scholarly journals Vermicomposting potential and plant nutrient contents in rice straw vermicast of Perionyx excavatus and Eudrilus eugeniae

2012 ◽  
Vol 7 (42) ◽  
pp. 3639-3645 ◽  
Author(s):  
Yi Wei Yan ◽  
Azwady Abd Aziz Nor ◽  
Hj Shamsuddin Zulkifli ◽  
Mustafa Muskhazli ◽  
Abd Aziz Suraini ◽  
...  
Keyword(s):  
Rice Straw ◽  
Plant Nutrient ◽  
Eudrilus Eugeniae ◽  
Perionyx Excavatus ◽  
Nutrient Contents

Enhancement of Plant Nutrient Contents in Rice Straw Vermicompost through the Addition of Rock Phosphate

2012 ◽  
Vol 1 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Yi Wei Yan ◽  
Nor Azwady Abd Aziz ◽  
Zulkifli H. Shamsuddin ◽  
Muskhazli Mustafa ◽  
Suriani Abd-Aziz ◽  
...  
Keyword(s):  
Rice Straw ◽  
Rock Phosphate ◽  
Plant Nutrient ◽  
Nutrient Contents

scholarly journals Nutrient Status of Vermicompost of Urban Green Waste Processed by Three Earthworm Species—Eisenia fetida, Eudrilus eugeniae,andPerionyx excavatus

2010 ◽  
Vol 2010 ◽  
pp. 1-13 ◽  
Author(s):  
Swati Pattnaik ◽  
M. Vikram Reddy
Keyword(s):  
Eisenia Fetida ◽  
Nutrient Status ◽  
Physical Parameters ◽  
Eudrilus Eugeniae ◽  
Perionyx Excavatus ◽  
Nutrient Contents ◽  
Urban Green ◽  
Green Waste ◽  
Earthworm Species ◽  
Vegetable Market Waste

Major nutrient status of vermicompost of vegetable market waste (MW) and floral waste (FW) processed by three species of earthworms namely,Eudrilus eugeniae, Eisenia fetida, andPerionyx excavatusand its simple compost were assessed across different periods in relation to their respective initiative substrates. Their physical parameters—temperature, moisture, pH, and electrical conductivity—were also recorded. The nutrients—nitrogen, phosphorus, potassium, calcium, and magnesium—increased in the vermicompost and compost while the organic carbon, C/N and C/P ratios decreased as the composting process progressed from 0 to 15, 30, 45, and 60 days. The nutrient statuses of vermicomposts of all earthworm species produced from both the wastes were more than that of the compost and that of their respective substrates. Moreover, the vermicompost produced byE. eugeniaepossessed higher nutrient contents than that ofE. fetida, P. excavatus, and compost. The MW showed higher nutrient contents than the FW. Thus, vermicomposting is the paramount approach of nutrient recovery of urban green waste.

Feasibility of Eudrilus eugeniae and Perionyx excavatus in vermicomposting of water hyacinth

2016 ◽  
Vol 94 ◽  
pp. 127-135 ◽  
Author(s):  
V. Sudharsan Varma ◽  
Ajay S. Kalamdhad ◽  
Meena Khwairkpam
Keyword(s):  
Water Hyacinth ◽  
Eudrilus Eugeniae ◽  
Perionyx Excavatus

scholarly journals Plant–herbivore–decomposer stoichiometric mismatches and nutrient cycling in ecosystems

2013 ◽  
Vol 280 (1754) ◽  
pp. 20122453 ◽  
Author(s):  
Mehdi Cherif ◽  
Michel Loreau
Keyword(s):  
Nutrient Availability ◽  
Conceptual Models ◽  
Nutrient Content ◽  
Major Influence ◽  
Plant Nutrient ◽  
Nutrient Contents ◽  
Nutrient Excretion ◽  
Plant Herbivore ◽  
The Impact ◽  
The Relationship

Plant stoichiometry is thought to have a major influence on how herbivores affect nutrient availability in ecosystems. Most conceptual models predict that plants with high nutrient contents increase nutrient excretion by herbivores, in turn raising nutrient availability. To test this hypothesis, we built a stoichiometrically explicit model that includes a simple but thorough description of the processes of herbivory and decomposition. Our results challenge traditional views of herbivore impacts on nutrient availability in many ways. They show that the relationship between plant nutrient content and the impact of herbivores predicted by conceptual models holds only at high plant nutrient contents. At low plant nutrient contents, the impact of herbivores is mediated by the mineralization/immobilization of nutrients by decomposers and by the type of resource limiting the growth of decomposers. Both parameters are functions of the mismatch between plant and decomposer stoichiometries. Our work provides new predictions about the impacts of herbivores on ecosystem fertility that depend on critical interactions between plant, herbivore and decomposer stoichiometries in ecosystems.

scholarly journals Effect of magnesium fertilization on yield and nutrient status of rice in kole lands

2021 ◽  
Vol 58 (4) ◽  
pp. 525-529
Author(s):  
Latha A ◽  
Chijina K ◽  
Asha V Pillai
Keyword(s):  
Field Experiments ◽  
Block Design ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Nutrient Content ◽  
Plant Nutrient ◽  
Yield Attributes ◽  
Nutrient Contents ◽  
Pooled Data ◽  
Randomized Block Design

The field experiments were conducted in farmer's field at five locations each of kole lands to study the effect of Magnesium (Mg) on yield and soil and plant nutrient status of rice during 2012-2013 and 2013-2014. The experiment was laid out in randomized block design with three replications. The treatments comprised of different levels of Mg viz; 40, 60, 80, 100, and 120 kg Magnesium sulphate(MgSO4)/ha along with control. Observations on growth characters yield attributes, yield and soil and plant nutrient status were recorded. The results revealed that application of 100 kg MgSO4 / ha recorded the maximum number of panicles/m2 (419.13), number of grains/panicle (109.36), thousand grain weight (28.78 g), grain (9.27 t/ha) and straw yield (9.04 t/ha) of rice. The results of pooled data on plant and soil nutrient status revealed that application of magnesium had a positive effect on nutrient content and availability of nutrients in soil. A significant positive correlation was also noticed between Mg application, yield attributes, yield and nutrient contents. The study concluded that application of 100 kg MgSO4 / ha was found to be optimum for correcting the deficiency in Mg deficient areas of kole lands under below sea level farming.

scholarly journals Wastewater from Washed Rice Water as Plant Nutrient Source: Current Understanding and Knowledge Gaps

2021 ◽  
Vol 29 (3) ◽  
Author(s):  
Nabayi Abba ◽  
Christopher Teh Boon Sung ◽  
Tan Ngai Paing ◽  
Ali Tan Kee Zuan
Keyword(s):  
Plant Growth ◽  
Brown Rice ◽  
Current Understanding ◽  
Plant Nutrient ◽  
Nutrient Source ◽  
Water Spinach ◽  
Major Drawback ◽  
Nutrient Contents ◽  
Rice Water ◽  
Soil Microbial Population

A significant wastewater source in every household is washed rice water (WRW) because it contains leached nutrients (from washing the rice prior to cooking) that could be used as fertilizer. The paper reviewed the current understanding of the potential use of WRW as a plant nutrient source. WRW was shown to increase vegetables growth, such as water spinach, pak choy, lettuce, mustard, tomato, and eggplant. Different researchers have used various amounts of WRW, and their results followed a similar trend: the higher the amount of WRW, the higher the plant growth. WRW has also been used for other purposes, such as a source of carbon for microbial growth. WRW from brown rice and white rice had nutrients ranging from 40-150, 43-16306, 51-200, 8-3574, 36-1425, 27-212, and 32-560 mg L-1 of N, P, K, Ca, Mg, S, and vitamin B1 (thiamine), respectively. Proper utilization of WRW could reduce chemical fertilizer use and prevent both surface and groundwater contamination and environmental pollution. However, only a few of the studies have compared the use of WRW with the use of conventional NPK fertilizer. The major drawback of WRW studies is that they lack depth and scope, such as determining the initial and (or) final soil physico-chemical properties or plant nutrient contents. Considering the rich nutrient content in WRW, it will impact plant growth and soil fertility when used as both irrigation water and plant nutrient source. Therefore, it is recommended that studies on WRW effect on soil microbial population, plant, and soil nutrient contents to be carried out to ascertain the sustainability of WRW use as a plant nutrient source.

scholarly journals Metagenomic Exploration of Bacterial Community Structure of Earthworms’ Gut

2021 ◽  
Author(s):  
Samrendra Singh Thakur ◽  
Azhar Rashid Lone ◽  
Nalini Tiwari ◽  
Subodh Kumar Jain ◽  
Shweta Yadav
Keyword(s):  
Community Structure ◽  
Bacterial Community ◽  
Gut Microbiota ◽  
Bacterial Community Structure ◽  
Alpha Diversity ◽  
Eudrilus Eugeniae ◽  
Phenotypic Analysis ◽  
Perionyx Excavatus ◽  
Gram Negative ◽  
Earthworm Species

Living organisms are naturally bestowed with unique and imitable qualities for maintaining ecological balance and earthworms are no exceptions. These so-called keystone species of terrestrial ecosystems are equipped with wonderful machinery, allowing them to nurture soil beautifully. Earthworm gut represents a potential microbial reservoir, having a complex interdependence with the host. The study aimed to profile bacterial community structure of three earthworm species belonging to two different life forms; Perionyx excavatus and Eudrilus eugeniae (epigeic), Polypheretima elongata (endogeic) respectively. Diversity analysis using 16S amplicon sequencing revealed that the dominant phyla were Proteobacteria (34.17-77.88) followed by Actinobacteria (13.43-35.54%), Firmicutes (1.69-15.45%) and Bacteroidetes (0.51-8.12%). The alpha diversity indices explicit similar gut microbiota of Perionyx excavatus and Eudrilus eugeniae and while higher alpha diversity was recorded in comparison to Polypheretima elongata gut. The taxonomic to the phenotypic annotation of 16S rRNA metagenomes revealed that dominance of Gram-negative bacterial community in all earthworm species while, Polypheretima elongata comprises higher percentage (78%) of Gram-negative bacterial community to Perionyx excavatus (32.3%) and Eudrilus eugeniae (38.3%). The oxygen requirement phenotypic analysis showed that all earthworm species were abundant with aerobic followed by anaerobic bacterial groups. Furthermore, functional metabolism phenotypic analysis revealed that a high abundance of ammonia oxidizers (29.3-80.2%), the gut microbiomes showed the relative abundance of sulphate reducer (22.6-78.7%), nitrite reducer (19.8-73.2%), dehalogenators (12.6-25.1%), illustrating in the role of these microbial communities in various degradation and bioremediation processes. The present study signifies the intrinsic gut microbiota of earthworm species for intensified biodegradation.

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