scholarly journals Establishment of algae as bio-fertilizer for coffee plant

Author(s):  
Niroj Paudel ◽  
Won Hee Kang

<p class="abstract"><strong>Background:</strong> <em>Coffea arabica </em>L. is belongs to the Rubiaceae<strong>, </strong>is worldwide value for the coffee beverage.<strong> </strong>This experiment is aims to prove algae as bio-fertilizer in <em>Coffea arabica </em>L. The role of BGA and moss prevent the soil as dry condition which also provide the nutrients for the crops.</p><p class="abstract"><strong>Methods:</strong> Experiment was conduct in the plastic house in Kangwon National University, using the 2 yrs. <em>Coffea arabica</em> L. seedling dividing into four groups; Algae+NPK, Algae, NPK, Control.  </p><p class="abstract"><strong>Results:</strong> The height, branching and number of leaves is higher in case of Algae+NPK. The following order is observed in each group; Algae+NPK &gt;Algae &gt;NPK &gt;Control with water.</p><p class="abstract"><strong>Conclusions:</strong> The algae proves that the positive role of <em>Coffea arabica </em>for growth and development which can be used for the manure in the coffee farm.</p>

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Jaafar Juju Nakasha ◽  
Uma Rani Sinniah ◽  
Adam Puteh ◽  
Siti Aishah Hassan

Tubers of safed musli (Chlorophytum borivilianum) were immersed in three different concentrations of gibberellic acid (GA3) or humic acid (HA) prior to planting. The highest concentration of GA3(20 mg L-1) and all concentrations of HA (5, 10, and 15%) appeared to hasten tuber sprouting and promote uniform sprouting pattern. The use of 20 mg L-1GA3or 15% HA successfully improved sprouting and mean sprouting time. Safed musli growth and development was improved through the increase in the number of leaves, total leaf area, leaf area index, and total fibrous root length. This directly influenced the number of new tubers formed. The use of 20 mg L-1GA3or 15% HA gave similar response with nonsignificant difference among them. However, due to the cost of production, the result from this study suggests that 15% HA should be used to obtain improved sprouting percentage, homogeneous stand establishment, efficient plant growth and development, and increased yield of safed musli.


2018 ◽  
Vol 71 (4) ◽  
pp. 111-117
Author(s):  
O. V. Myloslavska

The article presents results of the study of interpersonal dependence in the context of reflection as a necessary condition for personal autonomy and the mechanism of constructing and organizing a life perspective in adolescence. The psychological content of the phenomenon of interpersonal dependence is revealed, its destructive influence on the personality is emphasized, the positive role of reflection as a factor of actualization of the autonomy of the individual and the neutralization of interpersonal dependence is substantiated. The purpose of the study was to identify the relationship of interpersonal dependence and differential types of reflection in students – boys and girls. The scientific novelty of the research is determined by the fact that in the work for the first time the peculiarities of the functioning of interpersonal dependence and differential types of reflection on the students were determined, differences in the structure of the interrelationship between these phenomena in students – boys and girls were analyzed. The Interpersonal Dependency Inventory by R. M. A. Hirschfeld, Relationship Profile Test by R. F. Bornstein (both – in an adaptation by O. P. Makushina) and Differential Test of Reflexivity by D. A. Leontiev and E. M. Osin were applied to solve empirical problems. The sample consisted of 96 students of V. N. Karazin Kharkiv National University. The first group included of 45 boys, the second – 51 girls. For the mathematical processing of data the Spearman rank correlation coefficient was used. It has been established that in both groups an increase in the propensity to unproductive types of reflection is a potential for the development of manifestations of interpersonal dependence. Both boys and girls, with increased introspection, there is an aggravation of destructive overdependence. It was also found that in young men the increase in such manifestations of interpersonal dependence, such as the need for emotional reliance on others, lack of self-confidence, and dependence in general, occurs along with the actualization of the tendency to introspection, while in girls – with the actualization of the tendency to quasi-reflection, together with than in these subjects, destructive overdependence grows. It should be noted that healthy dependence is involved in relationships with the differential types of reflection only in the group of girls, in which its severity increases with increasing ability to systemic reflection and inhibition of quasi-reflection. Results can be used for gender specification of psychological programs for the prevention and correction of interpersonal dependence in the students age. It is noted that the prospect of further research is to study the psychological characteristics that may act as inhibitors of interpersonal dependence in adolescence.


2020 ◽  
pp. 98-109

The scale of soybeans cultivation in the world agriculture it takes a leading place among crops due to its valuable biological and economic properties. Soybeans are ahead of all other crops in terms of acreage growth. Today, the varietal spectrum has grown enormously and the gross grain yield of soybeans has increased. However, the realization of the genetic potential of modern varieties remains rather low and the average yield in Ukraine is 1,2-1,9 t/ha. First of all, maintaining and improving the quality of soybean seed is an important task, along with increasing yields. Vegetation of plants in the period of growth and development and their productivity depend in a certain way on the quality of the seed material, namely: germination, purity, sanitary condition, etc. The scientifically sound fertilizer application system combines basic and row fertilizers and fertilization of cultivated plants during the growing season. Foliar nutrition is called leaf uptake and absorption by the plant of nutrients, amino acids and growth regulators that the root system does not supply enough. The essence of such nutrition is that readily available nutrients of fertilizers enter the vegetative organs of the plants, quickly penetrate the protective wax barrier - cuticle, epidermis - and enter the cells of the plant. The permeability of epidermal cells of the multilayered cuticle depends on the concentration of the nutrient solution, the phase of growth and development, the area and nature of the cover of the leaf blade, climatic conditions, the time of feeding, the shape of the nutrient and other factors. The results of studying the influence of foliar fertilizers on the formation of soybean varieties phytocoenosis productivity and their influence on the qualitative indicators of seeds have been covered. The positive role of the foliar fertilizers action in the formation of individual productivity indicators of soybean plants was found. Foliar feeding is a measure of timely provision of balanced, composition and concentration of nutrients in ionic form – the most accessible for absorption by the leaf surface. Thus, the positive role of foliar fertilizers and varietal features of soybean in the formation of yield indicators was established. Thus, the two-time use of the Vuxal Microplant microfertilizer in the budding and green bean phases in the cultivation of Kent soybean variety allows obtaining positive indicators of the chemical composition of the seeds.


1983 ◽  
Vol 63 (1) ◽  
pp. 277-281 ◽  
Author(s):  
L. E. CRAKER ◽  
M. SEIBERT

The role of photoperiod and irradiance level on growth and development of lettuce was investigated at two stages of plant growth. Vegetative dry weights and the number of leaves are primarily influenced by length of the photoperiod with most growth occurring under long photoperiods and high irradiances. Leaf area of mature plants was related to the input of light energy suggesting a photoregulatory process in the plant that optimizes leaf size for intercepting a constant amount of photosynthetic light.Key words: Lactuca sativa, growth, development, photoperiod, irradiance, light energy


2021 ◽  
Vol 7 (3) ◽  
pp. 126-141
Author(s):  
Ihab I Sadek ◽  
Fatma S Moursy ◽  
Tarek M Younis

This study was performed out at net house, privet farm, Cairo-Alexandria desert road, 80 Km, to present the positive role of using different types of organic mulch; different LEDS (light-emitting diodes) light colors and their combination on lettuce plants as growth and yield. Three types of organic mulch i.e., (mushroom wastes, compost and palm fibers) compared to bare soil and four LEDs light colors i.e., (white, yellow, green and "red + blue + green") plus natural light. Seedlings of lettuce cv. Iceberg were transplanting at 1st November through 2019 and 2020seasons. The study was conducted in a split plot design with three replications. Results obtained that using different types of organic mulch, different LEDs light colors and their combination had a significant overall tested parameters (plant length, number of leaves/head, fresh and dry weights of leaves, leaves contents from N, P and K and total heads yield/m2). In general, cultivated lettuce plants with using different types organic mulch and different LEDs light colors enhanced all tested parameters compared to bare soil or/and natural light. The most positive role of tested factors was noticed with using compost mulch, LEDs "R + B+ G" colors and their combination as compost mulch plus LEDs "R + B+ G colors", which, had greatest values of all tested parameters more than other treatments.


2018 ◽  
Vol 34 (4) ◽  
pp. 229-237 ◽  
Author(s):  
Francesca Chiesi ◽  
Andrea Bonacchi ◽  
Caterina Primi ◽  
Alessandro Toccafondi ◽  
Guido Miccinesi

Abstract. The present study aimed at evaluating if the three-item sense of coherence (SOC) scale developed by Lundberg and Nystrom Peck (1995) can be effectively used for research purpose in both nonclinical and clinical samples. To provide evidence that it represents adequately the measured construct we tested its validity in a nonclinical (N = 658) and clinical sample (N = 764 patients with cancer). Results obtained in the nonclinical sample attested a positive relation of SOC – as measured by the three-item SOC scale – with Antonovsky’s 13-item and 29-item SOC scales (convergent validity), and with dispositional optimism, sense of mastery, anxiety, and depression symptoms (concurrent validity). Results obtained in the clinical sample confirmed the criterion validity of the scale attesting the positive role of SOC – as measured by the three-item SOC scale – on the person’s capacity to respond to illness and treatment. The current study provides evidence that the three-item SOC scale is a valid, low-loading, and time-saving instrument for research purposes on large sample.


2016 ◽  
Vol 3 (2) ◽  
pp. 56-62
Author(s):  
R. Iskra ◽  
V. Vlizlo ◽  
R. Fedoruk

The results of our studies and the data of modern literature regarding the biological role of Cr(III) compounds in conditions of their application in the nutrition for pigs and cattle are discussed. The metabolic impact of Cr(III), coming from different sources – mineral and organic compounds, obtained by chemical synthesis or a nanotechnological method (chromium citrate), as well as in the form of biocomplexes from the cultural medium of Saccharomyces cerevisiae yeasts was analyzed. The metabolic connection between the impact of Cr(III) and the biosynthesis of some hormones – insulin, cortisol – as well as the sensitivity of some tissues and organs to the effect of chromium compounds was studied. A considerable part of the review material was dedicated to the metabolic effect of Cr(III) compounds on the reproductive function of pigs and cattle and their impact on the viability of the offspring and gametes of animals. The data about the stimulating effect of Cr(III) on the growth and development of the organism of piglets and calves, meat and milk performance of these species of animals are discussed. The relevance of dosing Cr(III) in the nutrition of pigs and cattle is highlighted.


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