Sulphur and nitrogen nutrition and their interactive effects on Dothistroma infection in Pinusradiata

1986 ◽  
Vol 16 (5) ◽  
pp. 1055-1062 ◽  
Author(s):  
Marcia J. Lambert
Keyword(s):  
Nitrogen Fertilizer ◽  
Nitrogen Nutrition ◽  
Fertilizer Application ◽  
Positive Influence ◽  
Interactive Effects ◽  
Strong Positive Correlation ◽  
Infection Level ◽  
Foliar Nutrition ◽  
Volume Increment ◽  
Negative Effect

Nitrogen and sulphur fertilizers were applied to a 4-year-old Pinusradiata plantation in northern New South Wales and the results were monitored for 7 years. The aim was to study the effects of sulphur and nitrogen nutrition on tree growth and their interactions on Dothistroma infection. Sulphur (300 kg S ha−1), applied as gypsum, elevated foliage sulphate sulphur levels for up to 7 years after treatment, but no direct effects on growth were noted. The low nitrogen fertilizer level (100 kg N ha−1) had a positive influence on volume increment, while the high nitrogen fertilizer application (400 kg N ha−1) significantly depressed volume increment. This latter negative effect was attributed to induced sulphur and phosphorus deficiencies. Sulphur deficiency resulted in highly increased arginine concentrations in current foliage and there was a strong positive correlation between arginine concentration and tree infection level of Dothistroma needle cast fungus, the highest levels of infection being in the nitrogen-treated plots. Relationships between foliar nutrition and foliar fungal infection are discussed.

scholarly journals Effect of Planting Date and Nitrogen Application Level on Production Yield and Oil Content in Dill Plant

2020 ◽  
Author(s):  
Saddam A. Al-Dalain
Keyword(s):  
Nitrogen Fertilizer ◽  
Growth Parameters ◽  
Block Design ◽  
Fertilizer Application ◽  
Positive Influence ◽  
Planting Date ◽  
Nitrogen Fertilizers ◽  
Oil Yield ◽  
Nitrogen Application ◽  
Planting Dates

A complete randomized block design with three replications was conducted at two consecutive growing seasons (2014-2015 and 2015-2016) to evaluate the influence of planting date and nitrogen application level on growth parameters and oil yield production of dill plant. Experimental factors included three planting dates (15th of October, 15th of November and 15th of December) and five levels of nitrogen fertilizer (i.e urea) application (0, 30, 60, 90 and 120 kg/hectare). Both studied factors significantly influenced growth parameters (plant height, number of branches per plant, number of umbrellas per plant, 1000 seed weight, above ground biomass yield, seed yield and harvest index) and oil yield and oil percentage The results indicated that early planting date (1st of October) has a positive influence on all studied parameters in this study. Furthermore, this study showed that addition of nitrogen fertilizers significantly improved all studied parameters. Comparing the influence of the two studied factors, it seems that planting date when compared to nitrogen fertilizer application has more pronounced influence on all studied production parameters of dill plant.

Pengaruh Hedonisme dan Religiusitas Terhadap Perilaku Konsumtif Mahasiswa

2020 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Arif Rahmat ◽  
Asyari Asyari ◽  
Hesi Eka Puteri
Keyword(s):  
Consumer Behavior ◽  
Positive Influence ◽  
Cluster Sampling ◽  
Sampling Techniques ◽  
Negative Effect ◽  
Consumptive Behavior

<div class="WordSection1"><p align="center"> </p><p><em>This study aims to analyze the influence of hedonism and religiosity on the consumptive behavior of students at the Faculty of Islamic Economics and Business, State Islamic Institute of Bukittinggi, West Sumatera, Indonesia. The population in this studi was 3,900 students and the sample was 363 of them that were selected by using the cluster sampling techniques. The results showed that hedonism has a positive influence on the consumptive behavior of students, it means that the higher of the level of hedonism, the higher the consumptive behavior of students. Meanwhile, religiosity was found to have the negative effect on the consumptive behavior of students, its meant that  the higher the level of religious students, the lower the consumptive behavior of students, this study suggests that hedonism and religiosity explain variations in student consumer behavior by 64.5%, while the remaining 35.5% % is explained by other variables not explored in this study. This finding shows that to manage consumption properly, students must control their hedonism and increase their level of religiosity so that they will far from consumptive habits.</em></p><p> </p></div><p align="center"><strong><br clear="all" /></strong></p>

Influence of a BactoFil microbiological preparation on the intensity of infection by Rhizoctonia solani and the effects on sugar beet yield and quality

2012 ◽  
pp. 102-109
Author(s):  
Suzana Kristek ◽  
Andrija Kristek ◽  
Dragana Kocevski ◽  
Antonija K. Jankovi ◽  
Dražen Juriši
Keyword(s):  
Sugar Beet ◽  
Rhizoctonia Solani ◽  
Nitrogen Fertilizer ◽  
Soil Analysis ◽  
Block Design ◽  
Sugar Content ◽  
Pathogenic Fungi ◽  
Fertilizer Application ◽  
Beet Root ◽  
Set Up

The experiment was set up on two types of the soil: Mollic Gleysols (FAO, 1998) and Eutric Cambisols where the presence of pathogenic fungi – sugar beet root decay agent – Rhizoctonia solani has been detected since 2005. In a two year study (2008, 2009), the experiment was set up by completely randomized block design in 4 repetitions and 16 different variants. Two beet varieties, Belinda, sensitive to pathogenic fungi R. solani, and Laetitia, tolerant to pathogenic fungi R. solani), were grown. The microbiological preparation BactoFil was applied in different amounts in autumn and spring. In addition, the nitrogen fertilizer application, based on the results of soil analysis, was varied. The following parameters were tested: amount of infected and decayed plants, root yield, sugar content, sugar in molasses and sugar yield. The best results were obtained by applying the microbiological preparation BactoFil, and by 30% reduced nitrogen fertilizer application. Preparation dosage and time of application depended on soil properties.

scholarly journals Splanchnic Vein Thrombosis in Acute Pancreatitis and Its Consequences

2021 ◽  
Vol 27 ◽  
pp. 107602962110102
Author(s):  
Łukasz Nawacki ◽  
Jarosław Matykiewicz ◽  
Ewa Stochmal ◽  
Stanisław Głuszek
Keyword(s):  
Acute Pancreatitis ◽  
Severe Disease ◽  
Vascular Complication ◽  
Strong Positive Correlation ◽  
Splanchnic Vein Thrombosis ◽  
Vein Thrombosis ◽  
Computed Tomography Scans ◽  
Negative Effect ◽  
Medical Histories ◽  
The Impact

Splanchnic vein thrombosis (SVT) is a serious vascular complication that can occur in patients with acute pancreatitis. We assessed the incidence of SVT and its relationship with acute pancreatitis (AP) and associated complications. We carried out a retrospective analysis of medical histories from patients hospitalized with AP in a single surgical center. Histories were acquired from patients with abdominal and pelvic computed tomography scans performed between the 2nd and 3rd day of hospitalization. We assessed the impact and extent of thrombosis over the disease course. We found a strong positive correlation (Cramer’s V coefficient = 0.34) between SVT and disease severity. Mortality in the study group was 7.2% (8 patients) of which 5 patients (62.5%) were diagnosed with SVT. We observed an increased incidence of death among patients with thrombosis, with results approaching significance ( P = 0.056). In our study, we found that SVT has a negative effect on the course of AP and is associated with more severe disease and increased mortality.

scholarly journals Soil Texture Alters the Impact of Salinity on Carbon Mineralization

Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 128
Author(s):  
Ruihuan She ◽  
Yongxiang Yu ◽  
Chaorong Ge ◽  
Huaiying Yao
Keyword(s):  
Soil Texture ◽  
Clay Soil ◽  
Sandy Loam ◽  
Microbial Community Composition ◽  
Clay Content ◽  
Interactive Effects ◽  
Silty Clay ◽  
C Mineralization ◽  
Negative Effect ◽  
Silty Clay Soil

Soil salinization typically inhibits the ability of decomposer organisms to utilize soil organic matter, and an increase in soil clay content can mediate the negative effect of salinity on carbon (C) mineralization. However, the interactive effects of soil salt concentrations and properties on C mineralization remain uncertain. In this study, a laboratory experiment was performed to investigate the interactive effects of soil salt content (0.1%, 0.3%, 0.6% and 1.0%) and texture (sandy loam, sandy clay loam and silty clay soil with 6.0%, 23.9% and 40.6% clay content, respectively) on C mineralization and microbial community composition after cotton straw addition. With increasing soil salinity, carbon dioxide (CO2) emissions from the three soils decreased, but the effect of soil salinity on the decomposition of soil organic carbon varied with soil texture. Cumulative CO2 emissions in the coarse-textured (sandy loam and sandy clay loam) soils were more affected by salinity than those in the fine-textured (silty clay) soil. This difference was probably due to the differing responses of labile and resistant organic compounds to salinity across different soil texture. Increased salinity decreased the decomposition of the stable C pool in the coarse-textured soil, by reducing the proportion of fungi to bacteria, whereas it decreased the mineralization of the active C pool in the fine-textured soil through decreasing the Gram-positive bacterial population. Overall, our results suggest that soil texture controlled the negative effect of salinity on C mineralization through regulating the soil microbial community composition.

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