in terms of total number of producers. The popularity of organic food is growing dramatically as consumer seeks the organic foods that are thought to be healthier and safer. As per the Ministry of Agriculture and Farmers’ Welfare (MoAFW), 2.78 million ha was covered under organic farming in India which is about 2 per cent of the 140.1 million ha net sown area in the country. Of this, 1.94 million ha (70%) area is under National Project on Organic Farming NPOP, 0.59 million ha (21.5%) under Paramparagat Krishi Vikas Yojana (PKVY), 0.07 million ha (2.6 %) under Mission Organic Value Chain Development for North East Region (MOVCDNER) and 0.17 million ha (6.1% ) under state schemes or non-schemes. The certified organic production for all crop categories stood at 2.6 million metric tons.in 2018-19. Sugar crops (sugarcane), oilseeds, cereals and millets, fiber crops, pulses, medicinal, herbal and aromatic plants, and spices/condiments are the highest produced organic commodities in India. However, the Indian organic food industry is curtailed by multiple challenges including reduced farm production per hectare, a general apprehension among farmers to forego the use of chemical fertilizers and pesticides and higher storage and transportation costs due to the lack of preservatives required for long-term storage. The states should step up their action in a concerted way to promote organic and natural farming. States can play an instrumental role in helping farmers sell their organic and natural produce by developing organic value chains, procuring organic produce and helping farmers get remunerative prices.

scholarly journals Lettuce Yield and Quality When Grown in High Tunnel and Open-Field Production Systems Under Three Diverse Climates

2012 ◽  
Vol 22 (5) ◽  
pp. 659-668 ◽  
Author(s):  
Russell W. Wallace ◽  
Annette L. Wszelaki ◽  
Carol A. Miles ◽  
Jeremy S. Cowan ◽  
Jeffrey Martin ◽  
...  
Keyword(s):  
Open Field ◽  
Production Systems ◽  
Organic Production ◽  
High Tunnel ◽  
Mount Vernon ◽  
Yield And Quality ◽  
High Tunnels ◽  
Lettuce Yield ◽  
Field Plots ◽  
Field Production

Field studies were conducted during 2010 and 2011 in Knoxville, TN; Lubbock, TX; and Mount Vernon, WA; to compare high tunnel and open-field organic production systems for season extension and adverse climate protection on lettuce (Lactuca sativa) yield and quality. The climates of these locations are diverse and can be typified as hot and humid (Knoxville), hot and dry (Lubbock), and cool and humid (Mount Vernon). In both years, 6-week-old lettuce seedlings of ‘New Red Fire’ and ‘Green Star’ (leafy type), ‘Adriana’ and ‘Ermosa’ (butterhead type), and ‘Coastal Star’ and ‘Jericho’ (romaine type) were transplanted in the late winter or early spring into subplots covered with black plastic and grown to maturity (43 to 65 days). Lettuce harvest in Knoxville occurred at 50 to 62 days after transplanting (DAT), with open-field lettuce harvested an average of 9 days earlier compared with high tunnel plots both years (P > 0.0001). The earlier than anticipated harvests in the open-field in Knoxville in 2010 were due to lettuce bolting. In Lubbock, high tunnel lettuce was harvested an average 16 days earlier in 2010 compared with open-field lettuce (P > 0.0001), while in 2011, high temperatures and bolting required that open-field lettuce be harvested 4 days earlier than lettuce grown in high tunnels. On average, lettuce cultivars at Mount Vernon matured and were harvested 56 to 61 DAT in 2010 and 54 to 64 DAT in 2011 with no significant differences between high tunnel and open-field production systems. Total and marketable yields at Mount Vernon and Lubbock averaged across cultivars were comparable in both high tunnel and open-field plots. At Knoxville, although total yields were significantly higher (P > 0.0062) in high tunnels than open-field plots, incidence of insect, disease, and physiological damage in high tunnel plots reduced lettuce quality and marketable yield (P > 0.0002). Lettuce head length:diameter ratio (LDR) averaged across cultivars was equal between high tunnel and the open field at all three locations. High tunnel production systems offer greater control of environments suitable for lettuce production, especially in climates like Knoxville and Lubbock where later-planted open-field systems may be more susceptible to temperature swings that may affect lettuce quality. These results suggest that although high tunnel culture alone may influence lettuce yield and quality, regional climates likely play a critical role in determining the impact of these two production systems on marketable lettuce yields.

scholarly journals A Comparison of 13 Sweet Pepper Varieties under an Organic Farming System

2020 ◽  
Vol 30 (1) ◽  
pp. 135-143 ◽  
Author(s):  
George E. Boyhan ◽  
Cecilia McGregor ◽  
Suzanne O’Connell ◽  
Johannah Biang ◽  
David Berle
Keyword(s):  
Capsicum Annuum ◽  
Total Yield ◽  
Farming System ◽  
Sweet Pepper ◽  
Organic Production ◽  
King Arthur ◽  
Designed Experiment ◽  
Main Factors ◽  
Production Practices ◽  
Organic Farming System

There is a dearth of information on pepper (Capsicum annuum) variety production under organic conditions; therefore, a randomized complete block designed experiment of 13 pepper varieties were evaluated in 2016 and 2017 using organic production practices on land managed organically for the 6 previous years. Total yield, graded yield, and early yield were the main factors of interest. There were by-year interactions, so the data were analyzed separately for each year. All of the peppers evaluated except for ‘Sweet Chocolate’ were bell pepper types. The average total yield was 1229 and 1754 boxes/acre (28 lb/box) in 2016 and 2017, respectively. There were no statistically significant differences for total yield or early total yield in 2016. In 2017, the top five highest yielding varieties were Aristotle X3R®, Gridiron, King Arthur, Flavorburst, and Blitz. With the exception of ‘Flavorburst’, all of these entries were among the highest yielding for fancy fruit (≥3 inches diameter and 3.5 inches length). The greatest early yield in 2017 included ‘Aristotle X3R®’, ‘Flavorburst’, ‘Touchdown’, ‘Islander’, and ‘Gridiron’. In 2017, early yields of fancy fruit greater than 100 boxes/acre included ‘Aristotle X3R®’, ‘Red Knight X3R®’, ‘Blitz’, and ‘Gridiron’.

scholarly journals Newspaper Mulches for Suppressing Weeds for Organic High-tunnel Cucumber Production

2008 ◽  
Vol 18 (1) ◽  
pp. 154-157 ◽  
Author(s):  
Elsa Sánchez ◽  
William J. Lamont ◽  
Michael D. Orzolek
Keyword(s):  
Cucumis Sativus ◽  
Organic Production ◽  
High Tunnel ◽  
High Tunnels

Mulches usable in organic production were evaluated in high tunnels for their ability to suppress weeds. Mulch treatments were shredded newspaper, sheets of newspaper, straw, and a no-mulch control that was weeded once. Four cucumber (Cucumis sativus) cultivars were also evaluated. Yields were highest and fruit largest from ‘Sweet Marketmore’ and lowest from ‘Lemon’. Yields were unaffected by mulch treatments. Weed populations were highest in control plots and lowest in those with shredded newspaper. Cultivars did not affect weed populations. Sheets of newspaper degraded the most, followed by shredded newspaper and straw. Yields were not influenced by any mulch treatment, indicating weed populations remained below yield-depressing levels regardless of treatment.

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