Lower Number Of Days Research Articles

Opioid prescription patterns among commercially insured children with and without cerebral palsy.

This study aimed to describe opioid prescription patterns for children with vs. without cerebral palsy (CP). This cohort study used commercial claims from 01/01/2015-12/31/2016 and included children aged 2-18 years old with and without CP. Opioid prescription patterns (proportion exposed, number of days supplied) were described. A zero-inflated generalized linear model compared the proportion exposed to opioids in the follow-up year (2016) and, among those exposed, the number of days supplied opioids between cohorts before and after adjusting for age, gender, race, U.S. region of residence, and the number of co-occurring neurological/neurodevelopmental disabilities (NDDs). A higher proportion of children with (n = 1,966) vs. without (n = 1,219,399) CP were exposed to opioids (12.1% vs. 5.3%), even among the youngest age group (2-4 years: 9.6% vs. 1.8%), and had a greater number of days supplied (median [interquartile range], 8 [5-13] vs. 6 [4-9] days; P < 0.05). Comparing children with opioid exposure with vs. without CP, a greater number of days supplied was identified for older age, Asian race/ethnicity, and without co-occurring NDDs, and a lower number of days supplied was observed for Black race/ethnicity and with ≥1 co-occurring NDDs. Children with CP are more likely to be exposed to opioids and have a higher number of days supplied.

An empirical attempt to identify binge gambling utilizing account-based player tracking data

Binge gambling is a relatively under-explored area and the few published studies have all used self-report data (i.e. surveys and interviews). The use of account-based tracking data has increasingly been used to identify indicators of problem gambling. However, no previous study has ever used tracking data to operationalize and explore binge gambling. Therefore, the present study investigated whether it is possible to identify behavioral patterns that could be related to binge gambling among a real-world sample of online gamblers. The authors were given access to an anonymized secondary dataset from a British online casino operator comprising 150,895 online gamblers who gambled between January and March 2023. Using 14 parameters of gambling (e.g. total number of gambling days, total number of gambling sessions, average amount of money spent per game), six distinct clusters of gamblers were identified. Two clusters – Cluster 2 (n = 22,364) and Cluster 5 (n = 12,523) – gambled on a relatively low number of days during three months, but displayed a high gambling intensity on those days compared to the other four clusters. These two profiles could potentially match the habits of binge gamblers. The majority of players retained their behavior in the following three months between April and June 2023 and were consequently assigned to the same cluster in the latter time period. A total of 17% of gamblers in Cluster 3 and 29% of gamblers in Cluster 5 stopped gambling entirely between April and June 2023. The findings suggest that binge gambling may be able to be identified by online gambling operators using account-based tracking data and that targeted interventions could be implemented with binge gamblers.

Exploring agro-morphological profiles of Phaseolus vulgaris germplasm shows manifest diversity and opportunities for genetic improvement

Common bean (Phaseolus vulgaris) is a seed crop with huge potential to contributing to food security in developing countries. In crop improvement, assessing genetic variability is a decisive step, requiring characterization of available crop germplasm. The present study aims at characterizing 39 common bean genotypes from various locations in Cameroon and five from Kenya using 19 qualitative and 36 quantitative traits of high descriptive values. Diversity among germplasm was assessed by determining diversity indices and carrying out multivariate analysis. Seventeen out of the nineteen qualitative traits (89.47%) were polymorphic, displaying each at least two phenotypic classes. High diversity was found. Average observed and expected number of phenotypic classes per trait were 3.74 and 2.53 respectively. Nei's genetic diversity value of 0.49 and Shannon-Weaver diversity index estimates of 0.74 were found. Significant differences were observed among genotypes for all measured quantitative traits. Yield traits showed significant correlation with other related quantitative traits. Cluster analysis separated the studied germplasm into three distinct groups, with the clustering pattern not showing any connection with location. The test of equality revealed significant difference between these clusters for most quantitative traits. Mahalanobis D2 statistics revealed germplasm of cluster I and III as potential parents for future breeding programs. This study identified genotypes with desirable agronomic traits such as higher number of seeds per pod, lower number of days to maturity, higher number of pods per plant, and higher yield. These and other important discriminatory traits are discussed and proposed for genetic improvement of common bean.

Quantitative SARS-CoV-2 subgenomic RNA as a surrogate marker for viral infectivity: Comparison between culture isolation and direct sgRNA quantification.

Detection of subgenomic (sg) SARS-CoV-2 RNAs are frequently used as a correlate of viral infectiousness, but few data about correlation between sg load and viable virus are available. Here, we defined concordance between culture isolation and E and N sgRNA quantification by ddPCR assays in 51 nasopharyngeal swabs collected from SARS-CoV-2 positive hospitalized patients. Among the 51 samples, 14 were SARS-CoV-2 culture-positive and 37 were negative. According to culture results, the sensitivity and specificity of E and N sgRNA assays were 100% and 100%, and 84% and 86%, respectively. ROC analysis showed that the best E and N cut-offs to predict positive culture isolation were 32 and 161 copies/mL respectively, with an AUC (95% CI) of 0.96 (0.91-1.00) and 0.96 (0.92-1.00), and a diagnostic accuracy of 88% and 92%, respectively. Even if no significant correlations were observed between sgRNA amount and clinical presentation, a higher number of moderate/severe cases and lower number of days from symptoms onset characterized patients with sgRNA equal to or higher than sgRNA cut-offs. Overall, this study suggests that SARS-CoV-2 sgRNA quantification could be helpful to estimate the replicative activity of SARS-CoV-2 and can represent a valid surrogate marker to efficiently recognize patients with active infection. The inclusion of this assay in available SARS-CoV-2 diagnostics procedure might help in optimizing fragile patients monitoring and management.

Non-Intubated Video-Assisted Thoracoscopic Surgery.

Double-lumen intubation under general anesthesia is currently the most commonly performed intubation technique for pneumonectomy, wedge resection of the lung, and lobectomy. However, there is a high incidence of pulmonary complications arising from general anesthesia with tracheal intubation. Non-intubation with the preservation of voluntary breathing is an alternative to anesthesia. Non-intubation procedures minimize the adverse effects of tracheal intubation and general anesthesia, such as intubation-related airway trauma, ventilation-induced lung injury, residual neuromuscular blockade, and post-operative nausea and vomiting. However, the steps for non-intubation procedures are not detailed in many studies. Here, we present a concise non-intubated protocol for the performance of video-assisted thoracoscopic surgery with preserved autonomic breathing. This article identifies the conditions necessary to convert from non-intubated to intubated anesthesia and also discusses the advantages and limitations of non-intubated anesthesia. In this work, this intervention was performed on 58 patients. In addition, the results of a retrospective study are presented. Compared with intubated general anesthesia, patients in the non-intubated video-assisted thoracic surgery group had lower rates of post-operative pulmonary complications, shorter operative times, less intraoperative blood loss, shorter PACU stays, a lower number of days to chest drain removal, less post-operative drainage, and shorter hospital stays.

Nebulised hypertonic saline solution for acute bronchiolitis in infants.

Nebulised hypertonic saline solution for acute bronchiolitis in infants.

Reduction in the COVID-19 pneumonia case fatality rate by silver nanoparticles: A randomized case study

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19), has devastated mankind. To date, no approved treatment is available to completely combat this disease. Although many studies reported the potential of silver nanoparticles’ (AgNPs) action mechanism and effect against SARS-CoV-2, this is the first clinical trial that aimed to prove this effect. This open-label, randomized, parallel-group, investigator-initiated study (IIS) was conducted in India from 2021 to 2022 and included 40 patients diagnosed with moderately-severe to severe COVID-19 pneumonia. This study proved a significantly higher survival rates (p < 0.05) and significantly lower number of days until supplemental oxygenation was required (p < 0.0001) for patients receiving intravenous AgNPs in form of AgSept® in addition to the standard COVID-19 treatment. This study highlights the importance of intravenous AgNPs administration in the treatment of virus-induced pneumonia.

The effect of dietary halloysite supplementation on the performance and meat quality of pigs and some air indices in piggery

Halloysite, a clay mineral of the kaolin, has specific properties, characteristic for the conditions in which it was formed. The aim of the study was to determine the effect of halloysite from the Dunino deposit in a complete diet for pigs on daily body weight gain (BWG), feed conversion ratio (FCR), blood parameters, chemical composition of meat and chosen environment indices in the piggery. The trial was conducted on 144 piglets from weaning (d 29) to 85th day of life, then on 40 porkers divided into two groups. Animals were fed diets without (group C) or with halloysite (group E; 1.5% until d 128, then 1.0%). Pigs from group E were characterized by a lower number of days with diarrhea. The average BWG in E group was 44 g higher than in group C (P < 0.01). In turn, during the fattening period, the difference in BWG between groups was 60 g in favor of E (P < 0.05) and average FCR in group E was 4.9% lower compared to group C (P < 0.05). At the end of the study, the pigs from group E had 6.9% higher final body weight (P < 0.01). During both the morning and evening measurements, ammonia concentration in the air was lower by 16.3% and 23.8%, respectively. The use of halloysite enabled improvement of pig fattening efficiency, while reducing the costs of pork production and the negative effect of ammonia on the animals' welfare and environment.

Prediction of Noninvasive Ventilation Failure in COVID-19 Patients: When Shall We Stop?

In coronavirus disease 2019 (COVID-19), there are no tools available for the difficult task of recognizing which patients do not benefit from maintaining respiratory support, such as noninvasive ventilation (NIV). Identifying treatment failure is crucial to provide the best possible care and optimizing resources. Therefore, this study aimed to build a model that predicts NIV failure in patients who did not progress to invasive mechanical ventilation (IMV). This retrospective observational study included critical COVID-19 patients treated with NIV who did not progress to IMV. Patients were admitted to a Portuguese tertiary hospital between October 1, 2020, and March 31, 2021. The outcome of interest was NIV failure, defined as COVID-19-related in-hospital death. A binary logistic regression was performed, where the outcome (mortality) was the dependent variable. Using the independent variables of the logistic regression a decision-tree classification model was implemented. The study sample, composed of 103 patients, had a mean age of 66.3 years (SD=14.9), of which 38.8% (40 patients) were female. Most patients (82.5%) were autonomous for basic activities of daily living. The prediction model was statistically significant with an area under the curve of 0.994 and a precision of 0.950. Higher age, a higher number of days with increases in the fraction of inspired oxygen (FiO2), a higher number of days of maximum expiratory positive airway pressure, a lower number of days on NIV, and a lower number of days from disease onset to hospital admission were, with statistical significance, associated with increased odds of death. A decision-tree classification model was then obtained to achieve the best combination of variables to predict the outcome of interest. This study presents a model to predict death in COVID-19 patients treated with NIV in patients who did not progress to IMV, based on easily applicable variables that mainly reflect patients' evolution during hospitalization. Along with the decision-tree classification model, these original findings may help clinicians define the best therapeutical approach to each patient, prioritizing life-comforting measures when adequate, and optimizing resources, which is crucial within limited or overloaded healthcare systems. Further research is needed on this subject of treatment failure, not only to understand if these results are reproducible but also, in a broader sense, helping to fill this gap in modern medicine guidelines.

Working re-organisation due to the pandemic may negatively affect workers’ quality of life

Abstract Background From the beginning of 2020, the COVID-19 pandemic imposed many changes in the organization of our personal and professional life, allowing a shift to teleworking and hybrid working arrangements worldwide. The persistence of this condition determined the integration of these changes in the daily routine, and our aim was to investigate how these changes could affect workers’ Quality of Life (QOL) in the long run. Methods An online questionnaire was administered to 650 workers employed in an Italian company in July 2021. The domains considered were socio-demographic characteristics, QOL (WHOQOL-bref and Healthy Days), lifestyle, health status, physical activity, and work-related factors. Comparisons were performed with non-parametric tests. Results Among the 332 respondents (response rate = 51.1%), 79.2% were white-collar workers. The concern for the pandemic affected workers’ QOL, especially in the physical health and the environmental domains (p &amp;lt; 0.001 and p = 0.001, respectively), with lower values in subjects reporting the highest values of concern. A similar effect was found also for healthy days concerning physical and psychological health, and the ability to perform usual activities (p = 0.003, p = 0.003, and p = 0.029, respectively). As well, changes in working arrangements significantly affected the environmental and physical domains (p = 0.023 and p = 0.015, respectively) and the ability to do usual activities (p = 0.011), with lower values in those who interrupted the working activity. Workers whose activity required a shift to teleworking reported higher scores in the physical health domain (p = 0.041) and a higher number of days with good physical health (p = 0.002), while a lower number of days with good psychological health (p = 0.006). Conclusions These preliminary data revealed that organizational strategies adopted in working scenarios to contain the spread of COVID-19 may have an impact on workers’ QOL, as well as the concern for the pandemic. Key messages • Changes in the working arrangements due to pandemic may negatively affect the workers’ Quality of Life, especially for those who had to interrupt their working activity. • The shift to telework, even if appearing to be beneficial for physical health perception, seems to negatively affect workers’ psychological health.

Doing well while doing good? Gender effects in pro-social peer-to-peer lending

PurposeThe 2008 and 2020 crises reinvigorated discussions on the need to deepen financial inclusion through fintech. Peer-to-peer (P2P) lending facilitates pro-social direct lending to less “bankable” strangers while providing returns to at-times less experienced lenders. Information asymmetries and credit risk are substantial, and previous research finds suboptimal heuristics in for-profit lenders (Gonzalez, 2022). This study examines further the role of gender to facilitate “doing well while doing good”.Design/methodology/approachThis study examines 663 pro-social lending decisions by finance students on a mock P2P site. Testimonials were used to condition participants towards pro-social decision-making. Each participant was asked to make three lending decisions. The three loan applications were identical except for a female or male headshot (vs a control icon), and a randomly assigned difference in the trustworthiness or popularity of the male vs female loan applications among other lenders. Loan popularity is reported as a lower number of days needed to fund half the identical loan amount requested in the three loan applications (3 vs 11 days for headshot applications, and 7 days for control one).FindingsSelf-recognition in similar-age borrowers is more pronounced for lenders who have experienced financial trauma. Second, male lenders report higher confidence in their financial literacy and cash collateral. Third, cash collateral increases lending only to female borrowers. Fourth, higher perception of one's financial literacy increases confidence only when lending to females.Originality/valueThis is the first study to examine the role of gender, financial literacy, identification with borrowers, and collateral perception in pro-social P2P lending.

O059 Efficacy and safety of embolo-sclerotherapy of arteriovenous malformation based on the experience from a single specialist centre

Abstract Introduction To evaluate the efficacy and safety of EST, particularly foamed STS 3% in the treatment of arteriovenous malformations (AVMs) in a single specialist centre. Methods All patients with AVMs who underwent EST from 01 January 2015–31 December 2019 were retrospectively reviewed. Types of AVM were grouped into Schobinger's classification. All ESTs were performed either with foam sclerosants (STS 3% and polidocanol), ethanol, coils and/or other substances including Onyx and Gelfoam. Outcome measures included treatment effects and complications. Continuous variables were compared using ANOVA F test. Other discrete variables were compared using Chi-squared tests. Differences were considered significant at p&amp;lt;0.05. Results A total of 65 patients with AVMs, with a mean age of 36 years (range 1–74 years) were included. The age of patients with Type IV AVM were significantly (p=0.014) higher than others. The use of EST with foam STS was significantly lower for type IV AVM (0.0%) (p=0.003). Complications were significantly higher in type III AVM (21.1%)) (p=0.009). A total of 6 (9.2%) patients experienced complications for example, upper lip necrosis and partial facial weakness. The number of days in follow-up was not significantly different across all types of AVM. However, type II AVM showed a significantly lower number of days in follow-up (p=0.038). Conclusion EST, in particular foam sclerotherapy with STS 3%, was clinically effective and safe to treat patients with AVM. This study showed that foam sclerotherapy with STS 3% may be used as an alternative to ethanol in the treatment of AVMs. Take-home message EST, in particular foam sclerotherapy with STS 3%, was clinically effective and safe to treat patients with AVM. This study showed that foam sclerotherapy with STS 3% may be used as an alternative to ethanol in the treatment of AVMs.

Conservation Agriculture in Semi-Arid Zimbabwe: A Promising Practice to Improve Finger Millet (Eleusine coracana Gaertn.) Productivity and Soil Water Availability in the Short Term

Increasing within-season dry spells in Southern Africa in recent years have generated growing interest in conservation agriculture (CA) to secure crop yields, especially under rainfed systems. This study aimed to evaluate the effects of CA on finger millet’s (Eleusine coracana (L.) Gaertn) growth, yield and water use efficiency on nutrient-depleted sandy soils. Five treatments, namely (conventional tillage (control), conventional tillage + mulch (partial CA1), reduced tillage only (partial CA2), reduced tillage + mulching (partial CA3) and reduced tillage + mulching + intercropping (full CA)) were evaluated over two consecutive cropping seasons (2015/16 and 2016/17) on-farm in the village of Chidora in Hwedza District, southeast Zimbabwe. All mulched treatments had 15–32% more soil water content over the two growing seasons compared to the control. The higher soil water content under the mulched treatments significantly improved finger millet growth and development during both seasons as evidenced by the lower number of days to emergence (3 days less), greater shoot biomass, higher number of productive tillers and higher number of fingers produced. The full CA treatment achieved the best finger millet grain yield of 1.07 and 1.29 t ha−1 during the 2015/16 and 2016/17 seasons, respectively. Full CA, partial CA3 and partial CA1 increased finger millet grain yield by 70%, 14% and 17% during the 2015/16 cropping season compared to the control. During the 2016/17 cropping season, a similar trend in finger millet grain yield was observed. Full CA was also among the most efficient methods in terms of water utilization (WUE), especially during the 2015/16 season. We concluded that CA, particularly when practiced in full, was more effective at offsetting the water limitations imposed by intra-seasonal dry spells on finger millet and significantly improved productivity.

Omega-3 for the Prevention of Alcohol Use Disorder Relapse: A Placebo-Controlled, Randomized Clinical Trial.

BackgroundRecent studies have sought to identify the possible benefits of the intake of omega-3, an important component of neuronal membranes, for the treatment of alcohol use disorder.AimThe objective of the present study was to evaluate whether omega-3 supplementation is protective against alcohol use disorder relapse after hospital discharge.MethodsA randomized, double-blind, placebo-controlled study was carried out with severe alcohol dependence. Male inpatients were randomized to treatment with omega-3 (n = 59) or placebo (n = 52) for 3 months, participants were assessed after discharge at 1 month (T1), 2 months (T2), 3 months (T3), and 6 months (T4) with assessments made using self-report instruments. The primary outcomes were the possible reduction with assessments made using self-report instruments. The primary outcomes were the possible reduction in the number, intensity of relapses, amount of consumption in each relapse and number of days of consumption during relapses; as secondary outcomes were assessed symptoms of anxiety, depression, degree of dependence, compulsion, and craving.ResultsThe groups were similar regarding consumption amount parameters and propensity to relapse; however, an effect of treatment with omega-3 was found on the number of days of drinking at 2 months [B = 0.65 (0.09; 1, 21), p = 0.01] and 3 months [B = 2.6 (1.61; 3.58), p < 0.001] after discharge, favoring the intervention group. The effect was not maintained at follow up of 6 months. No differences were found in psychiatric symptoms and severity of addiction.ConclusionDespite the major limitations of the present study, the group that received omega-3 had a lower number of days of consumption of standard doses of alcohol in the evaluations of 60 and 90 days after discharge. More robust studies are needed to confirm or refute these findings. Brazilian Registry of Clinical Trials: n° RBR-48mkgz7 (URL: https://ensaiosclinicos.gov.br/rg/RBR-48mkgz7).

Relationship between Visibility, Air Pollution Index and Annual Mortality Rate in Association with the Occurrence of Rainfall—A Probabilistic Approach

An innovative method was proposed to facilitate the analyses of meteorological conditions and selected air pollution indices’ influence on visibility, air quality index and mortality. The constructed calculation algorithm is dedicated to simulating the visibility in a single episode, first of all. It was derived after applying logistic regression methodology. It should be stressed that eight visibility thresholds (Vis) were adopted in order to build proper classification models with a number of relevant advantages. At first, there exists the possibility to analyze the impact of independent variables on visibility with the consideration of its’ real variability. Secondly, through the application of the Monte Carlo method and the assumed classification algorithms, it was made possible to model the number of days during a precipitation and no-precipitation periods in a yearly cycle, on which the visibility ranged practically: Vis &lt; 8; Vis = 8–12 km, Vis = 12–16 km, Vis = 16–20 km, Vis = 20–24 km, Vis = 24–28 km, Vis = 28–32 km, Vis &gt; 32 km. The derived algorithm proved a particular role of precipitation and no-precipitation periods in shaping the air visibility phenomena. Higher visibility values and a lower number of days with increased visibility were found for the precipitation period contrary to no-precipitation one. The air quality index was lower for precipitation days, and moreover, strong, non-linear relationships were found between mortality and visibility, considering precipitation and seasonality effects.

Endoscopically placed venting gastrostomy can be a safe and effective palliative intervention in benign and malignant gastrointestinal obstruction

IntroductionChronic gastrointestinal obstruction can precipitate a constellation of symptoms including nausea, vomiting, abdominal distension and pain that negatively impact on health-related quality of life. Decompression via venting gastrostomy can offer...

Predictors of smoking cessation treatment attrition in individuals with substance use disorders

IntroductionAttrition rates in smoking cessation treatments are high, particularly in persons with substance use disorders. It is estimated that about 55%% disengage prematurely at treatment, meaning that a large portion will not benefit from smoking abstinence. So far, no previous studies have examined predictors of dropouts in a smoking cessation treatment with persons with SUD.ObjectivesThe study was two-fold: 1) to analyze the percentage of early-, late-dropouts and completers, and 2) to examine sociodemographic, psychological, and substance-related predictors of dropouts.MethodsA total of 86 participants (69.8% males; Mage=43.84, SD=9.917) were randomly assigned to two psychological smoking cessation treatment: cognitive-behavioral treatment (CBT) (n=51) or CBT + contingency management (CM) (n=35). Interventions were delivered during eight consecutive weeksResultsOf the 86 participants who completed the baseline assessment, 21 did not start treatment, 17 dropped out of treatment during treatment, and the remaining 48 completed the treatment. Predictors of early-dropout were younger age (B=-.234; p=.024; OR=.792) and lower number of days in SUD treatment (B= -.005; p=.026; OR=.995). Patients’ primary substance of use was associated with reduced early-dropouts; compared to cocaine users, alcohol (B=-1.827; p=.043; OR=.161) and opioids (B=-3.408; p=.018; OR=.033) related to improved attrition. Late dropout was directly related to higher number of tobacco use cessation attempts (B=.407; p=.039; OR=1.502).ConclusionsIncorporating strategies to improve attendance and completion rates in SUD populations should be a priority. Mobile reminders, offering online therapies, or CM to reinforce attendance to therapy may be considered.DisclosureNo significant relationships.

SURGERY FOR LUMBAR DISC HERNIATION: OPEN X MINIMALLY INVASIVE TECHNIQUE

ABSTRACT Objective: In Brazil, there are no studies comparing endoscopic treatment of lumbar disc herniation with the conventional open technique in SUS (Unified Health System) with regard to hospitalization time and complications occurring within one year, which is the objective of this study. Methods: A survey of 32 surgeries performed in 2019 (11 open and 21 endoscopic) to evaluate pain parameters before and after surgery (VAS), days of hospitalization, and complications. The data were submitted to statistical analysis (ANOVA) using the Kruskal-Wallis test. Results: Fourteen patients were female and eighteen were male, with a mean age of 41.35 years (p&gt; 0.05 between sexes). The pre- and postoperative VAS for pain radiating to the lower limb were similar between the groups: 8.5 ± 0.82 with the open technique and 8.19 ± 1.15 with endoscopic technique. In both groups there was an improvement in the pain pattern with a significant reduction in the VAS (p &lt; 0.05) and there was no statistical relevance between the groups in terms of pain improvement. There was statistical relevance between the groups in the comparison of days of hospitalization required, with the group submitted to endoscopic surgery having a lower number of days. The complications reported were compatible with those found in the literature (postoperative dysesthesia, new herniation). Conclusions: The endoscopic technique resulted in an important reduction in the number of days of hospitalization, a factor with a high impact on the costs of any surgical procedure, which can be a determining factor in the feasibility of minimally invasive techniques. Level of evidence IV; Therapeutic Study.

Cumulative Effect of Botanical Seed Pelleting and Foliar Spray on Morpho Physiological, Leaf Chlorophyll, Gas Exchange and Yield Parameters in Black gram

Background: Black gram is one of the important pulse crops of the world and India is the major producer and consumer of pulses in the world. One of the main reason for low productivity of pulses is that they are cultivated mostly in areas with low soil moisture and poor soil fertility. In order to overcome such adverse conditions, low-cost techniques like seed hardening/pelleting are preferred. Seed pelleting provides package of nutrients that influences seed or soil at the seed-soil interface. Since the cost involved is very less, an attempt has been made to study the effect of botanical seed pelleting and foliar spary on growth and yield parameters in black gram cv. CO 6. Methods: Field experiments were conducted to evaluate the cumulative effect of botanical seed pelleting with pungam leaf powder @ 150g kg-1 and foliar spray of prosopis and moringa leaf powders with different concentrations (2%, 4%, 6% and 8%) on morpho physiological, leaf chlorophyll, gas exchange and yield parameters in black gram cv. CO 6 in the study. The observations on morpho physiological, leaf chlorophyll, gas exchange and yield parameters were recorded, statistically analysed and discussed here.Result: From the results, it was found that among the treatments, seed pelleting with pungam leaf powder @ 150 g kg-1 + foliar spray of prosopis leaf powder @ 6% recorded higher morpho physiological parameters viz., plant height (48.73 cm), number of branches plant-1 (8.78), dry matter production (14.83 g plant-1), chlorophyll ‘a’ (1.03 mg g-1), chlorophyll ‘b’ (1.11 mg g-1) and total chlorophyll content (2.14 mg g-1), photosynthesis and transpiration rates (27.33 mg CO2 m-2 s-1 and 10.60 mg H2O m-2 s-1), intercellular CO2 concentration and stomatal conductance (274.30 µ mol mol-1 and 0.82 mol-2 s-1). This treatment also recorded lower number of days to first flowering (23.23 days), earliness in 50 per cent flowering (30.12 days) and also recorded higher yield parameters such as lengthier pods, more number of pods plant-1, pod yield plant-1, number of seeds pod-1, seed yield plant-1, seed yield ha-1 and hundred seed weight of 5.60 cm, 26.30, 8.20 g, 7.30, 5.30 g, 795.12 kg ha-1 and 5.83 g, respectively as compared to other treatments. To conclude, seed pelleting with pungam leaf powder @ 150 g kg-1 + foliar spray of prosopis leaf powder @ 6% proved to be the best in enhancing morpho physiological, growth and yield parameters.

Performance of rabi maize to fertigation durations and nitrogen levels

A field trial was conducted on clay soils of Advanced Post Graduate Centre, Lam, Guntur to study the effect of different nitrogen fertigation levels at different stages of maize on growth, yield attributes and yield of maize during rabi 2019-20. The experiment was laid out in RBD with twelve treatments i.e., 100% recommended dose of nitrogen (RDN) through soil application under surface irrigation (T1), 100% and 75% RDN through soil application under drip irrigation (T2 and T3 respectively), 100%, 75% and 50% RDN through fertigation up to 60 DAS (T4, T5 and T6 respectively), 100%, 75% and 50% RDN through fertigation up to 75 DAS (T7, T8 and T9 respectively) and 100%, 75% and 50% RDN through fertigation up to 90 DAS (T10, T11 and T12 respectively) and they were replicated thrice. At 90 DAS, among different surface application and nitrogen fertigation levels, the plants that received 100% RDN through fertigation up to 60 DAS (T4) recorded the highest plant height. Whereas, at harvest, highest dry matter and lower number of days to 50% flowering were observed with 100% RDN through fertigation up to 90 DAS (T10). Maize plants fertigated with 100% RDN up to 90 DAS (T10) recorded higher yield attributes and kernel yield when compared to other treatments.