scholarly journals PENGARUH KONSENTRASI DAN INTERVAL WAKTU PEMBERIAN PUPUK ORGANIK CAIR TERHADAP HASIL TANAMAN PAKCOY (Brassica rapa L.) DENGAN SISTEM HIDROPONIK DFT

2019 ◽  
Vol 2 (1) ◽  
pp. 34
Author(s):  
Ilham Budi Susilo

ABSTRACT Demand for mustard in Indonesia continues to increase while the amount of agricultural land per capita in Indonesia is still low. One effort to increase the productivity and quality of an efficient pakcoy can be done with hydroponics. The number of rabbits that are potential to be processed into rabbit urine-based POC. POC rabbit has an uns N content of 2.72%, P 1.1%, K 0.5% higher compared to some cattle dung. Research is needed regarding rabbit urine POC concentrations and appropriate time intervals for pakcoy plants. This research uses RAL method compiled by factorial consisting of 2 factors applied to the pakcoy pakcoy plant which is repeated 3 times. Factor 1 is the concentration of POC rabbits consisting of P0: 0 ml / liter, P1: 10 ml / liter, P2: 15 ml / liter, P3: 20 ml / liter. Factor 2 is the time interval for rabbit POC administration consisting of W1: 4 days, W2: 5 days, W3: 6 days. The best concentration was the POC concentration of 20 ml / l and the time interval was once every 6 days with an average fresh weight of 190.67 g / plant canopy. Keywords : Pakcoy, Liquid Organic Fertilizer rabbit, concentration, interval tume, hydroponic. ABSTRAK Permintaan sawi di Indonesia terus mengalami peningkatan sedangkan jumlah luas lahan pertanian perkapita di Indonesia masih rendah. Salah satu usaha peningkatan produktivitas dan kualitas pakcoy yang efisien dapat dilakukan dengan hidroponik. Jumlah kelinci yang banyak menjadi potensi untuk diolah menjadi POC berbasis urin kelinci. POC kelinci memiliki kandungan unsur N 2.72%, P 1.1%, K 0,5% yang lebih tinggi dibandingkan dengan beberapa kotoran ternak. Perlu dilakukan penelitian mengenai konsentrasi POC urin kelinci dan interval waktu yang tepat untuk tanaman pakcoy. Penelitian ini menggunakan metode RAL yang disusun secara faktorial yang terdiri dari 2 faktor perlakuan yang diaplikasikan pada tanaman pakcoy pakcoy yang diulang 3 kali. Faktor 1 yaitu konsentrasi POC kelinci yang terdiri dari P0: 0 ml/ltr, P1: 10 ml/ltr, P2:15 ml/ltr, P3:20 ml/ltr. Faktor 2 yaitu interval waktu pemberian POC kelinci terdiri dari W1: 4 hari sekali, W2: 5 hari sekali, W3: 6 hari sekali. Perlakuan terbaik yaitu pada Konsentrasi POC 20 ml/l dan interval waktu 6 hari sekali dengan rerata berat segar tajuk 190,67 g/tanaman. Kata kunci: pakcoy, POC urin kelinci, konsentrasi POC, interval Waktu POC, Hidroponik.


2021 ◽  
Vol 1 (01) ◽  
pp. 1-12
Author(s):  
Adi Fathul Qohar ◽  
Eko Hendarto ◽  
Munasik ◽  
Nur Hidayat ◽  
Bahrun ◽  
...  

ABSTRAK Penelitian dengan metode eksperimental yang bertujuan untuk mengkaji pengaruh kombinasi dosis pemupukan kompos organik dan penambahan azolla terhadap pertumbuhan rumput raja (Pennisetum purpureophoides). Penelitian telah dilakukan pada tanggal 1 April sampai 30 September 2020 terletak di lahan pertanian, Desa Beji, Kecamatan Kedungbanteng, Kabupaten Banyumas. Percobaan menggunakan rancangan acak lengkap pola faktorial dengan faktor pertama adalah dosis pupuk kompos organik yakni 10, 20, dan 30 ton ha-1, dan penambahan azolla yakni 10, 20, 30 persen dari faktor pertama sehingga dihasilkan 9 kombinasi perlakuan. Setiap kombinasi perlakuan diulang sebanyak 3 kali sehingga menghasilkan 27 satuan percobaan. Tanaman rumput raja pada pemotongan kedua ditanam pada lahan seluas 400 meter persegi dengan jarak tanam 80 x 40 cm. Pupuk kompos organik yang digunakan berasal dari kotoran sapi potong yang telah selesai proses pengomposan, dan azolla berasal dari lahan persawahan. Parameter penelitian yang diukur adalah tinggi tanaman, dan diameter batang yang diukur pada hari ke 14, 28, dan 42 hari. Data yang telah diperoleh kemudian dianalisis menggunakan analisis variansi (ANOVA) dan dilanjutkan dengan uji orthogonal polinomial. Hasil menunjukan bahwa pemberian dosis kompos berpengaruh sangat nyata (P<0,01) terhadap tinggi tanaman dan diameter batang, sedangkan pemberian pupuk azolla juga berpengaruh sangat nyata (P<0,01) terhadap tinggi tanaman dan diameter batang, akan tetapi interaksi tidak berpengaruh nyata (P>0,05). Pemberian dosis pupuk kompos organik dapat digunakan untuk mencapat pertumbuhan rumput raja yang terbaik sebesar 30 ton ha-1 dan penambahan azolla sebesar 30 persen dari dosis pupuk organik. Kata kunci: Azolla, Kompos, Pertumbuhan, Rumput Raja ABSTRACT Research with experimental method aims to examine the effect of combination dose of organic compost fertilization and the addition of Azolla on the growth of king grass (Pennisetum purpureophoides). From April 1 to September 30, 2020, research was conducted on agricultural land, Beji Village, Kedungbanteng District, Banyumas Regency. The experiment used a completely randomized design with a factorial pattern with the first factor being the dose of organic compost, namely 10, 20, and 30 tons ha-1, and the addition of Azolla, namely 10, 20, 30 percent of the first factor, resulting in 9 treatment combinations. Each treatment combination was repeated three times to produce 27 experimental units. The king grass plant in the second cutting was planted on ??400 square meters with a spacing of 80 x 40 cm. The organic compost used is derived from beef cattle dung that has finished the composting process, and Azolla comes from rice fields. Research parameters measured were plant height and stem diameter measured on days 14, 28, and 42 days. The data that had been obtained were then analyzed using analysis of variance (ANOVA) and continued with the orthogonal polynomial test. The results showed that the dose of compost had a very significant effect (P<0.01) on plant height and stem diameter, while the application of Azolla fertilizer also had a very significant effect (P<0.01) on plant height and stem diameter, but the interaction had no effect significant (P>0.05). Dosage of organic compost can be used to achieve the best king grass growth of 30 tons ha-1 and the addition of Azolla by 30 percent of the dose of organic fertilizer. Keywords: Azolla, Compost, Growth, King Grass



2019 ◽  
Vol 8 (5) ◽  
pp. 216 ◽  
Author(s):  
Jeongwoo Lim ◽  
Naoko Nitta ◽  
Kazuaki Nakamura ◽  
Noboru Babaguchi

Geographic information, such as place names with their latitude and longitude (lat/long), is useful to understand what belongs where. Traditionally, Gazetteers, which are constructed manually by experts, are used as dictionaries containing such geographic information. Recently, since people often post about their current experiences in a short text format to microblogs, their geotagged (tagged with lat/long information) posts are aggregated to automatically construct geographic dictionaries containing more diverse types of information, such as local products and events. Generally, the geotagged posts are collected within a certain time interval. Then, the spatial locality of every word used in the collected geotagged posts is examined to obtain the local words, representing places, events, etc., which are observed at specific locations by the users. However, focusing on a specific time interval limits the diversity and accuracy of the extracted local words. Further, bot accounts in microblogs can largely affect the spatial locality of the words used in their posts. In order to handle such problems, we propose an online method for continuously update the geographic dictionary by adaptively determining suitable time intervals for examining the spatial locality of each word. The proposed method further filters out the geotagged posts from bot accounts based on the content similarity among their posts to improve the quality of extracted local words. The constructed geographic dictionary is compared with different geographic dictionaries constructed by experts, crowdsourcing, and automatically by focusing on a specific time interval to evaluate its quality.



2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Senada Hajdarevic ◽  
Åsa Hörnsten ◽  
Elisabet Sundbom ◽  
Ulf Isaksson ◽  
Marcus Schmitt-Egenolf

We aimed to describe and compare patients diagnosed with malignant melanoma (MM), depending on their initial contact with care and with regard to age, sex, and MM type and thickness, and to explore pathways and time intervals (lead times) between clinics from the initial contact to diagnosis and treatment. The sample from northern Sweden was identified via the Swedish melanoma register. Data regarding pathways in health care were retrieved from patient records. In our unselected population of 71 people diagnosed with skin melanoma of SSM and NM types, 75% of patients were primarily treated by primary health-care centres (PHCs). The time interval (delay) from primary excision until registration of the histopathological assessment in the medical records was significantly longer in PHCs than in hospital-based and dermatological clinics (Derm). Thicker tumors were more common in the PHC group. Older patients waited longer times for wide excision. Most MM are excised rapidly at PHCs, but some patients may not be diagnosed and treated in time. Delay of registration of results from histopathological assessments within PHCs seems to be an important issue for future improvement. Exploring shortcomings in MM patients’ clinical pathways is important to improve the quality of care and patient safety.



Author(s):  
Christopher P.F. Marinangeli ◽  
Hrvoje Fabek ◽  
Mavra Ahmed ◽  
Diana Sanchez-Hernandez ◽  
Samara Foisy ◽  
...  

The 2015 Canadian Community Health Survey was used to investigated the protein content and protein quality of the diets consumed by adults (≥ 19 years) when plant protein is increased. Individuals (n=6498) were allocated to quartiles of increasing proportions of protein from plant foods (Q1:0-24.9%; Q2:25%-49.9%; Q3:50-74.9%; Q4:75-100%). The Protein Digestibility Corrected Amino Acid Score (PDCAAS) of diets were estimated using indispensable amino acid concentrations of foods and an assumed digestibility coefficient of 0.8. Corrected protein intakes were determined by aggregating foods consumed over 24hrs and as the sum of corrected protein consumed at eating events within six, four-hour time intervals. Most individuals (51%) consumed 25-49.9% of protein from plant foods. Cereal-based foods represented the majority of plant protein consumed. PDCAAS of diets remained ≥0.87 for Q1-3, but decreased (p<0.0001) to 0.71±0.018 in Q4 vs. Q2 (0.96±0.004). Corrected protein intakes in Q2 (80.66±1.21 g/day; 1.07±0.03 g protein/kg BW) decreased to 37.13±1.88 g/day (0.54±0.03 g/kg BW) in Q4 (p<0.0001). Aggregated daily corrected protein intake strongly correlated (r=0.99; p<0.001) with the sum of corrected protein consumed within time intervals. Intra-time interval analysis revealed that the relative proportions of animal and plant proteins changed at eating events over 24hrs; and did not reflect the allocation to quartiles based on the daily proportion of plant protein consumption. Various tools should be explored and developed to assist Canadians in effectively incorporating plant protein foods into dietary patterns. Novelty: ●Corrected protein intakes decreased as plant protein consumption increased. ●PDCAAS was ≥0.87 for diets with ≤74.9% plant protein.



2020 ◽  
pp. 1-9
Author(s):  
Nicola Hofmann ◽  
Ilka Wittmershaus ◽  
Anna-Katharina Salz ◽  
Martin Börgel

<b><i>Background:</i></b> The realization of tissue donations is bound to a tight timeframe. Depending on the type of tissue, time limits are specified within which the donation must be procured and processed. Otherwise, there is a risk of tissue quality loss with increasing time intervals from cardiovascular arrest. According to the European Directorate for the Quality of Medicines and HealthCare (EDQM) guide, cornea must be procured and processed within 72 h after death. The question arises whether this time interval has an influence on the quality of transplanted tissues and how it affects the accomplishment of tissue donations. <b><i>Methods:</i></b> In order to obtain information on this, the numbers of tissue donations in the network of the German Society for Tissue Transplantation (DGFG) were evaluated as a function of the death to retrieval time (DRT) as well as the death to preservation time (DPT). For this purpose, 21,454 database entries of cornea donations made in the period from 2014 to 2018 were included. <b><i>Results:</i></b> The results show that nearly 50% of donations realized in the DGFG network could be processed only 48 h or later after cardiovascular death due to the opt-in regulation in Germany. For these donations, there seems to be a higher discard rate compared to donations taken earlier. Nevertheless, there is a transplantation rate for these grafts of more than 65%, which is comparable to average transplantation rates stated in the literature. <b><i>Conclusion:</i></b> All corneas finally selected for transplantation must meet the specified quality parameters. Since this naturally also applies to transplants that could only be procured at later time points, it can be concluded that DPT up to 72 h for corneal tissue is adequate and has no influence on the quality of corneas that are ultimately transplanted.



Author(s):  
Alakhyar Alakhyar ◽  
Fahrurrozi Fahrurrozi ◽  
Widodo Widodo ◽  
Dia Novita Sari

Green biomass is one of major nutrient source and determines the quality of liquid organic fertilizer (LOF), including Gliricidia sepium (Jacq.) Kunth ex Walp. An experiment was conducted to study the effects of Gliricidia-enriched LOF on growth and yields of caisim, arranged in randomized complete design with three replicates. Treatments consisted of six LOF concentrations, 0%, 20%, 40%, 60%, 80% and 100%. Results indicated that concentration of gliricidia-LOF significantly influenced leaf greenness and shoot fresh weight, but not root to shoot ratio and shoot water content.  Concentrations of gliricidia-LOF increased leaf greenness and shoot fresh weight of caisim. The optimum concentration was 70.85% to produce weight of 73 grams caisim per plant. Root to shoot ratio was not significantly different. Although treatments did not affect shoot water content, all caisim water content was on average above 90 %. 



2020 ◽  
Vol 5 (2) ◽  
pp. 52-57
Author(s):  
Tedi Akhdiat ◽  
Hilman Permana ◽  
Nilawat Widjaja ◽  
Raden Febrianto Christi ◽  
Dini Elsa Alfiani

Milking is the act of removing milk from the udder on purpose to get maximum milk production. A reasonable milking interval will affect the amount of milk production. This research aims to know the extent of the milking time interval affecting Friesian Holstein dairy cow milk production and the interval of milking time that produces the best production and quality of Friesian Holstein.  The research method was an experiment using a completely rand randomized with four treatments, namely: treatments 1 was 16:8 hours time delivery interval (TDI) dairy cow; treatments 2: time delivery interval (TDI) 15:9 hours; treatment 3: delivery time interval (TDI) 14:10 hours; treatment 4: time delivery interval (TDI) 13:11 hours.  The observed variables are milk production and milk quality.  The data were analyzed using verbal if any effect of treatment was done Duncan's distance test. Based on the results and discussion, the milking time interval significantly impacts milk production and water content. Still, it has no significant effect on the density, protein content, and milk fat content, 13:11 hours milking interval time produces the most milk and water content.



2020 ◽  
Vol 9 (9) ◽  
pp. e266996912
Author(s):  
Sara Beatriz da Costa Santos ◽  
Solange de Sousa ◽  
Vênia Camelo de Souza ◽  
George Rodrigo Beltrão da Cruz ◽  
Thiago de Sousa Melo ◽  
...  

This work compares the productivity and postharvest quality of C. sativum produced in organic and conventional systems. We used a randomized block experiment with five treatments and six repetitions each. Treatments comprised a negative control (C-: without fertilization), three doses of bovine manure as organic fertilization (35, 70, and 105 kg of N ha -1, named T35, T70, and T105 respectively), and a positive control (C+: 70 Kg of N ha -1 of conventional fertilization). We evaluated the morphometry, productivity, and physical-chemical characteristics of all plants used. The effect of organic fertilizer doses was analyzed using polynomial regressions. The differences among negative control, the positive control, and the organic fertilization with 70 Kg of N ha -1 of manure were tested with orthogonal contrasts. The doses of N used in organic fertilization influence the water and protein activity of C. Sativum leaves, promoting their decrease. The contrasts influenced the productivity, total fresh weight, fresh weight of the aerial part, dry weight of the aerial part, dry weight of the root, the total dry weight, water activity, titratable acidity, soluble solids, carotenoids, total chlorophyll, chlorophyll b, C. sativum was influenced by comparisons. The conventional production system using ammonium sulfate as the source of nitrogen promoted higher productivity and better postharvest quality in the culture of C. sativum. The period of implementation of bovine manure hampered the organic system. We suggest the fertilization with bovine manure before sowing, providing the necessary time for its mineralization during the cultivation cycle.



1961 ◽  
Vol 9 (1) ◽  
pp. 193-209 ◽  
Author(s):  
M. K. Keech

The kinetics of collagen reprecipitation from solutions of salt-extracted calf dermis in the presence of small amounts of mucopolysaccharide and nucleic acids (0.005 per cent in the final reaction mixture) has been reported by Wood (1960). The present paper is a parallel study using the same materials, and describes the electron microscopic (EM) morphology of the collagen precipitates replicated after 24 hours at room temperature. Satisfactory, uncontaminated EM preparations were obtained which showed that all the deposits were fibrous and bore the 640 A cross-banding characteristic of collagen except some narrow, background fibrils 200 to 1000 A wide precipitated in the presence of heparin. These exhibited fine striations about 220 A apart. Chondroitin sulfate greatly increased the rate of precipitation to give a deposit of low optical density consisting of narrow, rigid, discrete fibrils resembling fresh dermis. In contrast, heparin prevented macroscopic gelation, delayed precipitation, and only produced a scanty deposit of abnormal, short, wide, striated tactoids and compound fibers of varying length. The control preparations and the deposits formed in the presence of hyaluronic acid were intermediate between these two extremes. Delayed precipitation was associated with a coarser deposit and aggregation of the fibrils. A duplicate series of deposits precipitated in the presence of RNA and DNA, together with their controls, were examined after ½, 1, 1½, 3, 9, and 24 hours. One set employed an acetic extract of whole calf dermis and the other salt-extracted dermis. The presence of 0.005 per cent DNA in the reaction mixture markedly delayed collagen precipitation with the slow formation of abnormal, short, wide tactoids and compound fibers. RNA also interfered with the quantity and quality of the deposits which contained far less collagen resembling unfixed, normal, adult human dermis, than the controls at the corresponding time intervals. Comparison of the experiments employing whole calf dermis with those employing the salt-extracted material demonstrated that at every time interval in all the experiments the deposits were retarded when salt-extracted dermis was used. This suggests that the salt-soluble components of the dermis play a part in fiber formation.



2021 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Arum Asriyanti Suhastyo ◽  
Fanny Tri Raditya

Growth in mustard greens is greatly influenced by the availability of macro nutrients and micro nutrients, where if the availability of nutrients in the soil is not optimal, fertilization must be carried out. This study aims to examine the effect of the application of liquid organic fertilizer, moringa leaves and eggshells with different concentrations and intervals of fertilizer on the growth of mustard greens. The research design used was a factorial Randomized Block Design, with two factors being tried namely fertilizer application and fertilizer time intervals. First factor: without administration of POC (K0), Moringa leaf POC: eggshell POC 25: 75 ml / l (K1), Moringa leaf POC: eggshell POC 50: 50 ml / l (K2), moringa leaf POC: eggshell POC eggs 75: 25 ml / l (K3). The second factor: the interval of giving F1 fertilizer = 5 days, F2 = 6 days, F3 = 7 days. Each treatment was repeated 3 times to obtain 36 experimental plots. Analysis of the data used to determine the observed response to the treatment given was done by the Analysis of Variance Analysis (ANOVA) and if it showed a real difference followed by Duncan's Multiple Range Test. The conclusion of this study shows that the application of Daunkelor liquid fertilizers and eggshell to the growth of mustard Samhong has not been able to increase plant height, number of leaves and fresh weight of the plan



Sign in / Sign up

Export Citation Format

Share Document