scholarly journals Organic Fertilization Programs for Greenhouse Fresh-cut Basil and Spearmint in a Soilless Media Trough System

2011 ◽  
Vol 21 (2) ◽  
pp. 162-169 ◽  
Author(s):  
D.D. Treadwell ◽  
G.J. Hochmuth ◽  
R.C. Hochmuth ◽  
E.H. Simonne ◽  
S.A. Sargent ◽  
...  

Greenhouse experiments were conducted in 2005 and 2006 near Live Oak, FL, to develop fertilization programs for fresh-cut ‘Nufar’ basil (Ocimum basilicum) and spearmint (Mentha spicata) in troughs with soilless media using inputs compliant with the U.S. Department of Agriculture's National Organic Program (NOP). Four NOP-compliant fertilizer treatments were evaluated in comparison with a conventional control. Treatments and their analyses in nitrogen (N), phosphorus (P), and potassium (K) contents are as follows: conventional hydroponic nutrient solution [HNS (150 ppm N, 50 ppm P, and 200 ppm K)], granular poultry (GP) litter (4N–0.9P–2.5K), granular composite [GC (4N–0.9P–3.3K)], granular meal [GM (8N–2.2P–4.1K)], and GM plus a sidedress application of 5N–0.9P–1.7K fish emulsion (GM + FE). Electrical conductivity (EC) of the media, fresh petiole sap nitrate (NO3-N) and K concentrations, dried whole leaf NO3-N, P, and K concentrations, and yield and postharvest quality of harvested herbs were evaluated in response to the treatments. Basil yield was similar with HNS (340 g/plant) and GP (325 g/plant) in 2005 and greatest with HNS (417 g/plant) in 2006. Spearmint yield was similar with all treatments in 2005. In 2006, spearmint yields were similar with the HNS and GP yields (172 and 189 g/plant, respectively) and greater than the yields with the remaining treatments. In both years and crops, media EC values were generally greater with the GC than with the GP, GM, and GM + FE treatments but not in all cases and ranged from 1.77 to 0.55 dS·m−1 during the experiments. Furthermore, HNS media EC values were consistently equal to or lower than the GP media EC values except with EC measurements on 106 days after transplanting in both crops in 2005. Petiole NO3-N and K results were variable among crops and years, but provided valuable insight into the EC and yield data. We expected EC, petiole NO3-N, and petiole K to be consistently higher with HNS than with organic treatments, but they were not, indicating a reasonable synchrony of nutrient availability and crop demand among the organic treatments. The postharvest quality of both basil and spearmint was excellent with all treatments with few exceptions.

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 172 ◽  
Author(s):  
Athanasios Koukounaras ◽  
Filippos Bantis ◽  
Nikolaos Karatolos ◽  
Christos Melissas ◽  
Antonios Vezyroglou

Shelf life of horticultural commodities is dependent on postharvest handling but also on a wide range of pre-harvest factors, which include genetic and environmental parameters. This study was conducted to explore the influence of cultivar, leaf position, and piece position on the leaf on visual quality of fresh-cut butterhead lettuce as well as the effect of a wide range of cultivation seasons on the postharvest quality and shelf life of baby leaves (spinach and ‘wild’ rocket). Six butterhead lettuce cultivars were used (cultivated soilless in an unheated plastic greenhouse) while the effect of leaf position on the plant (outer and inner leaves) and the piece position on the leaf (piece one close to the leaf base and piece four close to the top) were also evaluated. Baby leaves were cultivated under an unheated plastic greenhouse for winter production and under a nethouse for the rest of the growing season, with a total of five and seven sampling dates for spinach and ‘wild’ rocket respectively. The cultivar of butterhead lettuce had a significant effect on postharvest quality of fresh-cut product but more important was the piece position on the leaf. When this was closer to the base of the leaf, there was more browning on cut edges and limited shelf life for the fresh-cut lettuce. The result was associated in one tested cultivar with PAL activity, which was higher by 106% for piece one compared to piece four as an average for the whole storage period. The growing season of baby leaves had a great impact on their shelf life, with the season of mild environmental conditions achieving the highest marketability.


2018 ◽  
pp. 265-270
Author(s):  
M.E. Peña Estevez ◽  
F. Artés-Hernández ◽  
E. Aguayo ◽  
F. Artés ◽  
P.A. Gómez

2015 ◽  
Vol 9 (4) ◽  
pp. 637-649 ◽  
Author(s):  
Aline A. Becaro ◽  
Fernanda C. Puti ◽  
Alan R. Panosso ◽  
Juliana C. Gern ◽  
Humberto M. Brandão ◽  
...  

CCIT Journal ◽  
2014 ◽  
Vol 7 (3) ◽  
pp. 420-436
Author(s):  
Dewi Immaniar ◽  
Sudaryono Sudaryono ◽  
Ayu Ningrum

Talk about retail business can not be separated from the importance of service to consumers and good quality goods . But at the present time due to intense competition in the business world , the service and quality of goods is not enough to be able to increase revenue and attract customers loyal . This makes companies think hard to survive and stable in the business . One of them is by using a media campaign in this regard more toward print or visual media is indirectly felt the value of their effectiveness in communicating product marketing programs . PT . Times Prima Indonesia is a company engaged in the retail book with the name of the Times bookstores . Based on the analysis of the company’s problems requires additional media types supporting more varied and creatif promotion of existing ones, which will be used as a complement and a media campaign as well as to enrich the data renewal campaign design to capture the interest of consumers in which one form of the media campaign is shaped merchandise . Therefore , do Enriching ( enrich ) media campaign merchandise before it is less varied and has not formed a company image . The methodology used is the analysis, observation and design . Besides the new design has been tested with the implemented test duration for 6 months, and greatly increases the perceived contribution , this is evidenced by the chart sales increasing each month.


2020 ◽  
Vol 8 (01) ◽  
pp. 55-66
Author(s):  
Feri Tiona Pasaribu ◽  
Yelli Ramalisa

The focus of this research is to design geometry learning mediain junior high schools based on RME and integrated with Science, Technology, Engineering and Mathematics (STEM) using 3D Pageflip Proffesional,and to explain quality of the learning media. In the process of design and development of this media used is the ADDIE development model which begins with the stages analysis, design, development, and  carried out an evaluation in each stages. Implementation stages will be continued in the following years research. This research resulted in a product in the form of geometry learning media in junior high schools especially eight grade according to purpose. Based on the validity test and practicality test the results obtained from the validation by material experts and media design experts were 4.09 namely 81.8% and 4.21 or 84.2%.Based on the criteria for the validity of the instrument, the criteria for "very valid" were obtained. And the practicality results, namely the results of teacher response questionnaire obtained an average of 4.26 or 85.19%, and the results of student questionnaire responses were 4.07 or 81.4%. Then based on the percentage criteria of practicality of the instrument, it is found that the criteria are very practical and the media can be implemented with minor revisions.


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