scholarly journals Dynamics of Soil Microbial Population and Enzymes Activities under Distillery Spentwash Irrigation

2019 ◽  
pp. 1-8
Author(s):  
Karthika Vadivel ◽  
G. Rajannan ◽  
S. Avudainayagam
Keyword(s):  
Field Experiment ◽  
Microbial Population ◽  
Block Design ◽  
Growth Period ◽  
Recommended Dose ◽  
Treatment Schedule ◽  
Soil Enzymatic Activity ◽  
Soil Microbial ◽  
Distillery Spentwash ◽  
Soil Microbial Population

Spentwash is a rich source of organic matter and nutrients like nitrogen, phosphorus, potassium, calcium and sulphur. The effect of different levels and methods of spentwash application on soil enzymatic activity was examined through a field experiment. The field experiment was conducted using Sesame VRI (Sv) 2 as a test crop at Research and Development Farm, The Sakthi Sugars Pvt. Ltd., Appakkudal, Erode District. The experiment was formulated with six treatments with four replications, laid out in Randomised Block design. As per the treatment schedule the calculated quantity of biomethanated distillery spentwash for pre-sown application was uniformly applied to the plots before sowing viz., 25, 50, 75,100% along with recommended dose of NP for four treatments viz., 100%, 75%, 50%, 25% and Recommended dose NPK was treated as one treatment (control).The soil samples were collected at 30 days intervals and analysed for the changes in soil microbial population and enzyme activities. The results of the study showed that the microbial population and enzymatic activities of the soil were substantially increased throughout the crop growth period due to biomethanated distillery spentwash application.

Effect of Biomethanated Spent Wash on Enzymatic Activities under Irrigated Condition

2017 ◽  
Vol 104 (4 - 6) ◽  
Author(s):  
Karthika Vadivel ◽  
◽  
Thangavel P ◽  
Avudainayagam S ◽  
Rajannan G ◽  
...  
Keyword(s):  
Block Design ◽  
Growth Period ◽  
Enzymatic Activities ◽  
Recommended Dose ◽  
Treatment Schedule ◽  
Soil Enzymatic Activity ◽  
Randomized Block Design ◽  
Rich Liquid ◽  
Distillery Spentwash ◽  
Absolute Control

The biomethanated distillery spentwash is a nutrient rich liquid organic waste obtained from molasses based distillery industries after biomethanation process. The effect of different levels and methods of spentwash application on soil enzymatic activity was examined through a field experiment using sesame c.var.VRI (Sv) 2 as the test crop at Research and Development Farm, The Sakthi Sugars Pvt. Ltd., Appakkudal, Erode District. The experiment was formulated with six treatments with four replications and laid out in a randomized block design. As per the treatment schedule, the calculated quantity of biomethanated distillery spentwash (DSW) was uniformly applied to the plots @ 25, 50, 75 and 100 % along with recommended dose of NP (19.4, 25.2, 58.3 and 77.77 L, respectively) before sowing as pre-sown application. In addition, one absolute control and a treatment with recommended dose of NPK (35:23:23 kg NPK/ha) have been imposed for comparison. The soil samples were collected at 30 d intervals and analyzed for the changes in soil enzyme activities. The results of the study showed that the enzymatic activities of the soil were substantially increased throughout the crop growth period due to biomethanated DSW application, compared to check. However, application of 100 % N through DSW (77.77 L/1200 m2) and 75 % N through DSW + 25 % N through inorganic source (58.3 L/1200 m2) was found to be significantly superior by increasing the activities of phosphatase (15.07 μg p-nitrophenol g-1 soil h-1), dehydrogenase (29.92 μg TPF g -1 soil h-1 ) and urease (10.97 μg NH4-N g-1 soil h-1), respectively.

scholarly journals Impact of foliar application of different nano-fertilizers on soil microbial properties and yield of wheat

2021 ◽  
Vol 42 (2) ◽  
pp. 302-308
Author(s):  
R.H. Meena ◽  
◽  
G. Jat ◽  
D. Jain ◽  
◽  
...  
Keyword(s):  
Microbial Population ◽  
Foliar Application ◽  
Block Design ◽  
Recommended Dose ◽  
Microbial Biomass C ◽  
Yield Attributes ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties ◽  
Soil Microbial Population

Aim: The present investigation was carried out to study the effect of foliar application nano-fertilizers P, K and Zn on yield, nutrient content and uptake by wheat and soil microbial properties in sub-humid southern plains of Rajasthan. Methodology: The experiment was laid out in triplicate following randomized block design with fifteen treatments comprising foliar application of different doses of Nano P, K and Zn. Results: Foliar application of 1st spray of Nano Zn at 14 days after sowing (DAS) + 2nd spray of Nano Zn at 28 DAS along with 100% recommended dose of fertilizers (RDF) significantly (P=0.05) increased yield attributes and nutrient uptake in wheat. The significantly (P=0.05) maximum microbial population (bacteria and fungi) and microbial biomass-C was obtained with 1st spray of Nano P at 14 DAS + 2nd spray of Nano P at 28 DAS along with 100% recommended dose of fertilizers (RDF). Interpretation: Foliar application of nano fertilizers led to significant improvement of crop productivity of wheat in sub-humid southern plain of Rajasthan. Moreover, the foliar application of nano-fertilizers, i.e., Nano P also stimulated microbial growth by providing nutrients and directly increased their population in soil. Key words: Biomass-C, Foliar application, Nano-fertilizers, Soil microbial population, Wheat productivity

scholarly journals Rhizosphere Microbial Population and Plant Species Diversity as Influenced by Chromolaena odorata Invasion

2018 ◽  
Vol 6 (4) ◽  
pp. 36
Author(s):  
Solomon A. Adejoro ◽  
Lekan C. Aguda
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Microbial Population ◽  
Block Design ◽  
Plant Species Diversity ◽  
Soil Microbiome ◽  
Native Plant ◽  
Chromolaena Odorata ◽  
Soil Microbial ◽  
Soil Microbial Population

Invasive plant species have been commonly implicated to cause loss in plant species diversity. Attention had however not been paid to the effects of these species loss on the soil microbiome. A study was conducted in 18 farmers’ fields within three states in southwestern Nigeria to examine the effect of Siam weed (Chromolaena odorata) invasion on native plant diversity as well as on the rhizosphere microbial population using randomized complete block design. Results indicated significant losses in plant species diversity and reduction in density per square meter compared with adjacent non infested fields. Results further showed C. odorata invasion exerted diverse influence on soil microbial population. Relationships were subsequently established among plant density, species diversity; and soil microbial population. Further studies were also recommended to accommodate more microbiological indices.

scholarly journals Carbon and Microbial Dynamics in Soil on Biochar Compost Plus Treatment

2020 ◽  
Vol 17 (2) ◽  
pp. 138-143
Author(s):  
Wahyu Purbalisa ◽  
Ina Zulaehah ◽  
Dolty Melyga W. Paputri ◽  
Sri Wahyuni
Keyword(s):  
Soil Carbon ◽  
Microbial Population ◽  
Organic Fertilizer ◽  
Organic Soil ◽  
Microbial Consortia ◽  
Soil Microbial ◽  
Randomized Design ◽  
Soil Microbial Population ◽  
Compost Treatment ◽  
Screen House

Carbon and microbes in the soil fluctuated from time to time due to various things. This study aims to determine the dynamics of carbon and microbes in the soil in the treatment of biochar-compost. In addition to the use of biochar-compost, this research also uses nano biochar and enrichment with microbial consortia. The study was conducted at the screen house using a complete randomized design with three replications with following treatments: control / without organic fertilizer (P0), compost (P1), biochar-compost 1: 4 (P2), nano-biochar-compost 1: 4 (P3 ), biochar-compost + microbial consortia (P4), compost + microbial consortia (P5) and biochar-compost + microbial consortia (P6) with a dose of 2.5 tons/ha respectively. Biochar comes from corncobs. Compost biochar plus application was made before planting.  Parameters observed were soil carbon (C-organic), soil acidity (pH) at 7 DAA, 37 DAA and after harvest, and the total soil microbial population at 2 DAA and after harvest. Soil carbon was measured using Walkey and Black method measured by spectrophotometer, soil pH using a soil: water ratio = 1: 5 and measured by a pH meter, the total microbial population using Total Plate Counting (TPC) method. The results showed carbon and soil microbial populations decreased over time, except for microbial communities in a single compost treatment.

Modelling of microbial processes that govern degradation of organic substrates in soil, with special reference to pesticides

1990 ◽  
Vol 329 (1255) ◽  
pp. 369-373 ◽  
Keyword(s):  
Microbial Population ◽  
Large Fraction ◽  
Organic Substrates ◽  
High Concentration ◽  
Deterministic Models ◽  
Soil Microbial ◽  
Low Concentrations ◽  
Biokinetic Parameters ◽  
Soil Microbial Population ◽  
Kinetics Of

We tried to develop deterministic models for kinetics of 2,4-D breakdown in the soil based on the following considerations: (i) at low concentrations degradation results from maintenance consumption by a large fraction of the soil microbial population; (ii) at high concentration in addition to the maintenance consumption there is a growth-associated carbon incorporation by a small specific microbial population. Values for the biokinetic parameters are consistent with those commonly found in the literature. Comparison between observed and simulated curves suggests that a non-negligible part of the pesticidal carbon exists as microbial by-products.

Sign in / Sign up

Export Citation Format

Share Document