scholarly journals Systems of organic farming in spring vetch I: Biological response of sucking insect pests

2015 ◽  
Vol 30 (2) ◽  
pp. 77-84
Author(s):  
Ivelina Nikolova ◽  
Natalia Georgieva

Four systems of organic farming and a conventional farming system were studied over the period 2012-2014. The organic system trial variants included: I - an organic farming system without any biological products used (growth under natural soil fertility) - Control; II - an organic farming system involving the use of a biological foliar fertilizer and a biological plant growth regulator (Polyversum+Biofa); III - an organic farming system in which a biological insecticide (NeemAzal T/S) was used; IV - an organic farming system including a combination of three organic products: the foliar fertilizer, the plant growth regulator and the bioinsecticide (Polyversum+Biofa+NeemAzal T/S). Variant V represented a conventional farming system in which synthetic products were used in combination (foliar fertilizer, plant growth regulator and insecticide: Masterblend+Flordimex 420+Nurelle D). Treatment of vetch plants with the biological insecticide NeemAzal in combination with Biofa and Polyversum resulted in the lowest density of sucking pests, compared to all other organic farming methods tested (i.e. without NeemAzal, with NeemAzal alone, and its combination with Biofa and Polyversum). The greatest reduction in pest numbers during the vegetation period in that variant was observed in species of the order Thysanoptera (36.0-41.4%), followed by Hemiptera, and the families Aphididae (31.6-40.3%) and Cicadellidae (27.3-28.6%). This combination showed an efficient synergistic interaction and an increase in biological efficacy as compared to individual application of NeemAzal. The highest toxic impact was found against Thrips tabaci, followed by Acyrthosiphon pisum. An analysis of variance regarding the efficacy against the species A. pisum, E. pteridis and T. tabaci showed that type of treatment had the most dominant influence and statistically significant impact.

2015 ◽  
Vol 30 (3) ◽  
pp. 147-153 ◽  
Author(s):  
Ivelina Nikolova ◽  
Natalia Georgieva

The effects of four systems of organic farming of spring vetsch on Aeolothrips intermedius Bagnall (Thysanoptera: Aeolothripidae) and Coccinella septempunctata L. (Coleoptera: Coccinellidae) population density and the toxicity of several products on predatory insects were studied. The variants were: Control (without using any biological products); combined treatment with Polyversum (biological foliar fertilizer) and Biofa (biological plant growth regulator); treatment with NeemAzal T/S (biological insecticide, a.i. azadirachtin) and treatment with a combination of NeemAzal with Polyversum and Biofa. Variant V was a conventional farming system in which a combination of Nurelle D (synthetic insecticide), Masterblend (foliar fertilizer) and Flordimex 420 (growth regulator) was used as a standard treatment. In the organic farming system that included treatment of plants with the biological insecticide NeemAzal (azadirachtin), the reduction in A. intermedius abundance was 20.7% when it was applied alone and 24.6 % in combination with the organic products Polyversum and Biofa. NeemAzal achieved a lower reduction in the counts of predatory ladybirds C. septempunctata, from 14.9% (alone) to 21.9% (combination). The biological insecticide, applied alone or in combination, was mostly harmless and rarely harmful to A. intermedius. NeemAzal manifested harmlessness to C. septempunctata as its toxic action did not exceed 25%. An analysis of variance regarding product toxicity to A. intermedius and C. septempunctata demonstrated that the type of treatment (the application of insecticides alone or in combination) had the strongest effect on product toxicity. ?he use of neem-based insecticides can be a substantial contribution towards preservation of biodiversity in ecosystems.


2018 ◽  
Vol 14 (4) ◽  
pp. 167-171
Author(s):  
Antonio Victor Cavalcante da Rocha Silva ◽  
Junia Mariza Alves Araujo ◽  
Andrea Rhavena Rodrigues Arruda ◽  
Francisco Barbosa de Macedo Jr ◽  
Jadson Emanuel Lopes Antunes ◽  
...  

The aim of this study was to evaluate, in the field, the soilrespiration and bulk density underconventional and organic farming plots. The evaluations were made in different plots established as conventional farming system and organic farming system with six, nine, twelve, fifteen, eighteen and twenty one months old. Plots were divided in four transects (subplots) and ineach subplot were evaluated soil respiration, bulk density and porosity. The soil respiration was significantly greater in organic farming system with fifteen, eighteen and twenty-one monthsold as compared with conventional farming. Soil bulk density decreased fifteen months afteradoption of organic system. Theresults showed that the adoption of practices in organic farming plots increases microbial activity and decreases soil bulk density over time.


2021 ◽  
Vol 6 (3) ◽  
pp. 367-372
Author(s):  
Susan Makaju ◽  
Kabita Kurunju

The growing use of chemical pesticides haphazardly and their harmful influence on ecosystem and human health highlight the necessity for safe and sustainable organic production in our time. The article reviews a general overview of organic farming; the impact of organic farming on soil health and climate mitigation in comparison with conventional farming practice in Nepal. The article identifies the problems and possibilities of organic farming to resuscitate the pesticide-dominated conventional practice in Nepal. Organic farming now has been embedded in the natural agriculture policy in Nepal. Organic farming benefits in terms of environmental protection along with better living health. Various governmental and non-governmental bodies, farmers, and individuals are working to promote organic farming in Nepal. With the increase in awareness of health and environmental concerns, the adoption of organic agriculture and the demand for organic agricultural products is increasing. It holds a great prospect in countries like ours where an integrated crop-livestock system is still prevalent in many parts of the country. As a result, an organic farming system in Nepal must be thoroughly investigated and supported through proper regulations and tactics. It is urged to supplant pesticide-based conventional farming with organic farming that leads towards agricultural sustainability for the upcoming generation.


Author(s):  
R. Chethan ◽  
R.K. K. Patil ◽  
B. Halappa

A study was carried out to know the response of organic, integrated and conventional farming systems on the diversity of soil meso and macro arthropod populations in the cotton inter cropped with groundnut and pigeonpea at MARS, UAS, Dharwad during kharif -2015-16. The organic farming system has recorded highest meso and macro arthropod population of 21.35 per 100 g of soil and 42.00 per pitfall trap respectively. Cotton intercropped with groundnut has recorded higher population of meso and macro arthropods (15.50 /100 g of soil and 41.26/ pitfall trap, respectively). The seasonal abundance of soil arthropods was high in October (25.89/100g of soil) and least in December (5.78/ 100g of soil) months. The diversity of soil arthropod populations assessed on the Shannon’s index of below ground arthropod populations recorded was highest in organic farming (0.61) and least in conventional farming (0.51) system. Hence, the organic farming system increases abundance and diversity of soil organisms and soil fertility, and it adds large amounts of organic residue inputs, which in turn increases the biological activity in soil.


el–Hayah ◽  
2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Tien Tien

<p>The application of organic farming on rice farming in Indonesia is still new to  know. The farming interested if efficiency economics. The meaning efficiency economics if the technical   efficiency. This research aimed to evaluate the performance of organic rice farming systems, focusing on: (1) identifying the range of application of organic farming on rice farming, (2) analyzing the productivity and income from applying organic  farming, and (3)  analyzing  the technical   efficiency of  applying  organic  farming  and identifying factors that influence it.<br />The study was conducted in Malang Regency with take sample Sumber Ngepoh village, Lawang, Malang. This village is purposively taken because this is only a village in East Java which has obtained a certificate as a producer of organic rice from Organic Certification Agency. Furthermore, farmers did not interested application of organic farming. The sample of farmers 120  respondents selected by using non-proportionate stratified random sampling among those applying organic rice farming. The data are anal<br />The results at the study stage show that there was diversity between implementing organic and agricultural organic farming system. This diversity reached only 8,33 percent application of organic rice farming of the total land area, while the rest was still in the transitional stage of applying organic system. The application of organic rice farming must independently be able to increase production and income of the farmer. <br />Judging from the level of technical efficiency, the application of organic rice farming is generally quite high, above the value of TE (technical efficiency) 0.8, while applying an independent organic farming has higher technical efficiency than others. Determinant of technical efficiency is the practice of Sekolah Lapang  or Field School and the independence of farmers in affording resources locally.</p><p>Keywords: Technical efficiency, independence of rice farming  system, Organic  farming applications.<br /><br /></p>


el–Hayah ◽  
2012 ◽  
Vol 1 (4) ◽  
Author(s):  
Tien Tien

The application of organic farming on rice farming in Indonesia is still new to  know. The farming interested if efficiency economics. The meaning efficiency economics if the technical   efficiency. This research aimed to evaluate the performance of organic rice farming systems, focusing on: (1) identifying the range of application of organic farming on rice farming, (2) analyzing the productivity and income from applying organic  farming, and (3)  analyzing  the technical   efficiency of  applying  organic  farming  and identifying factors that influence it.<br />The study was conducted in Malang Regency with take sample Sumber Ngepoh village, Lawang, Malang. This village is purposively taken because this is only a village in East Java which has obtained a certificate as a producer of organic rice from Organic Certification Agency. Furthermore, farmers did not interested application of organic farming. The sample of farmers 120  respondents selected by using non-proportionate stratified random sampling among those applying organic rice farming. The data are anal<br />The results at the study stage show that there was diversity between implementing organic and agricultural organic farming system. This diversity reached only 8,33 percent application of organic rice farming of the total land area, while the rest was still in the transitional stage of applying organic system. The application of organic rice farming must independently be able to increase production and income of the farmer. <br />Judging from the level of technical efficiency, the application of organic rice farming is generally quite high, above the value of TE (technical efficiency) 0.8, while applying an independent organic farming has higher technical efficiency than others. Determinant of technical efficiency is the practice of Sekolah Lapang  or Field School and the independence of farmers in affording resources locally.<br /><br />Keywords: Technical efficiency, independence of rice farming  system, Organic  farming applications.<br /><br />


2010 ◽  
Vol 58 (1) ◽  
pp. 37-47
Author(s):  
M. Henselová ◽  
Ľ. Slováková

The effect of the foliar fertilizer Campofort Special-Zn (CSZn) and the plant growth regulator Rastim 30 DKV (RM) on growth, yield parameters and seed protein content was studied in mung bean [ Vigna radiata (L.) Wilczek] plants grown under greenhouse and field conditions. CSZn at a dose of 10 l per ha, and RM at doses of 3, 30 and 60 g per ha were applied alone or in combination (before flowering and 14 days after first application). The initiation of flowering and ripening processes and the chlorophyll content Chl ( a + b ) were evaluated. At harvest, total yield and yield components (number of pods per plant, seed number per pod, single pod mass, seed mass per pod), germination of seeds and seed protein content were determined. RM applied alone induced intensive flowering, increased the number of pods and yield components per plant, accelerated the ripening of the pods, increased the Chl content in the leaves and delayed senescence in treated plants. The mixture of RM with CSZn (60 g + 10 l per ha) and RM alone at a dose of 60 g per ha had a retarding and morphogenic effect on the growth of treated plants and also decreased the protein content and germination of the seeds. The best results for all studied parameters were achieved in the field at a dose of 30 g RM + 10 l CSZn and under greenhouse conditions at a dose of 3 g RM + 10 l CSZn.


2018 ◽  
Vol 1 (2) ◽  
pp. 28-32
Author(s):  
Rini Lestari ◽  
Sri Kartini ◽  
Lusiana Berti ◽  
Megi Romita

The organic farming system is a holistic agricultural production management system for improving and developing agro-ecosystem health, including biodiversity, biological cycles, and soil biological activities. Organic farming systems use natural fertilizers and pesticides, while conventional farming systems still use chemical fertilizers and pesticides. Environmental conditions are expected to affect the chemical content of rice. One of the main chemical constituents in rice is amylose and protein. This research is a laboratory experimental study that aims to see the amylose and protein content of Solok rice types sokan and anak daro which grown with organic farming system and conventional farming system. From the result of the research, equation of calibration curve amylose is Y = 0,0246X + 0,0146 with correlation coefficient (r) = 0,9984. Amylose content of Solok rice type of anak daro organic 28,90%, anak daro conventional 28,04%, sokan organic 30,32% and sokan conventional 30,94%. Protein content of Solok rice type of anak daro organic 8,79%, anak daro conventional 8,15%, sokan organic 8,50% and sokan conventional 8,25%. T value of each group is smaller than the T table value, it can be concluded that the result is not significantly different.


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