Abstract:HighlightsManagement of terrestrial weeds is one of the key concerns in world wide.These noxious weeds participate with crops with their natural resources.Terrestrial weeds can be managed by anaerobic digestion and vermicomposting.Most of these weeds contain high lignin.Pretreatment is required to further recovery of energy.
“…The following species of earthworms Eisenia eugeniae, Eisenia foetida, Eisenia Andrei, Eudrilus eugeniae and Lumbricus rubellus are most frequently used for the vermicomposting (Amossé et al 2013;Soobhany et al 2015;Saha et al 2018). In comparison with the common composts the vermicompost contain predominantly higher quantities of nutrients in the total and also in available forms (Van Groenigen et al 2014;Vos et al 2014;Goswami et al 2017).…”
In Slovakia more than a half of the landfill‘s waste consist of the biodegradable waste (BDW). Therefore the BDW composting can decrease significantly the production of the landfill gas as well as the financial and space requirements for landfills. However, the composts production have to be solved comprehensively, including their rational usage. In Slovakia the use of composts is ineffective if the location of their production is farther than 50 km, because of the high tranportation costs. The objective of the experiments was to determine the ratio of vermicompost in the soil growing medium in order not to decrease the yield quantity and quality of radish - the most commonly grown vegetable in the gardens in Slovakia. Five shares of vermicompost were tested in the soil substrate (0%, 10%, 20%, 25% and 50%). The results show that 50% share of vermicompost in the soil substrate, i.e. the ratio of vermicompost to soil 1:1, was not the optimal solution of the vermicompost usage. However, even this quantity of vermicompost did not have a negative impact on the weight of the aboveground and underground phytomass in comparison with the treatment without vermicompost. 50% share of vermicompost in the growing medium had the negative impact on the qualitative parameters of radish. It decreased the content of vitamin C and increased the content of nitrates in radish roots and leaves. Along with the higher share of vermicompost in the growing medium, the content of vitamin C was decreased in radish roots and leaves, and the content of nitrates in radish roots was increased. The roots of the biggest diameter, and consequently the highest yield of radish roots and leaves was formed in the treatment where the soil substrate consisted of four portions of soil and one p ortion of vermicompost (20% proportion of vermicompost).
“…The following species of earthworms Eisenia eugeniae, Eisenia foetida, Eisenia Andrei, Eudrilus eugeniae and Lumbricus rubellus are most frequently used for the vermicomposting (Amossé et al 2013;Soobhany et al 2015;Saha et al 2018). In comparison with the common composts the vermicompost contain predominantly higher quantities of nutrients in the total and also in available forms (Van Groenigen et al 2014;Vos et al 2014;Goswami et al 2017).…”
In Slovakia more than a half of the landfill‘s waste consist of the biodegradable waste (BDW). Therefore the BDW composting can decrease significantly the production of the landfill gas as well as the financial and space requirements for landfills. However, the composts production have to be solved comprehensively, including their rational usage. In Slovakia the use of composts is ineffective if the location of their production is farther than 50 km, because of the high tranportation costs. The objective of the experiments was to determine the ratio of vermicompost in the soil growing medium in order not to decrease the yield quantity and quality of radish - the most commonly grown vegetable in the gardens in Slovakia. Five shares of vermicompost were tested in the soil substrate (0%, 10%, 20%, 25% and 50%). The results show that 50% share of vermicompost in the soil substrate, i.e. the ratio of vermicompost to soil 1:1, was not the optimal solution of the vermicompost usage. However, even this quantity of vermicompost did not have a negative impact on the weight of the aboveground and underground phytomass in comparison with the treatment without vermicompost. 50% share of vermicompost in the growing medium had the negative impact on the qualitative parameters of radish. It decreased the content of vitamin C and increased the content of nitrates in radish roots and leaves. Along with the higher share of vermicompost in the growing medium, the content of vitamin C was decreased in radish roots and leaves, and the content of nitrates in radish roots was increased. The roots of the biggest diameter, and consequently the highest yield of radish roots and leaves was formed in the treatment where the soil substrate consisted of four portions of soil and one p ortion of vermicompost (20% proportion of vermicompost).
“…This growth pattern might be beneficial and less of a concern for resource partitioning by growing sunn hemp in a cover cropping system alongside others. For instance, certain cover crops are known to have allelopathic effects which can hamper the growth of neighboring plants or voluntary plants (e.g., weed species) in the vicinity of the allelopathic plant [46,47].…”
Manipulating cover crops as an integrated pest management strategy has recently gained popularity in both traditional and organic agroecosystems. However, little information is available for producers to make informed decisions about cover crop selection, management, and their potential use as a pest management tool. To address this, we conducted a two-year, four-season field experiment on the potential of various cover crops during the summer seasons of both years, followed by monocultures of cash crops during winters. We hypothesized that the cover crop treatments would attract beneficial insects and repel damaging herbivores in a species-specific manner, and the insect community dynamics would be bridged to the cash crops in the subsequent season. In addition, we hypothesized that cash crops would suffer lower herbivory damage following specific cover crop treatments. Our design comprised of three cover crops. Our results indicate that cover crops support beneficial insects during the early summer season, while the time of growing season doesnot affect herbivore abundance. Crop-specific effects were found for herbivore abundance with possible cascading effects on insect community as well as damage levels on the subsequent cash crop, but without any impact on the growth traits of the cash crop. Together, our data suggest that cover crops, when carefully selected, can be an integral part of a pest management strategy for sustainable agriculture.
“…For controlling the invasive weeds, mechanical, chemical and biological methods have been used where each method is having its own drawbacks and requires heavy investment (Sudhakar Reddy et al, 2008). As far as the biological control methods are concerned, utilization of weed biomass for compost and vermicompost preparation has been suggested (Negi et al, 2019;Saha et al, 2018). In the present qualitative study, major invasive alien weeds in Salem District, Tamil Nadu, India, their threat to biodiversity and ecosystem balance along with the possible role of vermicomposting in utilizing invasive weed biomass have been discussed.…”
The introduction of indigenous or exotic weeds to the habitats outside their native range and their successful colonization is defined as biological invasion which ultimately poses threat to economy, environment and biodiversity. In the present study, the invasive plant species with special reference to the invasive plants in Salem District, Tamil Nadu, India and the possible threat to the local biodiversity by their invasion has been investigated. The study focused the rapid spread of invasive weeds, Alternanthera ficoidea (L.) P. Beauv., Alternanthera philoxeroides (Mart.) Griseb., Chromolaena odorata (L.) R.M.King & H.Rob., Ipomoea staphylina Roem. & Schult., Lantana camara L., Parthenium hysterophorus L. and Sesamum alatum Thonn. In view of the biodiversity threat by these invasive weeds, possible utilization of weedbiomass through vermicomposting is addressed.
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