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 Soil microbial properties of subalpine steppe soils at different grazing intensities in the Chinese Altai Mountains

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sven Goenster-Jordan ◽  
Mariko Ingold ◽  
Ramia Jannoura ◽  
Andreas Buerkert ◽  
Rainer Georg Joergensen
Keyword(s):  
Microbial Biomass ◽  
Soil Properties ◽  
Block Design ◽  
Stocking Density ◽  
Grazing Intensity ◽  
Microbial Biomass C ◽  
Altai Mountains ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties

AbstractLong-term provision of ecosystem services by grasslands is threatened by increasing stocking densities. The functions of grassland ecosystems depend on a mutual relationship between aboveground and belowground biota. While the effects of increasing stocking density on plant biomass are well studied, little is known about its impact on soil microbial properties. To fill this knowledge gap a grazing experiment was conducted on a summer pasture in the Chinese Altai Mountains during the summers of 2014 and 2015 using a randomized block design with stocking densities of 0, 8, 16, and 24 sheep ha−1 replicated four times. After two summer grazing periods (each 56 days), topsoil samples (1–7 cm) were taken in September 2015 and analyzed for major physical, chemical, and microbial soil properties. Except for the metabolic quotient (qCO2; p < 0.05), the examined soil properties remained unaffected by the increasing stocking densities, likely due to high spatial variability. The qCO2 declined from 13.5 mg CO2–C g−1 microbial biomass C d−1 at zero grazing to 12.2 mg CO2–C g−1 microbial biomass C d−1 at a stocking density of 24 sheep ha−1. Low values of qCO2 indicate an aged and dormant microbial community that diverts less soil organic carbon (SOC) to catabolic processes within their cells, characteristic for C limiting conditions. The aboveground biomass affected by grazing intensity correlated positively with SOC (rs = 0.60, p = 0.015) and ergosterol (rs = 0.76, p = 0.001) pointing indirectly to the effect of stocking density. Additionally to the relatively high values of qCO2, highest values of SOC (39.2 mg g−1 soil), ergosterol (6.01 µg g−1 soil), and basal respiration (10.7 µg g−1 soil d−1) were observed at a stocking density of 8 sheep ha−1 indicating that a low grazing intensity is recommendable to avoid soil degradation.

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.

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 Effect of organic fertilizer and microbial inoculants on soil biological properties and yield of scented rice (Oryza sativa L.)

2018 ◽  
Vol 10 (3) ◽  
pp. 995-1002
Author(s):  
Amit Kumar Sah ◽  
Mahendra Singh ◽  
Amit Kumar Pradhan ◽  
Sambhu Prasad ◽  
N. Chatoopadhyaya ◽  
...  
Keyword(s):  
Grain Yield ◽  
Microbial Population ◽  
Foliar Application ◽  
Oryza Sativa L ◽  
Block Design ◽  
Organic Fertilizer ◽  
Biological Properties ◽  
Microbial Inoculants ◽  
Combined Application ◽  
Soil Microbial Population

A field experiment was conducted at Research farm of Bihar Agricultural University, Sabour (longitude 87o2’42”East and latitude 25o15?40? North at an altitude of 46 meters above mean sea level) with Katarni rice cv Bhagalpur Katarni during kharif season of 2017. The experiment with ten treatments was laid out in Randomized  block design (RBD)  with three  replications. Results revealed that among all the applied organic treatments the maximum microbial population viz., Bacteria, Actinomycetes, Fungi, Azospirillum, PSB and KSB (71.66, 27.33,  57.66, 43.66, 63.00 and 47.66 cfu × 105 g-1 oven dry soil) were recorded with the application of treatment T5 {(75 % N (FYM) basal + 25 % N (V/C) at 25 DAT + Azospirillum  @ 5 kg ha-1  + PSB @ 5 kg ha-1 + KSB @ 5 kg ha-1)} at panicle initiation stage  and similar trend were obtained at harvesting stage. Application of the same treatment significantly increased dehydrogenase activity by 81.62%, 10.80%, 24.86%, 15.66%, 17.83% and 18.91% when compared with application of T1 (RDF), T3 {(100 % N FYM) as basal)}, T7 {(100 % N (GM)}, T8 {(50 % N (GM) + 50 % N (V/C) at 25 DAT)}, T9 {(75 % N (GM) + 25 % N (V/C) at 25 DAT + Azospirillum @ 5 kg ha-1 + PSB @ 5 kg ha-1 + KSB @ 5 kg ha-1)} and  T10 {(75 % N (GM) + 25 % N (V/C) at 25 DAT + Panchagavya on foliar application )}, respectively. Among all organic treatments the maximum grain yield of paddy (27.39 q ha-1) was recorded in treatment T5 {(75 % N (FYM) basal + 25 % N (V/C) at 25 DAT + Azospirillum  @ 5 kg ha-1  + PSB @ 5 kg ha-1 + KSB @ 5 kg ha-1)}. Among all the organic inputs and microbial inoculants, the combined application of 75 % N (FYM) basal + 25 % N (V/C) at 25 DAT + Azospirillum @ 5 kg ha-1 + PSB @ 5 kg ha-1 + KSB @ 5 kg ha-1 was found to be effective in modifying the soil microbial population and microbial community structure and grain yield of scented rice.

Variation in soil biological properties with legume crops in arid region of Rajasthan, India

2015 ◽  
Vol 38 (6) ◽  
Author(s):  
B. K. Yadav
Keyword(s):  
Alkaline Phosphatase ◽  
Microbial Population ◽  
Rhizosphere Soil ◽  
Field Investigation ◽  
Biological Properties ◽  
Microbial Biomass C ◽  
Soil Microbial ◽  
Acid And Alkaline Phosphatase ◽  
Soil Biological Properties ◽  
Soil Microbial Population

A field investigation was carried out in five tehsils of Jodhpur district of Rajasthan, India to study the variation in soil biological properties. Acid phosphatase, alkaline phosphatase, phytase, microbial biomass C (MBC), N ( MBN) and P(MBP) ranged between 1.10-3.45 μg PNP /g soil / h, 2.45 -8.42 μg PNP / g soil / h, 4.15-12.42 μg Pi / g soil / h, 27-52 mg / kg, 5.7-10.9 mg / kg and 1.10-4.10 mg / kg, respectively. Microbial population was higher in the rhizosphere soil compared to non-rhizosphere soil with maximum in Jodhpur (12.85%) followed by Bhopalgarh (11.24%) and Osian (10.70%). In general, phytase activity in soil was 1.4 and 2.75 times higher compared to acid and alkaline phosphatase activities. On an average, the rhizosphere soils contain 12%, 11% and 15% more biomass C, N and P compared to non-rhizosphere soil. Microbial population showed positive and significant correlation with nutrient availability and microbial properties.

Effect of Integration of Fertilizers and FYM on Productivity and Soil Health of Rainfed Potato

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
S. K. YADAV ◽  
A. K. SRIVASTAVA ◽  
T. K. BAG
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Soil Health ◽  
Growth And Yield ◽  
Recommended Dose ◽  
Research Station ◽  
Yield Attributes ◽  
Hill Region ◽  
North Eastern ◽  
Synthetic Fertilizers

A field trial was conducted during two consecutive summer seasons of2012 and 2013 at ICAR-Central Potato Research Station, Shillong, Meghalaya to evaluate the integration of nutrient sources on productivity and soil health under rainfed potato cultivation in north eastern hill region of India. There were six treatments of integrated nutrient management viz., 100% Recommended dose of fertilizers,75% RDF through synthetic fertilizers and 25% recommended dose of nitrogen (RDN) through FYM, 50% RDF and 50% RDN through FYM, 25% RDF and 75% RDN through FYM, 100% RDN through FYM and control (no application of any sources of nutrients). The experiment was laid out in randomized block design with four replications. Nutrient management practices showed the significant improvement on growth and yield attributes of potato over control plot. Highest productivity of potato tubers (t/ha) was noticed with application of 75% RDF through synthetic fertilizers along with 25% RDN through FYM. Similarly, the maximum net return was associated with application of 75% RDF and 25% RDN through FYM under investigation. Application of 75% Recommended dose of nutrients through synthetic fertilizers in combination with 25% Recommended dose of nitrogen through FYM was more profitable for sustainable production of potato in the north eastern hill region of India.

scholarly journals Disentangling the ‘brown world’ faecal-detritus interaction web: dung beetle effects on soil microbial properties

Oikos ◽  
2015 ◽  
Vol 125 (5) ◽  
pp. 629-635 ◽  
Author(s):  
Eleanor M. Slade ◽  
Tomas Roslin ◽  
Minna Santalahti ◽  
Thomas Bell
Keyword(s):  
Dung Beetle ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties ◽  
Interaction Web

scholarly journals Effects of crop type on soil microbial properties in the cropland of the Jianghan plain of China

2018 ◽  
Vol 64 (No. 9) ◽  
pp. 421-426
Author(s):  
Li Jun ◽  
Liu Lixin ◽  
Zhang Chunlei ◽  
Chen Chang ◽  
Lu Guangyuan ◽  
...  
Keyword(s):  
Triticum Aestivum L ◽  
Invertase Activity ◽  
Shannon Index ◽  
Available Phosphorus ◽  
Jianghan Plain ◽  
Brassica Napus L ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Available Phosphorus ◽  
Soil Microbial Properties

Soil microbial properties are varied by growing different crops, ultimately reflecting the growth and reproduction of crops. In this study, two types of oilseed rape (Brassica napus L. ZS11 and ZY821) and wheat (Triticum aestivum L. ZM9023) were planted in the Jianghan plain of China. Rhizosphere soil samples were collected three months after sowing. Soil physicochemical properties, enzyme activities and microbial diversity were determined. The results showed that soil available phosphorus significantly increased from 25.57 mg/kg (ZM9023) to 33.20 mg/kg (ZS11) and 35.72 mg/kg (ZY821), respectively. Invertase activity of ZS821 (0.86 mg glucose/g) was significantly lower than in ZS11 (1.04 mg glucose/g). Acid phosphatase activity under planting rapes was significantly higher than that under wheat. Urease activities significantly increased from 40.88 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (NFP) to 49.04 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (FNP) and 51.28 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZM9023), 51.60 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZY821) and 52.28 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZS11), respectively. The ACE (abundance based coverage estimator) and Chao1 indexes of bacteria of ZS11 were lower than ZY821, which were similar to ZM9023. Fertilization increased soil bacterial ACE and Chao1 indexes. However, ACE and Chao1, Shannon and Simpson indexes of soil fungi for ZS11 were significantly higher than in ZY821, which were similar to ZM9023 (except for the Shannon index).

scholarly journals Convergence of soil microbial properties after plant colonization of an experimental plant diversity gradient

BMC Ecology ◽  
2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Katja Steinauer ◽  
Britta Jensen ◽  
Tanja Strecker ◽  
Enrica de Luca ◽  
Stefan Scheu ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Plant Colonization ◽  
Experimental Plant ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Diversity Gradient ◽  
Soil Microbial Properties
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