Organic Farming Research Center

Shimoga, India

Organic Farming Research Center

Shimoga, India

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Asif M.,Organic Farming Research Center | Lone S.,University of Pune | Baba Z.A.,Organic Farming Research Center
Ecology, Environment and Conservation | Year: 2014

This paper investigates the impact of bio-fertilizers on nutrient uptake of blue pine seedlings under nursery conditions. The experiment was tested under Completely Randomised Design with three replications which comprised of two nitrogen fixing bio-fertilizers viz; Azotobacter sp, Azospirillum sp, two phosphorus solubilizing bacteria's viz; Pseudomonas fluorescens, Bacillus subtillis and two ecto-mycorrhizal fungi viz; Pisolithus tinctorius, Laccaria laccata and control. The research findings show that the various biofertilizers enhanced the plant nutrient status viz; N, P, K, Ca and Mg significantly than control. Further, the two ectomycorrhizae viz; Pisolithus tinctorius and Laccaria laccata used in the studies proved superior over rest of the inoculants and control. It was followed by Azotobacter sp, Azospirillum sp, Pseudomonas fluorescens and Bacillus subtillis respectively. Therefore, it can be concluded from the study that the application of biofertilizers at nursery stage improve the nutrient uptake and growth of blue pine plants. Copyright © EM International.


Vinayaka K.S.,Indira Gandi Government College | Noor Nawaz A.S.,Organic Farming Research Center
BioTechnology: An Indian Journal | Year: 2014

The present study was conducted to evaluate antifungal potency of aqueous extract of flowers of Calycopteris floribunda (Roxb.) Poiret (Combretaceae), Kydia calycina Roxb (Malvaceae) and Humboldtia brunonis Wall (Caesalpiniaceae) against Fusarium oxysporum f.sp. zingiberi and Pythium aphanidermatum isolated from rhizome rot specimens of ginger by poisoned food technique. The test fungi were inoculated on potato dextrose agar plates poisoned with aqueous extract of flowers (10%). The flower extracts were found to be inhibitory to test fungi as evidenced by reduction of mycelial growth of test fungi in poisoned plates.Among flowers, C. floribunda has shown higher inhibition of test fungi than other flowers. P. aphanidermatum was inhibited to more extent than F. oxysporum. Further, in vivo studies are required to recommend the flower extracts for controlling rhizome rot pathogens. © 2014 Trade Science Inc. - INDIA.


Asif M.,Organic Farming Research Center
Ecology, Environment and Conservation | Year: 2014

Seed is essential in the regeneration of forests. It is the primary method used by conifers to reproduce, maintain genetic variability, and become established on appropriate sites. Seed germination of most temperate coniferous species is inhibited by seed dormancy. Conifer seeds generally have physiological dormancy and this can be overcome by cold stratification at 2°C-5°C, some conifer seeds may require one month or less cold stratification to overcome dormancy. Seed dormancy in many conifers such as Abies alba, Abies pindrow, Abies procera, Picea smithiana , Pinus densiflora and Cedrus deodara can be overcome by cold stratification and over wintering for varying periods of time from 21 to 90 days. The duration of cold stratification required to overcome physiological dormancy of the seed from different populations may differ in several species. The conifer trees are sporadic in nature in their seed production, the good seed year occur in conifers after long intervals. So it is important to collect the abundant quantity of healthy seeds in good seed year and then store them under favourable conditions for the use in the lean seed years. Successful storage to a large extent depends on maintaining seeds at are below critical moisture content (5%-9%) and storing at lower or below-freezing temperatures. Copyright.@ EM International.


Suresh Naik K.P.,University of Agricultural science | Suresh Naik K.P.,Organic Farming Research Center | Krishnamurthy N.,University of Agricultural science | Ramachandra C.,University of Agricultural science | Ramachandra C.,Zonal Agricultural Research Station
Indian Journal of Agronomy | Year: 2015

A field experiment was conducted during the rainy seasons of 2012 and 2013 at Zonal Agricultural Research Station, Mandya, to study the sources of nutrient on yield, methane emission, and water productivity of rice (Oryza sativa L.) under different methods of cultivation. Among the different methods of rice cultivation, system of rice intensification (SRI) method recorded higher water productivity (54.3 kg/ha-cm) than aerobic method (46.6 kg/hacm) and conventional method (29.9 kg/ha-cm) and resulted to the higher grain and straw yields of rice (8.55 and 10.07 t/ha) than the other methods of rice cultivation like conventional (7.05 and 8.38 t/ha) and aerobic method (6.48 and 7.83 t/ha). Among the sources of nutrients, application of recommended dose of fertilizer (100% N through neem-coated urea) recorded higher grain and straw yields (8.49 and 9.83 t/ha) over the other sources of nutrients, whereas the aerobic method of rice cultivation recorded lower methane emission (3.95 mg/plant/day) and total methane production (24.2 kg/ha) than SRI method (4.42 mg/plant/day and 28.1 kg/ha) and conventional method (6.25 mg/plant/day and 80.7 kg/ha) 90 days after sowing (DAS). Among the sources of nutrients, application of recommended dose of fertilizer (100% neem coated urea) recorded significantly lesser methane emission (4.35 mg/plant/day) and total methane production (37.9 kg/ha) than the other sources of nutrients but higher methane emission and production resulted by application of 50% N through paddy straw incorporation + 50% N through urea + recommended dose of P and K (5.56 mg/plant/day and 50.5 kg/ha) 90 days after sowing. © 2015, Indian Society of Agronomy. All rights reserved.


Naik K.P.S.,Organic Farming Research Center | Krishnamurthy N.,UAS | Ramachandra C.,UAS | Hareesh G.R.,AICRP on Weed Control | And 2 more authors.
Research on Crops | Year: 2015

A field experiment was conducted during kharif seasons of 2012 and 2013 at Zonal Agricultural Research Station, Mandya to study the effect of sources of nutrients on productivity, profitability and nutrient uptake of rice (Oryza sativa L.) under different methods of cultivation. The experiment was laid out in a split plot design with three different methods of rice cultivation as main plot i. e. conventional method, system of rice intensification (SRI) and aerobic method and sub-plot treatment as five sources of nutrients including both organic sources and inorganic sources and replicated thrice. Among the different methods of rice cultivation, aerobic method of rice cultivation recorded significantly lower methane emission (3.95 mg/plant/day) and total methane production (24.21 kg/ha) as compared to SRI method (4.42 mg/plant/day and 28.07 kg/ha) and conventional method (6.25 mg/plant/day and 80.68 kg/ha) at 90 days after sowing. Among sources of nutrients, application of RDF (100% neem coated urea) recorded significantly lesser methane emission (4.35 mg/plant/day) and total methane production (37.93 kg/ha) compared to other sources of nutrients but higher methane emission and production resulted by application of 50% N through paddy straw incorporation+50% N through urea+Rec. P & K (5.56 mg/plant/day and 50.45 kg/ha) at 90 DAS. Significantly higher water productivity recorded in SRI method of rice cultivation (54.37 kg/hacm) compared to conventional method (46.64 kg/ha) and aerobic method of rice cultivation (29.91 kg/ha-cm). Among sources of nutrients, RDF (100% neem coated urea) recorded significantly higher water productivity (50.40 kg/ha-cm) compared to other sources of nutrients but lower water productivity was recorded by application of 50% N through paddy straw incorporation+50% N through urea+Rec. P & K (36.30 kg/ha-cm).


Sunil C.,Organic Farming Research Center | Puttaiah E.T.,Gulbarga University | Somashekharappa P.R.,Organic Farming Research Center
Plant Archives | Year: 2012

Sugarcane pressmud is one of the important agro-industrial wastes available in India as well as Karnataka. About 2.736 million tones of pressmud is produced annually, which can serve as a vast store house of macro and micro nutrients apart from causing environmental pollution in the dumping yards of the sugar factories. An attempt is made in this study to evaluate different methods of composting with or without microbial culture. Results of this study indicates that among the different methods of composting studied NADEP method of composting with inoculants and enrichment has recorded significantly superior nutrient composition of 1.50±0.19, 1.00±0.91 and 0.83±0.05 percent nitrogen, phosphorus and potassium as compared to pit method of composting without any inoculation or enrichment. NADEP method was closely followed by Japan method of composting with inoculation and enrichment.


Sunil C.,Organic Farming Research Center | Puttaiah E.T.,Gulbarga University | Somashekharappa P.R.,Organic Farming Research Center | Khan H.S.I.,Organic Farming Research Center
Plant Archives | Year: 2012

Composting is one of the cheapest methods of utilizing the agro-industrial wastes to reduce pollution. Population dynamics of microbes during the process of composting changes with time and it is an indication of compost maturity. Composting of pressmud takes very long time as compared to other wastes as it contains very wide C:N ratio. Hence, attempts are needed to study the dynamics of microorganisms while composting. In this direction, an attempt is made in this study to know the changes in the population dynamics of microbes as influenced by different methods of composting with or without microbial culture. Results of this study indicates that there is progressive increase in the population of actinomycetes, N-fixers and Psoulblisers up to 60 days after composting and there is decreasing trend after 60 days after composting. Irrespective of the stages of composting higher number of actinomycetes, N-fixers and P-soulblisers were recorded in the NADEP method of composting with addition of compost culture as well as with enrichment followed by Japan method of composting with enrichment and inoculation.


Divya M.,Organic Farming Research Center | Raghunandan B.L.,Organic Farming Research Center | Srikanth C.D.,Organic Farming Research Center | Sreeramulu K.R.,UAS
Journal of Pure and Applied Microbiology | Year: 2015

Experiment was conducted to evaluate the effect of different fortified formulations on growth of maize and soybean grown under green house condition. microbial inoculants such as Azotobacter chroococcum, Bradyrhizobium japonicum, Bacillus megaterium and Acinetobacter calcoaceticus were fortified with the fortifying materials like Gibbrellic acid, PVP, PEG, glycerol, trehalose and ZnSO4. Optimum concentration of fortifying materials for each organism were determined and fortifying combinations was developed. The two best fortified combination were found to be C1 having GA3+PVP+PEG+ Glycerol+Trehalose and C2 having GA3+PVP+PEG+Glycerol. These two combinations were selected for development of liquid, carrier, alginate beads and pellet formulations then these formulations were tested on growth of maize and soybean under green house condition, the growth of maize and soybean were significantly influenced by the inoculation of fortified microbial inoculant formulations. Among the four different fortified formulations tested liquid fortified formulations showed better growth compared to other formulations. The next best were carrier, alginate beads and pellet formulations. The lowest plant growth was recorded in the control plants.


Harischandra Naik R.,Organic Farming Research Center | Devakumar N.,Organic Farming Research Center | Rao G.E.,Organic Farming Research Center | Vijaya N.,Organic Farming Research Center | And 2 more authors.
Journal of Biopesticides | Year: 2012

In organic farming production system, biopesticides like botanicals and mycopathogenic formulation are of greater importance in managing the pest population. The evaluation of botanicals and mycopathogenic formulation were tested for their efficacy against okra leafhopper, aphids and whitefly at Organic Farming Research Centre, Navile, Shivamogga during 2009. The performance of botanicals and mycopathogenic formulation against leafhopper revealed that the Neemazol @ 3.5% recorded 2.43 and 2.60 leafhoppers/3 leaves, Neem oil @ 2% recorded 2.63 and 3.50 leafhoppers/3 leaves and NSKE @ 5% recorded 3.53 and 4.00 leafhoppers / 3 leaves. These three treatments were found superior among botanicals and Beauveria bassiana @ 2.5 g / l recorded 2.5 and 3.6 leafhoppers/3 leaves and was on par with other mycopathogens at 10 DAS of first and second spray, respectively. Results on aphids and whitefly were recorded as follows: Neemazol @ 3.5% recorded 1.67 and 3.17 aphids/3 leaves and 2.00 and 2.63 whitefly/3 leaves, Neem oil @ 2% recorded 1.93 and 4.33 aphids/3 leaves and 2.17and 3.40 whitefly/3 leaves and NSKE @ 5% recorded 2.00 and 6.00 aphids/3 leaves and 3.00 and 4.00 whitefly/3 leaves at 10 DAS on the first and the second spray respectively and these were found superior among botanicals. Verticillium lecani @ 2.5 g/l showed 2.53 and 6.67 aphids/3 leaves and 2.80 and 3.53 whitefly/3 leaves at 10 DAS on the first and the second spray respectively and was on par with other mycopathogens. © JBiopest.

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