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Article ; Online: Effect of humic acid on soil properties and crop production– A review

POOJA BHATT / V K SINGH

The Indian Journal of Agricultural Sciences, Vol 92, Iss

2022 Volume 12

Abstract: Many studies have been made in recent years to improve the quality and increase the quantity of agricultural yield. Mechanization and novel hybrid seeds are not the only factors contributing to agricultural advancement and progress; soil quality also ... ...

Abstract	Many studies have been made in recent years to improve the quality and increase the quantity of agricultural yield. Mechanization and novel hybrid seeds are not the only factors contributing to agricultural advancement and progress; soil quality also plays an important role. It is common for soils that lack organic matter to be unfit for plant growth. Humic compounds have begun to be added to soil in different regions of the world to address this issue and boost agricultural yields. Nowadays, humic acid (HA) is available in different forms (powder, granule, liquid & flakes) in the market and can be applied to crops or soil by various techniques, i.e. soil application, foliar application, seed treatment, root dipping, through drip irrigation and along with inorganic fertilizers but soil application is found most effective in numerous studies. To know the optimum dose of the humic acid, various studies were conducted on crops and discovered a positive response in yield attributed to character, yield, and soil properties. This review enlightens the relevance of humic acid on different crops and soil health, and boosts agricultural productivity.
Keywords	Crop production ; Extraction ; Humic acid – genesis ; Soil properties ; Agriculture ; S
Subject code	630
Language	English
Publishing date	2022-12-01T00:00:00Z
Publisher	Indian Council of Agricultural Research
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Morpho-physiological studies associated with flowering in high-density planted guava (Psidium guajava)

P H NIKUMBHE / J UCHOI / V K SINGH

The Indian Journal of Agricultural Sciences, Vol 91, Iss

2022 Volume 12

Abstract: The study was carried out to know the mechanism of less or no flowering in well maintained high-density planted (CHDP) guava (Psidium guajava L.) orchard (2 m Ã— 2 m) during 2014 and 2015. Biochemical parameters determine flowering and fruiting in high- ... ...

Abstract	The study was carried out to know the mechanism of less or no flowering in well maintained high-density planted (CHDP) guava (Psidium guajava L.) orchard (2 m Ã— 2 m) during 2014 and 2015. Biochemical parameters determine flowering and fruiting in high-density planted guava orchard of 15 years old. Maximum length (17.48 cm), diameter (3.68 mm) of shoot and number of leaves pair (5.49) per shoot were found in flowering plants; highest leaf area (32.20 cm2) was observed in non-flowering plants. With respect to biochemical parameters, total chlorophyll (5.05 mg/g), chlorophyll a (3.02 mg/g), chlorophyll a (2.03 mg/g), total sugars (15949.57 Î¼g/g dry wt.), starch in leaves (2361.50 Î¼g/g dry wt.) and roots (2024.45 Î¼g/g dry wt.) were highest in matured leaves of flowering plants. Whereas, mature leaves of flowering plants of guava showed lowest Chlorophyll a: b ratio (1.58 mg/g). Anthocyanin content was highest (0.052 mg/g) in the immature leaves of flowering plants. Similarly, Chlorophyll b content in leaf was found less (0.72 mg/g) in the non-flowering plant compared to a flowering plant. Allahabad Safeda and L-49 cultivars are better among the four cultivars in such phenomenon of in bearing level of old guava orchard. Relevant information got in the study of Chlorophyll b, which indirectly plays important role in flowering and fruiting. Chlorophyll b increases the range of light, which is used by the plant for producing energy.
Keywords	Anthocyanin ; Chlorophyll ; Flowering ; Guava ; High-density planting ; Agriculture ; S
Subject code	580
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Indian Council of Agricultural Research
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: PVA biopolymer-acidic functionalized graphene hybrid nano composite for vibration isolation application

Pradeep Sati / Akarsh Verma / Anuz Zindal / Sakshi Chauhan / V. K. Singh

Chemical Physics Impact, Vol 6, Iss , Pp 100212- (2023)

An experimental approach with variable reflux and vacuum timings

2023

Abstract: In this research work, polyvinyl alcohol (PVA)-graphene (Gr) nano composite films were fabricated by incorporating the functionalized graphene (f-Gr) for different periods of refluxing and vacuum oven time. The graphene particles were functionalized ... ...

Abstract	In this research work, polyvinyl alcohol (PVA)-graphene (Gr) nano composite films were fabricated by incorporating the functionalized graphene (f-Gr) for different periods of refluxing and vacuum oven time. The graphene particles were functionalized through nitric acid (HNO3). Various tests were conducted to estimate the properties and characteristics of this composite. Fourier transform infrared spectroscopy (FTIR) results confirm the bonds of carboxyl, hydroxyl and carbonyl groups, manifested of functionalization of graphene. Scanning electron microscopy was performed to investigate morphology and transparency of f-Gr nano-particles in nano-composite films. Water absorption test was carried out to evaluate water absorption (%) in the PVA based composite films. The result revealed that water absorption rate of the composite decreased with increasing refluxing time at constant vacuum oven time of f-Gr reinforced composite. Dynamic mechanical analysis (DMA) showed that the value of storage modulus was higher for PVA-f-Gr nano-composite films compared to neat PVA and PVA-Gr composite over the entire range of temperature, which lead to explore this composite material for the vibration isolation applications. Glass transition state (Tg), loss modulus and the damping factor (tan δ) of the PVA-f-Gr nano composites films were highly affected by the addition f-Gr nano crystals in the PVA matrix. The value of tan δ for f-Gr nano composite is obtained both higher as well as lower compared to PVA-Gr film for the varying vacuum oven time and refluxing time. Electrical analysis indicates an enhancement in conductivity of PVA with introduction of f-Gr nano particles. After evaluating the high damping characteristics of this composite, the authors perceive that it may be utilized to reduce noise transmission and as a shock absorber vibration isolator.
Keywords	Graphene ; Polyvinyl alcohol ; Hybrid composite ; Functionalization ; Dynamic mechanical analysis ; Physics ; QC1-999 ; Chemistry ; QD1-999
Subject code	621
Language	English
Publishing date	2023-06-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Gestational glucose intolerance (GGI) and gestational diabetes mellitus (GDM) among antenatal women attending urban community health centers of Lucknow

Pradeep K Gautam / Monika Agarwal / Anjoo Agarwal / V K Singh / Sugandha Jauhari

Journal of Family Medicine and Primary Care, Vol 12, Iss 4, Pp 611-

A cross-sectional study

2023 Volume 618

Abstract: Background: Gestational diabetes mellitus (GDM) is an emerging public health concern in India, which has detrimental effects on both the mother and the baby. The data on prevalence of GDM was unavailable at secondary urban health facilities, from where a ...

Abstract	Background: Gestational diabetes mellitus (GDM) is an emerging public health concern in India, which has detrimental effects on both the mother and the baby. The data on prevalence of GDM was unavailable at secondary urban health facilities, from where a majority of pregnant women seek antenatal services, and the following study identifies this burden. Methods: A cross-sectional study was conducted from May 2019 to June 2020 among pregnant women attending the antenatal outpatient department (OPD) at secondary level health facilities in urban Lucknow. A semi-structured interview schedule was administered to the study subjects for collecting the relevant information and 75 g of oral glucose tolerance test was performed irrespective of the meal. The cut-off points taken for the diagnosis of GDM and gestational glucose intolerance (GGI) was as per the guidelines of the Ministry of Health and Family Welfare for diagnosis of GGI/GDM. Results: The overall prevalence of GDM and GGI in the study was 11.6% and 16.8%, respectively. Three-fourth of the women (22/29) were diagnosed with GDM in the second trimester of pregnancy. The prevalence of GDM (16.7%) was significantly higher in pregnant women aged more than 25 years and in those who were overweight. Mean birth weight (3.2 ± 8.1 kg) of the babies was significantly higher in the women with GDM. Among the fetal complications was respiratory distress observed among 28 pregnant women and 31% of them had GDM and this was statistically significant. Conclusion: The prevalence of GGI and GDM was found 16.8% and 11.6%, respectively. Gestational age, pre-pregnancy weight, pre-pregnancy BMI, weight gain during the pregnancy, family history of diabetes. PCOS, macrosomia and GDM in prior pregnancies was found to significant with GDM in the study.
Keywords	antenatal ; community health centres ; gestational diabetes mellitus ; gestational glucose intolerance ; pregnant women ; Medicine ; R
Subject code	360 ; 941
Language	English
Publishing date	2023-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: SELF-SIMILAR MAGNETO RADIATIVE SHOCK WAVES IN GENERALIZED ROCHE MODEL

V. K. SINGH

Proceedings of Indian National Science Academy, Vol 22, Iss

2015 Volume 3

Abstract: SELF-SIMILAR MAGNETO RADIATIVE SHOCK WAVES IN GENERALIZED ROCHE ... ...

Abstract	SELF-SIMILAR MAGNETO RADIATIVE SHOCK WAVES IN GENERALIZED ROCHE MODEL
Keywords	Science ; Q
Language	English
Publishing date	2015-01-01T00:00:00Z
Publisher	Indian National Science Academy
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Site-specific nutrient management

U P SHAHI / V K SINGH / ABHINAV KUMAR / P K UPADHYAY / P K RAI

The Indian Journal of Agricultural Sciences, Vol 92, Iss

impact on productivity, nutrient uptake and economics of rice-wheat system

2022 Volume 2

Abstract: A field experiment was conducted on Typic Ustochrept soil at the Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, for two years (2014â€“15 to 2015â€“16) to evaluate site specific nutrient management (SSNM) ...

Abstract	A field experiment was conducted on Typic Ustochrept soil at the Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, for two years (2014â€“15 to 2015â€“16) to evaluate site specific nutrient management (SSNM) against state recommendation (SR), integration of SSNM and SR with crop residue and farm yard manure. In terms of crop growth yield, nutrient uptake and economics, SSNM had significantly higher growth parameters, viz. number of tillers/m2 and dry matter accumulation as compared to SR in both rice and wheat crops. Different yield attributes, viz. number of grains/panicle or spike, test weight of rice and wheat were also higher with SSNM. SSNM out yielded for rice, wheat and rice-wheat system (RWS) productivity by 10.3%, 14.1% and 11.9%. System N, P and K uptake under SSNM was also higher by 24.36, 9.55 and 36.01 kg/ha, respectively, compared to SR. An additional income of `12953/ha over SR and maximum return/rupee invested (`2.50) was also recorded with SSNM. Recycling of 5 t/ha rice and wheat straw residue along with SSNM had added advantage.
Keywords	Economics ; Nutrient uptake ; Rice-wheat system ; Site-specific nutrient management ; Agriculture ; S
Subject code	571
Language	English
Publishing date	2022-03-01T00:00:00Z
Publisher	Indian Council of Agricultural Research
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Mitigating moisture stress in Brassica juncea through deficit irrigation scheduling and hydrogel in ustocherpts soils of semi-arid India

Sanjay Singh Rathore / Kapila Shekhawat / Subhash Babu / V.K. Singh

Heliyon, Vol 6, Iss 12, Pp e05786- (2020)

2020

Abstract: A field experiment was conducted to study the effect of irrigation scheduling and use of superabsorbent polymers on growth, seed and water productivity, soil moisture dynamics in Indian mustard under semi-arid conditions. During the first year of the ... ...

Abstract	A field experiment was conducted to study the effect of irrigation scheduling and use of superabsorbent polymers on growth, seed and water productivity, soil moisture dynamics in Indian mustard under semi-arid conditions. During the first year of the study, the increase in the mustard seed yield with irrigations applied at IW/CPE (Irrigation water, mm/Cumulative Pan Evaporation, mm (CPU) ratios 0.8, 0.6, 0.4 and no-irrigation (rainfed) with hydrogel application (+HG) was 18.6, 17.9, 14.4 and 28.3%, respectively, over no hydrogel (-HG). The seed yield enhancement by hydrogel application during the second year varied from 3% under sufficient irrigation to 24.9% under rainfed conditions. The pooled data indicated that the production indices and economics with hydrogel use improved significantly (P ≤ 0.05) under limited irrigation or rainfed condition. A net increase of 38, 27.7, and 10.7%, in production efficiency (PE), the net return, and profitability of mustard respectively was observed due to the use of hydrogel improved under the rainfed condition. Under limited irrigation (single irrigation at IW/CPE 0.4), a net increase of 24.2 and 31.8%, in the marginal and gross water productivity of mustard respectively, was recorded with hydrogel use. Similarly, in rainfed conditions, hydrogel increased gross water productivity by 22.6%. The energy intensity under irrigations scheduled at IW/CPE 0.8, 0.6, 0.4, and rainfed condition, was enhanced by 4.9, 5.9, 6.7, and 10.5%, respectively, due to hydrogel application. Thus, the use of hydrogel both under the rainfed condition and deficit irrigation has the potential to enhance productivity, profitability, and bio-energy output of Indian mustard in semi-arid agro-ecologies.
Keywords	Bio-energy dynamics ; Hydrogel ; Oil content ; Water productivity ; Relative water content ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Subject code	571
Language	English
Publishing date	2020-12-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Study to assess the home-based newborn care (HBNC) visit in rural area of Lucknow

Pankaj K Pathak / J V Singh / Monika Agarwal / V K Singh / Surya K Tripathi

Journal of Family Medicine and Primary Care, Vol 10, Iss 4, Pp 1673-

A cross-sectional study

2021 Volume 1677

Abstract: Introduction: Home-based newborn care (HBNC) is a strategy adopted by government of India to overcome the burden of newborn deaths in the first week of life, it provides continuum of care for newborn and post-natal mothers. HBNC introduced since 2011 is ... ...

Abstract	Introduction: Home-based newborn care (HBNC) is a strategy adopted by government of India to overcome the burden of newborn deaths in the first week of life, it provides continuum of care for newborn and post-natal mothers. HBNC introduced since 2011 is centred around Accredited Social Health Activist (ASHA) and it is the main community-based approach to newborn health. Aims and Objectives: The objective of the present study was to assess the HBNC during HBNC visit in rural area of Lucknow, Uttar Pradesh (U.P.). Materials and Methods: The present cross-sectional study was carried out in the field practice area of Primary Health Centre Sarojini Nagar, Lucknow UP. A total of 200 mothers of newborn (age 03 days to 60 days) born in the catchment area of PHC Sarojini Nagar during 8 months period were included in cross-sectional study. Results: The result of study showed that majority of newborns got all the age appropriate home visit. None of the mothers had knowledge and awareness about the HBNC provision for home visits and the number of home visit by ASHA decreases as age of baby increases. All the ASHAs were aware about the schedule of home visit, the number of home visit in case of home delivery and institutional delivery. Conclusion and Recommendation: ASHA was found to be the major facilitator for HBNC programme. Knowledge and awareness of ASHA on importance of postnatal care needs to be enhanced via hands on training.
Keywords	asha ; hbnc ; neonatal mortality rate ; newborn ; postnatal care ; Medicine ; R
Subject code	360
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Efficacy and safety of azilsartan medoxomil and telmisartan in hypertensive patients

Megha Garg / Geetesh Manik / Alok Singhal / V K Singh / Rohit K Varshney / Aseem Sethi

Saudi Journal of Medicine and Medical Sciences, Vol 8, Iss 2, Pp 87-

A randomized, assessor-blinded study

2020 Volume 94

Abstract: Background: Few studies have compared the safety and efficacy of azilsartan medoxomil (AZL-M) and telmisartan in hypertensive patients, especially using ambulatory blood pressure monitoring (ABPM). Objective: The objective of this study was to compare ... ...

Abstract	Background: Few studies have compared the safety and efficacy of azilsartan medoxomil (AZL-M) and telmisartan in hypertensive patients, especially using ambulatory blood pressure monitoring (ABPM). Objective: The objective of this study was to compare the efficacy and safety profile of AZL-M and telmisartan in hypertensive patients using ABPM and clinic blood pressure (BP) monitoring. Materials and Methods: This prospective, randomized, open-label, blinded endpoint, parallel-arm study included 700 patients, aged 18–70 years, with clinic and 24-h mean ambulatory systolic BP (SBP) of 150–180 mmHg and 130–170 mmHg, respectively. They were randomized equally into two groups: Group A received AZL-M 40 mg and Group T received telmisartan 40 mg; the dose was force titrated to 80 mg after 2 weeks if the response rate was not achieved. BP (clinical and ambulatory) was measured after 12 weeks and compared with baseline measurements. Results: AZL-M significantly reduced the 24-h mean ambulatory SBP (Group A: 112.74 ± 7.58 mmHg; Group T: 113.96 ± 8.52 mmHg;P < 0.0001) and diastolic BP (Group A: 71.39 ± 5.89 mmHg; Group T: 67.29 ± 6.79 mmHg;P < 0.0001) compared with telmisartan at week 12. The clinic SBP significantly decreased in Group A at weeks 4 (−30.69± −0.33 mmHg) and 12 (−39.69± −1.09 mmHg) (for both, P = 0.0001). Dose titration was done in 99 and 128 patients from Group A and Group T, respectively (P = 0.012). Headache was the most common adverse drug reaction (Group A: 21; Group T: 27) and fatigue the least. Conclusion: This study found that AZL-M has greater antihypertensive efficacy than telmisartan, with comparable side effects. In addition, ABPM was shown to be a feasible method for such studies.
Keywords	adverse drug reaction ; ambulatory blood pressure monitoring ; azilsartan medoxomil ; hypertension ; telmisartan ; Medicine ; R
Subject code	610 ; 796
Language	English
Publishing date	2020-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Independent and interactive effects of eCO2 and eTemp. on Spodoptera frugiperda (J E Smith) on Maize-A major input for prediction of future pest scenario

M Srinivasa Rao / T V Prasad / M Vanaja / D L A Gayatri / K Srinivas / G Pratibha / Srinivas I / C A Rama Rao / M Prabhakar / S K Yadav / S Bhaskar / V K Singh

Environmental Research Communications, Vol 5, Iss 1, p

2023 Volume 015008

Abstract: Climate change is now unequivocal and influences crops and the incidence of insect pests. Understanding the spatially variable, species-specific, and complex effects of climate change is essential in developing an appropriate pest management strategy. ... ...

Abstract	Climate change is now unequivocal and influences crops and the incidence of insect pests. Understanding the spatially variable, species-specific, and complex effects of climate change is essential in developing an appropriate pest management strategy. The two dimensions of climate change i.e., elevated temperature ( e Temp.) and elevated CO _2 ( e CO _2 ) influence insect herbivores. In the present study, the growth and development of an invasive insect pest, fall armyworm, Spodoptera frugiperda (J E Smith) (Lepidoptera: Noctuidae) on maize at e CO _2 and e Temp conditions using CO _2 and temperature Gradient Chambers (CTGC) was estimated. Dilution of bio-chemical constituents was noted with lower leaf nitrogen (9%–14%), higher carbon (3%–11%), higher C : N (18%–26%), and higher tannins (13%) in maize foliage at e CO _2 + e Temp levels. A significant influence on primary parameters of insect viz., higher total consumption by larvae (38%), extended larval duration (13%) with increased larval weights (17%), and differential pupal weights (14%) in successive generations was recorded at e CO _2 + e Temp compared to ambient. Their effect was continued on various insect performance indices also, with higher relative consumption rate, RCR (40%), lower relative growth rate, RGR (11%), and varied approximate digestibility (AD), the efficiency of conversion of ingested food (ECI) and digested food (ECD) of S frugiperda larvae. The interactive effect of e CO _2 and e Temp led to a higher Potential Population Increase Index (PPII) (19%) due to higher fecund adults. The effect of e CO _2 offsets the impact of e Temp when interacting together on some of the insect parameters. The present results indicate that e CO _2 and e Temp play a key role in influencing the growth and development of S frugiperda indicating higher pest incidence in future climate change periods.
Keywords	spodoptera frugiperda ; maize ; elevated CO2 and elevated temperature ; generations ; insect performance indices ; potential population increase index ; Environmental sciences ; GE1-350 ; Meteorology. Climatology ; QC851-999
Subject code	333
Language	English
Publishing date	2023-01-01T00:00:00Z
Publisher	IOP Publishing
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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